The Squeeze of Closed  loop Photocurrent Fluctuation below the  Theoretical Limit Given by Quantum Demolition Measurement

Yin Jianping

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The Squeeze of Closed loop Photocurrent Fluctuation below the Theoretical Limit Given by Quantum Demolition Measurement

更新时间：2025-12-08

- The Squeeze of Closed loop Photocurrent Fluctuation below the Theoretical Limit Given by Quantum Demolition Measurement
- Acta Electronica Sinica Issue 2, (1999)
- 作者机构：
  
  1. 苏州大学物理系
  2. 中科院上海光机所量子光学开放实验室
  3. 苏州大学物理系中科院上海光机所量子光学开放实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN201
- Published：1999
- 稿件说明：
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[1]印建平,王育竹.低于量子破坏性测量理论极限的闭环光电流噪声压缩[J].电子学报,1999(02):49-52.

Yin Jianping. The Squeeze of Closed loop Photocurrent Fluctuation below the Theoretical Limit Given by Quantum Demolition Measurement[J]. Acta Electronica Sinica, 1999, (2).
[1]印建平,王育竹.低于量子破坏性测量理论极限的闭环光电流噪声压缩[J].电子学报,1999(02):49-52. DOI：

Yin Jianping. The Squeeze of Closed loop Photocurrent Fluctuation below the Theoretical Limit Given by Quantum Demolition Measurement[J]. Acta Electronica Sinica, 1999, (2). DOI：

摘要

采用光电流负反馈技术，分别在半导体发光／激光器件（ＬＥＤ／ＬＤ）和可调谐染料激光中产生并观察到压缩量为－１３ｄＢ，－１４８ｄＢ和－８９ｄＢ的闭环光电流噪声压缩．这些实验结果均已突破由量子破坏性测量（即由量子不完善性或光电探测器量子效率不为１）所给出的理论极限，为传统的量子测量理论所无法解释．文章采用光电流或光场反相关态的概念，正确解释了这一实验现象．

Abstract

In terms of the technology of photocurrent negative feedback

the squeeze of closed loop photocurrent fluctuation with -13dB

-14 8dB and -8 9dB squeezing in semiconductor devices （LED/LD） and tunable dye laser has been respectively generated and observed.These results have broken through the theoretical limit given by quantum demolition measurement

and can not be explained by the traditional quantum measurement theory.We employ the concept on anticorrelation state of photocurrent or light field

and correctly explain the above experimental phenomenon.

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