Frequency combs

A stable pump laser is key whether you need a frequency comb for atomic clocks, metrology, radars, high-precision spectroscopy, or GPS. Micro resonator-based frequency combs transfer the laser characteristics from the pump laser to its comb teeth. Any power fluctuations in the pump laser will be amplified in the nonlinear process that creates the comb.

Get the most stable frequency combs in the market with Koheras BASIK

The power stability and noise characteristics of the pump laser dictate the performance of the frequency comb. Our Koheras BASIK fiber lasers are mode-hop-free and combine low-noise with an ultra-stable all-fiber platform and a decade-long lifetime.

Have a quick look at the noise specification to see if the BASIK would work for you:

BASIK X15 E15 C15
Linewidth < 0.1 kHz < 0.1 kHz < 15 kHz
Max. phase noise -105 dB((Rad/√Hz)/m)@1Hz
-125 dB((Rad/√Hz)/m)@10Hz
-130 dB((Rad/√Hz)/m)@100Hz
-128 dB((Rad/√Hz)/m)@1kHz
-90 dB((Rad/√Hz)/m)@10Hz
-110 dB((Rad/√Hz)/m)@100Hz
-130 dB((Rad/√Hz)/m)@20kHz
-69 dB((Rad/√Hz)/m)@10Hz
-89 dB((Rad/√Hz)/m)@100Hz
-109 dB((Rad/√Hz)/m)@20kHz
Max. phase noise 3.1 (µrad/√Hz)/m@1Hz
0.6 (µrad/√Hz)/m@10Hz
0.3 (µrad/√Hz)/m@100Hz
0.4 (µrad/√Hz)/m@1kHz
32 (µrad/√Hz)/m@10Hz
3.2 (µrad/√Hz)/m@100Hz
0.3 (µrad/√Hz)/m@20kHz
355 (µrad/√Hz)/m@10Hz
36 (µrad/√Hz)/m@100Hz
3.5 (µrad/√Hz)/m@20kHz
RIN peak Appr. 0.7 MHz Appr. 0.7 MHz Appr. 1 MHz
RIN level @ peak/10 MHz  <-100 / <-135 dBc/Hz <-100 / <-135 dBc/Hz <-120 / <-140 dBc/Hz

See all the Koheras BASIK X15, E15, and C15 specifications on the product page.

This laser is robust enough for oil rigs yet sophisticated enough for the lab

Our fiber laser design is inherently compact and robust. It is developed for a lifetime of above 10 years in demanding environments where uptime is critical. With failure rates lower than 1%, we proudly deliver the most reliable low-noise lasers on the market. Alignment-free and maintenance-free.

The industrial-grade OEM lasers have a rugged design, a stable performance unaffected by changing environmental conditions, and wide temperature ranges in the field as well as the lab. We deliver lasers to the most advanced laboratories worldwide such as The Laboratory of Photonics and Quantum Measurements at EPFL and the Quantum Optics and Photonics lab at the Niels Bohr Institute.

We have more than 15,000 Koheras lasers deployed in the harshest environments on – and off – the planet. We have lasers on oil rigs, submarines, wind turbines, and even in space. With over 20 years of experience, we know they last. Also in your lab.

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We are part of the European Quantum Flagship