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1. 发明授权

US07447441B2 Signal transmission apparatus and a method of signal transmission 失效
标题翻译：信号传输装置和信号传输方法
公开(公告)号：US07447441B2
公开(公告)日：2008-11-04
申请号：US10498607
申请日：2002-11-27
申请人： Steven Alleston , Paul Harper , Donald Govan , Nicholas John Doran
发明人： Steven Alleston , Paul Harper , Donald Govan , Nicholas John Doran
IPC分类号： H04B10/00 , H04B10/12
CPC分类号： H04B10/2572
摘要： An apparatus and method of transmitting a plurality of polarized signals having different wavelengths through a length of signal transmission cable which changes the polarization of the signals in correspondence with their amplitudes and wavelengths. A dynamic filter capable of differential adjustment of the amplitudes of the signals and a polarizing element are provided in series with the length of signal transmission cable and the amplitudes of the different wavelength signals are so adjusted that the polarization states of the signals move towards alignment with the low-loss axis of the polarizing element. An advantage provided by the apparatus and method is that the high-amplitude signals are aligned with the low-loss axis of the polarizing element while low-amplitude noise is aligned with the high-loss axis of the polarizing element, resulting in an improvement in signal-to-noise ratio.
摘要翻译：一种通过信号传输电缆的长度传输具有不同波长的多个偏振信号的设备和方法，该信号传输电缆根据其幅度和波长改变信号的极化。与信号传输电缆的长度串联地提供能够对信号幅度和偏振元件进行差分调节的动态滤波器，并且调整不同波长信号的振幅，使得信号的偏振状态朝向与偏振元件的低损耗轴。通过该装置和方法提供的优点是，高振幅信号与偏振元件的低损耗轴对准，而低振幅噪声与偏振元件的高损耗轴对准，导致改善信噪比。

2. 发明申请

US20050226632A1 Signal transmission apparatus and a method of signal transmission 失效
标题翻译：信号传输装置和信号传输方法
公开(公告)号：US20050226632A1
公开(公告)日：2005-10-13
申请号：US10498607
申请日：2002-11-27
申请人： Steven Alleston , Paul Harper , Donald Govan , Nicholas Doran
发明人： Steven Alleston , Paul Harper , Donald Govan , Nicholas Doran
IPC分类号： H04B10/2507 , H04J14/00 , H04J14/02 , H04B10/00
CPC分类号： H04B10/2572
摘要： An apparatus and method of transmitting a plurality of polarized signals having different wavelengths through a length of signal transmission cable which changes the polarization of the signals in correspondence with their amplitudes and wavelengths. A dynamic filter capable of differential adjustment of the amplitudes of the signals and a polarizing element are provided in series with the length of signal transmission cable and the amplitudes of the different wavelength signals are so adjusted that the polarization states of the signals move towards alignment with the low-loss axis of the polarizing element. An advantage provided by the apparatus and method is that the high-amplitude signals are aligned with the low-loss axis of the polarizing element while low-amplitude noise is aligned with the high-loss axis of the polarizing element, resulting in an improvement in signal-to-noise ratio.
摘要翻译：一种通过信号传输电缆的长度传输具有不同波长的多个偏振信号的设备和方法，该信号传输电缆根据其幅度和波长改变信号的极化。与信号传输电缆的长度串联地提供能够对信号幅度和偏振元件进行差分调节的动态滤波器，并且调整不同波长信号的振幅，使得信号的偏振状态朝向与偏振元件的低损耗轴。通过该装置和方法提供的优点是，高振幅信号与偏振元件的低损耗轴对准，而低振幅噪声与偏振元件的高损耗轴对准，导致改善信噪比。

3. 发明授权

US07734186B2 Signal transmission in an optical system 失效
标题翻译：光学系统中的信号传输
公开(公告)号：US07734186B2
公开(公告)日：2010-06-08
申请号：US10490039
申请日：2002-09-17
申请人： Marc Francis Charles Stephens , Steven Alleston , Nicholas John Doran
发明人： Marc Francis Charles Stephens , Steven Alleston , Nicholas John Doran
IPC分类号： H04B10/00
CPC分类号： H04B10/2916 , H01S3/302
摘要： A method of reducing Raman tilt in a transmission apparatus capable of transmitting a plurality of signals, occupying contiguous channels in a transmission band, through a length of optical transmission cable which exhibits the Raman effect of transferring energy from the shorter wavelength signals at one end of the transmission band towards the longer wavelength signals at the other end of the transmission band, including the transmission of half the maximum number of signals at twice the normal channel frequency spacing at a higher-than-normal level and the transmission signals in selected ones, fewer than all, of the available channels at the normal channel spacing at a normal power level. As new channels are added at the lower frequency channel spacing, the powers of both neighboring channels are reduced to the normal power level.
摘要翻译：一种降低传输装置中的拉曼倾斜的方法，该传输装置能够通过一长度的光传输电缆传输多个信号，占据传输频带中的连续信道，该长度的光传输电缆显示出拉曼效应，该效应从短波长信号的一端传输能量传输频带朝向传输频带另一端的较长波长的信号，包括以高于正常电平的两倍于正常信道频率间隔的传输信号的最大数量的一半，以及所选信号中的传输信号，在正常功率水平下以正常信道间隔的可用信道少于全部。由于在较低的频道间隔增加了新的频道，所以两个相邻频道的功率降低到正常功率电平。

4. 发明申请

US20050226638A1 Optical signal transmission 有权
标题翻译：光信号传输
公开(公告)号：US20050226638A1
公开(公告)日：2005-10-13
申请号：US10491400
申请日：2002-09-11
申请人： Derek Nesset , Steven Alleston , Paul Harper , Benoit Charbonnier
发明人： Derek Nesset , Steven Alleston , Paul Harper , Benoit Charbonnier
IPC分类号： H04J14/00 , H04B10/50 , H04J14/02 , H04B10/04
CPC分类号： H04J14/02 , H04B10/506
摘要： An optical signal transmission apparatus for transmitting a plurality of data signals comprising a plurality of inputs for receiving a respective one of the data signals and delivering the respective data signal with a controlled phase and at a controlled data rate. A plurality of optical carrier signals having different wavelength is generated. Each of a plurality of first modulators is operative for modulating a respective one of the optical carriers with a respective data signal to provide a first-modulated optical carrier signal. An optical signal-routing device has a plurality of input ports, each port being for receiving a respective one of the first-modulated optical carrier signals and delivering it to the output port of the device. The apparatus further comprises further modulators for further modulating each of the first-modulated optical carrier signals in dependence upon a clock to provide a plurality of further-modulated optical carrier signals; and a feedback arrangement, including the optical signal-routing device, for feeding back a proportion of each of the further modulated optical carrier signals to a respective input for controlling the phase and rates at which the input delivers the data signal to the first modulator in dependence upon the further modulation to thereby synchronize each input data signal to the clock. The optical signal-routing device delivers each of the further-modulated signals applied to its output to a respective input along a path which is dependent upon the wavelength of the signal.
摘要翻译：一种光信号传输装置，用于传输包括多个输入的多个数据信号，用于接收相应的一个数据信号，并以受控的相位和受控的数据速率传送相应的数据信号。产生具有不同波长的多个光载波信号。多个第一调制器中的每一个可操作用于用相应的数据信号调制相应的一个光载波以提供第一调制的光载波信号。光信号路由设备具有多个输入端口，每个端口用于接收第一调制光载波信号中的相应一个并将其传送到设备的输出端口。该装置还包括另外的调制器，用于根据时钟进一步调制每个第一调制光载波信号以提供多个进一步调制的光载波信号; 以及包括光信号路由装置的反馈装置，用于将每个进一步调制的光载波信号的一部分的一部分反馈到相应的输入端，用于控制输入端将数据信号传送到第一调制器的相位和速率依赖于进一步的调制，从而使每个输入数据信号与时钟同步。光信号路由设备将施加到其输出的每个进一步调制的信号沿着取决于信号的波长的路径递送到相应的输入端。

5. 发明授权

US07336906B2 Optical signal transmission 有权
标题翻译：光信号传输
公开(公告)号：US07336906B2
公开(公告)日：2008-02-26
申请号：US10491400
申请日：2002-09-11
申请人： Derek Nesset , Steven Alleston , Paul Harper , Benoit Charbonnier
发明人： Derek Nesset , Steven Alleston , Paul Harper , Benoit Charbonnier
IPC分类号： H04B10/00
CPC分类号： H04J14/02 , H04B10/506
摘要： An optical signal transmission apparatus for transmitting a plurality of data signals comprising a plurality of inputs for receiving a respective one of the data signals and delivering the respective data signal with a controlled phase and at a controlled data rate. A plurality of optical carrier signals having different wavelength is generated. Each of a plurality of first modulators is operative for modulating a respective one of the optical carriers with a respective data signal to provide a first-modulated optical carrier signal. An optical signal-routing device has a plurality of input ports, each port being for receiving a respective one of the first-modulated optical carrier signals and delivering it to the output port of the device. The apparatus further comprises further modulators for further modulating each of the first-modulated optical carrier signals in dependence upon a clock to provide a plurality of further-modulated optical carrier signals; and a feedback arrangement, including the optical signal-routing device, for feeding back a proportion of each of the further modulated optical carrier signals to a respective input for controlling the phase and rates at which the input delivers the data signal to the first modulator in dependence upon the further modulation to thereby synchronize each input data signal to the clock. The optical signal-routing device delivers each of the further-modulated signals applied to its output to a respective input along a path which is dependent upon the wavelength of the signal.
摘要翻译：一种光信号传输装置，用于传输包括多个输入的多个数据信号，用于接收相应的一个数据信号，并以受控的相位和受控的数据速率传送相应的数据信号。产生具有不同波长的多个光载波信号。多个第一调制器中的每一个可操作用于用相应的数据信号调制相应的一个光载波以提供第一调制的光载波信号。光信号路由设备具有多个输入端口，每个端口用于接收第一调制光载波信号中的相应一个并将其传送到设备的输出端口。该装置还包括另外的调制器，用于根据时钟进一步调制每个第一调制光载波信号以提供多个进一步调制的光载波信号; 以及包括光信号路由装置的反馈装置，用于将每个进一步调制的光载波信号的一部分的一部分反馈到相应的输入端，用于控制输入端将数据信号传送到第一调制器的相位和速率依赖于进一步的调制，从而使每个输入数据信号与时钟同步。光信号路由设备将施加到其输出的每个进一步调制的信号沿着取决于信号的波长的路径递送到相应的输入端。

6. 发明授权

US07738163B2 Optical transmission system 失效
标题翻译：光传输系统
公开(公告)号：US07738163B2
公开(公告)日：2010-06-15
申请号：US10545392
申请日：2004-01-29
申请人： Stuart Bidmead , Steven Alleston , Anthony Walsh
发明人： Stuart Bidmead , Steven Alleston , Anthony Walsh
IPC分类号： H01S3/00
CPC分类号： H04B10/2916 , H04B10/0775
摘要： In an optical transmission system for transmission of data along an optical fiber link, a receiver for an optical supervisory channel is capable of detecting data at a lower rate at which a Raman pump is enabled, and at a higher rate which is commenced when the higher power of a Raman amplified signal has been received.
摘要翻译：在用于沿着光纤链路传输数据的光传输系统中，用于光监控信道的接收机能够以较低的拉曼泵启动速率检测数据，并且以更高的速率开始，已经接收到拉曼放大信号的功率。

7. 发明申请

US20060269287A1 Optical transmission system 失效
标题翻译：光传输系统
公开(公告)号：US20060269287A1
公开(公告)日：2006-11-30
申请号：US10545392
申请日：2004-01-29
申请人： Stuart Bidmead , Steven Alleston , Anthony Walsh
发明人： Stuart Bidmead , Steven Alleston , Anthony Walsh
IPC分类号： H04B10/00
CPC分类号： H04B10/2916 , H04B10/0775
摘要： In an optical transmission system for transmission of data along an optical fiber link, a receiver for an optical supervisory channel is capable of detecting data at a lower rate at which a Raman pump is enabled, and at a higher rate which is commenced when the higher power of a Raman amplified signal has been received.
摘要翻译：在用于沿着光纤链路传输数据的光传输系统中，用于光监控信道的接收机能够以较低的拉曼泵启动速率检测数据，并且以更高的速率开始，已经接收到拉曼放大信号的功率。

8. 发明申请

US20050128568A1 Signal transmission in an optical system 失效
标题翻译：光学系统中的信号传输
公开(公告)号：US20050128568A1
公开(公告)日：2005-06-16
申请号：US10490039
申请日：2002-09-17
申请人： Marc Stephens , Steven Alleston , Nicholas Doran
发明人： Marc Stephens , Steven Alleston , Nicholas Doran
IPC分类号： G02F1/35 , H01S3/10 , H01S3/30 , H04B10/291 , H04J14/00 , H04J14/02 , H01S3/00
CPC分类号： H04B10/2916 , H01S3/302
摘要： A method of reducing Raman tilt in a transmission apparatus capable of transmitting a plurality of signals, occupying contiguous channels in a transmission band, through a length of optical transmission cable which exhibits the Raman effect of transferring energy from the shorter wavelength signals at one end of the transmission band towards the longer wavelength signals at the other end of the transmission band, including the transmission of half the maximum number of signals at twice the normal channel frequency spacing at a higher-than-normal level and the transmission signals in selected ones, fewer than all, of the available channels at the normal channel spacing at a normal power level. As new channels are added at the lower frequency channel spacing, the powers of both neighboring channels are reduced to the normal power level.
摘要翻译：一种降低传输装置中的拉曼倾斜的方法，该传输装置能够通过一长度的光传输电缆传输多个信号，占据传输频带中的连续信道，该长度的光传输电缆显示出拉曼效应，其来自短波长信号的一端的能量传输频带朝向传输频带另一端的较长波长的信号，包括以高于正常电平的两倍于正常信道频率间隔的传输信号的最大数量的一半，以及所选信号中的传输信号，在正常功率水平下以正常信道间隔的可用信道少于全部。由于在较低的频道间隔增加了新的频道，所以两个相邻频道的功率降低到正常功率电平。

9. 发明授权

US07174097B2 Method and an apparatus for signal transmission 有权
标题翻译：用于信号传输的方法和装置
公开(公告)号：US07174097B2
公开(公告)日：2007-02-06
申请号：US10498606
申请日：2002-11-27
申请人： Steven Alleston , Liam Gleeson , Tim Ellingham , Tony Walsh
发明人： Steven Alleston , Liam Gleeson , Tim Ellingham , Tony Walsh
IPC分类号： H04B10/08 , H04B17/00 , H01S3/00
CPC分类号： H04B10/296 , H04B10/2916
摘要： A method and apparatus for transmitting a plurality of signals having different wavelengths through a length of optical cable which is caused to provide distributed gain by being subjected to Raman pumping at a plurality of pump wavelengths, the power levels of the pump signals being in a set ratio or ratios for providing, preferably, a flat gain profile over the range of wavelengths of the plurality of signals, the set power levels of the pump signals being determined from the measured effects of the pump signals on a probe signal and in relation to the wavelength separations among the probe signal, the pump signals and the plurality of signals having different wavelengths.
摘要翻译：一种用于通过光缆长度传输具有不同波长的多个信号的方法和装置，其通过在多个泵波长处经受拉曼泵浦而提供分布增益，所述泵浦信号的功率电平处于一组比率或比率，优选地在多个信号的波长范围内提供平坦增益分布，泵浦信号的设定功率电平根据所测量的泵浦信号对探测信号的影响而确定，并且相对于探测信号，泵浦信号和具有不同波长的多个信号之间的波长分离。

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