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Proceedings Paper

Far-field pattern measurement of on-board laser communication equipment by free-space laser transmission simulator
Author(s): Keizo Inagaki; Mitsuo Nohara; Yoshinori Arimoto; Masayuki Fujise; Yoji Furuhama; Seiji Kanda; Kenichi Araki
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Paper Abstract

We measured far-field patterns of on-board laser communication equipment (LCE) using a free-space laser transmission simulator. The LCE was developed by Communications Research Laboratories (CRL) for basic optical communications experiments using the Japan's Engineering Test Satellite-VI (ETS-VI), while the free-space simulator is being developed by ATR as an on-ground test system for laser communication terminals. Far-field patterns of an on-board laser communication terminal have measured experimentally by an on-ground test system for the first time. The LCE emitted a laser beam whose peak directive gain was 104.6 dB and whose beamwidth was 31 X 19 (mu) rad in full-width at half-maximum. It was confirmed that the transmitted beam of the LCE met the experimental requirements. Through the measurement, the free-space laser transmission simulator demonstrated its effectiveness in an on-ground measurement of the beam characteristics of a laser communication terminal.

Paper Details

Date Published: 6 August 1993
PDF: 12 pages
Proc. SPIE 1866, Free-Space Laser Communication Technologies V, (6 August 1993); doi: 10.1117/12.149258
Show Author Affiliations
Keizo Inagaki, ATR Optical and Radio Communications Research Labs. (Japan)
Mitsuo Nohara, ATR Optical and Radio Communications Research Labs. (Japan)
Yoshinori Arimoto, ATR Optical and Radio Communications Research Labs. (Japan)
Masayuki Fujise, ATR Optical and Radio Communications Research Labs. (Japan)
Yoji Furuhama, ATR Optical and Radio Communications Research Labs. (Japan)
Seiji Kanda, Toshiba Corp. (Japan)
Kenichi Araki, Ministry of Posts and Telecommunications (Japan)


Published in SPIE Proceedings Vol. 1866:
Free-Space Laser Communication Technologies V
G. Stephen Mecherle, Editor(s)

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