Modal properties of laser arrays using diffractive mode-selecting mirrors

James R. Leger, Greg S. Mowry

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The modal properties of a laser resonator consisting of an array of sources and a diffractive mode-selecting mirror are presented. The modal discrimination is optimized by selection of cavity parameters, and can be enhanced by additional diffractive elements. We find that the modal properties differ significantly from a conventional Talbot cavity. Because of the diffractive mode-selecting mirror, these are virtually no edge effects and the fundamental mode loss is very small. The modal discrimination is maximized at a round-trip cavity length of both one-half and one Talbot distance. There is an optimum array fill factor that depends on the cavity length and the array size. Finally, if the cavity length and fill factor are optimized, there is no loss of discrimination with increasing numbers of elements in the array.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsNeal B. Abraham, Yakov I. Khanin
Pages208-214
Number of pages7
StatePublished - Jan 1 1996
EventLaser Optics '95: Nonlinear Dynamics in Lasers - St. Petersburg, Russia
Duration: Jun 27 1995Jul 1 1995

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2792
ISSN (Print)0277-786X

Other

OtherLaser Optics '95: Nonlinear Dynamics in Lasers
CitySt. Petersburg, Russia
Period6/27/957/1/95

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