专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08532499B2 Optical transmitter with adaptively controlled optically linearized modulator 有权
标题翻译：具有自适应控制光学线性调制器的光发射机
公开(公告)号：US08532499B2
公开(公告)日：2013-09-10
申请号：US12428935
申请日：2009-04-23
申请人： John W. Caton , Joseph Hober , John Klima , Gustav Witzel
发明人： John W. Caton , Joseph Hober , John Klima , Gustav Witzel
IPC分类号： H04B10/00 , G02F1/07
CPC分类号： H04B10/50572 , H04B10/5051 , H04B10/50575 , H04B10/58
摘要： An optical transmitter for generating a modulated optical signal to be transmitted over fiber optical link. The transmitter includes: an optical source for producing an optical signal; an optically linearized modulator (OLM) as external modulator for modulating the optical signal produced by the optical source with an information carrying signal. The external modulator includes a first input port for receiving a first DC bias signal, and a second input port for receiving a second DC bias signal. The optical transmitter further includes a pilot tone generator for generating a first pilot signal to be applied to the first input port and a second pilot signal to be applied to the second input port. The first and second pilot signals are capable of producing distortion products in the modulated optical signal. A differential modulation signal is imposed onto either the first pilot signal or the second pilot signal so as to generate a first control signal that alternately adjusts the first DC bias signal and the second DC bias signal in order to minimize the distortion products. The optical transmitter may include a digital based control system that is adapted to reduce composite even and odd order distortions in the OLM.
摘要翻译：一种光发送器，用于产生经由光纤链路传输的调制光信号。发射机包括：用于产生光信号的光源; 作为外部调制器的光学线性化调制器（OLM），用于利用信息携带信号调制由光源产生的光信号。外部调制器包括用于接收第一DC偏置信号的第一输入端口和用于接收第二DC偏置信号的第二输入端口。光发射机还包括导频音产生器，用于产生要施加到第一输入端口的第一导频信号和要施加到第二输入端口的第二导频信号。第一和第二导频信号能够在调制的光信号中产生失真产物。将差分调制信号施加到第一导频信号或第二导频信号上，以产生交替调整第一直流偏置信号和第二直流偏置信号的第一控制信号，以便最小化失真产物。光发射机可以包括基于数字的控制系统，其适于减少OLM中的复数均匀和奇数阶失真。

2. 发明授权

US07463802B2 Integrated circuit for adjusting bias in optical transmitter with external modulator 有权
标题翻译：用于调整带有外部调制器的光发射机偏置的集成电路
公开(公告)号：US07463802B2
公开(公告)日：2008-12-09
申请号：US11332641
申请日：2006-01-13
申请人： Gustav Witzel
发明人： Gustav Witzel
IPC分类号： G02B6/44 , G02B6/12 , G02B26/00 , H04B10/04
CPC分类号： H04B10/50575 , H04B10/505 , H04B10/58
摘要： An integrated circuit microcontroller for use in an optical transmitter that generates a modulated optical signal for transmission over dispersive fiber optic links in which a broadband radio frequency signal input is applied to first and second RF inputs of an external modulator for modulating the output of a semiconductor laser. The single integrated circuit is a digital signal processor that performs analog to digital conversion, digital processing, and digital to analog conversion, for producing an analog signals coupled to the input of the modulator, the circuit independently adjusts the DC bias of the first and second RF inputs to control a characteristic of the optical signal, such as noise associated with composite second order (CSO) distortion as a remote receiver.
摘要翻译：一种用于光发射机的集成电路微控制器，其生成用于在分散光纤链路上传输的调制光信号，其中宽带射频信号输入被施加到用于调制半导体的输出的外部调制器的第一和第二RF输入激光。单个集成电路是执行模数转换，数字处理和数模转换的数字信号处理器，用于产生耦合到调制器输入端的模拟信号，该电路独立调节第一和第二转换器的直流偏置 RF输入以控制光信号的特性，例如与作为远程接收机的复合二阶（CSO）失真相关联的噪声。

3. 发明授权

US08705983B2 Radio frequency optical communication system 有权
标题翻译：射频光通信系统
公开(公告)号：US08705983B2
公开(公告)日：2014-04-22
申请号：US13072531
申请日：2011-03-25
申请人： Ronald T. Logan, Jr. , Eva Peral , Patrick J. Cawthorne , Gustav Witzel , Frank Weiss
发明人： Ronald T. Logan, Jr. , Eva Peral , Patrick J. Cawthorne , Gustav Witzel , Frank Weiss
IPC分类号： H04B10/04 , H04B10/06
CPC分类号： H04B10/25759
摘要： An optical communication system for generating and transmitting a modulated optical signal in which light emitted by a light source is modulated by an optical modulator in accordance with an input electrical signal. A bias signal generator applies a bias electrical signal to bias the optical modulator at a bias angle away from quadrature. The bias signal generator monitors the input electrical signal and adjusts the applied bias electrical signal in dependence on the input electrical signal. The system further includes a receiver which may include an equalizer coupled to the photodetector of the receiver.
摘要翻译：一种光通信系统，用于产生和发送调制光信号，其中由光源发射的光根据输入的电信号被光调制器调制。偏置信号发生器施加偏置电信号以偏离正交的偏置角度偏置光调制器。偏置信号发生器监视输入电信号，并根据输入的电信号调整施加的偏置电信号。该系统还包括可以包括耦合到接收器的光电检测器的均衡器的接收器。

4. 发明申请

US20120243874A1 Radio Frequency Optical Communication System 有权
标题翻译：射频光通信系统
公开(公告)号：US20120243874A1
公开(公告)日：2012-09-27
申请号：US13072531
申请日：2011-03-25
申请人： Ronald T. Logan, JR. , Eva Peral , Patrick J. Cawthorne , Gustav Witzel , Frank Weiss
发明人： Ronald T. Logan, JR. , Eva Peral , Patrick J. Cawthorne , Gustav Witzel , Frank Weiss
IPC分类号： H04B10/00 , H04B10/06 , H04B10/04
CPC分类号： H04B10/25759
摘要： An optical communication system for generating and transmitting a modulated optical signal in which light emitted by a light source is modulated by an optical modulator in accordance with an input electrical signal. A bias signal generator applies a bias electrical signal to bias the optical modulator at a bias angle away from quadrature. The bias signal generator monitors the input electrical signal and adjusts the applied bias electrical signal in dependence on the input electrical signal. The system further includes a receiver which may include an equalizer coupled to the photodetector of the receiver.
摘要翻译：一种光通信系统，用于产生和发送调制光信号，其中由光源发射的光根据输入的电信号被光调制器调制。偏置信号发生器施加偏置电信号以偏离正交的偏置角度偏置光调制器。偏置信号发生器监视输入电信号，并根据输入的电信号调整施加的偏置电信号。该系统还包括可以包括耦合到接收器的光电检测器的均衡器的接收器。

5. 发明申请

US20090232518A1 OPTICAL TRANSMITTER WITH ADAPTIVELY CONTROLLED OPTICALLY LINEARIZED MODULATOR 有权
标题翻译：具有自适应光控直线调制器的光学发射器
公开(公告)号：US20090232518A1
公开(公告)日：2009-09-17
申请号：US12428935
申请日：2009-04-23
申请人： John W. Caton , Joseph Hober , John Klima , Gustav Witzel
发明人： John W. Caton , Joseph Hober , John Klima , Gustav Witzel
IPC分类号： H04B10/04
CPC分类号： H04B10/50572 , H04B10/5051 , H04B10/50575 , H04B10/58
摘要： An optical transmitter for generating a modulated optical signal to be transmitted over fiber optical link. The transmitter includes: an optical source for producing an optical signal; an optically linearized modulator (OLM) as external modulator for modulating the optical signal produced by the optical source with an information carrying signal. The external modulator includes a first input port for receiving a first DC bias signal, and a second input port for receiving a second DC bias signal. The optical transmitter further includes a pilot tone generator for generating a first pilot signal to be applied to the first input port and a second pilot signal to be applied to the second input port. The first and second pilot signals are capable of producing distortion products in the modulated optical signal. A differential modulation signal is imposed onto either the first pilot signal or the second pilot signal so as to generate a first control signal that alternately adjusts the first DC bias signal and the second DC bias signal in order to minimize the distortion products. The optical transmitter may include a digital based control system that is adapted to reduce composite even and odd order distortions in the OLM.
摘要翻译：一种光发送器，用于产生经由光纤链路传输的调制光信号。发射机包括：用于产生光信号的光源; 作为外部调制器的光学线性化调制器（OLM），用于利用信息携带信号调制由光源产生的光信号。外部调制器包括用于接收第一DC偏置信号的第一输入端口和用于接收第二DC偏置信号的第二输入端口。光发射机还包括导频音产生器，用于产生要施加到第一输入端口的第一导频信号和要施加到第二输入端口的第二导频信号。第一和第二导频信号能够在调制的光信号中产生失真产物。将差分调制信号施加到第一导频信号或第二导频信号上，以产生交替调整第一直流偏置信号和第二直流偏置信号的第一控制信号，以便最小化失真产物。光发射机可以包括基于数字的控制系统，其适于减少OLM中的复数均匀和奇数阶失真。

6. 发明申请

US20070165294A1 Integrated circuit for adjusting bias in optical transmitter with external modulator 有权
标题翻译：用于调整带有外部调制器的光发射机偏置的集成电路
公开(公告)号：US20070165294A1
公开(公告)日：2007-07-19
申请号：US11332641
申请日：2006-01-13
申请人： Gustav Witzel
发明人： Gustav Witzel
IPC分类号： G02F1/03 , H04B10/04
CPC分类号： H04B10/50575 , H04B10/505 , H04B10/58
摘要： An integrated circuit microcontroller for use in an optical transmitter that generates a modulated optical signal for transmission over dispersive fiber optic links in which a broadband radio frequency signal input is applied to first and second RF inputs of an external modulator for modulating the output of a semiconductor laser. The single integrated circuit is a digital signal processor that performs analog to digital conversion, digital processing, and digital to analog conversion, for producing an analog signals coupled to the input of the modulator, the circuit independently adjusts the DC bias of the first and second RF inputs to control a characteristic of the optical signal, such as noise associated with composite second order (CSO) distortion as a remote receiver.
摘要翻译：一种用于光发射机的集成电路微控制器，其生成用于在分散光纤链路上传输的调制光信号，其中宽带射频信号输入被施加到用于调制半导体的输出的外部调制器的第一和第二RF输入激光。单个集成电路是执行模数转换，数字处理和数模转换的数字信号处理器，用于产生耦合到调制器输入端的模拟信号，该电路独立调节第一和第二转换器的直流偏置 RF输入以控制光信号的特性，例如与作为远程接收机的复合二阶（CSO）失真相关联的噪声。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式