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Modal interference and dynamical instability in a solid-state slice laser with asymmetric end-pumping

Authors :
Jing-Yuan Ko
Tsong-Shin Lim
Kenju Otsuka
Hironori Makino
Source :
Physical review letters. 89(8)
Publication Year :
2002

Abstract

We observed complicated emission patterns consisting of different transverse modes and associated intensity pulsations at beat frequencies between pairs of transverse eigenmodes in a solid-state thin-slice Fabry-Perot laser with asymmetric end-pumping. The dependence of transverse patterns and pulsation frequencies on pump power has been demonstrated. The interference among nonorthogonal transverse eigenmodes, which are formed in a deformed Fabry-Perot microcavity possessing an asymmetric, gradient refractive-index potential for optical waves, is proposed for explaining observed instabilities. Intensity modulations have been remarkably reproduced by numerical simulations of model equations.

Details

ISSN :
00319007
Volume :
89
Issue :
8
Database :
OpenAIRE
Journal :
Physical review letters
Accession number :
edsair.doi.dedup.....e2fef249434f2f907e1360800d28c9f0