System design of a wavefront sensing package for a wide field of view optical phased array

Details System design of a wavefront sensing package for a wide field of view optical phased array System design of a wavefront sensing package for a wide field of view optical phased array

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988opten..27..785g&link_type=abstract

Optical Engineering (ISSN 0091-3286), vol. 27, Sept. 1988, p. 785-792.

Physics

2

Field Of View, Phased Arrays, Systems Engineering, Telescopes, Wave Fronts, Diffraction Patterns, Feedback Control, Phase Control, Pointing Control Systems

Scientific paper

This paper discusses the system design of a wavefront sampling system for a four-telescope optical phased array. This sampling system provides the input to an electromechanical feedback control system that dynamically phases the telescope array. Design solutions that provide the necessary wavefront sensing for a feedback control system are discussed. The overall system design concentrates on simplicity despite the number of channels, while the optical design embodies a philosophy of invariance to field of view, the use of the first-order optical properties of the entrance/exit pupil relationship, and the exploitation of beam polarization for power conservation and electrooptical chopping.

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