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Proceedings Paper

Free-space midinfrared optical links using quantum cascade lasers
Author(s): Rainer Martini; Clyde G. Bethea; Federico Capasso; Claire F. Gmachl; Roberto Paiella; Edward A. Whittaker; Harold Y. Hwang; Deborah L. Sivco; James N. Baillargeon; Alfred Y. Cho
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Paper Abstract

We present experimental results for an optical free-space high-speed link using direct modulated mid-infrared (8.1 μm) quantum cascade lasers. A stable link was realized over a distance of 200m and QPSK encoded multimedia data were transmitted and received error-free, incorporating several hundred digitally encoded multimedia channels. The reliability of the system against weather influence (fog) was experimentally compared to that of a near-infrared (0.85 μm) link. Under clear weather conditions comparable results were obtained in both links. However, a higher stability of the MIR link was clearly observed under a dense fog situation.

Paper Details

Date Published: 3 July 2003
PDF: 5 pages
Proc. SPIE 4975, Free-Space Laser Communication Technologies XV, (3 July 2003); doi: 10.1117/12.478934
Show Author Affiliations
Rainer Martini, Lucent Technologies/Bell Labs. (United States)
Stevens Institute of Technology (United States)
Clyde G. Bethea, Lucent Technologies/Bell Labs. (United States)
Federico Capasso, Lucent Technologies/Bell Labs. (United States)
Claire F. Gmachl, Lucent Technologies/Bell Labs. (United States)
Roberto Paiella, Agere Systems (United States)
Edward A. Whittaker, Stevens Institute of Technology (United States)
Harold Y. Hwang, Lucent Technologies/Bell Labs. (United States)
Deborah L. Sivco, Lucent Technologies/Bell Labs. (United States)
James N. Baillargeon, Lucent Technologies/Bell Labs. (United States)
Alfred Y. Cho, Lucent Technologies/Bell Labs. (United States)

Published in SPIE Proceedings Vol. 4975:
Free-Space Laser Communication Technologies XV
G. Stephen Mecherle, Editor(s)

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