光纤光参量放大增益特性的研究

Study on the Fiber Optical Parametric Amplification Gain Property

分析了光纤光参量放大过程泵浦光与信号光的非线性相互作用，得到信号光增益G_s。进一步分析G_s，获得其增益带宽特性，只有在泵浦波长大于光纤零色散波长时才有增益，带宽约为50nm。

The nonlinear interaction between the pump and the signal light in the optical parameter amplifing process in optical fiber is analyzed,and the signal gain G, is got. Analyzing the gain,we can know the property of the gain bandwidth. The bandwidth is about 50nm only when the pump Wavelength is greater than the Zero-dis persion wavelength.