Main > High Power Laser Science and Engineering >  Volume 8 >  Issue 2 >  Page 02000e17 > Article
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• Received: Dec. 17, 2019

Accepted: Mar. 31, 2020

Posted: May. 9, 2020

Published Online: May. 9, 2020

The Author Email: Yang Liu (wxli@phy.ecnu.edu.cn), Wenxue Li (yliu@lps.ecnu.edu.cn)

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Zhiwei Zhu, Yang Liu, Daping Luo, Chenglin Gu, Lian Zhou, Gehui Xie, Zejiang Deng, Wenxue Li. Tunable optical frequency comb from a compact and robust Er:fiber laser[J]. High Power Laser Science and Engineering, 2020, 8(2): 02000e17

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## Abstract

We report on a compact and robust self-referenced optical frequency comb with a tunable repetition rate, generated by an all-polarization-maintaining (PM) mode-locked Er-doped fiber laser. The spacing between comb teeth can be tuned above 300 kHz at a repetition rate of 101 MHz. The repetition rate and the carrier–envelope offset of the laser are stabilized separately, and the relative residual phase noises are determined to be $336~\unicode[STIX]{x03BC}\text{rad}$ and 713 mrad (1 Hz–1 MHz). The accurate frequency characteristics and the stable structure show great potential for the use of such a comb in applications of precision measurements.

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