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Proceedings Paper

True-time-delay free-space laser communication feasibility demonstration
Author(s): David S. Sumida; Shuoqin Wang; David M. Pepper
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Paper Abstract

We report our first experimental demonstration of an all-fiber true-time-delay (TTD) system integrated into our free-space laser-communication laboratory breadboard. Using far-field interference fringes at the target to monitor both temporal and spatial coherence, we demonstrated optical beam steering over nearly ±40° FOV with our high-bandwidth TTD system (i.e., 2.7-ps optical pulses at 10 GHz repetition frequency). The planar output aperture of the optical beam-steering device has an overall aperture-diameter of ~4 cm, while the TTD architecture utilized piezo fiber-stretcher components for low-cost, efficient programmable time-delay performance.

Paper Details

Date Published: 20 October 2004
PDF: 10 pages
Proc. SPIE 5550, Free-Space Laser Communications IV, (20 October 2004); doi: 10.1117/12.562087
Show Author Affiliations
David S. Sumida, HRL Labs., LLC (United States)
Shuoqin Wang, HRL Labs., LLC (United States)
David M. Pepper, Malibu Scientific (United States)

Published in SPIE Proceedings Vol. 5550:
Free-Space Laser Communications IV
Jennifer C. Ricklin; David G. Voelz, Editor(s)

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