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- Title
Modal Domains and Selectivity in Large Square Lasers.
- Authors
Liming Liu; Ziyuan Li; Hattori, Haroldo T.
- Abstract
Modes in square resonators have C4v symmetry. A special set of modes in these resonators have odd parities and behave like whispering gallery modes. These quasi-whispering gallery modes have high quality factors and exhibit interesting features. In particular, higher order quasi-whispering gallery modes present nodes that seem to be grouped into smaller domains. We show that the removal of one of these domains does not significantly affect a particular mode but can lead to significant increment in the radiation losses of other modes. This mode selectivity process can eventually be used to develop quasi single-mode lasers.
- Subjects
LASER beams; WHISPERING gallery modes; RADIO resonators; SYMMETRY (Physics); SINGLE-mode optical fibers; RADIATION
- Publication
Journal of Microwaves, Optoelectronics & Electromagnetic Applications, 2013, Vol 12, Issue 2, p256
- ISSN
2179-1074
- Publication type
Article
- DOI
10.1590/s2179-10742013000200002