Researching | Narrow-spectral-span spectral beam combining with a nonparallel double-grating structure

Chinese Optics Letters, Volume. 15, Issue 9, 091403(2017)

Narrow-spectral-span spectral beam combining with a nonparallel double-grating structure

Quan Zhou^1,2, Changhe Zhou^1、*, Na Yu^1,2, Chunlong Wei¹, Wei Jia¹, and Yancong Lu^1,2

Author Affiliations

¹Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

²University of Chinese Academy of Sciences, Beijing 100049, China

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Fig. 1. Structure of beam combining.

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Fig. 2. Simplified optical path of a traditional SBC.

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Fig. 3. Simplified optical path of the double-grating SBC.

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Fig. 4. Spectrum of the double-grating SBC laser.

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Fig. 5. Spectrum of the single-grating SBC laser.

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Fig. 6. Output power and efficiency of the double-grating SBC laser, 30.9 W output power, and 70.5% efficiency is demonstrated.

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Fig. 7. (a) Beam quality after SBC. (b) The output beam spot.

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Quan Zhou, Changhe Zhou, Na Yu, Chunlong Wei, Wei Jia, Yancong Lu, "Narrow-spectral-span spectral beam combining with a nonparallel double-grating structure," Chin. Opt. Lett. 15, 091403 (2017)

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Paper Information

Category: Lasers and Laser Optics

Received: Apr. 11, 2017

Accepted: May. 19, 2017

Published Online: Jul. 19, 2018

The Author Email: Changhe Zhou (chazhou@mail.shcnc.ac.cn)

DOI:10.3788/COL201715.091403

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology