Zero dead-zone OTDR with high-spatial resolution for short haul applications

被引：14

作者：

Feced, R

Farhadiroushan, M

Handerek, VA

机构：

[1] Dept. of Electron. and Elec. Eng., King's College London, London WC2R 2LS, Strand

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1997年 / 9卷 / 08期

关键词：

optical fiber measurements; Raman scattering;

D O I：

10.1109/68.605529

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The existence of dead-zones is an important drawback for optical time-domain reflectometers (OTDR), specially in short haul applications with a large number of optical components, In this letter, we present an OTDR system with high spatial resolution based on the time-correlated single photon counting (TC-SPC) technique. This system overcomes the dead-zone problem by monitoring the spontaneous Stokes Raman emission (SSRE) to avoid the intense Fresnel reflections, The high sensitivity of the TC-SPC technique (-120 dBm) permits a high-loss budget within reasonable measurement integration times.

引用

页码：1140 / 1142

页数：3

共 9 条

[1] HIGH-RESOLUTION AND HIGH-SENSITIVITY OPTICAL-TIME-DOMAIN REFLECTOMETER [J].