中国激光, 2015, 42 (5): 0502008, 网络出版: 2015-04-28
10 W 级高效率单模中红外2.8 μm光纤激光器 
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10 W-Level High Efficiency Single-Mode Mid-Infrared 2.8 μm Fiber Laser
摘要
报道了高功率、高效率单模中红外2.8 μm 波段光纤激光器。采用中心波长为975 nm 的半导体激光器(LD)抽运高掺铒氟化物双包层光纤Er∶ZBLAN，室温下实现了2.8 μm激光功率超过9 W中红外光纤激光连续输出。激光器最大输出功率为9.2 W，斜率效率为24.8%，工作阈值约为1.0 W，中心波长为2.79 μm，激光工作模式为单模，光束质量M2因子小于1.2。
Abstract
A high power and high efficiency mid-infrared at 2.8 μm single mode fiber laser is demonstrated. Output power of exceeding 9 W from heavily Er3 +-doped ZBLAN double-clad fiber pumped by a laser-diode (LD) centered at 975 nm is obtained in continuous wave regime. The experimental results indicate that the maximum output power of the fiber laser is 9.2 W corresponding to the slope efficiency of 24.8%. Moreover, the threshold and the center wavelength are around 1.0 W and 2.79 μm, respectively. The fiber laser is in single mode operation, with beam quality factor M2 of less than 1.2.
沈炎龙, 黄珂, 周松青, 栾昆鹏, 朱峰, 谌鸿伟, 于力, 易爱平, 冯国斌, 叶锡生. 10 W 级高效率单模中红外2.8 μm光纤激光器[J]. 中国激光, 2015, 42(5): 0502008. Shen Yanlong, Huang Ke, Zhou Songqing, Luan Kunpeng, Zhu Feng, Chen Hongwei, Yu Li, Yi Aiping, Feng Guobin, Ye Xisheng. 10 W-Level High Efficiency Single-Mode Mid-Infrared 2.8 μm Fiber Laser[J]. Chinese Journal of Lasers, 2015, 42(5): 0502008.
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