%0 Conference Paper %A Nguyen, The Anh %A Nguyen, Thuy Van %A Nguyen, Thanh Hai %A Pham, Thanh Son %A Bui, Huy %A Tran, Thi Cham %A Bui, Trung Ninh %A Ha, Xuan Vinh %A Pham, Van Hoi %B The 2nd Academic Conference on Natural Science for Master and PhD Students from Cambodia-Laos-Malaysia-Vietnam %C Vinh, Nghe An %D 2011 %F SisLab:2109 %P 312-316 %T Optical amplifier based on simulated Raman scattering effect %U https://eprints.uet.vnu.edu.vn/eprints/id/eprint/2109/ %X The broad band an low noise figure of a Raman Optical Amplifier makes it attractive for use in high-capacity, long-haul transmission systems. In this paper we present experimental results of optical amplifier using stimulated Raman scattering effect in germano-silica fiber pumped by laser diodes at wave of 1470-1471 nm. The amplifier coefficient of Raman Optical Amplifier achieved up to 11 dB in the wavelength range of 1550 nm when the pumped power is of 29.54 dBm (900 mW) in standard optical fiber SMF-28 with the fiber length of 85 Km. This Raman Optical Amplifier can be used in high-speed DWDM fiber optic communication networks.