Component-level simulation of optical beamforming systems

Bruce A. Black; Azad Siahmakoun; Laura J. Slaybaugh; Jeffrey A. Chestnut; Dean Thalen

doi:10.1117/12.436043

30 July 2001 Component-level simulation of optical beamforming systems

Bruce A. Black, Azad Siahmakoun, Laura J. Slaybaugh, Jeffrey A. Chestnut, Dean Thalen

Proceedings Volume 4532, Active and Passive Optical Components for WDM Communication; (2001) https://doi.org/10.1117/12.436043
Event: ITCom 2001: International Symposium on the Convergence of IT and Communications, 2001, Denver, CO, United States

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.

Citation Download Citation

Bruce A. Black, Azad Siahmakoun, Laura J. Slaybaugh, Jeffrey A. Chestnut, and Dean Thalen "Component-level simulation of optical beamforming systems", Proc. SPIE 4532, Active and Passive Optical Components for WDM Communication, (30 July 2001); https://doi.org/10.1117/12.436043

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