Free-space gigabit laser link experiment incorporating Japanese and Canadian technology development

Alexander Koujelev; Daniel Gratton; Louis Hotte; Yoshinori Arimoto

doi:10.1117/12.840420

26 February 2010 Free-space gigabit laser link experiment incorporating Japanese and Canadian technology development

Alexander Koujelev, Daniel Gratton, Louis Hotte, Yoshinori Arimoto

Proceedings Volume 7587, Free-Space Laser Communication Technologies XXII; 758707 (2010) https://doi.org/10.1117/12.840420
Event: SPIE LASE, 2010, San Francisco, California, United States

Abstract

This paper presents the results of the technology demonstration of a short distance free-space optical (FSO) communication link with 2.5 Gbps data rate. Each terminal consists of a gimbaled telescope, an acquisition and coarse tracking CCD and digital control system, a fine tracking system, a fiber-optic interface, transceivers, beacon lasers, and a bit error test set. Two different fine-tracking subsystems were set-up on these two terminals: the first one is based on a micro mechanical steering mirror developed at NICT, Japan; while the second is based on liquid crystal (nonlinear spatial light modulation mechanism), developed at CSA, Canada. Performance of the two systems, their compatibility and the future work are discussed.

Citation Download Citation

Alexander Koujelev, Daniel Gratton, Louis Hotte, and Yoshinori Arimoto "Free-space gigabit laser link experiment incorporating Japanese and Canadian technology development", Proc. SPIE 7587, Free-Space Laser Communication Technologies XXII, 758707 (26 February 2010); https://doi.org/10.1117/12.840420

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KEYWORDS

Nonlinear optics

Free space optics

Spatial light modulators

Telescopes

Mirrors

Modulation

Optical tracking

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