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 1983-09, Vol.19 (9), p.1452-1457
Main Authors: Preiswerk, H., Lubanski, M., Gnepf, S., Kneubuhl, F.
Format: Article
Language:English
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
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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.
ISSN:0018-9197
1558-1713
DOI:10.1109/JQE.1983.1072049