True-time-delay free-space laser communication feasibility demonstration

David S. Sumida; Shuoqin Wang; David M. Pepper

doi:10.1117/12.562087

20 October 2004 True-time-delay free-space laser communication feasibility demonstration

David S. Sumida, Shuoqin Wang, David M. Pepper

Proceedings Volume 5550, Free-Space Laser Communications IV; (2004) https://doi.org/10.1117/12.562087
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

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.

Citation Download Citation

David S. Sumida, Shuoqin Wang, and David M. Pepper "True-time-delay free-space laser communication feasibility demonstration", Proc. SPIE 5550, Free-Space Laser Communications IV, (20 October 2004); https://doi.org/10.1117/12.562087

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