Tunable optical frequency comb from a compact and robust Er:fiber laser.
- Resource Type
- Article
- Authors
- Zhu, Zhiwei; Liu, Yang; Luo, Daping; Gu, Chenglin; Zhou, Lian; Xie, Gehui; Deng, Zejiang; Li, Wenxue
- Source
- High Power Laser Science & Engineering. 2020, Vol. 8, p1-6. 6p.
- Subject
- *OPTICAL frequency conversion
*MODE-locked lasers
*FIBER lasers
*DIASTEMA (Teeth)
*PHASE noise
*LASERS
*COMPACTING
- Language
- ISSN
- 2095-4719
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. [ABSTRACT FROM AUTHOR]