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@article{Damzen:2020:10.1364/JOSAB.395394,
author = {Damzen, M and Sathian, J and Tawy, G and Sheng, X and Minassian, A},
doi = {10.1364/JOSAB.395394},
journal = {Journal of the Optical Society of America B: Optical Physics},
pages = {2185--2192},
title = {Non-astigmatic Alexandrite ring laser design with wavelength-tunable single-longitudinal-mode operation},
url = {http://dx.doi.org/10.1364/JOSAB.395394},
volume = {37},
year = {2020}
}

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TY  - JOUR
AB  - This work presents a study of a fully nonastigmatic design of a single-longitudinal-mode, wavelength-tunable, unidirectional alexandrite ring laser cavity and assessment of its performance compared to more complex laser design requiring astigmatism compensation. A “displaced mode” nonastigmatic laser cavity design eliminating astigmatic cavity elements is developed around an alexandrite crystal end-pumped by a low-brightness, high-power red diode laser pump system. Single-longitudinal-mode, continuous-wave operation is demonstrated with output power of 700 mW with an excellent TEM00 mode (M2<1.1) across a wide pump power range. Wavelength tuning from 748–773 nm is produced using a birefringent filter plate. The nonastigmatic alexandrite laser design achieves better spatial quality and resilience to maintain TEM00 operation across wide variation in pump-induced lensing compared to the astigmatic design. To the best of our knowledge, this is the first wavelength-tunable, single-longitudinal-mode operation of a unidirectional alexandrite ring system in a fully nonastigmatic cavity regime.
AU  - Damzen,M
AU  - Sathian,J
AU  - Tawy,G
AU  - Sheng,X
AU  - Minassian,A
DO  - 10.1364/JOSAB.395394
EP  - 2192
PY  - 2020///
SN  - 0740-3224
SP  - 2185
TI  - Non-astigmatic Alexandrite ring laser design with wavelength-tunable single-longitudinal-mode operation
T2  - Journal of the Optical Society of America B: Optical Physics
UR  - http://dx.doi.org/10.1364/JOSAB.395394
UR  - https://www.osapublishing.org/josab/abstract.cfm?uri=josab-37-7-2185
UR  - http://hdl.handle.net/10044/1/80933
VL  - 37
ER  -

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