Journal
HIGH POWER LASER SCIENCE AND ENGINEERING
Volume 8, Issue -, Pages -Publisher
CHINESE LASER PRESS & CAMBRIDGE UNIV PRESS
DOI: 10.1017/hpl.2020.17
Keywords
optical frequency comb; all-polarization-maintaining; mode-locking; fiber laser
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Funding
- National Natural Science Foundation of China [11804096, 11874153, 11904105]
- National Key R&D Program of China [2018YFA0306301, 2017YFF0206000]
- Shanghai Sailing Program [18YF1407300]
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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 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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