Femtosecond laser system in nanolithography of crystals

It remains quite difficult to examine optical properties of materials that can be effectively used for development of advanced technologies in different fields of applications. The reason is challenging access to surface alteration that enhances new opportunities for light manipulation beyond already well-known optical properties.
Testing of optical properties is more difficult at nanoscale level. Even several decades of research did not make reliable in-depth optical characterization possible beyond the material surface. However, laser system lithography advances the optical properties research and allows etching a huge range of materials, as well as polymers, silicon, and even silica glass.
Now it is planned to extend 2D nanophotonic tools of high quality to 3D with the help of infrared femtosecond laser direct writing. Thus, this 3D technique will greatly change nonlinear optics and optical communication at the nanoscale level and even make the material manufacture more reliable.
Also, there is an alternative way that uses laser systems and micro-explosions inside crystals but this method has a lot of risks, such as lattice damage and crack propagation. Recently, a group of researchers proposed a novel way that has great potential is the creation of dense nanopores in the lattice using 3D laser system writing.
For the experiments, the researchers use a conventional 3D laser system writing with a ytterbium ultrafast fiber laser. The technique includes the following advantages:

  • required optical response due to nanophotonic element design and manufacture inside a crystal;
  • control possibility of properties, including pore size, filling fraction, direction and shape, nanopore lattice length thanks to the combination of 3D laser system writing and wet etching;
  • studying of both linear and circular laser beam polarizations.

Nevertheless, the proposed way is not ideal and 3-D photonic structures have some disadvantages:

  • their space isolation;
  • need for supporting walls;
  • shrinking and a low optical damage level.

Finally, the ability of lattice formation monitoring at the nanoscale level will be quite effective in practical photonic applications because it allows designing of compact, monolithic solid-state lasers.
Optromix is a fiber laser vendor that develops and produces femtosecond fiber lasers. Optromix provides world-class laser systems and it is our highest priority to deliver the best quality products to our clients. Our main specialization is manufacturing single frequency fiber lasers. If you are interested in Optromix femtosecond fiber lasers, please contact us at info@optromix.com

Laser diode system in food production

It is not a secret that laser systems are the most frequently used tool in different areas of human life, especially, in the industrial sphere. Today lasers make the process of food production easier and faster and help to control the quality of end products.
Thus, researchers from Spain have developed laser diode sensor that is able to reveal counterfeit olive oil that is often sold as extra virgin. It means that now it is possible to find out fake olive oil with the help of an optical sensor. This device differentiates similar olive oils by the difference in their quality.
The laser diode system includes laser diodes that allow detecting the fluorescence from spoiled oil that differs from that of real extra virgin. It should be mentioned that extra virgin oil is produced from pure, cold-pressed olives, while fake oil includes both cold-pressed and processed oil that has worse taste, appearance, and quality. The most popular example is the mixture of pure olive oil and cheaper oil.
The principle of laser system operation includes the use of laser diode sensor that is the source of the light measuring the fluorescence emission level and twenty qualities of data. The measurement of these parameters allows the estimation of fake oil presence concentration.
The laser diode sensor has been produced with the help of a 3D printer and has numerous advantages such as:

  • low cost both to manufacture and to operate;
  • compact size;
  • on-site analysis;
  • result generation in real time;
  • a potential way for quality control.

The problem of olive oil quality is national and even international one. Previously, its solution faced to an obstacle such as expensiveness but now it became real to eliminate counterfeit olive oil very fast and with low costs. Moreover, the frequency of fake olive oil is reducing due to the laser diode system.
Also, the researchers undertake the study with the aim of laser system operation control using the mixture of different olive oils, even those that were past their best before date and analyzed the results by chaotic algorithms.
Consequently, this method can be used at any time, to be precise, it is able to control the extra virgin olive oil quality until its packaging or after with the aim of fake brands or producer detection.
Optromix is a fiber laser vendor that develops and manufactures a broad variety of fiber laser systems. The company offers fast turnkey solutions and creates sophisticated fiber lasers for special purposes. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

Fiber laser systems in jewelry manufacturing industry

All the time jewelry is an indispensable part of human life. Jewelry is a way of decoration for women who are looking toward beauty and fashion. For men jewelry was a mean of payment because it has been used instead of money and was a sign of wealth.
As far as almost all jewelry is made of precious materials such as gold, silver, diamond etc., accurate and high quality manufacturing is necessary. Nowadays modern fiber laser technology advances jewelry industry and makes the process of its manufacturing easier.
Fiber laser systems have a great range of advantages:

  • it is reliable and low-cost technology;
  • fiber lasers ensure accurate cutting and quite high edge quality;
  • laser modules can cut complex shapes in a short time;
  • they have a high production ability;
  • laser systems meet all the manufacturing requirements.

The variety of metal materials for jewelry industry is not limited thanks to fiber laser technology. It is possible to cut metals of different thickness and create complicated shapes. Laser systems provide high level of precision, cut flexibility and productive capacity. Moreover, the technology expands new possibilities for jewelry designers because now it is not obligatory to use just traditional cutting methods for creating of complex forms.
Also, laser welding systems are ideally suited for different metal joining and jewelry repair application. These lasers have small size, portable design, but high welding quality. An additional point is that this type of fiber lasers is easy to use and its design allows reducing the price so even small companies can afford it.
Moreover, jewelry manufacturers quite often use fiber laser modules as marking machines with a great number of particular advantages that include:

  • ability of marking, etching and engraving different kinds of patterns, alphanumeric codes and even images;
  • no need for contact processing that allows saving metal;
  • long-lasting use of the marked patterns;
  • flexible marking technique of fiber laser systems;
  • short time period of processing

It should be mentioned that fiber laser systems are more advantageous than conventional CO2 lasers and replace them at the industry market because they ensure a lot of benefits such as faster metal processing, higher efficiency, high beam quality, low maintenance costs, ability to process highly reflective materials such as copper etc.
Optromix provides world-class fiber laser systems of the best quality. The company offers fast turnkey solutions and creates sophisticated laser systems for special purposes. Optromix uses only its own technologies and develops a broad variety of fiber lasers. If you are interested in Optromix fiber laser systems, please contact us at info@optromix.com

Laser systems provide fast data transmission from space to the Earth

It is not new information that lasers and laser systems became an essential part of modern life. The fields of their application are not limited by physics and medicine. Nowadays laser modules are quite often used at space stations and demonstrate good results that will be useful for space exploration.
At the present time a team of researchers is developing a novel technology that will provide a high-bandwidth communication between CubeSats and the Earth with the help of laser systems. This laser module technology enable the CubeSat to send a big amount of information with a second directional laser beam to keep the primary data beam on focus without using of any huge antennae or fuel wasting.
The CubeSat is considered to be a force for scientific, commercial, military and space progress due to its low cost and compact size that is about a loaf of bread. Moreover, CubeSats allow collecting data about the weather or anti-missile defenses and they can be sent up at the right moment instead of a single, huge satellite.
Nevertheless, CubeSats are not so good at data transmission because they are able to send the information that is equal to several images at a time. New laser systems allow transmitting a big amount of hyperspectral images quickly that is equivalent of the terabyte data transmission at a high rate.
It should be mentioned that even traditional radio system are not efficient with this type of information and CubeSats’ access is limited, that is why now space engineers consider the use of laser modules to be a faster means of communication. The advantages of such laser systems include better bandwidth, compact size and high power efficiency.
Unfortunately, the small size of CubeSats causes a lot of problems for lasers. The main problem is the need for a tilt of the entire satellite to aim the beam that is unacceptable because this costs time, energy, and fuel that the probe cannot afford to waste.
The new technology allows pointing laser module more precisely and keep it on the aim without needing to move the CubeSat or to use a high-powered laser system. This laser-pointing platform exploits a compact laser that is reflected in a small, standard, steerable MEMS mirror to direct it at the ground receiver.
The main advantage of the laser system is that not only does it point the laser, but it helps to keep it locked on the aim. Also the system has to recalibrate the mirror in orbit using two different color lasers (the data and the calibration beams). The technology allows producing a low-power system with the narrow laser beams on this small platform that is 10 to 100 smaller than it was before.
Optromix is a fast-growing manufacturer of fiber lasers, optical fiber sensors, and optical monitoring systems. The company creates sophisticated fiber laser systems for special purposes and uses only its own technologies. If you have questions or would like to buy a fiber laser system, please contact us at info@optromix.com

Solid-state laser systems take the place of conventional gas lasers

All the times fiber lasers are taken for very specialized and highly expensive devices that can be used only in the laboratory. Nevertheless, time moves on and lasers have been changed. Fiber laser modules have become more compact, more dependable and cheaper.
The fields of laser application continue to spread; they are used in such areas as surgery, welding, industries like the military and aerospace. Nowadays compact, high-output and cost-effective solid-state fiber laser systems take the place of traditional gas lasers in many spheres.
Usually five big subgroups of laser systems are identified:

  • Gas laser is a laser that bases on gases to produce coherent light. This type of lasers uses several gases for different aims (hologram making, laser printing, the Bar Code reading etc.). The advantages of gas laser module include high volume of inexpensive active material, its reliability, and quick heat removal from the cavity.
  • Liquid lasers use a liquid crystal as the resonator cavity. The fields of application are biomedical sensing, medicine, display screens, environmental sensing.
  • Plasma laser system includes plasmas produced by firing high-intensity beams of light. They are frequently used in the laboratory for astrophysical plasmas recreating.
  • Semiconductor lasers or laser diodes provoke laser vibration by flowing an electric current to semiconductor. The advantages are compact size, low cost and power consumption, easy use and high efficiency.
  • Solid-state laser systems use the same solid media as semiconductor lasers, however, in solid-state lasers the medium is made from crystal, glass, or ceramic materials.

Today solid-state lasers gain their popularity thanks to the power, accuracy, and high beam quality that make them equal to argon lasers. Also it became possible to produce new emission wavelengths and tunable sources of laser radiation with the help of this device. Moreover, the performance period of solid-state laser systems is double compared to argon lasers.
Solid-state laser modules are more reliable and firm than gas lasers that allow them to be used in several applications, for example, in medical devices. The main advantage is quite high energy efficiency. Solid-state lasers consume the tens of watts less than a typical air-cooled ion laser.
At the present time solid-state laser systems are used in the industry for welding, in marking, drilling, and cutting operations, in medicine for fragile procedures, in the military and aerospace industries for weapon systems and as detonation devices, in physics.
Optromix is a fast-growing manufacturer and a vendor of fiber lasers, optical fiber sensors, and optical monitoring systems. The company creates fiber laser systems for special purposes. Optromix uses only its own technologies based on the advanced research work. If you have any questions or would like to purchase a fiber laser system, please contact us at info@optromix.com

Modern fiber lasers enable new materials processing applications

Modern fiber lasers differ from other industrial laser sources by their brightness, stability, and flexibility. Also fiber laser systems are a widespread used in the manufacturing industry because of their efficiency, reliability quality and quite low laser cost of operation that make it possible for machines to cut, weld, mark, and micromachine materials.
All the industrial fiber lasers are distinguished by their unique properties that include a sealed optical cavity and a single-mode, guided-wave medium. It should be mentioned that modern fiber laser systems have an absolutely sealed optical path that is non-sensitive to environmental contamination; moreover, it remains optically aligned and doesn’t require an adjustment. Also fiber laser systems have either in-fiber or hermetically fiber-coupled internal components.
Pulsed and Continuous Wave (CW) Green Fiber LasersNevertheless, all the higher-power fiber lasers combine several single-mode modules into high-brightness delivery fiber in fused fiber combiners. Such a union of the waveguiding of a single-mode laser and the fully sealed optical cavity guaranties a reliable laser design that is fixed and measured during the manufacturing and has minimal change over time and temperature. Sealed pump diodes and unbreakable fiber technology allow creating fiber laser systems that can be used in production for several years without any settings or degradation.
The choice between fiber laser and disk laser sources depends on commercial considerations of service and support, and, of course, added-value features. Nowadays the main problem of fusing glass are resolved by fiber laser manufacturers and it is able to withstand the intensity that melts or ablates different metals, while disk laser manufacturers create the precision optical-mechanical-thermal design with the aim to make stable high-brightness output.
The fields of fiber laser application:

  • High-speed remote welding. At the present time laser welding is more preferable than ultrasonic and resistance welding because of the productivity and weld strength qualities.
  • Materials processing. The brightness, stability, and flexibility of fiber laser systems designs enable new materials processing use, even including on-the-fly settings or adaptation of the process to changes in materials in production.

Fiber lasers become an ideal solution for manufacturing because they have high beam quality and do not require any adjustment or maintenance.
Optromix is a fast-growing manufacturer and a vendor of fiber lasers, optical fiber sensors, and optical monitoring systems. The company offers fast turnkey solutions and is able to create sophisticated fiber laser systems for special purposes. Optromix uses only its own technologies based on the advanced research work and patents of international R&D team and develops a broad variety of high beam quality fiber lasers. If you have any questions or would like to purchase a fiber laser system, please contact us at info@optromix.com

Low phase noise fiber laser allow extending optical sensing

Nowadays the use of fiber lasers in interferometric optical sensing and other fiber-optic systems has allowed extending their reach all around the world. Until recently all fiber lasers contained an amount of noise because of the influence of quantum noise and technical vibrations. Quantum noise may be presented in a system where conventional sources of noise such as industrial noise, vibrations, fluctuations of voltage in the electric power supply, thermal noise, etc. are suppressed, whereas technical noise contains temperature fluctuations, laser vibrations, extra noise of the pump source, etc.
Eventually the demand for optical sensor systems has evoked a need for low phase noise fiber laser sources. The main advantage of the low-noise lasers is the performance of high-precision operations that is necessary for accurate optical measurement. The optical systems are used in many areas, for example, in oil and gas exploitation, pipeline integrity monitoring, perimeter security, and wind detection. They overcome other traditional systems due to passivity (no need for electronics), compactness, lightweight, reliability, and the ability of being multiplexed to interrogate vast sensor arrays, as well as longer sensing ranges with high dynamic range and response.
In an optical sensing system the optical fiber lasers always work as a very sensitive continuous sensor that responds to acoustic vibrations from the surroundings. Even the smallest environmental influence evokes the optical path length change in the fiber. The fiber lasers of this type are called distributed-feedback design or DFB lasers and have a short and robust laser cavity. Moreover, DFB fiber lasers ensure essentially low laser phase noise and spectral linewidth. Also packaging design and use of low-noise pump sources allow to decrease vibrations, acoustic and technical noise. Finally, low phase noise fiber laser is compact, easy to use, it consumes less power and has narrow spectral linewidth.
Low-noise fiber lasers are used in different oil fields to help locate the oil deposits, in geoseismic and subsea systems, in meteorology to measure wind speed and turbulence, and even in space missions to measure the strength and direction of the satellite magnetic field.  All the recited areas demand low phase noise as a crucial parameter of precise measurement data and clear images. The development of low phase noise fiber lasers continues and at the present time the laser systems become more compact, fiber coupled, high-reliability devices with low-phase-noise quality.
Optromix is a fiber laser, fiber sensors, and optical monitoring systems manufacturer who uses only its own technologies based on the advanced research work and patents of international R&D team. Optromix fiber lasers are exceptionally light and compact and can be embedded in other devices or used in mobile applications. If you have any questions or would like to purchase a low noise fiber laser, please contact us at info@optromix.com

Novel Femtosecond Lasers’ Application for Spaceflight Technologies

A team of researchers at NASA’s Goddard Space Flight Center has shown that it’s possible to weld glass to copper, glass to glass, and drill hair-sized pinholes in different materials for use in spaceflight applications. This research group is expanding its research into a more exotic glass, such as sapphire and Zerodur, and metals, such as titanium, Invar, Kovar, and aluminum. These materials often used in spaceflight instruments. The goal of studies is to weld larger pieces of materials and show that the femtosecond laser technology is effective at adhering windows onto laser housing and optics to metal mount among other applications.
The laser energy vaporizes it without heating the surrounding matter. Technicians can precisely target the laser and bond dissimilar that otherwise couldn’t be attached without epoxies.
Also, in addition to this, that another application is in the area of micromachining. The ability to remove small volumes of material without damaging the surrounding matter allows to machine microscopic features. Microscopic features include everything from drilling, hair-sized pinholes in metals to etching microscopic channels or waveguides through which light travel in photonic integrated circuits and laser transmitters.
Next, the team plans to compile a library of micromachining and welding capabilities.
We believe in developing a real sense of partnership with our customers. We are committed to understanding our customer’s needs and providing them with a broad variety of fiber lasers, СО₂ lasers, Ti: Sapphire lasers, dye lasers, and excimer lasers. We offer simple erbium fiber lasers and ytterbium fiber lasers, as well as sophisticated laser systems with unique characteristics, based on the client’s inquiry. We manufacture lasers using our own technologies based on the advanced research work and patents of international R&D team. Laser processes are of high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility.
If you are interested in Optromix femtosecond lasers, please contact us at info@optromix.com
 
 
 

Raman Scattering in High Power Fiber Lasers in Cancer Diagnosis

Lasers, specifically fiber lasers, are already implemented in medical diagnosis, treatments, and therapies. Scientific laser systems are promising for many fields of medical studies, one of them being cancer research and treatment. Cancer is one of the leading causes of morbidity and mortality worldwide with approximately 14 million new cases and 8.8 million cancer-related deaths per year, according to the World Health Organization (WOH). Late-stage presentation and inaccessible diagnosis and treatment are common.
In 2017, only 26% of low-income countries reported having pathology services generally available in the public sector. Only one in five low- and middle-income countries have the necessary data to drive cancer policy. The recommended management strategy, which can significantly reduce cancer mortality, is early diagnosis and treatment of cancer. Early diagnosis consists of three steps that must be integrated and provided in a timely manner:

  • awareness and accessing care
  • clinical evaluation, diagnosis, and staging
  • access to treatment

Early diagnosis is relevant in all settings and the majority of cancers. In absence of an early diagnosis, patients are diagnosed at late stages when curative treatment may no longer be an option. However, it should be noted, biopsy and histopathology are invasive, costly, and time-consuming procedures, although they are necessary for a clinical examination of the suspicious lesion.
Laser innovations drive the field of cancer studies forward. Laser systems provide new and promising ways of not only treating cancer in patients but to detect cancer cells early on and efficiently remove tumors. Recent developments in laser technology have been highly beneficial to cancer research. One of the ways in which scientific laser systems are applied is through the use of laser technology to detect specific cells.
A specifically-designed device based on the Raman fiber laser is used to differentiate between cancer cells and healthy cells. The distinguishing happens by measuring the way different cells reflect laser-based light. The elimination of all cancer cells is a critical part of cancer treatment due to major complications in the case of cancer cells still remaining after the surgery. However, the detection of malignant cells during surgery is challenging.
Cancer cells are hard to detect visually, therefore laser systems are highly useful since they allow to detect the difference in light reflection from healthy and cancer cells. The Raman fiber laser used in the device is highly accurate, which is desired in the field as the information obtained is used to remove tissue. The 90% accuracy of the device improves locating stray cancer cells during surgery by 10%.
Raman fiber lasers and fiber lasers, in general, could potentially be incorporated into other instruments. The accuracy of scientific laser systems may allow them to be used as specialized needles used for taking biopsies; the use of lasers in surgical robots is also promising.
Optromix is a fiber laser vendor, which develops and manufactures a broad variety of fiber lasers, СО₂ lasers, Ti: Sapphire lasers, dye lasers, and excimer lasers. We offer simple erbium laser and ytterbium laser products, as well as sophisticated laser systems with unique characteristics, based on the client’s inquiry.
We manufacture lasers using our own technologies based on the advanced research work and patents of international R&D team. Laser processes are high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility.
If you would like to buy Optromix scientific laser systems, please, contacts us at info@optromix.com
 
 

What the Future Prospects May Bring in Femtosecond Laser Applications

The femtosecond laser is an infrared laser (wavelength: 1,053 nm) with an ultrashort pulse duration (10-15 s). The early femtosecond laser systems operated with a low repetition rate (15 kHz) and thus required higher energy to operate. The new devices have an increased repetition rate (as high as 150 kHz), which leads to the utilization of less energy and shorter procedure duration. Also, the new devices vary in their programmed and customizable geometric cut patterns. Each laser system has distinctive features allowing it to be popularized for use in specific procedures.
Fiber lasers offer multiple advantages that are often crucial for certain applications and determine the popularity of fiber lasers. Fiber lasers offer an extraordinary surface-to-volume ratio. Fiber optic technology has been rapidly developing for the past 30 years, resulting in a significant progress in the field of fiber lasers. Lasers based on the fiber optic technology have been renovated into multimode- and single varieties with ultraviolet to far-infrared wavelengths that display high-power levels, adjustable repetition rate, and short pulse duration that is present in femtosecond fiber lasers.
Femtosecond fiber lasers, like other types of fiber lasers, offer lower cost of ownership, eco-friendly technology, high beam quality. These qualities make femtosecond fiber lasers highly desirable for multiple fields of application. The growing trend of green engineering through multiple industries has made these lasers a smart choice for marking and cutting applications. Fiber lasers are easy to automate and are energy proficient, which makes them a better substitute for traditional means of marking, such as ink based printing and chemical etching.
The femtosecond laser brings micron level accuracy, needle-free, blade-free surgery to the public and is the greatest breakthrough in cataract surgery in the last 25 years. This conclusion is justified by the fact that femtosecond lasers have the potential to carry out lens extraction or cataract surgery through a pin-prick incision and is far safer and superior to current cataract surgical techniques. Combined with computer controlled optical delivery systems, femtosecond lasers can produce precise surgical incisions without collateral damage to surrounding tissues.
Despite the successful and widespread use of the femtosecond laser in ophthalmic surgery, for many ophthalmologists and patient around the world, access to these costly lasers is a challenging limitation. A further logistical problem can take place if the laser system and operating room are not in close proximity. It is anticipated that this technology may become more accessible over time with increased surgical efficiency and improved patient outcomes.
A new report on the femtosecond fiber market outlines that the fiber laser market, in general, will continue to grow and expand while traditional techniques and instruments are being replaced by fiber laser systems.
Optromix Inc., headquartered in Cambridge, MA, USA, is a manufacturer of laser technologies, optical fiber sensors, and optical monitoring systems. We develop and manufacture a broad variety of fiber lasers, СО₂ lasers, Ti: Sapphire lasers, dye lasers, and excimer lasers. We offer simple erbium laser and ytterbium laser products, as well as sophisticated laser systems with unique characteristics, based on the client’s inquiry.
We manufacture lasers using our own technologies based on the advanced research work and patents of international R&D team. Laser processes are high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility.
If you are interested in Optromix femtosecond lasers, please contact us at info@optromix.com