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1. 发明授权

US07075711B2 Optical communication system having dynamic gain equalization 有权
标题翻译：具有动态增益均衡的光通信系统
公开(公告)号：US07075711B2
公开(公告)日：2006-07-11
申请号：US10986817
申请日：2004-11-15
申请人： Charles W. Haggans , Jun Bao , Harshad Sardesai , Michael Y. Frankel , Mahir Nayfeh , Balakrishnan Sridhar , Vipul Bhatnagar
发明人： Charles W. Haggans , Jun Bao , Harshad Sardesai , Michael Y. Frankel , Mahir Nayfeh , Balakrishnan Sridhar , Vipul Bhatnagar
IPC分类号： H04B10/12 , H04J14/00
CPC分类号： H04B10/296
摘要： An optical communication device, and related method, are provided for reducing ripple in WDM systems. In particular, the optical communication device includes a dynamic gain equalization (DGE) circuit is coupled to an optical communication path carrying the WDM optical signals. The DGE circuit adjusts the powers associated with each channel on a channel-by-channel basis so that the WDM optical signal has a desired power spectrum. The DGE is controlled in response to sense signals generated by an optical performance monitoring (OPM) circuit located downstream from the DGE or substantially co-located with the DGE. The OPM monitors the WDM spectrum for optical signal power variations and outputs the sense signal when the variations fall outside a given tolerance. Typically, one DGE is associated with a group of concatenated amplifiers so that multiple DGEs are provided in a system having many groups of such amplifiers. Likewise, multiple OPMs are provided in such systems, each corresponding to a respective DGE, so that ripple can be reduced and desired WDM optical signal powers can be achieved in the WDM system.
摘要翻译：提供了一种光通信设备及相关方法，用于减少WDM系统中的纹波。特别地，光通信设备包括动态增益均衡（DGE）电路耦合到承载WDM光信号的光通信路径。 DGE电路在逐个通道的基础上调整与每个通道相关联的功率，使得WDM光信号具有所需的功率谱。响应由位于DGE下游的光学性能监视（OPM）电路产生的感测信号或与DGE基本上同一位置来控制DGE。 OPM监视WDM频谱的光信号功率变化，并在变化值超出给定公差时输出感测信号。通常，一个DGE与一组级联放大器相关联，使得在具有许多这种放大器组的系统中提供多个DGE。类似地，在这样的系统中提供多个OPM，每个对应于相应的DGE，使得纹波可以减少，并且可以在WDM系统中实现期望的WDM光信号功率。

2. 发明授权

US07092148B1 Optical communication system having dynamic gain equalization 有权
公开(公告)号：US07092148B1
公开(公告)日：2006-08-15
申请号：US10144082
申请日：2002-05-13
申请人： Charles W. Haggans , Jun Bao , Harshad Sardesai , Michael Y. Frankel , Mahir Nayfeh , Balakrishnan Sridhar , Vipul Bhatnagar
发明人： Charles W. Haggans , Jun Bao , Harshad Sardesai , Michael Y. Frankel , Mahir Nayfeh , Balakrishnan Sridhar , Vipul Bhatnagar
IPC分类号： H01S3/00
CPC分类号： H04B10/296
摘要： An optical communication device, and related method, are provided for reducing ripple in WDM systems. In particular, the optical communication device includes a dynamic gain equalization (DGE) circuit is coupled to an optical communication path carrying the WDM optical signals. The DGE circuit adjusts the powers associated with each channel on a channel-by-channel basis so that the WDM optical signal has a desired power spectrum. The DGE is controlled in response to sense signals generated by an optical performance monitoring (OPM) circuit located downstream from the DGE or substantially co-located with the DGE. The OPM monitors the WDM spectrum for optical signal power variations and outputs the sense signal when the variations fall outside a given tolerance. Typically, one DGE is associated with a group of concatenated amplifiers so that multiple DGEs are provided in a system having many groups of such amplifiers. Likewise, multiple OPMs are provided in such systems, each corresponding to a respective DGE, so that ripple can be reduced and desired WDM optical signal powers can be achieved in the WDM system.

3. 发明授权

US06967768B1 Optical communication system having dynamic gain equalization 有权
公开(公告)号：US06967768B1
公开(公告)日：2005-11-22
申请号：US10144082
申请日：2002-05-13
申请人： Charles W. Haggans , Jun Bao , Harshad Sardesai , Michael Y. Frankel , Mahir Nayfeh , Balakrishnan Sridhar
发明人： Charles W. Haggans , Jun Bao , Harshad Sardesai , Michael Y. Frankel , Mahir Nayfeh , Balakrishnan Sridhar
摘要： An optical communication device, and related method, are provided for reducing ripple in WDM systems. In particular, the optical communication device includes a dynamic gain equalization (DGE) circuit is coupled to an optical communication path carrying the WDM optical signals. The DGE circuit adjusts the powers associated with each channel on a channel-by-channel basis so that the WDM optical signal has a desired power spectrum. The DGE is controlled in response to sense signals generated by an optical performance monitoring (OPM) circuit located downstream from the DGE or substantially co-located with the DGE. The OPM monitors the WDM spectrum for optical signal power variations and outputs the sense signal when the variations fall outside a given tolerance. Typically, one DGE is associated with a group of concatenated amplifiers so that multiple DGEs are provided in a system having many groups of such amplifiers. Likewise, multiple OPMs are provided in such systems, each corresponding to a respective DGE, so that ripple can be reduced and desired WDM optical signal powers can be achieved in the WDM system.

4. 发明申请

US20050094252A1 Optical communication system having dynamic gain equalization 有权
标题翻译：具有动态增益均衡的光通信系统
公开(公告)号：US20050094252A1
公开(公告)日：2005-05-05
申请号：US10986817
申请日：2004-11-15
申请人： Charles Haggans , Jun Bao , Harshad Sardesai , Michael Frankel , Mahir Nayfeh , Balakrishnan Sridhar
发明人： Charles Haggans , Jun Bao , Harshad Sardesai , Michael Frankel , Mahir Nayfeh , Balakrishnan Sridhar
IPC分类号： H01S3/00 , H04B10/17
CPC分类号： H04B10/296
摘要： An optical communication device, and related method, are provided for reducing ripple in WDM systems. In particular, the optical communication device includes a dynamic gain equalization (DGE) circuit is coupled to an optical communication path carrying the WDM optical signals. The DGE circuit adjusts the powers associated with each channel on a channel-by-channel basis so that the WDM optical signal has a desired power spectrum. The DGE is controlled in response to sense signals generated by an optical performance monitoring (OPM) circuit located downstream from the DGE or substantially co-located with the DGE. The OPM monitors the WDM spectrum for optical signal power variations and outputs the sense signal when the variations fall outside a given tolerance. Typically, one DGE is associated with a group of concatenated amplifiers so that multiple DGEs are provided in a system having many groups of such amplifiers. Likewise, multiple OPMs are provided in such systems, each corresponding to a respective DGE, so that ripple can be reduced and desired WDM optical signal powers can be achieved in the WDM system.
摘要翻译：提供了一种光通信设备及相关方法，用于减少WDM系统中的纹波。特别地，光通信设备包括动态增益均衡（DGE）电路耦合到承载WDM光信号的光通信路径。 DGE电路在逐个通道的基础上调整与每个通道相关联的功率，使得WDM光信号具有所需的功率谱。响应由位于DGE下游的光学性能监视（OPM）电路产生的感测信号或与DGE基本上同一位置来控制DGE。 OPM监视WDM频谱的光信号功率变化，并在变化值超出给定公差时输出感测信号。通常，一个DGE与一组级联放大器相关联，使得在具有许多这种放大器组的系统中提供多个DGE。类似地，在这样的系统中提供多个OPM，每个对应于相应的DGE，使得纹波可以减少，并且可以在WDM系统中实现期望的WDM光信号功率。

5. 发明授权

US07343101B1 Method and system for reducing crosstalk in an optical communication network 有权
标题翻译：减少光通信网络串扰的方法和系统
公开(公告)号：US07343101B1
公开(公告)日：2008-03-11
申请号：US10256561
申请日：2002-09-27
申请人： Michael Y. Frankel , Mahir Nayfeh
发明人： Michael Y. Frankel , Mahir Nayfeh
IPC分类号： H04B10/00
CPC分类号： H04B10/2543 , H04J14/02
摘要： A method of reducing correlation between channels in an optical communication network. A transmission characteristic of first data on a first channel is altered to reduce correlation between the first data and second data on a second channel. The reduction in correlation reduces crosstalk. The transmission characteristic may be one or more of time delay, scrambling, inversion or modulation.
摘要翻译：一种降低光通信网络中的信道之间的相关性的方法。改变第一信道上的第一数据的传输特性以减少第二信道上的第一数据与第二数据之间的相关性。相关性的降低降低了串扰。传输特性可以是时间延迟，加扰，反转或调制中的一个或多个。

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