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1. 发明申请

WO2004028091A2 OPTICAL NETWORK WITH DISTRIBUTED SUB-BAND REJECTIONS 审中-公开
标题翻译：具有分布式子带抑制的光网络
公开(公告)号：WO2004028091A2
公开(公告)日：2004-04-01
申请号：PCT/US2003/029157
申请日：2003-09-16
申请人： FUJITSU NETWORK COMMUNICATIONS, INC.
发明人： TIAN, Cechan , TAKEGUCHI, Koji , AOKI, Yasuhiko , KINOSHITA, Susumu
IPC分类号： H04L12/42
CPC分类号： H04J14/0294 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/021 , H04J14/0212 , H04J14/0213 , H04J14/0219 , H04J14/0283
摘要： A node for an optical network includes a first transport element operable to be coupled to an optical ring and to transport traffic in a first direction and a second transport element operable to be coupled to the optical ring and to transport traffic in a second, disparate direction. The first and second transport elements each include an optical splitter element operable to split an ingress signal into an intermediate signal and a drop signal. A filter in each node is operable to reject a first sub-band of the network from the intermediate signal to generate a passthrough signal including a plurality of disparate sub-bands of the network. Each node further includes an add element operable to add local traffic in the first sub-band to the passthrough signal for transport in the network.
摘要翻译：用于光网络的节点包括第一传输元件和第二传输元件，所述第一传输元件可操作以耦合到光环并且以第一方向传输话务，所述第二传输元件可操作以耦合到所述光环并且耦合到以不同的方向进行第二次交通。第一和第二传送元件每个都包括分光器元件，该分光器元件可操作用于将入口信号分成中间信号和分出信号。每个节点中的滤波器可操作用于从中间信号中拒绝网络的第一子带以生成包括网络的多个不同子带的传递信号。每个节点还包括添加元件，其可操作用于将第一子带中的本地业务添加到用于在网络中传输的传递信号。

2. 发明申请

WO2004107629A2 METHOD AND SYSTEM FOR DETERMINING GAIN FOR AN OPTICAL SIGNAL 审中-公开
标题翻译：用于确定光信号增益的方法和系统
公开(公告)号：WO2004107629A2
公开(公告)日：2004-12-09
申请号：PCT/US2004/016321
申请日：2004-05-25
申请人： FUJITSU NETWORK COMMUNICATIONS, INC. , TIAN, Cechan , KINOSHITA, Susumu
发明人： TIAN, Cechan , KINOSHITA, Susumu
IPC分类号： H04J14/02
CPC分类号： H04B10/0731 , H04J14/0221
摘要： A method for determining gain for an optical signal includes measuring a first power level that is an output power level of an optical signal at a first optical node, communicating the optical signal to a second optical node, and communicating the first power level to the second optical node in an optical supervisory channel of the optical signal. The method further includes receiving the optical signal at the second optical node, measuring a second power level of the optical signal at the second optical signal based on the first and second power levels.
摘要翻译：一种用于确定光信号的增益的方法包括测量作为第一光节点处的光信号的输出功率电平的第一功率电平，将光信号传送到第二光节点，以及将第一功率电平传送到第二功率电平在光信号的光监控信道中的光节点。该方法还包括在第二光节点处接收光信号，基于第一和第二功率电平测量第二光信号处的光信号的第二功率电平。

3. 发明申请

WO2004112287A1 POWER TILT COMPENSATION USING AUTOMATIC POWER BALANCE 审中-公开
标题翻译：使用自动功率平衡的功率倾斜补偿
公开(公告)号：WO2004112287A1
公开(公告)日：2004-12-23
申请号：PCT/US2004/016341
申请日：2004-05-25
申请人： FUJITSU NETWORK COMMUNICATIONS, INC. , TIAN, Cechan , KINOSHITA, Susumu
发明人： TIAN, Cechan , KINOSHITA, Susumu
IPC分类号： H04B10/17
CPC分类号： H04B10/2942 , H01S3/1301
摘要： A method for correcting power tilt in an optical signal includes tapping off a representative portion of an optical signal and separating the representative portion into a first signal and a second signal. The first signal includes a first wavelength band and the second signal includes a second wavelength band different from the first wavelength band, wherein each wavelength band includes more than one channel. The method also includes detecting a power level of the first signal, detecting a power level of the second signal, and comparing the power levels of the first and second signais. The method further includes determining a power tilt for the optical signal based on the comparison and adjusting an amplifier gain based on the power tilt.
摘要翻译：一种用于校正光信号中的功率倾斜的方法包括：抽出光信号的代表部分，并将代表部分分离成第一信号和第二信号。第一信号包括第一波长带，第二信号包括不同于第一波长带的第二波长带，其中每个波长带包括多个信道。该方法还包括检测第一信号的功率电平，检测第二信号的功率电平，以及比较第一和第二信号的功率电平。该方法还包括基于比较确定光信号的功率倾斜并且基于功率倾斜来调整放大器增益。

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