Abbreviated Journal Title
J. Appl. Phys.
Keywords
LOCKED VCSEL ARRAYS; BEAM; Physics, Applied
Abstract
A phase locked array design, utilizing direct reflection feedback between adjacent cavities by an external grating, is analyzed and proposed. The narrow grating reflection bandwidth causes longitudinal mode selection, while the array geometry causes transverse wavenumber selection through the coupling strength. As a result, only one among the free running cavity eigenmodes can couple effectively into a phase locked collective eigenmode. The coupled array mode is experiencing the high reflectivity of the grating and surpasses the low gain of the free running modes, that experience only a much lower reflectivity from the cavity edge antireflective coating. These results suggest that in-phase locking and single mode operation can be achieved simultaneously through the use of an external narrow-bandwidth grating.
Journal Title
Journal of Applied Physics
Volume
103
Issue/Number
11
Publication Date
1-1-2008
Document Type
Article
DOI Link
Language
English
First Page
15
WOS Identifier
ISSN
0021-8979
Recommended Citation
Riyopoulos, S.; Venus, G.; and Glebov, L., "Mode selection and phase locking of sidelobe-emitting semiconductor laser arrays via reflection coupling from an external narrow-bandwidth grating" (2008). Faculty Bibliography 2000s. 892.
https://stars.library.ucf.edu/facultybib2000/892
Comments
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