量子光学学报, 2018, 24 (1): 14, 网络出版: 2018-09-06
实验制备光通信波段1.34 μm高纯度的压缩态
Experimental Generation of a Pure Squeezed State at Telecommunication Wavelength of 1.34 μm
压缩态 薛定谔猫态 光学参量振荡器 光通信波段1.34 μm Squeezed state Schrdinger cat state Optical parametric oscillator Telecommunication Wavelength of 1.34 μm
摘要
本文利用周期极化磷酸氧钛钾晶体构成的光学参量振荡器实验制备了光通信波段1.34 μm纯度为0.993的真空压缩态光场,压缩态光场的压缩度为2.98 dB、反压缩度为3.04 dB。高纯度的真空压缩态光场可为制备光通信波段高保真度的薛定谔猫态提供量子光源。
Abstract
A squeezed vacuum state telecommunication wavelength of 1.34 μm with a purity of 0.993 is demonstrated from a semi-monolithic degenerate optical parametric oscillator (DOPO) based on a periodically poled KTiOPO4 crystal. The measured squeezing of 2.98 dB with anti-squeezing of 3.04 dB is achieved. The generated squeezed vacuum state with high purity will be a good quantum resource for the preparation of Schrdinger cat state with high fidelity.
杜京师, 冯晋霞, 马亚云, 李渊骥, 张宽收. 实验制备光通信波段1.34 μm高纯度的压缩态[J]. 量子光学学报, 2018, 24(1): 14. DU Jing-shi, FENG Jin-xia, MA Ya-yun, LI Yuan-ji, ZHANG Kuan-shou. Experimental Generation of a Pure Squeezed State at Telecommunication Wavelength of 1.34 μm[J]. Acta Sinica Quantum Optica, 2018, 24(1): 14.
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