Realizing high efficiency spectral beam combining with dual-gratings based on conical diffraction

Juan Wu; Jianmin Li; Xinqi Yin; Lijiang Zeng; Keqiang Qiu; Chaoming Li; Hong Yan

doi:10.11884/HPLPB202032.200192

Journals >High Power Laser and Particle Beams >Volume 32 >Issue 12 >Page 121006 > Article

High Power Laser and Particle Beams
Vol. 32, Issue 12, 121006 (2020)

Realizing high efficiency spectral beam combining with dual-gratings based on conical diffraction

Juan Wu¹, Jianmin Li¹, Xinqi Yin¹, Lijiang Zeng², Keqiang Qiu³, Chaoming Li⁴, and Hong Yan^1、*

Author Affiliations

¹Institute of Applied Electronics, CAEP, Mianyang, China

²Department of Precision Instrument, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, China

³National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China

⁴School of Optoelectronic Science and Engineering, Soochow University, Suzhou 215006, China

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DOI: 10.11884/HPLPB202032.200192 Cite this Article

Juan Wu, Jianmin Li, Xinqi Yin, Lijiang Zeng, Keqiang Qiu, Chaoming Li, Hong Yan. Realizing high efficiency spectral beam combining with dual-gratings based on conical diffraction[J]. High Power Laser and Particle Beams, 2020, 32(12): 121006 Copy Citation Text

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No.	unit beam wavelength/nm	unit beam interval/mm	θ/(°)	φ/(°)	L/mm	H_i/mm	Δy_i/mm
1	1050.24	0	43.99	5.77	756	−147.654	0.042
2	1051.28	1.9	43.99	5.77	756	−147.659	0.037
3	1052.31	3.8	43.99	5.77	756	−147.665	0.031
4	1053.35	5.7	43.99	5.77	756	−147.67	0.025
5	1054.37	7.6	43.99	5.77	756	−147.676	0.019
6	1055.39	9.5	43.99	5.77	756	−147.682	0.013
7	1056.4	11.4	43.99	5.77	756	−147.689	0.007
8	1057.41	13.3	43.99	5.77	756	−147.696	0
9	1058.41	15.2	43.99	5.77	756	−147.703	−0.007
10	1059.41	17.1	43.99	5.77	756	−147.71	−0.014
11	1060.4	19.0	43.99	5.77	756	−147.717	−0.022
12	1061.39	20.9	43.99	5.77	756	−147.725	−0.029
13	1062.38	22.8	43.99	5.77	756	−147.733	−0.037
14	1063.35	24.7	43.99	5.77	756	−147.741	−0.045
15	1064.33	26.6	43.99	5.77	756	−147.749	−0.054

Table 1.

Academic value of spectral combining approach with dual-MLD-grating based on conical diffraction

一组双MLD光栅锥面衍射合成系统参数理论值

No.	θ/(°)	φ/(°)	input power/mW	output power/mW	combining efficiency/%	diffraction type
1	43.99	5.77	23.22	21.57	92.9	conical diffraction
2	47.00	0	23.22	19.53	84.1	non-conical diffraction

Table 2.

Combining efficiency of the spectral combining approach under the conical diffraction and non-conical diffraction

基于锥面衍射和非锥面衍射的双光栅光谱合成系统的合成效率对比

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