Title :
Enhanced Raman amplification by hybrid photonic crystal based ring structure
Author :
Seyedfaraji, A. ; Ahmadi, Vahid
Author_Institution :
Dept. of Electr. & Comput. Eng., Tarbiat Modares Univ., Tehran, Iran
Abstract :
In this paper, we investigate the enhancement of Raman amplification gain and bandwidth in silicon based Raman amplifier with a hybrid photonic crystal ring resonator. The Maxwell equations are solved using finite difference time domain method considering two photon absorption, free carrier absorption and Kerr effects. We also study the effects of effective refractive index of pump, and effective refractive index of signal on the Raman amplification gain with addition of several nano holes filled by optofluidic materials inside the ring in the signal path. Finally, by injecting 3 pumps with appropriate wavelength and power, we increased the Raman amplification bandwidth to larger than 1.875nm.
Keywords :
Maxwell equations; elemental semiconductors; finite difference time-domain analysis; optical Kerr effect; optical fibre amplifiers; optical pumping; optical resonators; photonic crystals; refractive index; silicon; Kerr effects; Maxwell equations; Raman amplification bandwidth; Raman amplification gain; Si; effective refractive index; enhanced Raman amplification; finite difference time domain method; free carrier absorption; hybrid photonic crystal ring resonator; nanoholes; optofluidic materials; pump; ring structure; silicon based Raman amplifier; two photon absorption; Gain; Nonlinear optics; Optical ring resonators; Optical waveguides; Silicon; Stimulated emission; Structural rings; Raman amplification; Raman bandwidth; hybrid photonic crystal; ring resonator;
Conference_Titel :
Telecommunications (IST), 2012 Sixth International Symposium on
Conference_Location :
Tehran
Print_ISBN :
978-1-4673-2072-6
DOI :
10.1109/ISTEL.2012.6483041
