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7 March 2019 Dual-wavelength Nd:CALGO laser based on an intracavity birefringent filter
R. Akbari, P. Loiko, J. Xu, X. Xu, A. Major
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Proceedings Volume 10896, Solid State Lasers XXVIII: Technology and Devices; 1089611 (2019) https://doi.org/10.1117/12.2508974
Event: SPIE LASE, 2019, San Francisco, California, United States
Abstract
We demonstrated continuous-wave dual-wavelength (DW) operation of a Nd:CALGO laser using a single birefringent filter (BRF) plate. Owing to a new mechanism of the BRF loss action, the equal lasing thresholds at two wavelengths could be provided by a single transmission peak of the filter and wavelength separation was not limited to the free-spectral range (FSR) of the filter. A wide range of DW pairs with wavelength separation from sub-nm up to ~4 nm with adjustable spectral intensity ratio was experimentally demonstrated using a single 2 mm-thick BRF plate.
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R. Akbari, P. Loiko, J. Xu, X. Xu, and A. Major "Dual-wavelength Nd:CALGO laser based on an intracavity birefringent filter", Proc. SPIE 10896, Solid State Lasers XXVIII: Technology and Devices, 1089611 (7 March 2019); https://doi.org/10.1117/12.2508974
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KEYWORDS
Optical filters
Laser crystals
Crystals
Continuous wave operation
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