Spatial Optical Signal Processing Beam Forming Network for 2-Dimensional Beam Steering

Keizo INAGAKI; Yoshio KARASAWA

Spatial Optical Signal Processing Beam Forming Network for 2-Dimensional Beam Steering

Keizo INAGAKI, Yoshio KARASAWA

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In this paper, an optical signal processing beam forming network (BFN) for two-dimensional (2-D) beam steering is proposed and experimentally demonstrated. Two lightwaves, called the signal and reference, are both Fourier transformed, combined, and then down-converted into RF signals using an optical heterodyne technique. A simple combination of orthogonal one-dimensional position scannings of the signal and reference lightwaves generates RF signals with phase distributions for 2-D beam steering. The system operation and optical losses are theoretically analyzed. Using graded index fiber (GIF) lensed single mode fibers (SMFs), total optical loss of the sampling fiber array is evaluated to be 4.5 dB from the fiber to fiber loss measurements. Using an experimental optical signal processing BFN at 25 GHz, 2-D beam steering is demonstrated at 0, 10, 20, and 30through the measured amplitudes and phases of RF signals for 16 position sets of the signal and reference fibers. The proposed method has the potential to provide ultra-fast beam scanning by utilizing optical switching technologies.

Publication: IEICE TRANSACTIONS on Electronics Vol.E86-C No.7 pp.1209-1217

Publication Date: 2003/07/01

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Type of Manuscript: Special Section PAPER (Special Issue on Recent Progress in Microwave and Millimeter-wave Photonics Technologies)

Category: Photonics for Antenna Systems

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Keizo INAGAKI, Yoshio KARASAWA, "Spatial Optical Signal Processing Beam Forming Network for 2-Dimensional Beam Steering" in IEICE TRANSACTIONS on Electronics, vol. E86-C, no. 7, pp. 1209-1217, July 2003, doi: .
Abstract: In this paper, an optical signal processing beam forming network (BFN) for two-dimensional (2-D) beam steering is proposed and experimentally demonstrated. Two lightwaves, called the signal and reference, are both Fourier transformed, combined, and then down-converted into RF signals using an optical heterodyne technique. A simple combination of orthogonal one-dimensional position scannings of the signal and reference lightwaves generates RF signals with phase distributions for 2-D beam steering. The system operation and optical losses are theoretically analyzed. Using graded index fiber (GIF) lensed single mode fibers (SMFs), total optical loss of the sampling fiber array is evaluated to be 4.5 dB from the fiber to fiber loss measurements. Using an experimental optical signal processing BFN at 25 GHz, 2-D beam steering is demonstrated at 0, 10, 20, and 30through the measured amplitudes and phases of RF signals for 16 position sets of the signal and reference fibers. The proposed method has the potential to provide ultra-fast beam scanning by utilizing optical switching technologies.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/e86-c_7_1209/_p

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@ARTICLE{e86-c_7_1209,
author={Keizo INAGAKI, Yoshio KARASAWA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Spatial Optical Signal Processing Beam Forming Network for 2-Dimensional Beam Steering},
year={2003},
volume={E86-C},
number={7},
pages={1209-1217},
abstract={In this paper, an optical signal processing beam forming network (BFN) for two-dimensional (2-D) beam steering is proposed and experimentally demonstrated. Two lightwaves, called the signal and reference, are both Fourier transformed, combined, and then down-converted into RF signals using an optical heterodyne technique. A simple combination of orthogonal one-dimensional position scannings of the signal and reference lightwaves generates RF signals with phase distributions for 2-D beam steering. The system operation and optical losses are theoretically analyzed. Using graded index fiber (GIF) lensed single mode fibers (SMFs), total optical loss of the sampling fiber array is evaluated to be 4.5 dB from the fiber to fiber loss measurements. Using an experimental optical signal processing BFN at 25 GHz, 2-D beam steering is demonstrated at 0, 10, 20, and 30through the measured amplitudes and phases of RF signals for 16 position sets of the signal and reference fibers. The proposed method has the potential to provide ultra-fast beam scanning by utilizing optical switching technologies.},
keywords={},
doi={},
ISSN={},
month={July},}

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TY - JOUR
TI - Spatial Optical Signal Processing Beam Forming Network for 2-Dimensional Beam Steering
T2 - IEICE TRANSACTIONS on Electronics
SP - 1209
EP - 1217
AU - Keizo INAGAKI
AU - Yoshio KARASAWA
PY - 2003
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E86-C
IS - 7
JA - IEICE TRANSACTIONS on Electronics
Y1 - July 2003
AB - In this paper, an optical signal processing beam forming network (BFN) for two-dimensional (2-D) beam steering is proposed and experimentally demonstrated. Two lightwaves, called the signal and reference, are both Fourier transformed, combined, and then down-converted into RF signals using an optical heterodyne technique. A simple combination of orthogonal one-dimensional position scannings of the signal and reference lightwaves generates RF signals with phase distributions for 2-D beam steering. The system operation and optical losses are theoretically analyzed. Using graded index fiber (GIF) lensed single mode fibers (SMFs), total optical loss of the sampling fiber array is evaluated to be 4.5 dB from the fiber to fiber loss measurements. Using an experimental optical signal processing BFN at 25 GHz, 2-D beam steering is demonstrated at 0, 10, 20, and 30through the measured amplitudes and phases of RF signals for 16 position sets of the signal and reference fibers. The proposed method has the potential to provide ultra-fast beam scanning by utilizing optical switching technologies.
ER -