Dynamic channel equalization in reconfigurable WDM networks using acousto-optic tunable filters
Dynamic channel equalization in reconfigurable WDM networks using acousto-optic tunable filters
复制标题
使用声光可调谐滤波器的可重构 WDM 网络中的动态信道均衡
DOI：
10.1109/leos.1996.571611
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Z. Bao
中科院分区：
文献类型：
--
作者：
A. Willner;S.H. Huang;X. Y. Zou;S. Hwang;D.A. Smith;Z. Bao
光网络中最有前途的技术之一是波分复用（WDM）的使用，其中许多不同波长的信道沿着光纤同时传输。使这些系统成为可能的一个关键基础技术是掺铒光纤放大器EDFA的引入。EDFA的一个明显缺点是增益随波长变化不均匀，导致许多信道之间的功率和信噪比（SNR）差异很大。我们将讨论我们的动态均衡三个2.5 Gbit/s的WDM信道，其中信道功率差从20 dB降低到只有1 dB，在距离2,500公里，通过放置在EDFA的声光滤波器的演示。
One of the most promising technologies in optical networks is the use of wavelength-division multiplexing (WDM), in which many different-wavelength channels are simultaneously transmitted along the optical fiber. One key underlying technology which has enabled these systems is the introduction of the erbium-doped fiber amplifier EDFA. A glaring disadvantage of the EDFA is that the gain is not uniform with wavelength, causing a significant power and signal-to-noise ratio (SNR) differential among many channels. We will discuss our demonstrations of dynamically equalizing three 2.5 Gbit/s WDM channels in which the channel power differential is reduced from 20 dB to only 1 dB over a distance of 2,500 km by placing an acousto optical filter in an EDFA.