基于光纤中SRS效应的全光波长转换

All-optical wavelength conversion based on stimulated Raman scattering in optical fiber

提出利用光纤中非线性效应——受激喇曼散射(stimulated Raman scattering,SRS)实现波长转换的原理方案和相应的理论分析模型,并进行实验验证,将经过放大后的信号光和连续探测光同时注入光纤,在光纤中进行SRS放大,实现信号之间的转换。结果表明:利用SRS可实现波长转换,可实现跨几个THz的波长之间的转换。得到最大转换效率和消光比分别为-17.3dB和15.7dB。通过改变探测光的波长,可实现相隔几个THz光信号的全光波长转换和可调谐波长转换。

Abstraet. A novel all-optical wavelength conversion scheme based on stimulated Raman scatter- ing （SRS） in optical fiber and the corresponding model were theoretically proposed and experi- mentally demonstrated. The amplified signal light and continuous probe light were injected in- to fiber simultaneously and the wavelength conversion were achieved between the two lights. The results show that SRS can be used to achieve wavelength conversion and realize the con- version between the wavelength across several THz. The maximum conversion efficiency and optimum extinction ratio are --17.3 dB and 15.7 dB respectivly. By changing the wavelength of probe light,the all-optical wavelength conversion and tunable wavelength conversion seperated several THz can be realized.