Group theory and realization of a helical distributed feedback laser

This study is devoted to theory and first realization of a helical distributed feedback (DFB) laser. The theory emphasizes the group theoretic aspects of helical and linear periodic DFB lasers. It is demonstrated that the dispersion relations of the helical DFB modes are neither periodic nor necessa...

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Bibliographic Details
Published in:	IEEE journal of quantum electronics Vol. 19; no. 9; pp. 1452 - 1457
Main Authors:	Preiswerk, H., Lubanski, M., Gnepf, S., Kneubuhl, F.
Format:	Journal Article
Language:	English
Published:	New York, NY IEEE 01-09-1983 Institute of Electrical and Electronics Engineers
Subjects:	Dispersion Distributed feedback devices Electromagnetic waveguides Exact sciences and technology Fundamental areas of phenomenology (including applications) Gas lasers General laser theory Laser feedback Laser modes Laser theory Lasers Optical waveguides Optics Physics Pump lasers Waveguide lasers Gas laser Theory Distributed feedback laser Submillimetric wave Laser
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Summary:	This study is devoted to theory and first realization of a helical distributed feedback (DFB) laser. The theory emphasizes the group theoretic aspects of helical and linear periodic DFB lasers. It is demonstrated that the dispersion relations of the helical DFB modes are neither periodic nor necessarily symmetric with respect to the propagation constant. Nevertheless, DFB effects exist in helical as well as in linear periodic laser structures. Finally, the first experimental realization of a helical DFB laser is described.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0018-9197 1558-1713
DOI:	10.1109/JQE.1983.1072049