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Your search keyword '"Lei, Ding"' showing total 2 results
Start Over Author "Lei, Ding" Journal applied optics
2 results on '"Lei, Ding"'

1. Coupling method for laser-diode-array end-pumped solid-state amplifiers

Author

Qinghua, Deng, Hansheng, Peng, Zhan, Sui, Lei, Ding, Mingzhong, Li, Yiming, Luo, Jun, Tang, Shaobo, He, Jianjun, Wang, Honghuan, Lin, Rui, Zhang, Ying, Deng, Yuanbin, Cheng, Zhenhua, Lu, Jianguo, Liu, and Yong, Liu

Subjects
Amplifiers (Electronics) -- Research, Semiconductor lasers -- Properties, Solid state physics -- Research, Simulation methods -- Methods, Astronomy, Physics
Abstract

A new coupling method is proposed for high-power laser-diode-array (LDA) end-pumped large-aperture amplifiers. In this method, stacks in the LDA are distributed on a spherical surface, and a hollow duct is placed after them. Both numerical simulations and experimental research have been done for this method. All results show that high coupling efficiency and uniform pumping field can be obtained simultaneously using this method. OCIS codes: 140.3300, 140.3580, 220.2740, 220.0220.

Published
2008

2. Using the spatial light modulator as a binary optical element: application to spatial beam shaping for high-power lasers

Author

Zhiwei Lu, Xiusheng Yan, Yulei Wang, Pengyuan Du, Lei Ding, L. Zhou, and Sensen Li

Subjects
Diffraction, Spatial light modulator, Materials science, Pixel, business.industry, Stray light, 02 engineering and technology, 021001 nanoscience & nanotechnology, Laser, 01 natural sciences, Atomic and Molecular Physics, and Optics, law.invention, 010309 optics, Optics, Transmission (telecommunications), law, 0103 physical sciences, Transmittance, Laser beam quality, Electrical and Electronic Engineering, 0210 nano-technology, business, Engineering (miscellaneous)
Abstract

The liquid crystal spatial light modulator (SLM) is an effective active beam-shaping device through adjusting each pixel transmittance to improve the spatial beam quality of the output laser, which can also be used as a binary optical element (BOE) with each pixel transmittance 0 or 1 to realize spatial beam shaping for high-power lasers. We present and demonstrate an efficient shaping method of the SLM used as BOE based on diffraction principle. The method can be used to control the output nearfield actively by compensating the spatial nonuniformity of transmission and amplification in the high-power laser system. Results show the output nearfield beam quality improves significantly after shaping by using this method with the fluence contrast changing from 22% to 11.3% within only two shots in the single-shot operation laser.

Published
2018

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