Optical frequency comb generation using femtosecond fiber laser and two types of optical fibers

T. Uehara; K. Tsuji

doi:10.1117/12.2501755

7 March 2019 Optical frequency comb generation using femtosecond fiber laser and two types of optical fibers

T. Uehara, K. Tsuji

Proceedings Volume 10897, Fiber Lasers XVI: Technology and Systems; 1089726 (2019) https://doi.org/10.1117/12.2501755
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

We pursue locking of optical frequency comb for absolute frequency measurement. For the purpose, the characteristics of frequency comb are measured. At first, the characteristics in the fs pulse laser are measured by an autocorrelation technique. Second, the frequency stability of the reputation rate of an optical frequency comb based on a mode-locked fiber laser is measured. The repetition frequency is locked to a frequency generated from a synthesizer, which is referred to a Rubidium frequency standard. The stability was 3 Hz at averaging time of 1 s under locking. The best stability was better than 0.3 mHz at averaging time of 100 s. Finally, the wavelength spectrum of the pulse laser is broadened using self-phase modulation in highly nonlinear fibers. The spectrum bandwidth was broadened to 824 nm.

Citation Download Citation

T. Uehara and K. Tsuji "Optical frequency comb generation using femtosecond fiber laser and two types of optical fibers", Proc. SPIE 10897, Fiber Lasers XVI: Technology and Systems, 1089726 (7 March 2019); https://doi.org/10.1117/12.2501755

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