A phase-sensitive optical time-domain reflectometer with dual-pulse phase modulated probe signal

被引：75

作者：

Alekseev, A. E. ^{[1
,2
]}

Vdovenko, V. S. ^{[2
]}

Gorshkov, B. G. ^{[3
]}

Potapov, V. T. ^{[1
]}

Simikin, D. E. ^{[2
]}

机构：

[1] Russian Acad Sci, Kotelnikov Inst Radio Engn & Elect, Fryazino, Moscow Region, Russia

[2] Petrofibre Ltd, Novomoskovsk, Tula Region, Russia

[3] Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow, Russia

来源：

LASER PHYSICS | 2014年 / 24卷 / 11期

关键词：

optical time domain reflectometry; fiber optics sensors; phase modulation; backscattering; phase diversity; FADING NOISE; FIBER; INTERFEROMETER; REDUCTION; SCHEME; OTDR;

D O I：

10.1088/1054-660X/24/11/115106

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel configuration of a phase-sensitive optical time-domain reflectometer (OTDR) utilizing dual-pulse phase modulations of the probe signal is presented and experimentally demonstrated. The proposed modulation method enables one to perform the demodulation and reconstruction of an external perturbation signal which impacts the fiber using the phase diversity technique. The proposed phase-sensitive OTDR has some advantages in comparison with conventional solutions, which are discussed. The feasibility of a double pulse OTDR with phase modulation is demonstrated and theoretically proved.

引用

页数：5

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