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物理学报. 2008, 57(11): 6962-6967.
doi: 10.7498/aps.57.6962.
利用PPKTP晶体产生真空压缩态及其Wigner准概率分布函数的量子重构
- 收稿日期: 2008-03-19
- 修回日期: 2008-05-12
- 刊出日期: 2008-11-20
摘要: 通过光学腔内置周期极化磷酸氧钛晶体的连续光学参量振荡器，以532nm光场为抽运场，产生1064nm的真空压缩态光场，利用平衡零拍探测技术得到3.41dB的实测压缩度，并采用量子层析技术重构出真空压缩态光场在相空间的Wigner准概率分布函数.
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关键词:
- 真空压缩态光场 /
- 光学参量振荡器 /
- 量子层析 /
- Wigner准概率分布函数
English Abstract
Generation of squeezed vacuum states by PPKTP crystal and its Wigner quasi-probability distribution function reconstruction
- Received Date:
19 March 2008
- Accepted Date:
12 May 2008
- Published Online:
20 November 2008
Abstract: We demonstrated experimentally the generation of squeezed vacuum by a periodically poled KTP crystal in a continuous-wave optical parametric oscillator，which was pumped with 532nm field. The squeezed vacuum of 3.41 dB at 1064 nm was detected by a homodyne detection system. Moreover，the Wigner quasi-probability distribution function of the squeezed vacuum was reconstructed using quantum tomography technique.
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