【摘要】 在单信号和多信号条件下,通过数值计算的方法分析了几种光子晶体光纤作喇曼放大器介质的增益情况。考虑有效喇曼增益系数,光纤损耗,泵浦功率等多个参量对增益的影响,将现有低损耗光子晶体光纤与色散补偿光纤进行了比较。结果表明,当小纤芯光子晶体光纤的损耗达到较低的水平后,PCF将成为良好的喇曼放大器增益介质。更多还原

【Abstract】 Using computer simulation to study the gain characters of different kinds of photonic crystal fibers(PCF) Raman amplifiers in one signal and many signals situations. In this process, there are some analyses about different parameters’ effects to the gain character such as effective Raman gain coefficient, fiber loss and pump power. With the existing low loss PCF and DCF compared, it is shown that the existing PCF is not better than DCF, only when the loss of PCF with small effective area become lower, would PCF be perfect choice of fiber Raman amplifier.更多还原