基于CDT和Self-trapping的8×8光交叉连接特性数值研究

计算物理 ›› 2014, Vol. 31 ›› Issue (5): 581-586.

基于CDT和Self-trapping的8×8光交叉连接特性数值研究

李利平^1,3, 王博¹, 唐海玲¹, 罗小兵^2,3

1. 黄河科技学院信息工程学院, 河南郑州 450063;
2. 井冈山大学物理系, 江西吉安 343009
3. 清华大学物理系, 北京 100084

收稿日期:2013-06-26 修回日期:2014-01-08 出版日期:2014-09-25 发布日期:2014-09-25
通讯作者: 罗小兵,E-mail:xiaobingluo2013@aliyun.com
作者简介:李利平(1982-),女,硕士,讲师,主要从事光通信和光网络研究,E-mail:LLP010910@163.com
基金资助:
国家自然科学基金(10965001,11165009);郑州市科技发展计划项目(20120409);郑州市科学技术局项目(121PYFZX178);江西省自然科学基金(2010GQW0033);江西省青年科学家培养对象计划(20112BCB23024);教育部新世纪优秀人才支持计划(NCET-13-0836);江西省重点学科原子分子物理学科资助项目

Numerical Study of an 8×8 Optical Cross Connector Based on CDT and Self-trapping

LI Liping^1,3, WANG Bo¹, TANG Hailing¹, LUO Xiaobing^2,3

1. Institute of Information Engineering, Huang-he Science and Technology College, Zhengzhou 450063, China;
2. Department of Physics, Jinggangshan University, Jiangxi Ji'an 343009, China;
3. Department of Physics, Tsinghua University, Beijing 100084, China

Received:2013-06-26 Revised:2014-01-08 Online:2014-09-25 Published:2014-09-25

摘要/Abstract

摘要： 采用相干隧穿破坏(CDT)理论和自囚禁(self-trapping)效应相结合的方法实现光信号的交叉连接功能.在标量场和傍轴近似下,进一步采用紧束缚近似,得到周期性调制光纤中光信号传播的耦合模方程组.只考虑相邻光纤耦合作用情况下,数值模拟全光交叉连接功能实现过程并获得各种变换所需条件.在器件输出端引入可调谐滤波器可实现光信号的广播发送、光路变换和上下路等功能,能推广到任意N×N光交叉连接设计中,有效地解决波分复用光网络中光信号时延和容量需求问题.

关键词: 光通信, 相干隧穿破坏, 自囚禁效应, 光交叉连接

Abstract: Based on a method combining coherent destruction of tunneling( CDT) theory and self-trapping effect,a scheme realized all-optical transform. In scalar field and paraxial approximation,and by using tight binding approximation,we derived coupled mode equations of optical signal propagation in periodic modulated optical fibers. Considering coupling effect of adjacent fibers,we realized all-optical transform function numerically and conditions required were obtained. With introduction of tunable filter at output side,broadcast transmitting,optical transformation and drop/on functions are realized with an 8×8 optical cross connector,which can be extended to N×N optical cross connector. It can be used to solve problems of signals delay and capacity requirements in WDM optical networks.

Key words: optical communication, coherent destruction of tunneling (CDT), self-trapping effect, 8×8 optical cross connector

中图分类号:

TN911.74

李利平, 王博, 唐海玲, 罗小兵. 基于CDT和Self-trapping的8×8光交叉连接特性数值研究[J]. 计算物理, 2014, 31(5): 581-586.

LI Liping, WANG Bo, TANG Hailing, LUO Xiaobing. Numerical Study of an 8×8 Optical Cross Connector Based on CDT and Self-trapping[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2014, 31(5): 581-586.