IMRA frequency combs and RF signal generation systems

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Since unveiling the first fiber laser frequency comb in 2002, IMRA has continuously improved frequency comb technology, repeatedly introducing innovative comb concepts and pushing the performance envelope. IMRA offers the Ecomb product line centered around its robust and reliable erbium fiber lasers, first introduced in 1995, as well as high performance and user friendly locking electronics.

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IMRA comb systems are available in rack-mounted and table-top versions aimed at saving lab space and providing maximum flexibility.  All control and actuator electronics are integrated in the comb enclosure rather than multiple control boxes which provides a simple set-up even for the most complex and demanding experiments. IMRA also offers support electronics that includes a compact, multi-channel, high voltage amplifier.

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​A comb-based RF signal generation system leverages the ultra-stable, evenly spaced spectral lines of an optical frequency comb to produce low-noise, highly stable microwave and radio frequency signals. In this approach, the optical comb—such as those developed by IMRA America, a pioneer in femtosecond fiber laser technology—is first stabilized to an optical reference. By detecting the optical pulses or by heterodyning two comb lines on a fast photodetector, the optical frequency spacing is directly converted into an RF signal. This enables the generation of signals with exceptional phase noise performance and frequency stability, often surpassing that of traditional electronic oscillators. Such systems are increasingly important for applications in next-generation communications, precision timing, radar, and quantum technologies.