Theoretical analysis of squeezed light generation and conversion by traveling-wave nonlinear-optic devices

A theoretical analysis based on the fluctuation propagation matrix method p roposed by the authors has been performed for systematic study of the gener ation and conversion of squeezed light in various traveling-wave second-ord er nonlinear-optic devices. The important insights obtained are: (1) Second -harmonic generation (SHG) allows generation of a highly squeezed fundament al wave, and a highly amplitude squeezed harmonic wave can be obtained by p umping with amplitude-squeezed fundamental wave. (2) Degenerate optical par ametric (de)amplification (DOPA and DOPDA) allow generation of squeezed vac uum states and substantial amplitude/phase squeezing of the signal wave. (3 ) Sum- and difference-frequency generation (SFG and DFG) using a strong pum p wave allow wavelength conversion of squeezed light. The results are given in graphic form using normalized parameters which can readily be correlate d to device parameters. (C) 1999 Scripta Technica.