Influence of pumping laser bandwidth on the quantum fluctuation chracteristic of non-degenerate optical parametric amplifier

doi:10.1088/1674-1056/21/7/070308

中国物理B ›› 2012, Vol. 21 ›› Issue (7): 70308-070308.doi: 10.1088/1674-1056/21/7/070308

Influence of pumping laser bandwidth on the quantum fluctuation chracteristic of non-degenerate optical parametric amplifier

赵超樱, 叶兴珍, 杨成峰, 陈丽娅

The College of Science, Hangzhou Dianzi University, Hangzhou 310018, China

收稿日期:2011-11-24 修回日期:2011-12-26 出版日期:2012-06-01 发布日期:2012-06-01

Influence of pumping laser bandwidth on the quantum fluctuation chracteristic of non-degenerate optical parametric amplifier

Zhao Chao-Ying(赵超樱)^†, Ye Xing-Zhen(叶兴珍), Yang Cheng-Feng(杨成峰), and Chen Li-Ya(陈丽娅)

The College of Science, Hangzhou Dianzi University, Hangzhou 310018, China

Received:2011-11-24 Revised:2011-12-26 Online:2012-06-01 Published:2012-06-01
Contact: Zhao Chao-Ying E-mail:zchy49@sohu.com

摘要/Abstract

摘要： Usually the quantum fluctuation characteristic of the non-degenerate optical parametric amplifier is analysed under the assumption of monochromatic pumping. However, in experiments, the driving beam with finite bandwidth is used to obtain the non-degenerate signal and idler beam amplifications. On account of that, we derive an analytical solution for the non-degenerate optical parametric amplification system with finite bandwidth laser pumping, and evaluate the associated quantum fluctuation. Finally, the application of the V₁ criterion to the bipartite entanglement is discussed.

关键词: pumping laser bandwidth, squeezing, entanglement

Abstract: Usually the quantum fluctuation characteristic of the non-degenerate optical parametric amplifier is analysed under the assumption of monochromatic pumping. However, in experiments, the driving beam with finite bandwidth is used to obtain the non-degenerate signal and idler beam amplifications. On account of that, we derive an analytical solution for the non-degenerate optical parametric amplification system with finite bandwidth laser pumping, and evaluate the associated quantum fluctuation. Finally, the application of the V₁ criterion to the bipartite entanglement is discussed.

Key words: pumping laser bandwidth, squeezing, entanglement

中图分类号: (Entanglement and quantum nonlocality)

03.65.Ud

42.50.Lc (Quantum fluctuations, quantum noise, and quantum jumps) 42.65.Yj (Optical parametric oscillators and amplifiers)

赵超樱, 叶兴珍, 杨成峰, 陈丽娅 . Influence of pumping laser bandwidth on the quantum fluctuation chracteristic of non-degenerate optical parametric amplifier[J]. 中国物理B, 2012, 21(7): 70308-070308.

Zhao Chao-Ying(赵超樱), Ye Xing-Zhen(叶兴珍), Yang Cheng-Feng(杨成峰), and Chen Li-Ya(陈丽娅) . Influence of pumping laser bandwidth on the quantum fluctuation chracteristic of non-degenerate optical parametric amplifier[J]. Chin. Phys. B, 2012, 21(7): 70308-070308.

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Influence of pumping laser bandwidth on the quantum fluctuation chracteristic of non-degenerate optical parametric amplifier

Influence of pumping laser bandwidth on the quantum fluctuation chracteristic of non-degenerate optical parametric amplifier

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