Unidirectionality of an optically pumped far infrared ring laser

An experimental and theoretical investigation has been made on the unidirectional operation of an optically pumped far infrared ring laser. A ring laser operating on the 119 μm line of CH 3OH experiences reversal of output direction in either case of (a) the pump frequency being tuned across the lin...

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Bibliographic Details
Published in:Optics communications 1995-06, Vol.117 (5), p.462-468
Main Authors: Matsushima, Kyoji, Higashida, Noriyoshi, Sokabe, Noburu, Ariyasu, Tomio
Format: Article
Language:English
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Summary:An experimental and theoretical investigation has been made on the unidirectional operation of an optically pumped far infrared ring laser. A ring laser operating on the 119 μm line of CH 3OH experiences reversal of output direction in either case of (a) the pump frequency being tuned across the line center of the infrared pump transition or (b) the fir cavity being tuned across the far infrared line center. A model based on two-mode laser theory predicts the output directionality of the optically pumped fir ring laser.
ISSN:0030-4018
1873-0310
DOI:10.1016/0030-4018(95)00189-F