DocumentCode
1439421
Title
Antireflection-coated angled facet design
Author
Reed, M. ; Benson, T.M. ; Kendall, P.C. ; Sewell, P.
Author_Institution
Dept. of Electr. & Electron. Eng., Nottingham Univ., UK
Volume
143
Issue
4
fYear
1996
fDate
8/1/1996 12:00:00 AM
Firstpage
214
Lastpage
220
Abstract
New and accurate semianalytical expressions, based on the free-space radiation mode method, are derived for the reflectivity of a polarised guided mode of a slab waveguide incident on a multicoated laser facet at an arbitrary angle. Solutions may be obtained simply and with minimum computational effort. Results presented confirm that the coated angled facet can reduce the guided-mode reflectivity to near zero for both polarisations. The far-field radiation pattern is also significantly modified by angling the waveguide to the facet
Keywords
antireflection coatings; laser accessories; light polarisation; optical design techniques; optical films; optical waveguide theory; reflectivity; semiconductor lasers; accurate semianalytical expression; antireflection-coated angled facet design; arbitrary angle; coated angled facet; far-field radiation pattern; free-space radiation mode method; guided-mode reflectivity; minimum computational effort; multicoated laser facet; polarisations; polarised guided mode; reflectivity; slab waveguide;
fLanguage
English
Journal_Title
Optoelectronics, IEE Proceedings -
Publisher
iet
ISSN
1350-2433
Type
jour
DOI
10.1049/ip-opt:19960597
Filename
543054
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