【摘要】 报道了高功率、高效率单模中红外2.8 mm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 mm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 mm,激光工作模式为单模,光束质量M2因子小于1.2。更多还原

【Abstract】 A high power and high efficiency mid- infrared at 2.8 mm 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 mm, respectively. The fiber laser is in single mode operation, with beam quality factor M2 of less than 1.2.更多还原