High Q Brillouin fiber lasers with Hz level linewidths

Jacob Lampen; Peng Li; Jie Jiang; Martin E. Fermann

doi:10.1117/12.3002977

13 March 2024 High Q Brillouin fiber lasers with Hz level linewidths

Jacob Lampen, Peng Li, Jie Jiang, Martin E. Fermann

Proceedings Volume PC12865, Fiber Lasers XXI: Technology and Systems; PC1286504 (2024) https://doi.org/10.1117/12.3002977
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

We demonstrate a tunable dual polarization Brillouin fiber laser with a Q-factor of 2.4 billion with an intrinsic relative linewidth of approximately 1 Hz, establishing the potential of such systems for fiber based compact frequency references for precision metrology applications. Mode hops are avoided by implementation of self-injection locking, which also obviates the need for electronic locking of the pump laser frequency to the 100 m length fiber laser cavity. The mode hop free tuning range of an individual laser can be as large a 300 MHz with an integrated linewidth of 20 Hz.

Conference Presentation

Citation Download Citation

Jacob Lampen, Peng Li, Jie Jiang, and Martin E. Fermann "High Q Brillouin fiber lasers with Hz level linewidths", Proc. SPIE PC12865, Fiber Lasers XXI: Technology and Systems, PC1286504 (13 March 2024); https://doi.org/10.1117/12.3002977

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