QUANTUM-EFFICIENCY OF PRASEODYMIUM DOPED GALAS GLASS FOR 1.3 MU-M OPTICAL-FIBER AMPLIFIERS

被引：76

作者：

HEWAK, DW ^{[1
]}

NETO, JAM ^{[1
]}

SAMSON, B ^{[1
]}

BROWN, RS ^{[1
]}

JEDRZEJEWSKI, KP ^{[1
]}

WANG, J ^{[1
]}

TAYLOR, E ^{[1
]}

LAMING, RI ^{[1
]}

WYLANGOWSKI, G ^{[1
]}

PAYNE, DN ^{[1
]}

机构：

[1] UNIV SOUTHAMPTON,DEPT PHYS,SOUTHAMPTON SO9 5NH,HANTS,ENGLAND

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1994年 / 6卷 / 05期

关键词：

D O I：

10.1109/68.285556

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 gain of Pr3+-doped ZBLAN fibre amplifiers is hindered by a poor quantum efficiency due mainly to a high rate of multiphonon decay. Sulphide-based glasses ameliorate this problem through a higher radiative rate and lower non-radiative rate. In this letter, Pr3+-doped Ga:La:S glass has been evaluated spectroscopically in bulk and fibre form for its quantum-efficiency at 1.3 microns. Measurements reveal that absorption bands are broadened and the effective separation between the 1G4 and F-3(4) level is reduced compared to ZBLAN glass. Judd-Ofelt analysis and the theory of multiphonon-decay now predict efficiencies of 80%, while 58% is measured. Oxide impurities are shown to play a key role in quenching of the radiative emission.

引用

页码：609 / 612

页数：4

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