Single-shot dynamics of dual-comb generation in a wavelength-multiplexed fiber laser

Hetian Li; Guoqing Hu; Zhiyi Liu; Ying Qin; Junbiao Wang; Huawei Liu; Guangwei Chen; Xiaochun Liao; Ya Liu; Pengyu Yan; Huiyu Li; Zhiyong Zhang; Tengfei Wu; Zhehai Zhou

doi:10.1117/12.3036320

8 November 2024 Single-shot dynamics of dual-comb generation in a wavelength-multiplexed fiber laser

Hetian Li, Guoqing Hu, Zhiyi Liu, Ying Qin, Junbiao Wang, Huawei Liu, Guangwei Chen, Xiaochun Liao, Ya Liu, Pengyu Yan, Huiyu Li, Zhiyong Zhang, Tengfei Wu, Zhehai Zhou

Author Affiliations +

Proceedings Volume 13232, Advanced Lasers, High-Power Lasers, and Applications XV; 132320D (2024) https://doi.org/10.1117/12.3036320
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Abstract

We experimentally investigated the build-up dynamics of single-cavity dual-wavelength-comb pulses emitted from a ring fiber cavity with Lyot filter configuration. Dual-wavelength lasers are firstly observed by adjusting the polarization controller to control Lyot filter effect. When the pump powers of the bidirectional pumps are set as 57 mW and 49 mW respectively, dual-wavelength pulses with the center wavelengths of 1546.2 nm and 1563.6 nm and spectral bandwidths of 2 nm and 1.6 nm are obtained. Subsequently, time-stretched dispersive Fourier transform spectroscopy is adopted to monitor the build-up process of dual-wavelength pulses. When switching on the pump diode, the three-stage build-up process from background noise to stable dual-wavelength pulses is experimentally observed. The build-up time is at the level of hundreds of milliseconds. These results provide a deep understanding of single-cavity dual-wavelength-comb pulse generation and contribute to the design and control of the single-cavity dual-comb pulses.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Hetian Li, Guoqing Hu, Zhiyi Liu, Ying Qin, Junbiao Wang, Huawei Liu, Guangwei Chen, Xiaochun Liao, Ya Liu, Pengyu Yan, Huiyu Li, Zhiyong Zhang, Tengfei Wu, and Zhehai Zhou "Single-shot dynamics of dual-comb generation in a wavelength-multiplexed fiber laser", Proc. SPIE 13232, Advanced Lasers, High-Power Lasers, and Applications XV, 132320D (8 November 2024); https://doi.org/10.1117/12.3036320

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KEYWORDS

Fiber lasers

Optical filtering

Oscilloscopes

Polarization

Background noise

Design

Diodes

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