Detection and perfect fitting of 13.2 dB squeezed vacuum states by considering green-light-induced infrared absorption

被引：58

作者：

Shi, Shaoping ^{[1
,2
]}

Wang, Yajun ^{[1
,2
]}

Yang, Wenhai ^{[1
,2
]}

Zheng, Yaohui ^{[1
,2
]}

Peng, Kunchi ^{[1
,2
]}

机构：

[1] Shanxi Univ, Inst Optoelect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Shanxi, Peoples R China

[2] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China

来源：

OPTICS LETTERS | 2018年 / 43卷 / 21期

基金：

中国国家自然科学基金;

关键词：

OPTICAL PARAMETRIC OSCILLATOR; GRAVITATIONAL-WAVE DETECTORS; QUANTUM-NOISE REDUCTION; GENERATION; FLUCTUATIONS; AMPLIFIER; NM;

D O I：

10.1364/OL.43.005411

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on a high-level squeezed vacuum state with maximum quantum noise reduction of 13.2 dB directly detected at the pump power of 180 mW. The pump power dependence of the squeezing factor is experimentally exhibited. When considering only loss and phase fluctuation, the fitting results have a large deviation from the measurement value near the threshold. By integrating green-lightinduced infrared absorption (GLIIRA) loss, the squeezing factor can be perfectly fitted in the whole pump power range. The result indicates that GLIIRA loss should be thoroughly considered and quantified in the generation of high-level squeezed states. (C) 2018 Optical Society of America

引用

页码：5411 / 5414

页数：4

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