Helical distributed feedback gas laser

Hitherto, distributed feedback (DFB) was achieved in dye lasers, in solid state lasers as well as in gas lasers exclusively by linear periodic modulations of refraction index, waveguide cross section and/or gain. In this letter we report on the first experimental realization of a gas laser with a he...

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Published inPhysics letters. A Vol. 93; no. 1; pp. 15 - 17
Main Authors Preiswerk, H.P., Küttel, G., Kneubühl, F.K.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.01.1982
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Summary:Hitherto, distributed feedback (DFB) was achieved in dye lasers, in solid state lasers as well as in gas lasers exclusively by linear periodic modulations of refraction index, waveguide cross section and/or gain. In this letter we report on the first experimental realization of a gas laser with a helical DFB waveguide structure. Here, the laser feedback is provided by a nut instead of the usual mirrors or linear periodic DFB modulations.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(82)90643-0