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Frequency tunability of three-mirror waveguide resonators

Journal Article · · Appl. Opt.; (United States)
DOI:https://doi.org/10.1364/AO.25.002188· OSTI ID:5501016

We present a simple theory of the tuning behavior of a laser resonator with three mirrors, where one pair of mirrors acts as a passive etalon reflector for the active main cavity. We are particularly interested in the case where the active medium is a high-pressure waveguide CO/sub 2/ discharge and the etalon is an effect composite reflector formed by a mirror-grating or mirror-lens-grating combination. We show that for this type of device continuous tuning ranges well above the main cavity free spectral range may be possible.

Research Organization:
University of Hull, Department of Applied Physics, Hull HU6 7RX, U.K.
OSTI ID:
5501016
Journal Information:
Appl. Opt.; (United States), Journal Name: Appl. Opt.; (United States) Vol. 25:13; ISSN APOPA
Country of Publication:
United States
Language:
English

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