1.3- mu m distributed feedback laser diode with a grating accurately controlled by a new fabrication technique
- 1 January 1989
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 7 (12) , 2072-2077
- https://doi.org/10.1109/50.41632
Abstract
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.Keywords
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