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Proceedings Paper

Theoretical model for frequency locking a diode laser with a Faraday cell
Author(s): Peter G. Wanninger; Thomas M. Shay
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Paper Abstract

Common methods for frequency stabilizing diode lasers systems employ gratings, etalons, optical electric double feedback, atomic resonance and a Faraday cell with low magnetic field. Our method, the Faraday Anomalous Dispersion Optical Transmitter (FADOT) laser locking, is much simpler than other schemes. The FADO'r commercial laser diodes with no antireflection coatings, an atomic Faraday cell with a single polarizer, and an output coupler to form a compound cavity. This method is vibration insensitive, thermal expansion effects are minimal, and the system has a frequency pull in range of 443.2 GHz (9A). Our technique is based on the Faraday Anomalous Dispersion Optical Filter. This method has potential applications in optical communication, remote sensing, and pumping laser excited optical filters. We present the first theoretical model for the FADOT and compare the calculations to our experimental results.

Paper Details

Date Published: 26 June 1992
PDF: 10 pages
Proc. SPIE 1634, Laser Diode Technology and Applications IV, (26 June 1992); doi: 10.1117/12.59161
Show Author Affiliations
Peter G. Wanninger, New Mexico State Univ. (United States)
Thomas M. Shay, New Mexico State Univ. (United States)

Published in SPIE Proceedings Vol. 1634:
Laser Diode Technology and Applications IV
Daniel S. Renner, Editor(s)

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