Frequency stabilisation of semiconductor lasers for heterodyne-type optical communication systems

DOI Web Site 15 Citations Open Access
  • T. Okoshi
    Department of Electronic Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Tokyo 113, Japan
  • K. Kikuchi
    Department of Electronic Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Tokyo 113, Japan

Bibliographic Information

Published
1980-02-28
DOI
  • 10.1049/el:19800129
Publisher
Institution of Engineering and Technology (IET)

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Description

In the somewhat distant future, heterodyne-type optical communications will appear, increasing channel capacity and repeater separation. At present, the greatest difficulty is the frequency drift of lasers. The letter describes an a.f.c. (automatic frequency control) experiment using a Peltier cooling element; it is shown that the frequency fluctuation can be reduced to below 10 MHz.

Journal

  • Electronics Letters

    Electronics Letters 16 (5), 179-181, 1980-02-28

    Institution of Engineering and Technology (IET)

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