51 dB Signal-to-Noise Ratio Carrier-Envelope Offset Frequency in an Environmentally Stabilized Polarization-Maintaining Optical Frequency Comb
Abstract A femtosecond optical frequency comb (OFC) based on a laser with a nonlinear amplification loop mirror mode-locking mechanism is proposed. The laser adopts a fully polarization-maintaining (PM) structure, which can realize self-starting mode-locking at the center wavelength of 1560.2 nm with 195.65 MHz repetition rate at the pump power of 630 mW, and the frequency stability after phase-locking is 1.95×10 -12 with 1 s averaging time. Through a homemade f -2 f interferometer, the detected free-running f ceo signal exhibits a signal-to-noise ratio (SNR) as high as 51 dB. After phase-locking, f ceo has a frequency stability of 1.17×10 -11 with 1 s averaging time.
Authors
- Jia Wei Liu (ORCID: https://orcid.org/0000-0001-6586-0026)
- Yue Zong (ORCID: https://orcid.org/0000-0003-2700-9745)
- Ci Cheng
- Shiying Cao (ORCID: https://orcid.org/0000-0003-1790-3209)
- Yi Han
- Zhenyu Xue
Institutions
- National Institute of Metrology (CN)
- China Jiliang University (CN)
Publication Details
- Journal
- Chinese Physics B
- Published
- 2025-09-19
- DOI
- https://doi.org/10.1088/1674-1056/ae0924
- Primary Topic
- Advanced Fiber Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00