Celius ­SF-­5xx series

Single­ frequency CW 515 nm (546 nm) fiber laser

Key Features:

  • Single-frequency
  • Ultra-narrow linewidth (< 200 kHz)
  • Superior beam quality (M2<1.05)Thermal wavelength tuning (0.25 nm)
  • Fast piezo tuning (20 pm)
  • Additional output for the wavelength monitoring
  • Long coherence length
  • TEM00 mode
Parameter Celius-SF-515 Celius-SF-546
Central wavelength 515 nm 546 nm
Linewidth < 200 kHz
Beam quality (M2) ≤ 1.05
Nominal output power 100mW, 200mW,500mW ,1W,2W,3W
Power stability < ± 1 %
RIN noise ( RIN peak - app. 0.3 MHz) RIN level - <-120 @ peak
Polarization Linear or random
Fast piezo tuning built-in
Piezo tuning range 20 pm
Piezoelectric Modulation Frequency up to 10 kHz
Wavelength thermal tuning range 250 pm


  • Atomic trapping and cooling
  • Spectroscopy
  • Holography
  • Two-photon standard
  • High resolution microscopy
  • Atomic lithography
  • Interferometry
  • Others

Celius-SF-515 is a single-frequency ultra-narrow linewidth long coherence length low noise 515 nm (546 available, 515 - 561 nm optional) fiber laser based on a proprietary technology for an intra-cavity doubling of the unpolarised Yb-doped fiber laser with linearly polarized output (patent pending). Cellius-SF-515 key parameter is an ultra-narrow linewidth (< 200 kHz) based on the longitudinal single mode. Celius comes with a piezoelectric tuning with external or built-in (optional) wavelength modulation at kHz bandwidth for locking purposes. Cellius is controlled by the onboard digital display, switches, and adjustment controllers. The control interface software provides optionally.This is a perfect tool for research labs due to excellent performance, high reliability, and lower cost.

Specific characteristics:

Single Frequency CW 515 nm fiber laser Celius-SF-515, FWHM <200 kHz, Nominal output power 100,200,500 mW, 1,2,3 W Detailed Characteristics Ask for quotation
Single Frequency CW 546 nm fiber laser Celius-SF-546, FWHM <200 kHz, Nominal output power 100,200,500 mW, 1,2,3 W Detailed Characteristics Ask for quotation

Optromix manufactures laser systems of outstanding quality and reliability. We are always happy to configure your laser according to your unique needs

If you would like to buy Optromix single-frequency CW 515 (546 nm) fiber laser Celius-SF-5xx, please Contacts at: or +1 617 558 98 58