DocumentCode
795412
Title
High-efficiency dual-beam vertical cavity surface emitting lasers for inteferometric applications
Author
Justice, J.P. ; O´Callaghan, James ; Corbett, Brandon
Author_Institution
Photonic Sources Group, Tyndall Nat. Inst., Cork
Volume
42
Issue
21
fYear
2006
Firstpage
1226
Lastpage
1227
Abstract
Reported are the characteristics of 850 nm vertical cavity surface emitting lasers (VCSELs) with integrated linear diffractive gratings emitting a dual-beam output with negligible increase in threshold and excellent zero-order cancellation. Power emitted into the first orders is greater than 80%. The use of a dual-beam VCSEL for measurement of surface topography using interferometry is demonstrated
Keywords
diffraction gratings; light interferometry; measurement by laser beam; quantum well lasers; surface emitting lasers; surface topography measurement; 850 nm; dual-beam VCSEL; dual-beam vertical cavity surface emitting lasers; high-efficiency vertical cavity surface emitting lasers; inteferometric applications; integrated linear diffractive gratings; surface topography measurement; zero-order cancellation;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
Filename
1715196
Link To Document