Gain-shifted dual-wavelength-pumped thulium-doped fiber amplifier for WDM signals in the 1.48-1.51-micron wavelength region

We constructed a gain-shifted dual-wave-length-pumped (1.05/1.56 micron) thulium-doped fiber amplifier (TDFA) for wavelength-division-multiplexing (WDM) signals in the 1.48-1.51-micron wavelength region. We obtained a gain of larger than 20 dB and a noise figure of less than 7 dB in the range from 1...

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Bibliographic Details
Published in:IEEE photonics technology letters 2001-01, Vol.13 (1), p.31-33
Main Authors: Kasamatsu, Tadashi, Yano, Yutaka, Ono, Takashi
Format: Article
Language:English
Online Access:Get full text
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Summary:We constructed a gain-shifted dual-wave-length-pumped (1.05/1.56 micron) thulium-doped fiber amplifier (TDFA) for wavelength-division-multiplexing (WDM) signals in the 1.48-1.51-micron wavelength region. We obtained a gain of larger than 20 dB and a noise figure of less than 7 dB in the range from 1478 to 1505 nm. Amplifier saturated output power was +20.1 dBm with an optical-to-optical conversion efficiency of 9.1 percent for 12-channel WDM signals. We also obtained a successful bit error rate performance for signals modulated at 10 Gb/s when the gain-shifted TDFA was used in an optical preamplifier configuration. These results confirm the feasibility of using the gain-shifted TDFA as both a booster and an optical preamplifier in WDM networks. (Author)
ISSN:1041-1135