1.3-mu m distributed feedback laser diode with a gratingaccurately controlled by a new fabrication technique

The coupling constant that determines the characteristics of distributed feedback laser diodes (DFB LDs) is controlled by employing the metalorganic chemical vapor deposition (MOCVD) technique and inserting a barrier layer between the active layer and the guiding layer. It is shown that the measured...

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Bibliographic Details
Published in:Journal of lightwave technology 1989-12, Vol.7 (12), p.2072-2077
Main Authors: Takemoto, A, Ohkura, Y, Kawama, Y, Nakajima, Y, Kimura, T, Yoshida, N, Kakimoto, S, Susaki, W
Format: Article
Language:English
Online Access:Get full text
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Summary:The coupling constant that determines the characteristics of distributed feedback laser diodes (DFB LDs) is controlled by employing the metalorganic chemical vapor deposition (MOCVD) technique and inserting a barrier layer between the active layer and the guiding layer. It is shown that the measured coupling constant is in good agreement with the designed coupling constant. Lasers with a small coupling constant have a large slope efficiency. Lasers with the above structure are expected to have a long life, comparable to that of conventional DFB LDs
ISSN:0733-8724
DOI:10.1109/50.41632