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Optical Engineering

Phasar Nonlinear Optical Experimentation: Phased Far-Field Return From Multiple Telescopes By Optical Wavefront Reversal Of A Reference Signal
Author(s): A. Klemas; M. Kramer; Richard A. Carreras; C. Clayton
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Paper Abstract

A multiple telescope array, Phasar, is used to collect light for a phase-conjugate mirror of barium titanate, forming a hybrid receiving/ transmitting system. The observed fidelity of the system output is independent of the type and amount of aberration introduced into the optical path. In all test cases, the measured far-field peak intensity indicates that the fidelity of the return from the three telescopes approaches the fidelity required to yield the ideal in-phase superposition of waves in the far field. The system demonstrates high fidelity phase conjugation for a telescope piston mismatch of up to ±5 Am, for tilt error up to ±700 grad, and for higher order aberrations. A scheme implemented to compensate for depolarizing and polarization-altering effects boosts the amplitude of the point spread function considerably. Near-field diagnostics confirm the fidelity of the phase-conjugate output.

Paper Details

Date Published: 1 September 1988
PDF: 8 pages
Opt. Eng. 27(9) 279722 doi: 10.1117/12.7976751
Published in: Optical Engineering Volume 27, Issue 9
Show Author Affiliations
A. Klemas, Air Force Weapons Laboratory (United States)
M. Kramer, Air Force Weapons Laboratory (United States)
Richard A. Carreras, Air Force Weapons Laboratory (United States)
C. Clayton, Air Force Weapons Laboratory (United States)

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