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3 July 2003 Free-space midinfrared optical links using quantum cascade lasers
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Proceedings Volume 4975, Free-Space Laser Communication Technologies XV; (2003)
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States
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.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rainer Martini, Clyde G. Bethea, Federico Capasso, Claire F. Gmachl, Roberto Paiella, Edward A. Whittaker, Harold Y. Hwang, Deborah L. Sivco, James N. Baillargeon, and Alfred Y. Cho "Free-space midinfrared optical links using quantum cascade lasers", Proc. SPIE 4975, Free-Space Laser Communication Technologies XV, (3 July 2003);

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