Title :
Enhancing Optical Signal-to-Noise Ratio in Terrestrial Cascaded EDFAs Fiber Optic Communication Links using Hybrid Fiber Amplifier
Author :
Van, Tuan Nguyen ; Viet, Hong Do
Author_Institution :
Dept. of Electron. & Telecommun. Eng., Univ. of Danang, Danang, Vietnam
Abstract :
In this paper, we propose calculating models of Terrestrial DWDM cascaded EDFAs Fiber Optic Communication Links using Hybird Fiber Amplifier (HFA) including combination of Distributed Raman Amplifier (DRA) and EDFA, and build algorithm charts to optimize parameters including signal power per channel launched fiber, EDFAs gain, pump power of Raman amplifier for improving optical Signal-to-Noise ratio (OSNR) at the end of link. Then, algorithm-based numerical calculating (MathCAD program) is applied in typical system (WDM Nation-wide links in Vietnam). Optimized results show that the OSNR can be increased by (1-5) dB comparing with that in cases of parameters chosen by experience way.
Keywords :
Raman lasers; laser beams; optical fibre amplifiers; optical fibre communication; optical pumping; wavelength division multiplexing; DWDM; MathCAD program; distributed Raman amplifier; hybird fiber amplifier; optical signal-to-noise ratio; terrestrial cascaded EDFA fiber optic communication link; Distributed amplifiers; Optical fiber amplifiers; Optical fiber communication; Optical noise; Optical pumping; Power amplifiers; Semiconductor optical amplifiers; Signal to noise ratio; Stimulated emission; Wavelength division multiplexing;
Conference_Titel :
Computing and Communication Technologies, 2009. RIVF '09. International Conference on
Conference_Location :
Da Nang
Print_ISBN :
978-1-4244-4566-0
Electronic_ISBN :
978-1-4244-4568-4
DOI :
10.1109/RIVF.2009.5174638
