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1. 发明申请

WO2002065671A2 HYBRID CHANNEL COMMUNICATION 审中-公开
标题翻译：混合通道通信
公开(公告)号：WO2002065671A2
公开(公告)日：2002-08-22
申请号：PCT/GB2002/000611
申请日：2002-02-12
申请人： FUJITSU TELECOMMUNICATIONS EUROPE LTD , UNIVERSITY OF ESSEX , PARKER, Michael, Charles , WALKER, Stuart, Douglas
发明人： PARKER, Michael, Charles , WALKER, Stuart, Douglas
IPC分类号： H04B10/152
CPC分类号： H04B10/2504
摘要： There is provided a method for facilitating communication over a communications link. The link comprising a hybrid signal channel provided between two locations, the channel comprising a first portion (4) arranged for carrying electrical signals and a second portion (2) arranged for carrying optical signals. The method comprises the steps of: allowing application of electrical signals to the first portion (4) of the channel at a first of the two locations; receiving the electrical signals at an interface between the first and second portions of the channel; and applying signals to the second portion (2) of the channel using optical signal applying means (8). The step of applying signals to the second portion (2) includes the step of using the electrical signals received at the interface to modulate the output signal of the optical signal applying means (8).
摘要翻译：提供了一种促进通信链路上的通信的方法。所述链路包括设置在两个位置之间的混合信号信道，所述信道包括被布置用于承载电信号的第一部分（4）和被布置为承载光信号的第二部分（2）。该方法包括以下步骤：允许在两个位置的第一位置处将信号施加到信道的第一部分（4）; 在信道的第一和第二部分之间的接口处接收电信号; 以及使用光信号施加装置（8）将信号施加到信道的第二部分（2）。向第二部分（2）施加信号的步骤包括使用在接口处接收的电信号来调制光信号施加装置（8）的输出信号的步骤。

2. 发明申请

WO1996013083A1 BIAS CONTROLLER AND METHOD THEREFORE 审中-公开
标题翻译：偏置控制器及其方法
公开(公告)号：WO1996013083A1
公开(公告)日：1996-05-02
申请号：PCT/GB1995002499
申请日：1995-10-23
申请人： BT & D TECHNOLOGIES LTD. , WALKER, Stuart, Douglas
发明人： BT & D TECHNOLOGIES LTD.
IPC分类号： H01S03/133
CPC分类号： H01S5/0683 , H01S5/0014 , H01S5/06812
摘要： A bias controller for a semiconductor laser (23), for example, the laser (23) having a light output which exhibits a threshold at a threshold value of an input drive current, is disclosed. The bias controller includes a test signal generator arranged to generate a low frequency test signal which is the superposition of a modulated control signal on a DC bias signal which is applied to the laser (23) as a drive current superimposed on a high frequency data signal. A detector (36, 38) is arranged to determine the value of either the third harmonic component, or the second harmonic component, of the light output of the laser (23). A control means (50) is arranged to control the DC bias current to have a value close to the threshold value by maintaining the detected value of the harmonic component of the light output of the laser (23) near to a predetermined value.
摘要翻译：公开了一种用于半导体激光器（23）的偏置控制器，例如具有在输入驱动电流的阈值处呈现阈值的光输出的激光器（23）。该偏置控制器包括一个测试信号发生器，该测试信号发生器被安排成产生一个低频测试信号，该低频测试信号是调制控制信号叠加在加在激光器（23）上的直流偏置信号上，作为叠加在高频数据信号上的驱动电流。检测器（36,38）被布置成确定激光器（23）的光输出的三次谐波分量或二次谐波分量的值。控制装置（50）被布置成通过将激光器（23）的光输出的谐波分量的检测值保持在预定值附近来控制DC偏置电流的值接近于阈值。

3. 发明申请

WO03030410A3 COMPENSATOR FOR POLARISATION-MODE DISPERSION COMPENSATION 审中-公开
标题翻译：用于极化模式分散补偿的补偿器
公开(公告)号：WO03030410A3
公开(公告)日：2003-10-16
申请号：PCT/GB0204391
申请日：2002-09-27
申请人： FUJITSU LTD , PARKER MICHAEL CHARLES , WALKER STUART DOUGLAS
发明人： PARKER MICHAEL CHARLES , WALKER STUART DOUGLAS
IPC分类号： G02F1/01 , H04B10/2569 , H04B10/18
CPC分类号： H04B10/2569
摘要： A compensator for compensating polarisation-mode dispersion, comprises a splitter (30) arranged to split light, according to the light's polarisation, between a first optical path and a second optical path; a combiner (40) arranged to combine light from the first optical path and the second optical path, and a monitor (15) for monitoring the light. An active wavelength-delay device (70) is provided in the first optical path and arranged such that components of the light travelling in the first optical path and having different wavelengths are subjected to different delays, the delays being selected according to an output from the monitor (15).
摘要翻译：用于补偿偏振模色散的补偿器包括分配器（30），其被布置成根据光的偏振将光分离在第一光路和第二光路之间; 被配置为组合来自第一光路和第二光路的光的组合器（40），以及用于监视光的监视器（15）。在第一光路中提供有源波长延迟装置（70），使得在第一光路中传播并具有不同波长的光的分量经受不同的延迟，根据来自监视器（15）。

4. 发明申请

WO2003030410A2 A COMPENSATOR FOR POLARISATION-MODE DISPERSION COMPENSATION 审中-公开
标题翻译：用于极化模式分散补偿的补偿器
公开(公告)号：WO2003030410A2
公开(公告)日：2003-04-10
申请号：PCT/GB2002/004391
申请日：2002-09-27
申请人： FUJITSU NETWORK COMMUNICATIONS, INC. , PARKER, Michael, Charles , WALKER, Stuart, Douglas
发明人： PARKER, Michael, Charles , WALKER, Stuart, Douglas
IPC分类号： H04B10/18
CPC分类号： H04B10/2569
摘要： A compensator for compensating polarisation-mode dispersion, comprises a splitter (30) arranged to split light, according to the light's polarisation, between a first optical path and a second optical path; a combiner (40) arranged to combine light from the first optical path and the second optical path, and a monitor (15) for monitoring the light. An active wavelength-delay device (70) is provided in the first optical path and arranged such that components of the light travelling in the first optical path and having different wavelengths are subjected to different delays, the delays being selected according to an output from the monitor (15).
摘要翻译：用于补偿偏振模色散的补偿器包括分配器（30），其被布置成根据光的偏振将光分离在第一光路和第二光路之间; 被配置为组合来自第一光路和第二光路的光的组合器（40），以及用于监视光的监视器（15）。在第一光路中提供有源波长延迟装置（70），使得在第一光路中传播并具有不同波长的光的分量经受不同的延迟，根据来自监视器（15）。

5. 发明申请

WO02065671A3 HYBRID CHANNEL COMMUNICATION 审中-公开
标题翻译：混合信道通信
公开(公告)号：WO02065671A3
公开(公告)日：2002-12-19
申请号：PCT/GB0200611
申请日：2002-02-12
申请人： FUJITSU TELECOMM EUROP LTD , UNIV ESSEX , PARKER MICHAEL CHARLES , WALKER STUART DOUGLAS
发明人： PARKER MICHAEL CHARLES , WALKER STUART DOUGLAS
IPC分类号： H04B10/25 , H04B10/207 , H04N7/22
CPC分类号： H04B10/2504
摘要： There is provided a method for facilitating communication over a communications link. The link comprising a hybrid signal channel provided between two locations, the channel comprising a first portion (4) arranged for carrying electrical signals and a second portion (2) arranged for carrying optical signals. The method comprises the steps of: allowing application of electrical signals to the first portion (4) of the channel at a first of the two locations; receiving the electrical signals at an interface between the first and second portions of the channel; and applying signals to the second portion (2) of the channel using optical signal applying means (8). The step of applying signals to the second portion (2) includes the step of using the electrical signals received at the interface to modulate the output signal of the optical signal applying means (8).
摘要翻译：提供了一种用于促进通信链路上的通信的方法。所述链路包括设置在两个位置之间的混合信号信道，所述信道包括被布置为承载电信号的第一部分（4）和被布置为承载光信号的第二部分（2）。该方法包括以下步骤：允许在两个位置中的第一位置处将电信号施加到通道的第一部分（4）; 在信道的第一和第二部分之间的接口处接收电信号; 以及使用光信号施加装置（8）将信号施加到信道的第二部分（2）。将信号施加到第二部分（2）的步骤包括使用在接口处接收的电信号来调制光信号施加装置（8）的输出信号的步骤。

6. 发明申请

WO1997001202A1 LASER DRIVE CIRCUIT 审中-公开
标题翻译：激光驱动电路
公开(公告)号：WO1997001202A1
公开(公告)日：1997-01-09
申请号：PCT/GB1996001474
申请日：1996-06-20
申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY , WALKER, Stuart, Douglas
发明人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
IPC分类号： H01S03/133
CPC分类号： H01S5/06832
摘要： A laser diode (1) is driven by a first, integrating, amplifier (5) receiving a d.c. reference voltage Vref, input data Vin, and negative feedback from a back-facet photodiode (2), and by a second, wideband, amplifier receiving the data and the negative feedback.
摘要翻译：激光二极管（1）由接收直流电压的第一集成放大器（5）驱动。参考电压Vref，输入数据Vin和来自背面光电二极管（2）的负反馈，以及接收数据和负反馈的第二宽带放大器。

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