中文摘要：

利用Ti：sapphire飞秒激光脉冲在微结构光纤包层的次芯中通过参量四波混频效应获得480—550nm的反斯托克斯波,转换效率可高达28%.通过改变输入光的偏振方向可以调节反斯托克斯波的中心波长.理论模拟了飞秒激光在次芯中的模式特性和色散特性,较好地解释了实验结果.

英文摘要：

We report the generation of anti-Stokes emissions with wavelength 480--550 nm in the secondary cores of a dual-core photonic crystal fiber from 800 nm femtosecond laser pulses. The conversion efficiency is as high as 28%. The anti-Stokes frequency conversion of laser pulses has strong polarization dependence of the pump. The simulation of light propagation in the waveguide well explains the experimental results.