FEMTOSECOND QUADRATURE-SQUEEZED LIGHT GENERATION IN CDSE AT 1.55 MU-M

We generated pulsed quadrature-squeezed Light by cross-phase modulatio n in single-crystal hexagonal CdSe at wavelengths of 1.4 to 1.55 mu m. We measured 0.4-dB squeezing (0.7 dB is inferred at the crystal) with 100-fs laser pulses. The wavelength and the intensity dependence, as well as variations in the local oscillator configuration, are examined . At higher intensities squeezing is shown to deteriorate owing to com peting nonlinear processes. (C) 1998 Optical Society of America.