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Distributed feedback modes in a partially filled ring cavityThe threshold longitudinal modes of a structure composed of a ring cavity partially filled with a distributed feedback (DFB) medium have been studied. An eigenvalue equation and dispersion relation for the propagation constant, threshold gain, and mode location are derived and numerically solved for a number of cases. It is shown that the incommensurate nature of the unfilled ring cavity eigenfrequencies and DFB eigenfrequencies can lead to an enhancement of the frequency selectivity of the distributed feedback laser. The analysis is extended to consider finite linewidth and dispersion.
Document ID
19870044372
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Rabinovich, William S.
(Brown Univ. Providence, RI, United States)
Lawandy, Nabil M.
(Brown University Providence, RI, United States)
Date Acquired
August 13, 2013
Publication Date
February 1, 1987
Publication Information
Publication: IEEE Journal of Quantum Electronics
Volume: QE-23
ISSN: 0018-9197
Subject Category
Lasers And Masers
Accession Number
87A31646
Distribution Limits
Public
Copyright
Other

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