A laser-diode-pumped intracavity frequency-doubled Nd:YAP/KTP laser is presented. Over 110 mw of TEM00 single-frequency output power at 540-nm wavelength was obtained. The output green laser was employed to pump a semimonolithic nondegenerate optical parametric oscillator to produce intensity quantum correlated twin beams at 1080 nm, and the maximum quantum noise squeezing of 74% (5.9dB) on the intensity difference fluctuation between the twin beams is observed. The threshold was reduced and the stability was increased significantly when compared with similar lamp-pumped systems.
© 2002 Optical Society of America
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3560) Lasers and laser optics : Lasers, ring
(140.3580) Lasers and laser optics : Lasers, solid-state
(270.6570) Quantum optics : Squeezed states
Ruixiang Guo, Julien Laurat, Jiangrui Gao, Changde Xie, and Kunchi Peng, "Application of an All-Solid-State, Frequency-Doubled Nd:YAP Laser to the Generation of Twin Beams at 1080 nm," Appl. Opt. 41, 2304-2307 (2002)