ANALYSIS OF EXTERNAL OPTICAL FEEDBACK CHARACTERISTICS OF ASYMMETRIC, QUARTER-WAVE-SHIFTED, DISTRIBUTED-FEEDBACK SEMICONDUCTOR-LASERS

Authors
ALAM MF KARIM MA ISLAM S
Citation
Mf. Alam et al., ANALYSIS OF EXTERNAL OPTICAL FEEDBACK CHARACTERISTICS OF ASYMMETRIC, QUARTER-WAVE-SHIFTED, DISTRIBUTED-FEEDBACK SEMICONDUCTOR-LASERS, Applied optics, 36(18), 1997, pp. 4131-4137
Citations number
21
Categorie Soggetti
Optics
Journal title
Applied optics → ACNP
ISSN journal
00036935
Volume
36
Issue
18
Year of publication
1997
Pages
4131 - 4137
Database
ISI
SICI code
0003-6935(1997)36:18<4131:AOEOFC>2.0.ZU;2-6
Abstract
External optical feedback sensitivity is analyzed for a quarter-wave-s hifted, index-coupled, distributed-feedback semiconductor laser with a symmetries in reflectivity of facets and in the position of a lambda/4 phase shift. Proper asymmetric structures can withstand higher levels of external optical feedback compared with symmetric structures. Howe ver, the mode discrimination and yield are reduced for asymmetric lase rs because of statistical variation of the corrugation phases at the r eflecting facets. (C) 1997 Optical Society of America.