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Nowadays there is a strong necessity to design an effective protection system that allows eliminating airborne incendiary devices. The thing is that balloons with attached incendiary materials, explosives and munitions present a great threat because with them it is possible to burn fields, destroy plants and animal life and endanger civilians and soldiers. The possible solution to the problem is the use of fiber laser systems.
To be more precise, laser systems are considered to become a perfect solution that enables to remove the threat of balloons and drones as well as even precision missiles. Although the balloons or kites moved across the border are pushed by the wind at a speed predominantly slower than the speed of sound, the speed of the laser beams is regarded as much faster (even equal to the light speed).
Therefore, fiber laser systems allow shooting down the incendiary balloons by high-quality laser beam in an enemy territory within a short time, with high certainty and high accuracy, without damaging the children who have been moved to fly the balloons. Moreover, compared to conventional solutions, weapons based on fiber laser technology are considered to offer more efficiency and accuracy, herewith, the economic cost of applying laser systems is quite low in contrast to the high cost of bullets.
It should be noted that Israel was the first developer of laser beam weapons against Qassams and missiles. Thus, Israelian researchers developed laser systems in 1996 to protect the territory. Nevertheless, despite the great results, the fiber laser technology was not ideal enough and required future improvements. Nowadays the increased manufacturing of high-speed and accurate missiles in large quantities leads to an urgent necessity in the improvement and creation of weapons based on fiber laser technology.
Finally, such laser systems play a crucial role because there is no substitute for them in the meantime. Additionally, the researchers confirm that they can overcome the challenges, for instance, when the effectiveness of fiber laser systems reduces under bad weather and atmospheric conditions and on rainy and cloudy days resulting in highly efficient protection.
That is why there is a current requirement to design powerful fiber lasers and to combine them with modern kinetic systems. The government of Israel plans to remove the threat of the tunnels by designing, developing and manufacturing energy weapon systems of the fiber laser.
If you are looking for a compact highly-efficient laser system, the Optromix company is ready to manufacture it. Optromix is a manufacturer of laser systems, optical fiber sensors, and optical monitoring systems. We develop and manufacture a broad variety of fiber lasers, high powered fiber lasers, and other types. We offer simple laser products, as well as sophisticated fiber laser systems with unique characteristics, based on the client’s inquiry. 
Moreover, our fiber lasers are exceptionally light and compact and can be embedded in other devices or used in mobile applications. Our company offers single-mode Erbium lasers and Ytterbium lasers as well as single-frequency fiber lasers (similar to DFB lasers), wavelength-tunable fiber laser systems, and unique DUV fiber laser system. 
We manufacture laser modules using our technologies based on the advanced research work and patents of the international R&D team. Laser processes are of high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

Nowadays fiber laser systems for engraving become more and more popular and even replace the old laser technology. Numerous modern industries apply direct laser marking in their operations. The thing is that that fiber lasers offer such an advantage for engraving as their ability to leave a permanent mark on any material. Additionally, such laser systems have resistance to any form of abrasion not involving any contact.
The operating principle of fiber laser engravers is based on the laser beam that is directed to the material and the material changes color depending on the time the two get exposed resulting in a mark. Herewith, the laser beam is originated from light amplification by energy radiation and absorption. The resonator components include glass fibers that can be pumped by diodes to emit a laser beam with a small wavelength, for instance, 1064.
Fiber laser engravers are popular because the engraved details are always precise, herein, they do not create a tear. To be more precise, the accuracy is maintained during the whole process. The fiber laser systems for engraving have a tiny diameter but high intensity. Thus, fiber lasers are perfect for marking such materials as plastics and hard metals.
It should be noted that fiber laser engravers include a laser engine, a control software, and a scan head. Laser systems can be used not only for engraving and marking, their applications also contain material removal, material cutting, and scribing. Moreover, fiber laser systems demonstrate high efficiency when compared to conventional lasers: they provide “speed, flexibility, and reliability that is required to process certification standards, and achieve maximum quality control.”
Different reasons make fiber lasers highly efficient:

• Compared to most lasers, fiber laser systems for engraving are not sensitive to movements. The thing is that “when most lasers are knocked, their whole laser alignments are thrown off. If the optics get misaligned, getting them to function again is not easy, and it requires a specialist.” Nevertheless, fiber lasers do not have these problems because they do not need for sensitive optics for the operation due to the laser beam emitted from the fiber’s interior side.
• Fiber lasers also provide high reliability due to the laser beam of high quality. The laser beam that is emitted from the fiber’s inner core is straight and ultra-focused. Also, it is possible to tune the laser beam.
• The power of fiber laser systems is also high-quality, however, it is easy to cool despite the high power output and intensity. Fiber lasers turn 70%-80% of the power generated resulting in high efficiency.

Optromix is a fast-growing fiber laser manufacturer and a vendor of optical fiber sensors and optical monitoring systems. The company offers fast turnkey solutions and creates sophisticated fiber laser systems for special purposes. Optromix uses only its technologies and develops a broad variety of fiber lasers. If you have any questions or would like to buy a laser system, please contact us at info@optromix.com

A team of researchers from Singapore has designed the first electrically driven topological laser system. Such a fiber laser can efficiently overcome manufacturing imperfections as well as corners due to the application of topologically protected photonic modes.
It should be noted that in the 1980s, the researchers discovered that electrons flowing in certain materials had “topological” qualities, therefore, installed in fiber laser systems they allowed flowing around corners or defects without scattering or leaking.
This topological technique has been recently applied to photons by the team of researchers from Singapore. They used a quantum cascade fiber laser on advanced semiconductor wafers developed by the team. To be more precise, the team exploited a design that included a valley photonic crystal to reach topological states on a laser beam platform.
The thing is that the design of the compact fiber laser system contains “hexagonal holes arranged in a triangular lattice, etched into a semiconductor wafer. Within the microstructure, the topological states of light circulate within a triangular loop with a 1.2-mm circumference. The loop acts as an optical resonator to accumulate the light energy required to form a laser beam.”
Herewith, here the laser beam light circulates in this loop as well as goes around the sharp corners of the triangle due to specific qualities of topological states while usually lightwaves are disturbed by the sharp corners, interfering them from circulating smoothly.
The quantum cascade fiber laser allows emitting laser beam light at terahertz (THz) frequencies. Although previous demonstrations needed for an external laser beam source for optical pumping, now the developed fiber laser is based on an electrically pumped THz quantum cascade technology that uses topologically protected valley edge states, thus, the application includes the valley degree of freedom in photonic crystals.
The thing is that electrically driven semiconductor laser systems are considered to be the most standard type of laser technology device at present and have a wide range of applications, from barcode readers to laser ranging sensors for autonomous vehicles.
Nevertheless, the manufacture of fiber laser systems has numerous challenges and modern laser module designs may not work well if any imperfections are introduced into the structure of the laser during manufacturing. Herewith, the new topological laser system solves the problem and can result in more efficient manufacturing employing existing laser technologies.
Optromix is a fast-growing fiber laser manufacturer and a vendor of optical fiber sensors and optical monitoring systems. The company offers fast turnkey solutions and creates sophisticated fiber laser systems for special purposes. Optromix uses only its technologies and develops a broad variety of fiber lasers. If you have any questions or would like to buy a laser system, please contact us at info@optromix.com

2019 has become a remarkable year in most fields of industry, containing fiber lasers. The thing is that trade tariffs of laser systems between the U.S. and China led to much of this uncertainty as well as various challenges such as having a negative influence on both the U.S. and China economies and a decline in U.S./China relations. 
The situation concerning fiber lasers remains complicated. Although China is considered to be the largest consumer of laser systems in the world, particularly in the materials processing area, and the U.S manufactures most of the fiber laser systems (at least at high-powers), the economy of both countries did not suffer from trade tariffs with negative direct impact on lasers.
It should be noted that there is an opportunity for fiber laser manufacturers to move their production around to other countries if required because most large U.S. companies are multi-national. Additionally, fiber lasers produced outside of the U.S. are not exposed to tariffs when transported to China because manufacturers of laser systems make them in Europe, for instance, then ship those fiber laser systems to China bypassing the trade tariffs. 
Also, it is possible to shift the laser system production to China resulting in the absence of tariffs again. Thus, smaller companies – fiber laser manufacturers in the U.S. without the opportunity selling to China suffered much harder. Besides, a lot of fiber lasers exported to China are regarded as “specialized, high-margin lasers without many substitutes, and trade tariffs usually do apply to these laser systems, but margins are great enough where the added cost can be absorbed by the manufacturer.” 
Nevertheless, it works only on fiber lasers that are employed for scientific and research purposes. The fact is margins are pretty high on these laser systems to stand against some of the trade tariffs, not completely but partially. Herewith, trade tariffs influenced Chinese fiber laser systems imported into the U.S. as well, however, it has been generally slight. 
The major part of Chinese laser systems is generally low-cost cutters and engravers with not much competition outside of China. Although the tariffs between the U.S. and China do not influence significantly on laser sales directly, the current situation is difficult to be called positive. Nowadays the main application of such laser systems is the manufacturing products, and in the shipment decrease of these manufactured products result in following sales of fiber laser systems.
If you are looking for a compact highly-efficient laser system, the Optromix company is ready to manufacture it. Optromix is a manufacturer of laser systems, optical fiber sensors, and optical monitoring systems. We develop and manufacture a broad variety of fiber lasers, high powered fiber lasers, and other types. We offer simple laser products, as well as sophisticated fiber laser systems with unique characteristics, based on the client’s inquiry. 
Moreover, our fiber lasers are exceptionally light and compact and can be embedded in other devices or used in mobile applications. Our company offers single-mode Erbium lasers and Ytterbium lasers as well as single-frequency fiber lasers (similar to DFB lasers), wavelength-tunable fiber laser systems, and unique DUV fiber laser system. 
We manufacture laser modules using our technologies based on the advanced research work and patents of the international R&D team. Laser processes are of high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

A ytterbium laser with thirtyfold compression by a gas-filled hollow-core fiber emits three-optical-cycle (10 fs) laser beam pulses, adding up to 318 W average power. The operating principle of such ultrafast laser systems is based on laser beam pulses of just a few optical cycles in length interwork with a matter in unique ways, for instance, in the case of its pushing beyond the research lab such laser systems offer a crucial advantage to the industry.
Nowadays a group of scientists from Germany has developed an ultrafast laser that produces multimillijoule three-cycle laser beam pulses at a 318 W average power level. Such development is highly important and promising for few-cycle laser technology creating new industrial applications, as well as the so-called HR2 laser system. A novel approach has been used here, the thing is that 300-fs-long laser beam pulses are directly compressed from a new, record-breaking high-energy, high-power laser system to the few-cycle duration.
It should be noted that a 30X compression is required, and it has only recently become possible by “the introduction of stretched flexible gas-filled hollow-fiber technology, offering almost unrestricted-length scalability.” A multichannel ytterbium laser is considered to be the largest of the kind that enables it to emit up to 10 mJ laser beam pulses at up to 1 kW average power and a 1.03 μm center wavelength applied as the light source.
Additionally, scientists employ a 6-m-long stretched flexible hollow optical fiber for the laser beam pulse compression. There is a self-phase modulation between the intense light and the gas atoms, which make the spectrum broader since the pulses from the ultrafast laser system spread through the argon gas filling the hollow waveguide. It is possible to compress the laser beam pulses with a substantially broadened spectrum to a shorter duration due to the opportunity to reduce their spectral phase with a set of chirped mirrors.
Thus, the ytterbium laser system has been already tested and demonstrated great results of producing multimillijoule 10 fs laser beam pulses at a 100 kHz repetition rate and an average power of 318 W, which is regarded as the highest average power ever achieved for a few-cycle fiber laser. Finally, such fiber laser technology promotes bringing high-power industry-grade laser systems into the few-cycle regime, therefore, enlarging new opportunities for industrial applications, for example, like highly parallelized materials processing. Also, the scientists confirm that this laser system favors completing the transformation of few-cycle technology from research devices to industrial tools.
If you are looking for a compact highly-efficient laser system, the Optromix company is ready to manufacture it. Optromix is a manufacturer of laser systems, optical fiber sensors, and optical monitoring systems. We develop and manufacture a broad variety of fiber lasers, high powered fiber lasers, and other types. We offer simple laser products, as well as sophisticated fiber laser systems with unique characteristics, based on the client’s inquiry. 
Moreover, our fiber lasers are exceptionally light and compact and can be embedded in other devices or used in mobile applications. Our company offers single-mode Erbium lasers and Ytterbium lasers as well as single-frequency fiber lasers (similar to DFB lasers), wavelength-tunable fiber laser systems, and unique DUV fiber laser system. 
We manufacture laser modules using our technologies based on the advanced research work and patents of the international R&D team. Laser processes are of high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

Military weapons based on fiber laser technology are considered to be agile, they have virtually infinite ammunition, enabling to take down different targets. Nonetheless, as fiber technology transforms, so modern military actions also change requiring advanced fiber laser weapons for everyday defense.
It should be noted that drones present a prominent security threat to military objects all around the world. Fiber laser weapons are regarded as a low-cost powerful solution for militaries. Moreover, the fiber laser technology offers such advantages as high precision, incredible flexibility, reusability, and it also allows minimizing collateral damage because the laser system weapons take out just the required target.
The operating principle of modern fiber laser weapons is based on decades of research. Such laser systems can operate on batteries utilizing a technology called a spectral beam combined fiber laser. To be more precise, this tiny powerful laser beam system applies artificially intelligent algorithms to stream fiber lasers into one larger laser beam.
The energy in the laser system weapons spreads by mirrors and lenses which enable the adjustments based on weather or atmospheric conditions. Additionally, the fiber laser weapons are not exposed to gravity or wind resistance. Thus, militaries “can take out engines, instantly burn tires, sink a boat or bring down drones in a fraction of a second” with weapons based on fiber laser technology due to significantly focused energy laser beams.
Also, it is not required to fire a new projectile, in the case of aim movement, it is enough to move the fiber laser. The advantages of laser system weapons as a munitions system include soldiers must not transport massive amounts of ammunition, rather just one weapons system. Herewith, it is not necessary to carry around dangerous munitions where accidents can happen because the powerful energy of laser beam weapons originates directly from generators or batteries.
Therefore, the lightweight of dangerous munitions also simply implies less cargo resulting in less equipment and more stealthy troop movements. Standard missiles also have a high cost, while fiber laser weapons have almost infinitely renewable power, that is why the cost of the fiber laser system is offset through not needing to permanently buy munitions. 
Nevertheless, all the mentioned benefits of laser system weapons do not mean full replacement of conventional munitions, they only compliment them. Nowadays there are fully functioning fiber laser systems ready for field testing, and some capabilities have been already demonstrated.
If you are looking for a compact highly-efficient laser system, the Optromix company is ready to manufacture it. Optromix is a manufacturer of laser systems, optical fiber sensors, and optical monitoring systems. We develop and manufacture a broad variety of fiber lasers, high powered fiber lasers, and other types. We offer simple laser products, as well as sophisticated fiber laser systems with unique characteristics, based on the client’s inquiry. 
Moreover, our fiber lasers are exceptionally light and compact and can be embedded in other devices or used in mobile applications. Our company offers single-mode Erbium lasers and Ytterbium lasers as well as single-frequency fiber lasers (similar to DFB lasers), wavelength-tunable fiber lasers systems, and unique DUV fiber laser system. 
We manufacture laser modules using our technologies based on the advanced research work and patents of the international R&D team. Laser processes are of high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

Recently a group of researchers consisted of five countries has presented a new theory, called the coherent master equation that studies the behavior of ultrashort pulsed lasers based on fast materials and highlights its effects of quantum coherence. To be more precise, the quantum coherence of the pulsed laser is considered to be “the ability of material and light electrons to oscillate in unison for some time”.
The thing is that these fiber laser systems allow emitting intense pulses of laser beam light of one billionth of a second at a constant rate, considerably influencing technologically and scientifically. According to the research, such discovery promotes the development of new types of fiber lasers, exceptionally with semiconductor materials, from quantum theory, which demonstrates the interactions between matter and luminous radiation electrons.
It should be noted that the use of mode-locked ultrashort pulsed lasers is highly promising, therefore, the laser system applications include such areas as medical-surgical, microscopy, spectroscopy or telecommunications techniques,  basic science experiments that favor research on fundamental phenomena. Also, the pulsed laser system plays a crucial role in accurate metrology based on optical frequency combs (a type of radiation applied in GPS or remote sensing technologies).
The thing is that these pulsed lasers are not new, they date back virtually to the very birth of the fiber laser systems, despite the fact that a simple and predictive theory of its behavior appeared later. Herewith, the laser system theory, called the master equation, has been created by Hermann A. Haus and greatly succeeded in the application of numerous pulsed laser types.
The research group consists of scientists from Spain, France, Italy, New Zealand, and the United Kingdom. They study the theory limitations associated with ultrashort pulsed lasers, which do not explain the laser behavior when the response of the amp medium is rapid pulse repetition frequency. To solve the problem, scientists have performed a set of semiconductor-based fiber laser experiments that affirm the theoretical predictions of their proposal. To be more precise, the coherent master equation enables them to define the coherent quantum effects observed by other groups in previous experiments under laser systems.
Finally, the scientists claim that the novel theory of ultrashort pulsed lasers enlarges opportunities to employ the rich phenomenology of these effects in the design of new types of ML fiber laser systems, which can result in new functionalities and applications, particularly in areas such as accurate metrology or optical communications.
Optromix is a fast-growing fiber laser manufacturer and a vendor of optical fiber sensors and optical monitoring systems. The company offers fast turnkey solutions and creates sophisticated fiber laser systems for special purposes. Optromix uses only its technologies and develops a broad variety of fiber lasers. If you have any questions or would like to buy a laser system, please contact us at info@optromix.com

A new fiber laser technology for the production of second-order nonlinear effects in materials that usually do not support them may result in new options for forming these effects for optical computers, high-speed data processors, and bioimaging. Thus, a team of researchers from Georgia demonstrates a technique, based on red fiber laser to produce the nonlinear effects.
To be more precise, for the laser system they develop an array of small plasmonic gold triangles on the surface of a centrosymmetric titanium dioxide or TiO2 slab in the laboratory. Then the gold structure is illuminated with a pulse of laser beam light. It should be noted that the laser beam operates like an optical switch, it breaks the crystal symmetry of the material. 
For instance, the laser beam pulse causes the electron excitation, when it is fired at the array of gold triangles on the TiO2 slab, herewith, such an excitation doubles the frequency of the laser beam from a second laser system as it reflects from the amorphous TiO2 slab. The fiber laser system has been already tested and demonstrated the blue laser beam that “shows the frequency-doubled light and the green beam that controls the hot-electron migration”.
The operating principle of the laser system is based on the optical switch that causes the excitation of high-energy electrons inside the gold triangles, therefore, some electrons go to the titanium dioxide from the triangles’ tips. “Since the migration of electrons to the TiO2 slab primarily happens at the tips of [the] triangles, the electron migration is spatially an asymmetric process, fleetingly breaking the titanium dioxide crystal symmetry optically.”
The red laser beam pulse leads to an instant induced symmetry-breaking effect. Nowadays it is possible to break optically the crystalline symmetry of conventionally linear materials, for example, amorphous titanium dioxide, thus, the fiber laser system allows making a range of optical materials wider. These materials can be then employed in numerous micro- and nanotechnology applications such as high-speed optical data processors.
A stable, continuous-wave laser system enables to produce the nonlinear effect last for as long as the fiber laser is turned on. Moreover, it is possible to control the number of migrated electrons through the intensity of the red laser beam light. To be more precise, more electrons appear inside the gold triangles when the intensity of the optical switch rises, and more electrons are put into the TiO2 slab. Nonetheless, the fiber laser system still requires future improvements but now it already offers numerous opportunities in the field of nonlinear nanophotonics as well as plays a crucial role in the field of quantum electron tunneling.
Optromix is a fast-growing fiber laser manufacturer and a vendor of optical fiber sensors and optical monitoring systems. The company offers fast turnkey solutions and creates sophisticated fiber laser systems for special purposes. Optromix uses only its technologies and develops a broad variety of fiber lasers. If you have any questions or would like to buy a laser system, please contact us at info@optromix.com

Traditional ultrasound imaging has been replaced by an alternative based on laser technology that does not need for body contact and can be utilized on patients who may not stand a probe on their body, for instance, burn patients or patients with sensitive skin as well as infants.
Safe tissue imaging has been performed by using a remote laser system focused from half a meter away. The laser technology was tested on the forearms of volunteers resulting in high-quality images, comparable to the standard ultrasound, where common tissue features such as muscle, fat, and bone down to about 5 cm below the skin were observable.
It should be noted that sound waves can go farther through the body than light, that is why the main problem is how to turn a laser beam’s light to sound waves at the surface of the skin, to image deeper in the body. 1550-nm lasers are used for tests because a laser beam wavelength is absorbed by water and safe for eye and skin with large safety margins.
The thing is that human skin consists largely of water, so researchers confirm that it should ideally absorb the wavelength of 1550-nm lasers and that it would heat up and expand in response. Then it is expected that the skin creates sound waves that spread through the body as the laser system wavelength returns to its standard state.
One pulsed laser at 1550 nm that emits sound waves and a second continuous laser system that remotely detects reflected sound waves are used for testing the idea. This second laser acts as a motion detector, it allows measuring vibrations in the skin surface. Herewith, skin surface motion, in its turn, changes in the laser beam’s frequency. Thus, the 1550-nm laser system enables to obtain data at various points and creates an image of the region.
The first tests of the developed laser system include imaging of metal components installed in gelatin (similar to water in skin),  imaging of animal tissues, then experiments in humans. Ultrasound scanning of forearms helps to develop the first fully non-contact laser system for safe tissue imaging. Additionally, the 1550-nm laser system allows clearly distinguishing the fat, muscle, and tissue boundaries.
It is planned to improve the used laser technology by increasing the laser system’s performance. Moreover, the researchers plan to update the detection laser beam’s abilities as well as to miniaturize the laser system set up resulting in the manufacture of a portable imaging device that may be used in the home.
Optromix is a fast-growing fiber laser manufacturer and a vendor of optical fiber sensors and optical monitoring systems. The company offers fast turnkey solutions and creates sophisticated fiber laser systems for special purposes. Optromix uses only its technologies and develops a broad variety of fiber lasers. If you have any questions or would like to buy a laser system, please contact us at info@optromix.com

More than 40 years have passed since the development of the first laser system, but this was enough to make quantum electronics one of the leading areas of science and technology. Numerous improvements of lasers and their application make it possible to obtain fundamentally new results in information systems and communications, in biology and medicine, in space and other scientific researches.
Laser beam emission is characterized by monochromaticity, sharp focus, due to which it is possible to concentrate laser beam energy and power at considerable distances, the ability to vary the modes of radiation from continuous to pulsed with different pulse durations, and finally, coherence and polarization. A unique combination of these properties allows realizing various interaction mechanisms – both thermal (plasma formation, ablation, evaporation, melting, heating), and non-thermal (spectral resonance) effects on matter, which affect complex atomic and molecular systems.
It is not surprising that the idea of using laser beam radiation in medicine appears one of the first. Over the past years, fiber laser devices and techniques have been used in almost all sections of medicine. Fiber lasers are especially successfully used in surgery, therapy and in the diagnosis of diseases. At the same time, it was discovered that each type of laser system operation, each laser-medical technique requires a specific combination of basic parameters of laser beam radiation and knowledge of the mechanisms of its interaction with various tissues.
Today there are three main areas of fiber laser application in medicine:

• New methods of non-invasive diagnostics: optical coherence tomography is considered to be a promising method for the diagnosis of ophthalmic and cancer diseases, laser spectral analysis of biomarker molecules in exhaled air for diseases of the gastrointestinal tract. 

It is these diagnostics that use such unique properties of laser beam radiation as high coherence and polarization, which distinguishes it from ordinary, even monochromatic, light.

• The therapy by fiber laser systems is widely used: irradiation with low-intensity laser systems of poorly healing wounds or human blood; in combination with photosensitizers, low-energy fiber lasers are used to selectively destroy cancer cells, atherosclerotic plaques, and treat macular degeneration (photodynamic therapy).
• Finally, powerful (high-energy) laser systems, which are used as a surgical tool in ophthalmology, otorhinolaryngology, urology, cosmetology. The surgery uses high-intensity laser systems that cause irreversible changes in tissues: welding, evaporation, ablation (removal and cutting).

The therapy by fiber laser systems is another area that has become most widespread in the whole world – irradiation with low-energy lasers of blood and poorly healing wounds.
For external use, laser system treatment occurs by exposure to certain areas and points of the body. The light penetrates through the tissues to a greater depth and stimulates the metabolism in the affected tissues, activates the healing and regeneration of wounds, there is a general stimulation of the body as a whole.
During intravenous fiber laser system therapy, the laser beam influences the blood through a thin light guide that is inserted into a vein. The intravascular effect of low-intensity radiation allows you to affect the entire mass of blood. This leads to stimulation of hematopoiesis, strengthening immunity, increasing the transport function of blood, and also helps to increase metabolism. Significantly positive effects in laser system therapy of angina pectoris, myocardial infarction, and other pathologies were obtained with the introduction of an optical fiber through which laser beam radiation was introduced into the patient’s elbow vein.
Fiber laser radiation differs from ordinary, even monochromatic light by its coherence and polarization. There is a misconception that these special properties are responsible for the observed clinical and photobiological effects. As laser beam penetrates deeper into the biological tissue (skin, organ, blood), coherence and polarization persist only to a depth of 200-300 microns, and then these properties disappear and incoherent and non-polarized, monochromatic radiation spreads. Consequently, the beneficial effects observed during laser system therapy of various diseases are caused not by some special properties of fiber laser exposure, but they are similar to the action of ordinary unpolarized and incoherent light with an appropriate radiation wavelength.
Photons emitted by electrons of excited biomolecules form secondary radiation that propagates (scatters) in all directions and excites other biological tissue molecules, increasing the depth of effective exposure. Due to the diversity of biomolecules in the body, secondary radiation is broadband, incoherent and non-polarized.
Another factor that increases the depth of effective exposure is the transfer of excited molecules by blood and lymph throughout the body. It can be assumed that at depths exceeding 3 cm, the main biological effect is exerted not by the primary, laser beam radiation, but rather by the secondary scattered broadband incoherent and non-polarized radiation.
It is also very difficult to determine in practice the dose of absorbed laser beam radiation, since the proportion of reflected and absorbed radiation depends on many reasons, so some researchers believe that fiber laser system therapy is an art like all medicine.
Today, two applications of fiber laser selective excitation of material vibrational levels in the mid-IR region of the spectrum are distinguished: fiber laser surgery of soft and hard tissues and laser system evaporation of polymers for thin-film spraying. These fiber laser system applications are based on the ability of mid-IR lasers to cause thermal or thermomechanical changes in the materials being processed, which can be classified as phase changes rather than laser beam chemistry. Fiber lasers have great potential for creating precision surgical instruments, due to their ability to focus laser beam radiation into a small spot on the length. A larger penetration depth increases the number of damaged cells, while a shorter depth results in less material removal per pulse.
The goal of laser beam ablation is to remove a specific part of the tissue, leaving the surrounding tissue biologically alive. Surgical requirements, however, are often the opposite: high ablation rates are required in dentistry, while they should be minimal in refractive ophthalmology; cutting vascular tissues (brain surgery) requires some amount of surface coagulation (“thermal damage”) in order to achieve hemostasis (stop bleeding), while for non-vascular tissue (cosmetology) wound healing is better when there is no thermal damage.
Laser systems are finding new applications in PDT, a new cancer treatment method. Unsuccessful attempts to control the development of cancer remain a major problem. The main goal for patients with an incurable disease is to delay the development of the tumor. If the tumor is not large, the fiber laser system thermal ablation may become the treatment.
Photodynamic therapy (PDT) by laser systems is another minimally invasive strategy for the removal of tumors. The idea behind PDT is to use the toxicity of porphyrin to destroy tumors. Up to the present moment, it has mainly been used to treat superficial, malignant or pre-malignant lesions of the mucous membrane, carcinoma of the bladder, tumor of the esophagus or bronchus, a tumor on the head or neck, accessible through the endoscope. In combination with special catheters and the development of new photosensitizers, PDT by fiber laser systems can be effective for patients with solid tumors and especially with liver metastases. 
If you are looking for a compact highly-efficient laser system, the Optromix company is ready to manufacture it. Optromix is a manufacturer of laser systems, optical fiber sensors, and optical monitoring systems. We develop and manufacture a broad variety of fiber lasers, high powered fiber lasers, and other types. We offer simple laser products, as well as sophisticated fiber laser systems with unique characteristics, based on the client’s inquiry. 
Moreover, our fiber lasers are exceptionally light and compact and can be embedded in other devices or used in mobile applications. Our company offers single-mode Erbium lasers and Ytterbium lasers as well as single-frequency fiber lasers (similar to DFB lasers), wavelength-tunable fiber lasers systems, and unique DUV fiber laser system. 
We manufacture laser modules using our technologies based on the advanced research work and patents of the international R&D team. Laser processes are of high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com