材料科学
光学
光纤激光器
光子晶体光纤
纤维
光纤
激光器
光电子学
波长
复合材料
物理
作者
Zhenshuai Wei,Lu Huang,Haiyan Li,Xian Zhao,Zhigang Zhao,Zhenhua Cong,Zhaojun Liu
出处
期刊:Optics Express
[The Optical Society]
日期:2024-04-10
卷期号:32 (9): 15370-15370
摘要
A single-frequency distributed Bragg Reflector (DBR) fiber laser operating at 1091 nm was demonstrated by using a Yb:YAG crystal-derived silica fiber (YDSF). The YDSF was prepared via the molten core (MC) method, with a Yb 2 O 3 doping concentration of 5.60 wt.% in the core, resulting in a gain coefficient of 1.45 dB/cm at 1091 nm. Employing 0.8 cm of the YDSF, we attained a single-frequency laser with a maximum output power of 145 mW and a slope efficiency of 31.8%. The laser exhibited an optical signal-to-noise ratio (OSNR) exceeding 71 dB, a linewidth of ∼34 kHz, and a stabilized relative intensity noise (RIN) at -132 dB/Hz for frequencies over 4.5 MHz. The fiber laser could serve as an outstanding seed source for high-power, narrow-linewidth fiber amplifiers operating at 1091 nm.
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