A stabilized optical frequency comb based on an Er-doped fiber femtosecond laser

Chuanqing Xia; Tengfei Wu; Chunbo Zhao; Shuai Xing

doi:10.1117/12.2317514

5 March 2018 A stabilized optical frequency comb based on an Er-doped fiber femtosecond laser

Chuanqing Xia, Tengfei Wu, Chunbo Zhao, Shuai Xing

Proceedings Volume 10710, Young Scientists Forum 2017; 107103M (2018) https://doi.org/10.1117/12.2317514
Event: Young Scientists Forum 2017, 2017, Shanghai, China

Abstract

An optical frequency comb based on a 250 MHz home-made Er-doped fiber femtosecond laser is presented in this paper. The Er-doped fiber laser has a ring cavity and operates mode-locked in femtosecond regime with the technique of nonlinear polarization rotation. The pulse duration is 118 fs and the spectral width is 30 nm. A part of the femtosecond laser is amplified in Er-doped fiber amplifier before propagating through a piece of highly nonlinear fiber for expanding the spectrum. The carrier-envelope offset frequency of the comb which has a signal-to-noise ratio more than 35 dB is extracted by means of f-2f beating. It demonstrates that both carrier-envelope offset frequency and repetition frequency keep phase locked to a Rubidium atomic clock simultaneously for 2 hours. The frequency stabilized fiber combs will be increasingly applied in optical metrology, attosecond pulse generation, and absolute distance measurement.

Citation Download Citation

Chuanqing Xia, Tengfei Wu, Chunbo Zhao, and Shuai Xing "A stabilized optical frequency comb based on an Er-doped fiber femtosecond laser", Proc. SPIE 10710, Young Scientists Forum 2017, 107103M (5 March 2018); https://doi.org/10.1117/12.2317514

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