Chinese Journal of Lasers, Volume. 47, Issue 1, 0115001(2020)
All Polarization-Maintaining Erbium-Doped Fiber Based Optical Comb
An all polarization-maintaining fiber laser is established based on a nonlinear amplifying loop mirror, and thus a stable optical oscillator source is applied to an optical comb system which works outdoors. In this experiment, supercontinuum covering from 1000 nm to 2300 nm is produced by using two-level optical preamplification and high nonlinear fibers. The optimal signal-to-noise ratio of carrier-envelope offset frequency f0 detected by the collinear f-2f interferometer is 35 dB. Furthermore, the relationship between the net cavity dispersion and the linewidth of f0 is investigated. The narrowest linewidth of f0 in the free-running mode is narrowed to 5 kHz. Finally, the repetition rate fr and f0 are both phase-locked to a rubidium atomic clock. The standard deviations for fr and f0 are 780 μHz and 308 mHz, respectively. The fiber optic comb system guarantees compact size and excellent integration level.
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Pengpeng Yan, Hang Gong, Fei Ye, Chaoliang Cheng, Qingting Wang, Shiyu Lu, fei Chen, Tianye Wang, Tingting Liu, Zhengru Guo, Xuling Shen, Kangwen Yang, Qiang Hao, Heping Zeng. All Polarization-Maintaining Erbium-Doped Fiber Based Optical Comb[J]. Chinese Journal of Lasers, 2020, 47(1): 0115001
Category: rapid communications
Received: Nov. 11, 2019
Accepted: Dec. 11, 2019
Published Online: Jan. 9, 2020
The Author Email: Qiang Hao (qianghao@usst.edu.cn)