期刊
APPLIED OPTICS
卷 56, 期 12, 页码 3583-3588出版社
OPTICAL SOC AMER
DOI: 10.1364/AO.56.003583
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资金
- National Natural Science Foundation of China (NSFC) [61605107, 61505244]
- Young Eastern Scholar Program at Shanghai Institutions of Higher Learning [QD2015027]
- Young 1000 Talent Plan Program of China
Nanosecond passive Q-switching generation from an all-fiber erbium-doped laser with a UV inscribed 45 degrees tilted fiber grating (TFG) is systematically demonstrated. The 45 degrees TFG is employed as a polarizer together with two polarization controllers (PCs) to realize nonlinear polarization rotation (NPR). Because of the NPR effect, stable Q-switched pulses with an average output power of 17.5 mW, a single pulse energy of 72.7 nJ, a repetition rate of 241 kHz, a pulse width of 466 ns, and a signal to noise ratio (SNR) of 58.8 dB are obtained with 600 mW pump power. To the best of our knowledge, the SNR is the highest among all-fiber passively Q-switched erbium-doped laser. The stability of this erbium-doped fiber laser (EDFL) is also examined by monitoring the laser consecutively for 5 h under laboratory conditions. (C) 2017 Optical Society of America
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