Paper
1 November 2021 Detection of carrier-envelope offset frequency of a figure-of-9 erbium-doped fiber laser
Author Affiliations +
Proceedings Volume 12057, Twelfth International Conference on Information Optics and Photonics; 1205743 (2021) https://doi.org/10.1117/12.2606810
Event: Twelfth International Conference on Information Optics and Photonics, 2021, Xi'an, China
Abstract
We demonstrate the optical part of the optical frequency comb based on a figure-of-9 erbium-doped fiber laser. In this experiment, we embedded an integrated nonreciprocal phase shifter in an all-polarization-maintain fiber oscillator, in order to reduce the mode locking threshold and facilitate self-starting. The repetition rate/ 3 dB spectral bandwidth/ pulse width of the output pulse is 46 MHz/ 15.8 nm/ 527.73 fs, respectively. The pulse trains are injected into the high nonlinear fiber after a two-stage erbium-doped fiber amplifier and a piece of single-mode fiber for compressing the pulse width, then an octave-spanning supercontinuum can be obtained. Finally, the signal of the carrier-envelope offset frequency(fceo) with a signal-to-noise ratio of 35 dB is detected by using a collinear self-referenced f-2f interferometer. Constructing a compact system structure with high signal-to-noise ratio fceo signal is critical for long-term stability of optical frequency combs. Our study has laid a foundation for future development of combs applied in space.
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jiali Yao, Chunbo Zhao, Huibo Wang, Zhuoyue Tuo, and Yansong Meng "Detection of carrier-envelope offset frequency of a figure-of-9 erbium-doped fiber laser", Proc. SPIE 12057, Twelfth International Conference on Information Optics and Photonics, 1205743 (1 November 2021); https://doi.org/10.1117/12.2606810
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KEYWORDS
Fiber lasers

Frequency combs

Oscillators

Mode locking

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