.Raman amplification of Stokes pulse in ultra-small silicon-on-insulator optical waveguide[J].Optoelectronics Letters,2008,4(1):12-14 Raman amplification of Stokes pulse in ultra-small silicon-on-insulator optical waveguide WU Jian-wei LUO Feng-guang ZHANG Qing-tang HUANG Yong-jun Institute of Optoelectronics Science and Engineering and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China Abstract:       The stimulated Raman amplification of picosecond Stokes pulse is numerically investigated in ultra-small silicon-oninsulator optical waveguide. Numerical results show that we obtain the gain of up to 30-dB for weak Stokes pulse in the copropagation configuration for 10 mm Jength waveguide using high intensity pump optical pulse. The peak gain, pulse width, rise time, and fall time of Stokes pulse will experience the variation course of decaying then increasing with increasing waveguide length. The time delay of output Stokes pulse is controlled by adjusting the initial time delay of both pump and Stokes pulses. Hits: 4043 Download times: 180 View Full Text    Download reader