Temporal Characteristics of Pulsed Squeezing in a Nonlinear Optical Waveguide

被引:1
作者
Eto, Yujiro [1 ,3 ]
Koshio, Akane [1 ]
Ohshiro, Akito [1 ]
Zhang, Yun [2 ]
Sasaki, Masahide [3 ]
Hirano, Takuya [1 ]
机构
[1] Gakushuin Univ, Dept Phys, Toshima Ku, Tokyo 1718588, Japan
[2] Univ Electrocommun, Dept Elect Engn, Chofu, Tokyo 1828585, Japan
[3] Natl Inst Informat & Commun Technol NICT, Koganei, Tokyo 1848795, Japan
关键词
D O I
10.7567/JJAP.52.048001
中图分类号
O59 [应用物理学];
学科分类号
摘要
We experimentally investigate the temporal characteristics of picosecond squeezed pulses generated via an optical parametric amplification in a periodically poled MgO:LiNbO3 waveguide. The noise variances for the various time delays between the squeezed pulse and a local oscillator are measured using a balanced homodyne detector. The measured delay dependence is asymmetric, and this asymmetry indicates that the phase chirping of the squeezed pulse is different from that of the local oscillator pulse. We show that the observed squeezing can be improved by using the pulse shaping of the local oscillator. (C) 2013 The Japan Society of Applied Physics
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页数:2
相关论文
共 4 条
[1]  
ANDERSON ME, 1995, OPT LETT, V20, P620, DOI 10.1364/OL.20.000620
[2]   Quantum information with continuous variables [J].
Braunstein, SL ;
van Loock, P .
REVIEWS OF MODERN PHYSICS, 2005, 77 (02) :513-577
[3]   Observation of quadrature squeezing in χ(2) nonlinear waveguide using a temporally shaped local oscillator pulse [J].
Eto, Yujiro ;
Tajima, Takashi ;
Zhang, Yun ;
Hirano, Takuya .
OPTICS EXPRESS, 2008, 16 (14) :10650-10657
[4]   Efficient homodyne measurement of picosecond squeezed pulses with pulse shaping technique [J].
Eto, Yujiro ;
Koshio, Akane ;
Ohshiro, Akito ;
Sakurai, Junichi ;
Horie, Keiko ;
Hirano, Takuya ;
Sasaki, Masahide .
OPTICS LETTERS, 2011, 36 (23) :4653-4655