基于光子晶体光纤的超连续谱光源设计

Design of Super Continuum Spectrum Light Source Based on PCF

为了运用光子晶体光纤高非线性效应技术获得超宽光谱,设计了一种基于光子晶体光纤的超连续谱光源,通过对光子晶体光纤进行塌孔处理后再熔接的方式,将高峰值功率的窄线宽脉冲光注入高非线性光子晶体光纤,利用光纤非线性效应实现了光谱展宽。实验结果表明,该超连续谱光源实现了光谱范围440~2 400 nm,输出光功率为276 mW。

In order to obtain super wide spectrum by using the high nonlinearity effect of PCF, a super continuum light source based on photonic crystal fiber(PCF) is designed. The narrow line width pulse light with high peak power is injected into the high nonlinear PCF by the way of hole collapse and re-melting, and the spectrum broadening is realized by using the nonlinear effect of the fiber. Experimental results show that the spectrum range of the source is achieved 440~2 400 nm and the output power is 276 mW.