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High gain low noise L-band preamplifier with cascade double-pass structure

โœ Scribed by Dongfang Jia; Yanyong Wang; Huanmin Bao; Tianxin Yang; Shichen Li


Book ID
115367217
Publisher
Optics InfoBase
Year
2005
Tongue
English
Weight
174 KB
Volume
3
Category
Article
ISSN
1671-7694

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## Abstract A new doubleโ€pass longโ€wavelengthโ€band erbiumโ€doped fiber amplifier with enhanced noise figure characteristics is demonstrated by adding a short length of forward pumped erbiumโ€doped fiber (EDF) in front of the doubleโ€pass amplifier. By adding 7 m of EDF, the amplifier achieves a flatโ€g