OTDR IN OPTICAL-TRANSMISSION SYSTEMS USING ER-DOPED FIBER AMPLIFIERS CONTAINING OPTICAL CIRCULATORS

被引：24

作者：

SATO, Y

AOYAMA, K

机构：

[1] NTT Transmission Systems Laboratories, Kanagawa

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1991年 / 3卷 / 11期

关键词：

D O I：

10.1109/68.97841

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：

Fault location in optical amplifier transmission systems is described. OTDR cannot be used for an optical transmission line containing traditional Er-doped fiber amplifiers (EDFA's) because they contain optical isolators. We propose an OTDR scheme that uses new EDFA's containing optical circulators and return transmission lines. The new EDFA's support both OTDR and digital signal transmission. OTDR fault location is demonstrated in a 1.8 Gb/s signal transmission line. The 280.9 km transmission line contains three new EDFA's.

引用

页码：1001 / 1003

页数：3

共 8 条

[1] OPTICAL-TIME DOMAIN REFLECTOMETRY IN A SINGLE-MODE FIBER [J].