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1. 发明授权

US06341021B1 Dynamic power equalization of many wavelength-division-multiplexed channels in a fiber-optic system 失效
标题翻译：光纤系统中许多波分复用通道的动态功率均衡
公开(公告)号：US06341021B1
公开(公告)日：2002-01-22
申请号：US09023741
申请日：1998-02-13
申请人： Alan E. Wilner , David A. Smith , Jin-Xin Cai , Kai-Ming Feng , Xingyu Zou , Shouhua Huang
发明人： Alan E. Wilner , David A. Smith , Jin-Xin Cai , Kai-Ming Feng , Xingyu Zou , Shouhua Huang
IPC分类号： H04J1402
CPC分类号： H04B10/2507 , H04J14/0221
摘要： A dynamic power equalization module (10) for an optical network is provided. It includes a module input (16) for receiving an optical transmission (14) containing a combination of different channels (C1-Cn). Each channel (C1-Cn) has a different characteristic wavelength (&lgr;1-&lgr;n) and different varying power. A power equalization device that is polarization insensitive is connected between the module input (16) and a module output (20). The power equalization device is driven by RF acoustic signals (26). A feedback loop (22) receives at least a portion of output from the module output (20) and generates, based upon a comparison of relative powers of the different channels (C1-Cn), the RF acoustic signals (26) which drive the power equalization device. The power equalization device is driven such that it dynamically controls transmission of the different channels (C1-Cn) to substantially equalize power differentials therebetween. The power equalization device includes a parallel array of acousto-optic modulators (AO1-AOn).
摘要翻译：提供了一种用于光网络的动态功率均衡模块（10）。它包括用于接收包含不同信道（C1-Cn）的组合的光传输（14）的模块输入（16）。每个通道（C1-Cn）具有不同的特征波长（lambd1-lambdn）和不同的变化功率。在模块输入（16）和模块输出（20）之间连接有极化不敏感的功率均衡器件。功率均衡装置由RF声信号（26）驱动。反馈回路（22）接收来自模块输出（20）的输出的至少一部分，并且基于不同通道（C1-Cn）的相对功率的比较产生驱动功率均衡器。功率均衡装置被驱动，使得其动态地控制不同通道（C1-Cn）的传输，以使它们之间的功率差基本相等。功率均衡装置包括声光调制器（AO1-AOn）的并联阵列。

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