Phasar Nonlinear Optical Experimentation: Phased Far-Field Return From Multiple Telescopes By Optical Wavefront Reversal Of A Reference Signal

A. Klemas; M. Kramer; Richard A. Carreras; C. Clayton

doi:10.1117/12.7976751

1 September 1988 Phasar Nonlinear Optical Experimentation: Phased Far-Field Return From Multiple Telescopes By Optical Wavefront Reversal Of A Reference Signal

A. Klemas, M. Kramer, Richard A. Carreras, C. Clayton

Author Affiliations +

Optical Engineering, Vol. 27, Issue 9, 279722 (September 1988). https://doi.org/10.1117/12.7976751

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.

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A. Klemas, M. Kramer, Richard A. Carreras, and C. Clayton "Phasar Nonlinear Optical Experimentation: Phased Far-Field Return From Multiple Telescopes By Optical Wavefront Reversal Of A Reference Signal," Optical Engineering 27(9), 279722 (1 September 1988). https://doi.org/10.1117/12.7976751

Published: 1 September 1988

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