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Squeezed amplification in a nondegenerate parametric amplifier

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Abstract

A linearized quantum analysis of an injection-seeded optical parametric amplifier is presented. When the amplifier is operated in a saturated gain regime, the amplified output intensity of the injected coherent-state signal becomes amplitude squeezed, and the signal-to-noise ratio improves. Above threshold, an injection-seeded parametric oscillator is found to generate more single-beam squeezing than an unseeded one. An amplitude-squeezed pump is shown to yield even better results.

© 1991 Optical Society of America

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