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Proceedings Paper

Component-level simulation of optical beamforming systems
Author(s): Bruce A. Black; Azad Siahmakoun; Laura J. Slaybaugh; Jeffrey A. Chestnut; Dean Thalen
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Paper Abstract

Binary fiber Bragg grating arrays are capable of providing a true-time-delay capability needed for beamforming. The grating arrays consists of a series of fibers connected by circulators and switches. Each fiber contains tow or more fiber Bragg gratings on a fiber may become smaller than the grating length. Alterative architectures that use ternary switching have been proposed that show promise in reducing the constraints on grating spacing, but require carful control of grating position. Component-level simulation was carried out to compare alterative architectures and to evaluate effects of tolerances in grating placement, component imperfections, connector losses, and similar impairments whose overall consequences are difficult to predict. Fiber Bragg gratings, channel balancers, switches, and other beamfomer components were modeled. Beamforming arrays were simulated that focus tow antennas, and allow beamscanning over a +/- 70 degrees angle in thirty-two discrete steps. The baseband bandwidth was assumed to exceed 1 GHz. Binary and ternary array structures were compared. The PHOTOSS photonics system simulator provided the simulation engine. Beam patterns were calculated for a beam sweeping past a broadside target, and for a beam sweeping past targets at other angles. Results of simulation have been used to inform decisions as physical systems are realized.

Paper Details

Date Published: 30 July 2001
PDF: 6 pages
Proc. SPIE 4532, Active and Passive Optical Components for WDM Communication, (30 July 2001); doi: 10.1117/12.436043
Show Author Affiliations
Bruce A. Black, Rose-Hulman Institute of Technology (United States)
Azad Siahmakoun, Rose-Hulman Institute of Technology (United States)
Laura J. Slaybaugh, Rose-Hulman Institute of Technology (United States)
Jeffrey A. Chestnut, Naval Surface Warfare Ctr. (United States)
Dean Thalen, Technology Service Corp. (United States)

Published in SPIE Proceedings Vol. 4532:
Active and Passive Optical Components for WDM Communication
Achyut Kumar Dutta; Abdul Ahad Sami Awwal; Niloy K. Dutta; Katsunari Okamoto, Editor(s)

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