Fiber laser is the future development direction for the high energy lasers. This paper describs two kinds of optical coatings for fiber laser, including long and short wave pass filters. The one characteristic of fibe...Fiber laser is the future development direction for the high energy lasers. This paper describs two kinds of optical coatings for fiber laser, including long and short wave pass filters. The one characteristic of fiber laser coatings lies in that coatings should separate two closely wavelength light including laser pump wavelength (980 nm) and laser irradiation wavelength(1 050～1 100 nm). At the same time, the coatings should have high laser damage threshold.展开更多
提出并验证了一种基于可调有源双耦合器环级联复合腔(Active dual-coupler ring based compound-cavity,ADCR-CC)滤波器的2μm波段单纵模(Single-longitudinal-mode,SLM)铥钬共掺光纤激光器。将具有可调滤波带宽和透射率的ADCR-CC滤波...提出并验证了一种基于可调有源双耦合器环级联复合腔(Active dual-coupler ring based compound-cavity,ADCR-CC)滤波器的2μm波段单纵模(Single-longitudinal-mode,SLM)铥钬共掺光纤激光器。将具有可调滤波带宽和透射率的ADCR-CC滤波器与光纤布拉格光栅(Fiber Bragg grating,FBG)结合,实现了SLM激光输出。当主腔和复合腔的泵浦功率分别为1.8 W和1.1 W时,测得的激光器输出波长为2048.510 nm,光信噪比高达83.08 dB,90 min内的最大光谱中心波长和光谱峰值功率波动分别为0.006 nm和0.19 dB,激光器输出功率为50.03 mW。使用等强度悬臂梁对FBG引入应变调节,SLM激光可在1.45 nm范围内实现波长的可调谐输出。展开更多
文摘Fiber laser is the future development direction for the high energy lasers. This paper describs two kinds of optical coatings for fiber laser, including long and short wave pass filters. The one characteristic of fiber laser coatings lies in that coatings should separate two closely wavelength light including laser pump wavelength (980 nm) and laser irradiation wavelength(1 050～1 100 nm). At the same time, the coatings should have high laser damage threshold.
