Effect of input phase modulation to a phase-sensitive optical amplifier

被引：8

作者：

Li, Tian ^{[1
,2
]}

Anderson, Brian E. ^{[1
,2
]}

Horrom, Travis ^{[1
,2
]}

Jones, Kevin M. ^{[3
]}

Lett, Paul D. ^{[1
,2
,4
]}

机构：

[1] NIST, Joint Quantum Inst, College Pk, MD 20742 USA

[2] Univ Maryland, College Pk, MD 20742 USA

[3] Williams Coll, Dept Phys, Williamstown, MA 01267 USA

[4] NIST, Quantum Measurement Div, Gaithersburg, MD 20899 USA

来源：

OPTICS EXPRESS | 2016年 / 24卷 / 17期

基金：

美国国家科学基金会;

关键词：

AMPLITUDE-MODULATION; CONVERSION;

D O I：

10.1364/OE.24.019871

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Many optical applications depend on amplitude modulating optical beams using devices such as acousto-optical modulators (AOMs) or optical choppers. Methods to add amplitude modulation (AM) often inadvertently impart phase modulation (PM) onto the light as well. While this PM is of no consequence to many phase-insensitive applications, phase-sensitive processes can be affected. Here we study the effects of input phase and amplitude modulation on the output of a quantum-noise limited phase-sensitive optical amplifier (PSA) realized in hot Rb-85 vapor. We investigate the dependence of PM on AOM alignment and demonstrate a novel approach to quantifying PM by using the PSA as a diagnostic tool. We then use this method to measure the alignment-dependent PM of an optical chopper which arises due to diffraction effects as the chopper blade passes through the optical beam. (C) 2016 Optical Society of America

引用

页码：19871 / 19880

页数：10

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