Material selection and coating system design of GaSb-based laser cavity mask

Gao Ting; Qu Yi; Xu Zhengwen; Wang Xin; Li Zaijin

doi:10.3788/HPLPB201426.011006

Volume 26 Issue 01

Jan. 2014

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Article Navigation > High Power Laser and Particle Beams > 2014 > 26(01): 011006

Li Feng, Wang Meng, Yang Zun, et al. Surface flashover character of insulator in vacuum under self-magnetic field[J]. High Power Laser and Particle Beams, 2012, 24: 2925-2929. doi: 10.3788/HPLPB20122412.2925

Citation:

Gao Ting, Qu Yi, Xu Zhengwen, et al. Material selection and coating system design of GaSb-based laser cavity mask[J]. High Power Laser and Particle Beams, 2014, 26: 011006. doi: 10.3788/HPLPB201426.011006

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Material selection and coating system design of GaSb-based laser cavity mask

doi: 10.3788/HPLPB201426.011006

1.
National Key Laboratory on High Power Semiconductor Lasers,Changchun University of Science and Technology,Changchun 130022,China

Received Date: 2013-04-10
Rev Recd Date: 2013-09-04
Publish Date: 2014-01-15

Abstract

Abstract

In order to improve the reflectance of the GaSb-based laser cavity mask, the laser cavity film was designed in accordance with the relevant film design theory and by film-design software. The reflectance of the high anti-reflection film was higher than 95% in the band of 2-3.5 m; the transmittance of the antireflective film was higher than 99% at the wavelength of 2.5 m. The theoretical and experimental reflectance curves of high reflector and the single layer antireflection coating were compared through repeated experiments. Though the experimental results did not reach the theoretical value, they could meet the requirements of the application. The selection of the film materials was discussed by comparison of various material properties.
- film design,
- GaSb-based lasers,
- laser cavity mask,
- film material

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