Tunable Narrow Linewidth Erbium-Doped Fiber Ring Laser Based on Saturable Absorber and Self-Injection Feedback

被引：0
作者：
Xu, Fujun [1 ]
Wang, Xiaxiao [1 ]
Xu, Xiaobin [1 ]
Song, Ningfang [1 ]
机构：
[1] Beihang Univ, Sch Instrument Sci & Optoelect Engn, Beijing 100191, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2024年 / 16卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Erbium-doped fiber lasers; Optical fiber couplers; Optical fiber polarization; Fiber gratings; Optical reflection; Optical fiber communication; Laser modes; Erbium-doped fiber ring laser; saturable absorber; self-injection feedback; single-longitudinal mode; NOISE;
D O I：
10.1109/JPHOT.2024.3438839
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We demonstrate a tunable single-longitudinal-mode (SLM) narrow linewidth erbium-doped fiber (EDF) ring laser (EDFRL) in a cost-effective way. The laser incorporates an unpumped-EDF-based saturable absorber (SA) and a self-injection feedback loop for mode selection. The EDFDRL exhibits linear tunability of 12.57 pm/ C-degrees from 15 C-degrees to 45 C-degrees with a maximum tuning range of 0.3664 nm. At a pump current of 200 mA, we achieve a SLM EDFRL characterized by a high OSNR of 75 dB and an ultra-narrow linewidth of 330 Hz. Furthermore, it shows an excellent wavelength stability, with a maximum fluctuation of only 11.23 pm.
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页数：5
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