BIDIRECTIONAL TRANSMISSION AT 622 MB/S UTILIZING ERBIUM-DOPED FIBER AMPLIFIERS

被引：17

作者：

HAUGEN, J

FREEMAN, J

CONRADI, J

机构：

[1] Telecommunications Research Labs., (TRLabs), Edmonton, Alta.

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1992年 / 4卷 / 08期

关键词：

D O I：

10.1109/68.149907

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：

Amplification of two bidirectional 622 Mb / s optical signals is demonstrated using a single erbium-doped fiber amplifier. Bidirectional amplification is examined with the EDFA operating as a midspan repeater and as a pre / post amplifier at one terminal end of a 95 km fiber span. Without using any isolators in the EDFA, bidirectional optical amplification through a single EDFA is achieved while simultaneously improving system gain relative to an unidirectional link without an EDFA. The system gain improvement is 9.5 and 7 dB in the pre / post configuration and 25.5 and 20.3 dB in the midspan configuration when the signal wavelengths are 1537 and 1545 nm, respectively.

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收藏

页码：913 / 916

页数：4

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