【作者】 杨四刚； 李进延； 陈伟； 陈宏伟； 谢世钟；

【Author】 YANG Sigang1, LI Jinyan2, CHEN Wei2,3, CHEN Hongwei1 and XIE Shizhong1 (1. Department of Electronic Engineering,Tsinghua University, Beijing 100084,China) (2. FiberHome Telecommunication Technologies CO.LTD, Wuhan 430074, China) (3. School of Optoelectronics Science & Technology, Huazhong University of Science & Technology, Wuhan 430074, China)

【机构】 清华大学电子工程系； 烽火通信；

【摘要】 本文应用国产的小芯径高非线性光子晶体光纤基于受激布里渊散射实现了大延迟的慢光。通过采用一段普通高非线性光纤作为模式转换器,光子晶体光纤和普通单模光纤得以成功焊接。由于光子晶体光纤两端尾纤焊接端面的部分反射,在光子晶体光纤中形成一个F-P腔。实验研究了该光子晶体光纤的布里渊散射增益特性。采用50米高非线性光子晶体光纤实现了最大半个脉冲的慢光延迟。实验还发现F-P腔能改变该段光纤的慢光延迟特性,使得慢光延迟的时间随增益的增加呈指数增加。F-P腔的存在使慢光延迟得到了大大增强。更多还原

【Abstract】 This paper reports that we realize large delay slow light using our fabricated small core high nonlinear photonic crystal fiber (PCF) based on the stimulated Brillouin scattering. The PCF can be spliced with single mode fiber pigtails via high nonlinear fiber as the mode converters. A Fabry-Perot cavity occurs due to the partial reflective splices in the end of PCF. The Brillouin gain characteristics of the PCF is experimentally investigated. Up to 1/2 pulse width slow-light delay is achieved in only 50-m PCF. The presence of the cavity modifies the slow-light delay characteristics and the delay time grows exponentially with the Brillouin gain. The F-P cavity can enhance the slow-light delay significantly.更多还原