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Proceedings Paper

Ultrahigh-speed optical-beam steering by optical phased array antenna
Author(s): Keizo Inagaki; Yoshio Karasawa
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Paper Abstract

Presented in this paper is an introduction of a fiber-type optical phased array antenna for free- space optical communications. Optical phased array antenna is a phased array antenna operated at optical frequency. The high speed beam steering, spatial power combining, and flexible beam forming characteristics of them will drastically improve the performance of future free-space optical communication systems. The system design of a fiber-type optical phased array which can steer an optical beam in 2-dimension is reviewed. Fundamental characteristics of the integrated optical beam forming network (BFN) are shown. The wide bandwidth response up to 924 MHz of optical phase shifters, which enables high speed beam steering, is highlighted. Radiation patterns demonstrate coherent spacial power combining.

Paper Details

Date Published: 22 April 1996
PDF: 8 pages
Proc. SPIE 2699, Free-Space Laser Communication Technologies VIII, (22 April 1996); doi: 10.1117/12.238413
Show Author Affiliations
Keizo Inagaki, ATR Optical and Radio Communications Research Labs. (Japan)
Yoshio Karasawa, ATR Optical and Radio Communications Research Labs. (Japan)

Published in SPIE Proceedings Vol. 2699:
Free-Space Laser Communication Technologies VIII
G. Stephen Mecherle, Editor(s)

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