Continuously tunable resonant ruby laser reflector

The general theoretical requirements for making multisurfaced (resonant) reflectors frequency-tunable are described. Specifically, eflectors that can be used to stabilize and control the lasing spectrum of ruby lasers are considered. Fabry-Perot ring analysis showed that a four-surface reflector (tw...

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Bibliographic Details
Published in:Applied optics (2004) 1973-03, Vol.12 (3), p.510-518
Main Authors: Johnson, M M, Lagrone, A H
Format: Article
Language:English
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Summary:The general theoretical requirements for making multisurfaced (resonant) reflectors frequency-tunable are described. Specifically, eflectors that can be used to stabilize and control the lasing spectrum of ruby lasers are considered. Fabry-Perot ring analysis showed that a four-surface reflector (two parallel sapphire flats) with a spacer (stellite) having close to the ideal thermal expansion coefficient, for thermal frequency tunability, could be used to continuously tune a ruby laser near 6944 A more than 0.3 A with a spectral width less than +/-0.01 A.
ISSN:1559-128X
DOI:10.1364/AO.12.000510