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1 April 2022 All-fiber frequency-agile triple-frequency comb light source
Etienne Genier, Eve-Line Bancel, Rosa Santagata, Alexandre Kudlinski, Matteo Conforti, Géraud Bouwmans, Olivier Vanvincq, Andy Cassez, Arnaud Mussot
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Proceedings Volume PC11985, Nonlinear Frequency Generation and Conversion: Materials and Devices XXI; PC119850G (2022) https://doi.org/10.1117/12.2614981
Event: SPIE LASE, 2022, San Francisco, California, United States
Abstract
We experimentally demonstrate a novel approach to generate a multi-frequency comb light source with a high mutual coherence in an all-fiber system. Starting from EOM combs, we exploit spatial light multiplexing in a 3-core all-normal nonlinear silica fiber at 1550 nm. Each pulse propagates in its own core to experience a nonlinear broadening but within the same fiber. We obtained 3 almost similar output flat-top spectra spanning over 14 nm with 3 nJ per pulse at 250 MHz and a flat phase noise spectrum down to -125 dBc/Hz. The signal-to-noise ratio of interferograms is about 40 dB.
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Etienne Genier, Eve-Line Bancel, Rosa Santagata, Alexandre Kudlinski, Matteo Conforti, Géraud Bouwmans, Olivier Vanvincq, Andy Cassez, and Arnaud Mussot "All-fiber frequency-agile triple-frequency comb light source", Proc. SPIE PC11985, Nonlinear Frequency Generation and Conversion: Materials and Devices XXI, PC119850G (1 April 2022); https://doi.org/10.1117/12.2614981
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KEYWORDS
Light sources
Optical fibers
Signal to noise ratio
Fiber lasers
Frequency combs
Mode locking
Multiplexing
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