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Degradation behaviour of highly coherent 1‐55 μm long‐cavity multiple quantum well DFB lasers
Author(s) -
Fukuda Mitsuo,
Kano Fumiyoshi,
Kurosaki Takeshi,
Yoshida JunIchi
Publication year - 1993
Publication title -
quality and reliability engineering international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 62
eISSN - 1099-1638
pISSN - 0748-8017
DOI - 10.1002/qre.4680090422
Subject(s) - laser , degradation (telecommunications) , optoelectronics , materials science , optics , transmission (telecommunications) , quantum well , quantum , distributed feedback laser , physics , electronic engineering , computer science , engineering , telecommunications , quantum mechanics
This paper examines the degradation behaviour of spectral characteristics, such as spectral line‐width and FM response, in a 1·55 μm highly coherent multiple quantum well (MQW) DFB laser with a long‐cavity. The possibility of long‐life MQW DFB lasers for use in optical coherent transmission systems is demonstrated by clarifying the degradation behaviours.