Application of an all-solid-state, frequency-doubled Nd:YAP laser to the generation of twin beams at 1080 nm.
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.
Guo
Ruixiang
R
The State Key Laboratory of Quantum Optics and Quantum Optical Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan, China. guorx@sxu.edu.cn
Laurat
Julien
J
Gao
Jiangrui
J
Xie
Changde
C
Peng
Kunchi
K