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Proceedings Paper

Wavelength tunable single-frequency Cr:ZnSe laser
Author(s): Qing Wang; Congcong Liu; Lei Qi; Yalan Wang; Chunqing Gao
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Paper Abstract

We demonstrate a wavelength tunable continuous wave single-frequency Cr:ZnSe laser based on a self-seeded ring cavity configuration in this paper. The laser system is based on anti-coated Cr:ZnSe crystal which has a length of 6 mm and a low signal transmission of 15% (at 1908nm). Unidirectional operation of Cr:ZnSe laser is obtained by using a retro-reflecting device which can retro reflect a self-seed laser back into the ring cavity. The transmission of the output coupler is also optimized to get unidirectional operation. With three different birefringent filters inserting in the cavity, single-frequency operation with narrow linewidth is obtained. By rotating the angle of the birefringent filters, the laser’s wavelength under single-frequency operation could be continuously tuned from 2338 nm to 2572 nm. The tuning range is over 200 nm. The maximum single-frequency output power is 0.92 W at wavelength of 2357 nm.

Paper Details

Date Published: 12 March 2020
PDF: 7 pages
Proc. SPIE 11437, 2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 114370H (12 March 2020); doi: 10.1117/12.2548520
Show Author Affiliations
Qing Wang, Beijing Institute of Technology (China)
Key Lab. of Information Technology (China)
Congcong Liu, Beijing Institute of Technology (China)
Key Lab. of Information Technology (China)
Lei Qi, Beijing Institute of Technology (China)
Key Lab. of Information Technology (China)
Yalan Wang, Beijing Institute of Technology (China)
Key Lab. of Information Technology (China)
Chunqing Gao, Beijing Institute of Technology (China)
Key Lab. of Information Technology (China)


Published in SPIE Proceedings Vol. 11437:
2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications
Zhiyi Wei; Chunqing Gao; Pu Wang; Franz X, Kärtner; Stefan A. Weber, Editor(s)

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