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Optics Communications

Predictions of quantum mechanics and stochastic electrodynamics in travelling wave second harmonic generation

M. K. Olsen, K. Dechoum, Lev I. Plimak

Published Apr 1, 2001• 26 citations
Publisher
DOI
10.1016/s0030-4018(01)01100-2

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We have analyzed squeezing of the fundamental field by means of traveling-wave, type-II phase-matched, secondharmonic generation, taking into account depletion of the fundamental field and phase mismatch between the fundamental and the harmonic fields. For the phase-matched case we show that the generated squeezing is S = 1 - gamma, where gamma is the harmonic conversion efficiency. In the case of a large phase-mismatch we have identified a new mechanism that generates squeezing. It is the nonlinear phase shift of the fundamental field that is due to the cascaded chi((2)) nonlinearity.