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

• GENERAL • 上一篇    下一篇

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   

  1. 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)   

  1. 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: 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)