Dispersion management and gain flattened a hybrid EDFA/RFA with pumping recycling mechanism

Author

Liaw, Shien-Kuei ; Huang, Yu-Sheng ; Hung, Hsin-Kai ; Chen, Nan-Kuang ; Hsu, Kuei-Chu ; Yu, Yi-Lin ; Wang, Ting ; Manshina, A. ; Yanovic, Y. Tver

Author_Institution

Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan

fYear

2010

fDate

18-20 Oct. 2010

Firstpage

1039

Lastpage

1041

Abstract

We propose a hybrid C+L band fiber amplifier loop-back scheme. It is composed of a C-band erbium-doped fiber amplifier (EDFA) and an L-band Raman fiber amplifier (RFA) using double-pass dispersion compensators in a loop-back scheme. Dispersion slope mismatch precisely compensates for all C+L band channels by writing fiber Bragg gratings (FBGs) at appropriate locations. Gain variation among multiple channels can be reduced from 6.5 dB to ±0.2 dB. The pump efficiency is improved by recycling the residual pump power. The hybrid EDFA/RFA may find vast applications in WDM long-haul systems and optical networks.

Keywords

amplifiers; optical fibre networks; pumps; recycling; wavelength division multiplexing; C+L band fiber amplifier loop-back scheme; L-band Raman fiber amplifier; WDM long-haul systems; dispersion management; double-pass dispersion; fiber Bragg gratings; hybrid EDFA/RFA; optical networks; pumping recycling mechanism; Artificial neural networks; Integrated circuits; Optical fiber dispersion; Stimulated emission; dispersion compensation; fiber Bragg grating; fiber amplifier; gain equalization; optical communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2010 International Congress on

Conference_Location

Moscow

ISSN

2157-0221

Print_ISBN

978-1-4244-7285-7

Type

conf

DOI

10.1109/ICUMT.2010.5676503

Filename

5676503