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Proceedings Paper

Optical Feedback Stabilization Of Laser Diodes For Rotation Sensing Applications
Author(s): Daniel J. Stech; Daniel J. Biezad
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Paper Abstract

Reduced cost, greater reliability, and compatibility with integrated optics are some of the advantages gained by incorporating semiconductor lasers into the design of passive resonant ring laser gyroscopes (PRRLG). Unfortunately, the large spectral linewidth typical of semiconductor lasers greatly limits the sensitivity of such a configuration. This research details the modification of a laser diode to obtain a stable, single mode, narrow spectral output using an optical feedback configuration compatible with the input optics to a PRRLG. Spectral narrowing and modal dynamics of the external coupled cavity laser were measured. By temperature stabilization and optical feedback a free running linewidth of 60 MHz was reduced to approximately 13 MHz or less and was maintained in a single mode for over 20 minutes.

Paper Details

Date Published: 11 March 1987
PDF: 6 pages
Proc. SPIE 0719, Fiber Optic Gyros: 10th Anniversary Conf, (11 March 1987); doi: 10.1117/12.937558
Show Author Affiliations
Daniel J. Stech, Frank J. Seiler Research Laboratory (United States)
Daniel J. Biezad, Air Force Institute of Technology (United States)


Published in SPIE Proceedings Vol. 0719:
Fiber Optic Gyros: 10th Anniversary Conf
Eric Udd, Editor(s)

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