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. Designed for OEM integration in industrial sensing systems, it features unrivaled reliability and a robust design. 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, it offers ultra stable performance free of mode-hops.

The standard wavelength is 1550 nm and the MIKRO is available 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 our 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


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Laser Models

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

*) Fixed output power (non adjustable)


Laser emission CW - inherently single frequency
Beam quality [M²] < 1.05
Linewidth [kHz] * < 0.1
Max phase noise [dB((Rad/√Hz)/m)] -90@10 Hz
-110@100 Hz
-130@20 kHz
Max phase-noise [(µrad/√Hz)/m] 32@10 Hz
3.2@100 Hz
0.3@20 kHz
RIN peak [MHz] app. 0.7
RIN level @ peak / 10 MHz [dBc/Hz] <-100 / <-135
Optical S/N (50 pm res.) [dB] > 50 (typ. > 55)
Min thermal wavelength tuning range [pm] ** +/- 150
Total thermal tuning range [pm] 450
Fast wavelength modulation range [GHz] > 8
Fast wavelength modulation [kHz] Up to 20
PM output - PER [dB] > 23

* 120 µs integration time.
** At room temperature. If the laser is operated in very cold or hot environments, this wavelength range is truncated on either the upper or lower side

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, module temperature [°C] 10 - 60
Humidity non condensing [%RH] 0-70


BASIK MIKRO mechanical drawing