Acta Optica Sinica, Volume. 37, Issue 12, 1214003(2017)
Technology of Amplified Spontaneous Emission Suppression in High Gain Nd∶YAG Slab
The causation of the generation of strong amplified spontaneous emission (ASE) in the Nd∶YAG slab is analyzed, and the academic and experimental researches on suppressing ASE in high gain laser slab are developed. The pumping duty ratio is 8%, the peak pumping power is 21.38 kW and the injecting intensity of 1064 nm continuous detecting laser is 4 W/cm 2. The output power amplifying ratios of the detecting laser are 1.82 and 1.92 respectively with common evanescent coating and multilayer coating. The total stored energy in the slab increases by 4.6%. The experimental results show that ASE effect can be suppressed and the total stored energy in the laser slab can increase to a certain extent when special multilayer coating is coated on the top and bottom surfaces of the slab.
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Mi Li, Hongfei Jiao, Yingchen Wu, Hao Hu, Jun Lei, Wenqiang Lü, Tangjian Zhou, Jianmin Li, Liu Xu, Chun Tang, Na Zhao. Technology of Amplified Spontaneous Emission Suppression in High Gain Nd∶YAG Slab[J]. Acta Optica Sinica, 2017, 37(12): 1214003
Category: Lasers and Laser Optics
Received: Jun. 22, 2017
Accepted: --
Published Online: Sep. 6, 2018
The Author Email: Li Mi (limi@tsinghua.org.cn)