Proceedings PaperNonlinear Phase Conjugation For Wavefront Control
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This paper presents a selective review of the use of nonlinear phase conjugation for wavefront control in laser systems. Nonlinear methods for producing a phase conjugate beam are described, and a selection of laser system concepts utilizing nonlinear phase conjugation are discussed. The key issues affecting beam quality and extraction efficiency in phase conjugated systems include phase conjugation fidelity, phase conjugate mirror efficiency and threshold, suppression of amplified spontaneous emission, the interaction of amplifier gain saturation with phase conjugation, and birefringence.