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Optical Engineering

Laser distribution by optical fiber bundle in the ultrawideband antenna array
Author(s): Chi Ruan; Wei Zhao; Baiyu Liu; Hongjun Liu
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Paper Abstract

In a photoconductive semiconductor switch (PCSS) ultrawideband (UWB) array system, optical fiber bundles with several hundreds or more fibers are employed to distribute laser beam energy and yield multiple laser beams with the same energy and coherence. Ideally, if each fiber of the bundle is the same length, the laser beams transmit in the fiber and may arrive to the PCSS simultaneously in the UWB array system. In this work, the coupling rate of the fiber bundle is estimated. The experimental result of dividing laser energy shows that multiple lasers can be obtained by using a fiber bundle. Specifically, the experiments on the 17-PCSS antenna array radiation indicate that the pulses generated by PCSS give up only several picoseconds of time jitters, thus demonstrating that laser distribution by fiber bundle can be used for UWB coherent combination.

Paper Details

Date Published: 1 October 2008
PDF: 6 pages
Opt. Eng. 47(10) 104302 doi: 10.1117/1.3005370
Published in: Optical Engineering Volume 47, Issue 10
Show Author Affiliations
Chi Ruan, Xi'an Institute of Optics and Precision Mechanics (China)
Wei Zhao, Xi'an Institute of Optics and Precision Mechanics (China)
Baiyu Liu, Xi'an Institute of Optics and Precision Mechanics (China)
Hongjun Liu, Xi'an Institute of Optics and Precision Mechanics (China)


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