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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 33, Iss. 18 — Jun. 20, 1994
  • pp: 3820–3830

Experimental demonstration of an optical phased array antenna for laser space communications

Wolfgang M. Neubert, Klaus H. Kudielka, Walter R. Leeb, and Arpad L. Scholtz  »View Author Affiliations


Applied Optics, Vol. 33, Issue 18, pp. 3820-3830 (1994)
http://dx.doi.org/10.1364/AO.33.003820


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Abstract

The feasibility of an optical phased array antenna applicable for spaceborne laser communications was experimentally demonstrated. Heterodyne optical phase-locked loops provide for a defined phase relationship between the collimated output beams of three single-mode fibers. In the far field the beams interfere with a measured efficiency of 99%. The main lobe of the interference pattern can be moved by phase shifting the subaperture output beams. The setup permitted agile beam steering within an angular range of 1 mr and a response time of 0.7 ms. We propose an operational optical phased array antenna fed by seven lasers, featuring high transmit power and redundance.

© 1994 Optical Society of America

History
Original Manuscript: March 3, 1993
Revised Manuscript: October 12, 1993
Published: June 20, 1994

Citation
Wolfgang M. Neubert, Klaus H. Kudielka, Walter R. Leeb, and Arpad L. Scholtz, "Experimental demonstration of an optical phased array antenna for laser space communications," Appl. Opt. 33, 3820-3830 (1994)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-33-18-3820

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