Technology of Amplified Spontaneous Emission Suppression in High Gain Nd∶YAG Slab

Mi Li; Hongfei Jiao; Yingchen Wu; Hao Hu; Jun Lei; Wenqiang Lü; Tangjian Zhou; Jianmin Li; Liu Xu; Chun Tang; Na Zhao

doi:10.3788/AOS201737.1214003

Acta Optica Sinica, Volume. 37, Issue 12, 1214003(2017)

Technology of Amplified Spontaneous Emission Suppression in High Gain Nd∶YAG Slab

Mi Li^1,2,3、*, Hongfei Jiao⁴, Yingchen Wu^1,2, Hao Hu^1,2, Jun Lei^1,2, Wenqiang Lü^1,2, Tangjian Zhou^1,2, Jianmin Li^1,2, Liu Xu^1,2, Chun Tang^1,2, and Na Zhao^1,2

Author Affiliations

¹ Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang, Sichuan 621999, China

² Key Laboratory of Science and Technology on High Energy Laser, China Academy of Engineering Physics, Mianyang, Sichuan 621999, China

³ Graduate School of China Academy of Engineering Physics, Beijing 100088, China

⁴ School of Physics Science and Engineering, Tongji University, Shanghai 200092, China

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Figures & Tables(7)

Fig. 1. Absorption efficiency of multi-layer film for 1064 nm fluorescence

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Fig. 2. Transmission path of laser beam in slab

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Fig. 3. Equivalent absorption coefficient and absorption efficiency at different central wavelengths

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Fig. 4. Curve of small signal gain coefficient versus time

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Fig. 5. Amplifying ratio of detecting laser under different peak pumping powers

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Table 1. Angle of incidence with different periods
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Table 1. Angle of incidence with different periods
N 12 13 14 15 16 17 18 19 20
θ /(°) 45.0 41.2 37.7 34.3 31.2 28.2 25.4 22.7 20.1
γ /(°) 22.9 21.2 19.6 18.1 16.6 15.1 13.6 12.2 10.9
β /(°) 67.9 66.2 64.6 63.1 61.6 60.1 58.6 57.2 55.9

Table 2. Central wavelength with different peak pumping powers

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Table 2. Central wavelength with different peak pumping powers

Peak pumping power /W	Central wavelength /nm	Peak pumping power /W	Central wavelength /nm	Peak pumping power /W	Central wavelength /nm
367	803.10	7790	803.73	15343	804.36
1571	803.21	9036	803.84	16500	804.47
2736	803.31	10325	803.94	17777	804.57
4060	803.42	11524	804.05	18988	804.68
5234	803.52	12845	804.15	20196	804.78
6548	803.63	14012	804.26	21384	804.89

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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

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