A 51 -dB signal-to-noise ratio carrier-envelope offset frequency in an environmentally stabilized polarization-maintaining optical frequency comb
Year: 2025
Type: article
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 a 195.65 MHz repetition rate at a pump power of 630 mW, and the frequency stability after phase-locking is 1.95 × 10 −12 with a 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 a 1-s averaging time.
Source: Chinese Physics B
Authors: Yuyao 玉瑶 Zong 宗, Yi 羿 Han 韩, Jiawei 佳伟 Liu 刘, Cheng 骋 Ci 慈, Zhenyu 振宇 Xue 薛, Shiying 士英 Cao 曹
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,500
OpenAlex ID: W4414357314