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Proceedings Paper

Optical Sources for Coherent Optical Fiber Communication Systems
Author(s): Richard S. Vodhanel
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Paper Abstract

This paper reports recent progress in the development of three categories of optical sources with linewidths, Ay, sufficiently narrow to be used in heterodyne and homodyne optical fiber communication systems: First, single-longitudinal-mode semiconductor lasers with relatively broad linewidths of several tens of MHz, suitable for amplitude-shift-keying and frequency-shift-keying heterodyne with envelope detection. Second, semi-conductor lasers with weak optical feedback having Lv = 1 MHz. Such narrow linewidth sources would be required for differential-phase-shift-keying heterodyne detection. Third, semiconductor lasers with strong optical feedback, and 1523 nm He-Ne lasers, both having Av , ▵ν≤15kHz ,Such very narrow linewidth sources would be required for PSK homodyne detection.

Paper Details

Date Published: 31 October 1985
PDF: 7 pages
Proc. SPIE 0568, Coherent Technology in Fiber Optic Systems I, (31 October 1985); doi: 10.1117/12.949848
Show Author Affiliations
Richard S. Vodhanel, Bell Communications Research, Inc. (United States)

Published in SPIE Proceedings Vol. 0568:
Coherent Technology in Fiber Optic Systems I
Virginia A. Ormiston; Frederic Quan, Editor(s)

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