Design of asymmetric quarter-wave-shifted DFB semiconductor lasers
- 9 October 1986
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 22 (21) , 1113-1114
- https://doi.org/10.1049/el:19860762
Abstract
Quarter-wave-shifted distributed-feedback (QWS-DFB) semiconductor lasers with asymmetric structure are theoretically analysed in terms of wavelength selectivity, differential efficiency, linewidth and sensitivity to external optical feedback. The analysis is used to design narrow-linewidth lasers with low sensitivity to optical feedback for coherent transmission.Keywords
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