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1. 发明授权

US07327954B2 Optical signaling to share active channel information 有权
标题翻译：光信号共享活动信道信息
公开(公告)号：US07327954B2
公开(公告)日：2008-02-05
申请号：US10161274
申请日：2002-05-31
申请人： Paparao Palacharla , Hok Yong Pua , Emir Catovic , Harbhajan Vridee
发明人： Paparao Palacharla , Hok Yong Pua , Emir Catovic , Harbhajan Vridee
IPC分类号： H04B10/08
CPC分类号： H04J14/0291 , H04B10/0771 , H04B10/0775 , H04B2210/078 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0283 , H04J14/0287 , H04J14/0297
摘要： A method for optical supervisory signaling includes determining a wavelength channel status (WCS) value, a wavelength channel failure (WCF) value, and a wavelength channel lit (WCL) value for each one of multiple data channels services by an optical communication node. The method further includes communicating the values to a second optical communication node.
摘要翻译：一种用于光监控信号的方法包括由光通信节点确定多个数据信道业务中的每一个的波长信道状态（WCS）值，波长信道故障（WCF）值和波长信道点亮（WCL）值。该方法还包括将值传送到第二光通信节点。

2. 发明授权

US06647176B1 Method and apparatus to compensate for polarization mode dispersion 失效
公开(公告)号：US06647176B1
公开(公告)日：2003-11-11
申请号：US10219374
申请日：2002-08-15
申请人： Hok Yong Pua , Chris Allen , Ken Demarest , Ron Hui , Kumar Vijay Peddanarappagari
发明人： Hok Yong Pua , Chris Allen , Ken Demarest , Ron Hui , Kumar Vijay Peddanarappagari
IPC分类号： G02B600
CPC分类号： H04B10/2569
摘要： A polarization scrambler and a polarization mode dispersion (PMD) compensation system compensate for PMD on an active optic fiber. The polarization scrambler scrambles a state of polarization of an optical signal that carries user information. The PMD compensation system then receives the optical signal over the active optic fiber. The PMD compensation system measuring a differential group delay and principal states of polarization of the PMD in the active optic fiber. The PMD compensation system then determines a modification of the optical signal based on the differential group delay and the principal states of polarization of the PMD. The PMD compensation system modifies the optical signal in the active optic fiber to compensate for PMD based on the determination of the modification. The PMD compensation system then transmits the optical signal. By measuring the differential group delay and the principal states of polarization, the PMD compensation system adapts to changes in the PMD in the active optic fiber.

3. 发明授权

US06459830B1 Method and apparatus to compensate for polarization mode dispersion 失效
标题翻译：补偿偏振模色散的方法和装置
公开(公告)号：US06459830B1
公开(公告)日：2002-10-01
申请号：US09500092
申请日：2000-02-08
申请人： Hok Yong Pua , Chris Allen , Ken Demarest , Ron Hui , Kumar Vijay Peddanarappagari
发明人： Hok Yong Pua , Chris Allen , Ken Demarest , Ron Hui , Kumar Vijay Peddanarappagari
IPC分类号： G02B628
CPC分类号： H04B10/2569
摘要： A polarization scrambler and a polarization mode dispersion (PMD) compensation system compensate for PMD on an active optic fiber. The polarization scrambler scrambles a state of polarization of an optical signal that carries user information. The PMD compensation system then receives the optical signal over the active optic fiber. The PMD compensation system measuring a differential group delay and principal states of polarization of the PMD in the active optic fiber. The PMD compensation system then determines a modification of the optical signal based on the differential group delay and the principal states of polarization of the PMD. The PMD compensation system modifies the optical signal in the active optic fiber to compensate for PMD based on the determination of the modification. The PMD compensation system then transmits the optical signal. By measuring the differential group delay and the principal states of polarization, the PMD compensation system adapts to changes in the PMD in the active optic fiber.
摘要翻译：偏振加扰器和偏振模色散（PMD）补偿系统补偿有源光纤上的PMD。极化扰码器加扰携带用户信息的光信号的极化状态。然后，PMD补偿系统通过有源光纤接收光信号。 PMD补偿系统测量有源光纤中PMD的差分群延迟和主要偏振状态。然后，PMD补偿系统基于差分组延迟和PMD的主要极化状态确定光信号的修改。 PMD补偿系统根据修改的确定修改有源光纤中的光信号，以补偿PMD。然后PMD补偿系统发送光信号。通过测量差分组延迟和主要的极化状态，PMD补偿系统适应有源光纤中PMD的变化。

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