Stability of single-cavity dual-wavelength-comb fiber laser with significant difference of pulse characteristics

Guoqing Hu; Luoyang Chen; Hetian Li; Guangwei Chen; Xiaochun Liao; Pengyu Yan; Huiyu Li; Zhiyong Zhang; Tengfei Wu; Ying Qin; Zhehai Zhou

doi:10.1117/12.3035783

22 November 2024 Stability of single-cavity dual-wavelength-comb fiber laser with significant difference of pulse characteristics

Guoqing Hu, Luoyang Chen, Hetian Li, Guangwei Chen, Xiaochun Liao, Pengyu Yan, Huiyu Li, Zhiyong Zhang, Tengfei Wu, Ying Qin, Zhehai Zhou

Author Affiliations +

Proceedings Volume 13246, Quantum and Nonlinear Optics XI; 1324609 (2024) https://doi.org/10.1117/12.3035783
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Abstract

We investigated a stable single-cavity dual-wavelength-comb fiber laser with significant difference of pulse characteristics. Switchable single/dual-wavelength pulses across 1530- and 1550-nm gain regions are obtained by adjusting the intracavity linear loss. In the dual-wavelength operation, the repetition rates fluctuate and drift in more than 145 Hz, while the standard deviation of the repetition rate difference is measured as 64 mHz in 1000-second monitoring. The passive mutual coherence between pulses is comparable or somewhat better than the reported one under the similar disturbance and monitoring condition. Meanwhile, the significant difference of dual-wavelength pulse characteristics, including spectral bandwidth, pulse energy and dispersion is observed and discussed. The qualified stability is also attributed to the significant pulse difference, which could suppress the nonlinear pulse interaction induced instability. These results provide further physical understanding of the construction of dual-wavelength-comb pulse fiber laser, showing the high potential to promote the performance improvement of dual-comb metrology such as dual-comb spectroscopy, and ranging.

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

Citation Download Citation

Guoqing Hu, Luoyang Chen, Hetian Li, Guangwei Chen, Xiaochun Liao, Pengyu Yan, Huiyu Li, Zhiyong Zhang, Tengfei Wu, Ying Qin, and Zhehai Zhou "Stability of single-cavity dual-wavelength-comb fiber laser with significant difference of pulse characteristics", Proc. SPIE 13246, Quantum and Nonlinear Optics XI, 1324609 (22 November 2024); https://doi.org/10.1117/12.3035783

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KEYWORDS

Fiber lasers

Metrology

Dispersion

Polarization

Single mode fibers

Single walled carbon nanotubes

Spectroscopy

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