材料科学
光学
激光线宽
光纤激光器
相对强度噪声
激光器
光子晶体光纤
波长
光电子学
宽带
边坡效率
色散位移光纤
光纤
半导体激光器理论
光纤传感器
物理
作者
Ying Wan,Jianxiang Wen,Chen Jiang,Fengzai Tang,Taximaiti Yusufu,Fufei Pang,Aierken Sidike,Tingyun Wang
出处
期刊:Optics Express
[The Optical Society]
日期:2022-05-12
卷期号:30 (11): 18692-18692
被引量:3
摘要
An over 75 nm broadband spectrum with a gain per unit length of >2 dB/cm was obtained from a homemade Yb: YAG crystal-derived silica fiber (YCDSF) with Yb-doping concertation of 6.57 wt.%. Using a 13-cm-long YCDSF, a low-noise wavelength-tunable single-frequency fiber laser has been constructed, enabling a single longitudinal mode oscillation from 1009 to 1070 nm. In particular, in the 1023-1056 nm waveband, the laser operating at any wavelength exhibited a maximum output power over 37 mW with power fluctuations below 0.38%, a slope efficiency >8%, and an optical signal-to-noise ratio higher than 60 dB. A linewidth of less than 2.8 kHz was also observed at the maximum pump powers, and relative intensity noise was as low as -155 dB/Hz at frequencies above 1.0 MHz. These results indicate that the YCDSFs with broadband high-gain characteristics are promising for wavelength-tunable fiber lasers in applications such as optical coherence tomography, precision metrology, nonlinear frequency conversion, and so on.
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