An all-optical gain-controlled amplifier for bidirectional transmission

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A novel all-optical gain-controlled (AOGQ bidirectional amplifier is proposed and demonstrated in a compact structure. The AOGC function using fiber Bragg grating (FBG) pairs controls both directional signals independently, and combinations of optical interleavers and isolators suppress Rayleigh backscattering (RB) noise. The amplifier achieves high and constant gain with a wide dynamic input signal range and low noise figure. The performance does not depend on the input signal conditions, whether static-state or transient signals, or whether there is symmetric or asymmetric data traffic on bidirectional transmission. Transmission comparison experiments between invariable symmetrical and random variable asymmetric bidirectional data traffic verify that the all-optical gain control and bidirectional amplification functions are successfully combined into this proposed amplifier.
Publisher
ELECTRONICS TELECOMMUNICATIONS RESEARCH INST
Issue Date
2006-02
Language
English
Article Type
Article
Keywords

DOPED FIBER AMPLIFIER; WDM TRANSMISSION; CLAMPED EDFAS; SYSTEMS; NETWORKS; NOISE

Citation

ETRI JOURNAL, v.28, no.1, pp.1 - 8

ISSN
1225-6463
URI
http://hdl.handle.net/10203/20944
Appears in Collection
EE-Journal Papers(저널논문)
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