New design of ring-based Raman amplifier using optofluidic materials

被引：3
|
作者：
Seyedfaraji, Amire [1 ]
Ahmadi, Vahid [1 ]
机构：
[1] Tarbiat Modares Univ, Dept Elect Engn, Tehran, Iran
来源：
OPTICAL ENGINEERING | 2013年 / 52卷 / 09期
关键词：
microring Raman amplifier; optofluidic material; nonlinear effects; SILICON WAVE-GUIDES; SLOW-LIGHT; AMPLIFICATION; SCATTERING; GAIN;
D O I：
10.1117/1.OE.52.9.097103
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present innovative structures for ring-based Raman amplifier with two separate entrances for the pump and signal. In this way, only the pump is coupled into the ring and the signal passes directly through the path that the amplified pump is propagating inside the ring without a destructive effect on signal pulse. Using engineered nanoholes filled with optofluidic material in the signal and pump paths, we reduce pump and signal group velocity to improve the structure and achieve larger Raman gain. The time evolution and propagation of picosecond signal pulses and dispersion inside the device are analyzed. Maxwell equations are solved using finite difference time-domain method considering optical nonlinear parameters like two photon absorption, free-carrier absorption, and Kerr effect. (C) 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
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页数：6
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