利用全光波长变换和色散介质实现慢光延时  

Slow Light Delay Based on All-optical Wavelength Conversion and Dispersion Medium

作　　者：闫青芝 贾东方[1] 贾伟玮 王肇颖[1] 葛春风[1] 杨天新[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院光电信息技术科学教育部重点实验室,天津300072

出　　处：《激光杂志》2016年第5期6-9,共4页Laser Journal

基　　金：国家自然科学基金资助项目(61377078;61575143;61275084)

摘　　要：首先,利用500m长色散平坦高非线性光纤（dispersion flattened highly nonlinear fiber,DF-HLNF）作为非线性介质,通过四波混频效应实现了1541.8~1559.4 nm的全光波长变换,变换带宽为17.6 nm。然后,将原始信号和波长变换信号在3.88 km中的色散补偿光纤（dispersion compensating fiber,DCF）中传输,实现了超过6 ns的慢光延时量。实验结果与理论值非常一致,对未来全光通信系统中的光延时线和光缓存器具有重要的参考价值。Firstly,all-optical wavelength conversion with band-width of 17. 6 nm（ from 1541. 8 nm to 1559. 4nm） by FWM in 500 m dispersion flattened highly nonlinear fiber（ DF-HNLF） was realized.Then,the maximum slow delay of 6. 4 ns was experimentally achieved by transmitting the original signal and wavelength-converted signal simultaneously in 3. 88 kmdispersion compensating fiber（ DCF）. The experimental results were in good agreement with the principles.All these studies would have value in the realization of optical delay line and optical buffer in the future all optical network.

关 键 词：四波混频 波长变换 慢光 可调谐光延时线 

分 类 号：TN253[电子电信—物理电子学]