Unidirectional and bidirectional feedback regenerative erbium-doped fiber amplifier

被引：3
|
作者：
Shah, NSM [1 ]
Teyo, TC [1 ]
Poopalan, P [1 ]
Ahmad, H [1 ]
机构：
[1] Univ Malaya, Photon Lab, Dept Phys, Kuala Lumpur 50603, Malaysia
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2002年 / 41卷 / 8B期
关键词：
erbium-doped fiber amplifier; regenerative amplifier; laser oscillation threshold; gain-clamping; injection-locking;
D O I：
10.1143/JJAP.41.L960
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this letter, the performance of a unidirectional feedback regenerative erbium-doped fiber amplifier (EDFA) is compared with that of a bidirectional feedback one. The systems operate above the laser oscillation threshold, and exhibit the gain-clamping effect. The experimental results show that the unidirectional system has a higher gain and a lower noise figure than the bidirectional system. At high input signals, an injection-locking phenomenon is observed and the resonant-amplification characteristic of regenerative amplifier vanishes.
引用
收藏
页码：L960 / L962
页数：3
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