Koheras BASIK MIKRO compact low noise single-frequency OEM lasers

The Koheras BASIK MIKRO is the smallest industrial single frequency fiber laser on the market and it is designed for OEM integration in industrial sensing systems. The module includes fully integrated laser control electronics, as well as continuous monitoring of the laser performance. Based on a truly single mode DFB fiber laser architecture, they offer ultra stable performance free of mode-hops.

The module is available in two different laser versions, C15 and E15. The standard wavelength is 1550 nm and the MIKRO is avilable with output wavelength anywhere in the 1535 to 1580 nm range. Moreover, the laser offers a wide thermal wavelength tuning range and can be combined with fast wavelength modulation e.g. for external stabilization. The lasers are available with PM (Polarisation Maintaining) or non-PM output.

For easy control, the MIKRO is available with an optional USB interface kit and can be controlled via NKTP CONTROL graphical user interface.

  • ­ Compact OEM footprint
  • ­ Low phase noise and narrow linewidth
  • ­ Robust single frequency operation
  • ­ High wavelength stability
  • ­ PM and fast frequency tuning option
  • ­ Ideal for OEM integration in Sensing

Laser Models

Model Standard Wavelength Other wavelengths Output power PM Fast modulation
C15 1550.12 nm 1535 - 1580 nm >10 mW* Optional Optional
E15 1550.12 nm 1535 - 1580 nm 40 mW Optional Optional



E15 C15
Laser emission CW - inherently single frequency
Beam quality [M²] < 1.05 < 1.05
Linewidth [kHz] 1 < 0.1 < 15
Max phase noise


Max phase-noise [µrad/√Hz/m] 32@10Hz
RIN peak [MHz] app. 0.7 app. 1
RIN level @ peak / 10 MHz [dBc/Hz] <-100 / <-135 <-120 / <-140
Optical S/N (50 pm res.) [dB] > 50 (typ. > 55) > 65 (typ > 70)
Min thermal wavelength tuning range [pm] 2 +/- 350 +/- 350
Total thermal tuning range [pm] 1000 1000
Fast wavelength modulation range [GHz] > 8
Fast wavelength modulation [kHz] Up to 20
PM output - PER [dB] > 23

Mechanical / Electrical/Environmental

Power supply requirements [VDC] 12
Power consumption [W] Typical 4, max 12
Communication interface RS-485
Optical output FC/APC (0.5 m pigtail)
Dimensions (HxWxD) [mm] 20x70x150
Weight [kg] 0.35
Operating temperature range [°C] 10 - 60 (module case temperature)
Humidity non condensing [%RH] 0-70


BASIK MIKRO technical drawing