In recent years , fiber lasers have developed rapidly due to the demand of optical fiber communication , especially , the ultra - short pulse fiber laser which has drawn more and more attention because of its potential applications in otdm ( optical time division multiplexing ) technique and optical soliton communication system 近年来,由于光纤通信的发展需要,光纤激光器得到了迅猛的发展,特别是短脉冲光纤激光器,由于在光时分复用( otdm )技术和光孤子通信系统中的潜在应用,更是受到了越来越多的关注。
Abstract : this paper propsed an idea that the optical network and ip network will develop parallelly for long time , analysed the important meaning of oxc and oadm in the future high speed information network , and pointed out that oxc , oadm , otdm and ops represent the development direction of future optical network 文摘:提出了未来光网络与ip网络平行发展，长期共存的思想.分析了光交叉连接设备（ oxc ）和光分插复用设备（ oadm ）在未来光网络中的重要意义.并明确了光时分复用（ otdm ）和光包交换（ ops ）是未来光网络的发展方向
But the development of dwdm ca n ' t be satisfied for finite wavelengths . however aowc can make the wavelengths reused . a novel project is explored for signal pulse compression and shaping by utilizing the co - propagating second order super - gauss control pulse and gauss signal pulse in semiconductor optical amplifier 随着超高速密集波分复用( dwdm )和光时分复用( otdm )的日趋发展，要求信号脉冲的脉冲宽度越来越窄和复用的信道数也越来越多，但有限的波长资源不能满足dwdm的发展要求，而波长转换技术可以提高信号波长的重复利用率。
Generation of multi - wavelength signals and ultra - short pulses are of great importance for a wide range of applications such as in wavelength - division - multiplexed ( wdm ) and optical time - division - multiplexed ( otdm ) fiber communication systems , fiber sensing , nonlinear optics , optical instrument testing , and time - resolved spectroscopy 密集波分复用( dwdm )和光时分复用( otdm )是实现光纤通信系统升级扩容的有效途径,而多波长信号及高重复频率的超短光脉冲的产生则是与其相对应的两种关键技术。
