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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 10 — Apr. 1, 1998
  • pp: 1720–1730

Far-field pattern measurement of an onboard laser transmitter by use of a space-to-ground optical link

Morio Toyoshima and Kenichi Araki  »View Author Affiliations


Applied Optics, Vol. 37, Issue 10, pp. 1720-1730 (1998)
http://dx.doi.org/10.1364/AO.37.001720


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Abstract

The far-field pattern of an onboard laser transmitter was measured with a transatmospheric optical link with a distance of ∼33,000 km between the satellite and the optical ground station. The far-field pattern was acquired with a new method used to analyze statistically downlink irradiance data obtained at the ground station. The statistical tracking and pointing characteristics of the transmitter were taken into account in estimating downlink irradiance, assuming that there were no atmospheric scintillation effects. The peak directive gain of the downlink laser beam was 104.3 dB. The beam width (full width at half-maximum) was 28.5 × 17.5 μrad. These results were consistent with the results from a laboratory test undertaken before launch of the satellite.

© 1998 Optical Society of America

OCIS Codes
(060.4510) Fiber optics and optical communications : Optical communications
(140.0140) Lasers and laser optics : Lasers and laser optics

History
Original Manuscript: July 29, 1997
Revised Manuscript: November 4, 1997
Published: April 1, 1998

Citation
Morio Toyoshima and Kenichi Araki, "Far-field pattern measurement of an onboard laser transmitter by use of a space-to-ground optical link," Appl. Opt. 37, 1720-1730 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-10-1720


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