摘要
该文首先简单介绍各种波长变换技术,对比它们的优缺点,选出两种能用于未来全光透明网络中的波长变换技术:四波混频波长变换技术和差频波长变换技术.然后按所用器件不同,分别描述两种光波混频波长变换技术的基本原理、结构、特点和发展现状.针对它们缺点,详细介绍了几种国内外最新的光波混频波长变换方案.这些方案在一定程度上弥补了基于光波混频的波长变换技术的不足,推动了全光波长变换实用化及全光透明网络的进程.
Various wavelength conversion (WC) techniques are introduced, and two are chosen to be used in all optical transparent networks. These are four wave mixing (FWM) and difference frequency generation (DFG). Based on the different devices employed, the operation principle, structure, characteristics, and the current status of development are discussed. Taking into the shortcomings of the techniques, some latest approaches of alloptical wavelength converters based on optical wave mixing are described. These approaches overcomes the shortcomings in all optical wavelength conversion, and contributes to the progress of the alloptical transparent networks.Key works: wavelength conversion (WC); tansparent; fiber; semiconductor optical amplifier (SOA); four wave mixing (FWM); difference frequency generation (DFG); LiNbO3 waveguide
出处
《上海大学学报（自然科学版）》
CAS
CSCD
2002年第6期471-476,481,共7页
Journal of Shanghai University:Natural Science Edition
基金
上海市教委青年基金(2l7l31)；上海市科委光科技专项基金(A-24)资助课题
关键词
波长变换
透明
光纤
半导体光放大器
四波混频
差频
LINBO3波导
wavelength conversion (WC)
tansparent
fiber
semiconductor optical amplifier (SOA)
four wave mixing (FWM)
difference frequency generation (DFG)
LiNbO3 waveguide
