拉曼辅助色散渐减NOLM的绝热孤子压缩.pdfVIP

2012 年第5 期 光通信研究 2012. 10 总第 173 期 STUDY ON OPTICAL COMMUNICATIONS (Sum. No. 173) 兑现市系就与周路章良品 拉曼辅助包散渐减 NOLM 的绝热孤子压缩 贾东方，陈 炯，李亚滨，刘彤辉，王肇颖，杨天新 (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) 摘要:ASCC绝热孤子压缩)是获取超短脉冲的重要手段之一。提出一种基于拉曼增益辅助色散渐减光纤坏镜的 ASC 方案。 利用长度为 3.0 km 的线性 DDFC 色散渐减光纤)构成 NOLMC非线性光纤环镜)，并辅以 7 dB/km 的分布拉曼增益，成功将 10 ps的光脉冲绝热压缩至 195.3 缸，压缩因子为 5 1. 2 ，基应能量为 11.61% 。研究结果表明，采用这种压缩方案既可以获得较 高的压缩因子，还能有效抑制压缩脉冲的基座。 关键词:绝热孤子压缩g 色散渐减光纤s 非线性光纤坏镜5 分布拉曼放大 申团分类号:TN929.1 文献标志码:A 文章编号:1005-8788(2012)05-0024-02 Adiabatic soliton compression based on Raman gain assisted dispersion decreasing NOLM Jia Dongfang , Chen Jio吨， Li Yabin , Liu Tongh时， Wang Zhaoying , Yang Tianxin CKey Laboratory of Optoelectronics lnformation and Technical Science , Ministry of Education , College of Precision lnstrument and Optoelectronics Engineering , Tianjin University , Tianjin 300072 , China) Abstract , Adiabatic Soliton Compression CASC) is an important means for obtaining ultra-short pulses. ln this paper , a novel ASC scheme based on Nonlinear Optical Loop Mirror CNOLM) is proposed , which is made up of a 3 km-long linear Dispersion Decreasing Fiber CDDF) assisted by 7 d8/km distributed Raman gain. In this scheme , 10 ps pulses are compressed to 195. 3 缸， with a compression factor of 5 1. 2 and the pedestal energy of only 11. 61% , which indicate that this scheme can not only in- crease the compression factor , but also eHectively suppresses the pedestal of compressed pulses. Key words: ASC , dispersion decreasing fiber; NOLM; distributed Raman amplification o 51