Ultra-Narrow Linewidth Single Longitudinal Mode Erbium-Doped Fiber Laser with Four-Ring Passive Subring Resonator

2022 Asia Communications and Photonics Conference (ACP)（2022）

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摘要

We investigated a single longitudinal mode erbium-doped fiber laser based on a high-quality four-ring passive subring resonator. An ultra-narrow linewidth of 229.5 Hz and a high OSNR of 71 dB were achieved.

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ultra-narrow linewidth,single longitudinal mode,four-ring passive subring resonator

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