Single longitudinal mode polarization maintaining erbium-doped fiber laser with ultra-narrow linewidth

Siqiao Li; Jianming Shang; Zhengkang Wang; Yanfei Xu; Yaojun Qiao; Song Yu

doi:10.1117/12.2620286

8 July 2022 Single longitudinal mode polarization maintaining erbium-doped fiber laser with ultra-narrow linewidth

Siqiao Li, Jianming Shang, Zhengkang Wang, Yanfei Xu, Yaojun Qiao, Song Yu

Proceedings Volume 12280, 2021 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications; 122800G (2022) https://doi.org/10.1117/12.2620286
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

Abstract

A single longitudinal mode (SLM) polarization maintaining (PM) erbium-doped fiber laser (EDFL) with a crossed-double- ring passive subring resonator (CPSR) is put forward and experimentally investigated. The designed CPSR consists of two dual-coupler fiber rings, productively inhibiting large number of longitudinal modes oscillation and featuring narrow filtering bandwidth to achieve the SLM output. The configuration of all PM decreases the insertion losses of the polarization adjustment devices used in non-PM EDFL for the optimal SLM output. The experimental consequences illustrate that the linewidth of the put forward EDFL is approximately 278 Hz and the optical signal to noise ratio (OSNR) is about 70 dB, potential for the applications of requirements for narrow linewidth and high OSNR.

Citation Download Citation

Siqiao Li, Jianming Shang, Zhengkang Wang, Yanfei Xu, Yaojun Qiao, and Song Yu "Single longitudinal mode polarization maintaining erbium-doped fiber laser with ultra-narrow linewidth", Proc. SPIE 12280, 2021 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 122800G (8 July 2022); https://doi.org/10.1117/12.2620286

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KEYWORDS

Spatial light modulators

Polarization

Resonators

Fiber lasers

Fiber Bragg gratings

Mach-Zehnder interferometers

Optical filters

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