1.58 μm band fluoride-based Er3+-doped fibre amplifier for WDM transmission systems

被引：12

作者：

Ono, H ^{[1
]}

Yamada, M ^{[1
]}

Kanamori, T ^{[1
]}

Sudo, S ^{[1
]}

Ohishi, Y ^{[1
]}

机构：

[1] NTT Corp, Optoelect Labs, Tokai, Ibaraki 31911, Japan

来源：

ELECTRONICS LETTERS | 1997年 / 33卷 / 17期

关键词：

fibre amplifiers; wavelength division multiplexing;

D O I：

10.1049/el:19970987

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：

An Er3+-doped fluoride-based fibre amplifier (F-EDFA) with flat amplification characteristics in the range 1565-1600nm was constructed for the first time. This provided a 5 nm wider flat amplification range than a silica-based Er3+-doped fibre amplifier (S-EDFA). A flattened signal gain of 30 dB was achieved with a gain excursion of 0.9dB for a WDM signal in this wavelength range. The Er3+-doped fluoride fibre (F-EDF) which achieved a signal gain of over 30dB without any noise figure degradation had a shorter optimum length than Er3+-doped silica fibre (S-EDF). Furthermore, F-EDF extended the amplification wavelength in the longer wavelength range by 2nm compared with S-EDF.

引用

页码：1471 / 1472

页数：2

共 8 条

[1]

KANAMORI T, 1994, 9TH INT S NON GLASS, P74

[2] LOW-NOISE OPERATION OF ER3+ DOPED SILICA FIBER AMPLIFIER AROUND 1.6-MU-M [J].