Twin beams correlation and single beam noise for triply resonant KTP OPOs

摘要: Triply resonant optical parametric oscillations (TRO) are of interest for generating stable and highly correlated twin beams. Here we report intensity noise correlation single beam spectra pump powers up to 14 times the threshold value. The spectrum appear be independent power while beams exhibit a peak due relaxation oscillation. Such resonance contributes mask squeezing predicted double devices. herein discussed TRO has shown temporal stability longer than 6 h delivering 4 mW per beam, fluctuating less 5% over periods half an hour.