Lavoute Laure, Knight Jonathan C, Dupriez Pascal, Wadsworth William J
Centre for Photonics and Photonic Materials, Department of Physics, University of Bath, Bath BA2 7AY, UK.
Opt Express. 2010 Jul 19;18(15):16193-205. doi: 10.1364/OE.18.016193.
We demonstrate high power generation of visible red and near IR light by four wave mixing in photonic crystal fibres (PCFs) pumped at 1064 nm with picosecond pulses (30 - 80 ps). 30% conversion efficiency is demonstrated in a single pass using fibre lengths less than 1 m, with signal wavelengths from 650 nm to 820 nm selectable by choice of PCF. An all fibre integrated system delivers 2.16 W at 740 nm with a pulse repetition frequency of 20 MHz. We discuss the overall parameter space for this type of wavelength conversion in PCF with different fibre designs suitable for delivering a particular wavelength at low or high power.
我们展示了在光子晶体光纤（PCF）中通过四波混频产生高功率的可见红光和近红外光，该光纤由1064nm的皮秒脉冲（30 - 80ps）泵浦。使用长度小于1m的光纤，单次通过时可实现30%的转换效率，通过选择PCF可选择650nm至820nm的信号波长。一个全光纤集成系统在740nm处输出2.16W的功率，脉冲重复频率为20MHz。我们讨论了这种在PCF中进行波长转换的整体参数空间，以及适用于低功率或高功率下输出特定波长的不同光纤设计。
