Efficient generation of highly squeezed light with periodically poled MgO:LiNbO3.
We report on efficient generation of continuous-wave squeezed light and second harmonics with a periodically poled MgO:LiNbO(3) (PPMgLN) crystal which enables us to utilize the large nonlinear optical coefficient d(33). We achieved the squeezing level of -7.60+/-0.15 dB at 860 nm by utilizing a subthreshold optical parametric oscillator with a PPMgLN crystal. We also generated 400 mW of second harmonics at 430 nm from 570 mW of fundamental waves with 70% of conversion efficiency by using a PPMgLN crystal inside an external cavity.
Masada
Genta
G
1Department of Applied Physics, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. g.masada@lab.tamagawa.ac.jp
Suzudo
Tsuyoshi
T
Satoh
Yasuhiro
Y
Ishizuki
Hideki
H
Taira
Takunori
T
Furusawa
Akira
A