All-fiber narrow-linewidth ring laser with continuous and large tuning range based on microsphere resonator and fiber Bragg grating

Ligang Huang, Pengfa Chang, Xiaoting Li, Wending Zhang, Yujia Li, Feng Gao, Fang Bo, Lei Gao, Wei Huang, Min Liu, Tao Zhu

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17 引用 (Scopus)

摘要

We demonstrate an all-fiber single-longitudinal-mode (SLM) narrow-linewidth ring laser stabilized by a microsphere resonator and fiber Bragg gratings (FBGs) with a large continuous wavelength tuning range from 1540 nm to 1570 nm. In the experiment, stable lasing with a linewidth smaller than 5 kHz was obtained. The laser wavelength was linearly and continuously tuned in the range of 0.15 nm by increasing the pump power and discretely tuning with a step of 0.1 nm by stress-controlled FBGs. The tuning range of the proposed laser configuration was determined by the FBG, and the SLM state was ensured by the coupling between the few-mode tapered fiber and the microsphere, which was simpler in alignment than other ring lasers utilizing microresonators.

源语言英语
页(从-至)32652-32661
页数10
期刊Optics Express
26
25
DOI
出版状态已出版 - 10 12月 2018

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