Phase noise elimination in frequency sweeping interferometry based on a common-path interferometer

被引：4

作者：

Lin, Cuofu ^{[1
]}

Zou, Chen ^{[1
]}

Mou, Tieliang ^{[1
]}

Zhu, Yunlong ^{[1
,2
]}

Dang, Fanyang ^{[1
,2
]}

Yu, Zhangjun ^{[3
,4
]}

Yuan, Yonggui ^{[1
,2
]}

Yang, Jun ^{[3
,4
]}

Wang, Yuncai ^{[3
,4
]}

Qin, Yuwen ^{[3
,4
]}

机构：

[1] Harbin Engn Univ, Coll Phys & Optoelect Engn, Harbin 150001, Peoples R China

[2] Harbin Engn Univ, Key Lab Fiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R China

[3] Guangdong Univ Technol, Sch Informat Engn, Guangzhou 510006, Peoples R China

[4] Guangdong Prov Key Lab Photon Informat Technol, Guangzhou 510006, Peoples R China

来源：

OPTICS LETTERS | 2022年 / 47卷 / 18期

基金：

中国国家自然科学基金;

关键词：

RANGE;

D O I：

10.1364/OL.468996

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a common-path interferometer (CPI) method to suppress the ambient and laser phase noise in frequency sweeping interferometry. The CPI realizes the multiplexing of the main and auxiliary interferometer to ensure the common-mode characteristic of the interference phase noise, which can be eliminated by signal mixing. In experiments, we obtain a dynamic range of up to 110dB. Compared with the compensation method using a separated auxiliary interferometer, the CPI method improves the dynamic range by 10 dB and is immune to ambient noise. The proposed method enables high-precision distributed polarization measurements of optical fibers and devices. (C) 2022 Optica Publishing Group

引用

页码：4810 / 4813

页数：4

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