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Browse Journals & Magazines > Photonics Technology Letters, ...> Volume:9 Issue:8 Help

Tailoring characteristics of DFB lasers with low- and high-reflection facets by using sampled gratings

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2 Author(s)
Sang-Bae Kim ; Dept. of Electr. & Electron. Eng., Ajou Univ., Suwon, South Korea ; Sung-Han Kim

Tailorability of distributed-feedback (DFB) laser characteristics by sampled grating has been pursued for DFB lasers with low- and high-reflection facets. This is based on the finding that there exists close correlation between the threshold gain difference and the axial photon distribution of the main and side modes. An effective-index transfer matrix method is used. This finding enables us to tailor DFB laser characteristics, and shows the futility of an attempt to relieve longitudinal spatial hole burning by making similar the axial photon distribution of the main and side modes. The threshold gain difference is shown to be improved by more than 15% by simple changing the arrangement of the sampled regions.

Published in:
Photonics Technology Letters, IEEE  (Volume:9 ,  Issue: 8 )

Date of Publication: Aug. 1997

Page(s):
1078 - 1080
ISSN :
1041-1135
INSPEC Accession Number:
5655305
Digital Object Identifier :
10.1109/68.605506
Product Type:
Journals & Magazines
Date of Current Version :
06 August 2002
Issue Date :
Aug. 1997
Sponsored by :
IEEE Photonics Society

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