公开(公告)号：US08229254B2

公开(公告)日：2012-07-24

申请号：US12271780

申请日：2008-11-14

申请人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

发明人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

IPC分类号： G02B6/00

CPC分类号： H04B10/2569

摘要： In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.

公开(公告)号：US20080095538A1

公开(公告)日：2008-04-24

申请号：US11585659

申请日：2006-10-24

申请人： Er'el Granot ,  Roni Dadon ,  Motti Caspi ,  Reuven Zaibel ,  Shai Tzadok ,  Shalva Ben-Ezra ,  Yaniv Sadka ,  Arieh Sher ,  Sagie Tsadka

发明人： Er'el Granot ,  Roni Dadon ,  Motti Caspi ,  Reuven Zaibel ,  Shai Tzadok ,  Shalva Ben-Ezra ,  Yaniv Sadka ,  Arieh Sher ,  Sagie Tsadka

IPC分类号： H04B10/00

CPC分类号： H04B10/29 ,  H04B10/2513 ,  H04B10/2569

摘要： Optical transponders with reduced sensitivity to PMD and CD are described. In one embodiment, an optical transponder comprises a differential group delay (DGD) mitigator integrated within the transponder and optically coupled to an optical input port of the optical transponder, an optical receiver integrated within the optical transponder and optically coupled to the DGD mitigator and to an electrical output port of the transponder, and a multi-level transmitter integrated within the optical transponder, where the multi-level transmitter is electrically coupled to an electrical input port and optically coupled to an optical output port of the transponder. In another embodiment, a method comprises receiving and processing an optical input signal using a DGD mitigator integrated within an optical transponder, and receiving an electrical input signal, narrowing the spectrum of the electrical input signal, converting the electrical input signal into an optical output signal, and transmitting the optical output signal.

摘要翻译： 描述了对PMD和CD灵敏度降低的光学应答器。 在一个实施例中，光学应答器包括集成在应答器内并且光学耦合到光学应答器的光学输入端口的差分组延迟（DGD）缓冲器，集成在光学应答器内并光学耦合到DGD缓冲器的光学接收器， 应答器的电输出端口以及集成在光转发器内的多电平发射器，其中多电平发射器电耦合到电输入端口并且光学耦合到转发器的光输出端口。 在另一个实施例中，一种方法包括使用集成在光转发器内的DGD缓冲器来接收和处理光输入信号，以及接收电输入信号，缩小电输入信号的频谱，将电输入信号转换为光输出信号 ，并发送光输出信号。

公开(公告)号：US20110142445A1

公开(公告)日：2011-06-16

申请号：US13031560

申请日：2011-02-21

申请人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

发明人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

IPC分类号： H04B10/08

CPC分类号： H04B10/2569

摘要： In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.

摘要翻译： 在一个示例性实施例中，一种方法包括经由光学线路发射光信号，测量在时钟频率（或该频率的一半）附近的光学信号的光谱强度的相对变化，同时改变第一 偏振状态和第二极化状态，并使用光信号的光谱强度的相对变化来确定和校正光学线路的DGD。 另一种方法包括将通过光线行进的光信号分成具有光线路的第一和第二主要偏振态的第一和第二部分，将第一和第二部分转换成第一和第二电信号，延迟第二电 信号以产生补偿光线路的DGD的延迟电信号，以及将延迟的电信号与第一电信号组合以产生固定的输出电信号。

公开(公告)号：US20090080883A1

公开(公告)日：2009-03-26

申请号：US12272661

申请日：2008-11-17

申请人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

发明人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

IPC分类号： H04B10/08 ,  H04J14/06 ,  H04J14/08

CPC分类号： H04B10/2569

摘要： In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.

公开(公告)号：US08885985B2

公开(公告)日：2014-11-11

申请号：US13598478

申请日：2012-08-29

申请人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

发明人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

IPC分类号： G02B6/00 ,  H04B10/2569

CPC分类号： H04B10/2569

摘要： In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.

摘要翻译： 在一个示例性实施例中，一种方法包括经由光学线路发射光信号，测量在时钟频率（或该频率的一半）附近的光学信号的光谱强度的相对变化，同时改变第一 偏振状态和第二极化状态，并使用光信号的光谱强度的相对变化来确定和校正光学线路的DGD。 另一种方法包括将通过光线行进的光信号分成具有光线路的第一和第二主要偏振态的第一和第二部分，将第一和第二部分转换成第一和第二电信号，延迟第二电 信号以产生补偿光线路的DGD的延迟电信号，以及将延迟的电信号与第一电信号组合以产生固定的输出电信号。

公开(公告)号：US08260092B2

公开(公告)日：2012-09-04

申请号：US13031560

申请日：2011-02-21

申请人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

发明人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

IPC分类号： G02B6/00

CPC分类号： H04B10/2569

摘要： In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.

公开(公告)号：US07454092B2

公开(公告)日：2008-11-18

申请号：US11585651

申请日：2006-10-24

申请人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

发明人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

IPC分类号： G02B6/00

CPC分类号： H04B10/2569

摘要： In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.

摘要翻译： 在一个示例性实施例中，一种方法包括经由光学线路发射光信号，测量在时钟频率（或该频率的一半）附近的光学信号的光谱强度的相对变化，同时改变第一 偏振状态和第二极化状态，并使用光信号的光谱强度的相对变化来确定和校正光学线路的DGD。 另一种方法包括将通过光线行进的光信号分成具有光线路的第一和第二主要偏振态的第一和第二部分，将第一和第二部分转换成第一和第二电信号，延迟第二电 信号以产生补偿光线路的DGD的延迟电信号，以及将延迟的电信号与第一电信号组合以产生固定的输出电信号。

公开(公告)号：US20080100846A1

公开(公告)日：2008-05-01

申请号：US11589276

申请日：2006-10-26

申请人： Sagie Tsadka ,  Niv Narkiss ,  Haim Chayet ,  Shalva Ben-Ezra ,  Er'el Granot ,  Reuven Zaibel ,  Arieh Sher ,  Shai Tzadok ,  Nir Shachar

发明人： Sagie Tsadka ,  Niv Narkiss ,  Haim Chayet ,  Shalva Ben-Ezra ,  Er'el Granot ,  Reuven Zaibel ,  Arieh Sher ,  Shai Tzadok ,  Nir Shachar

IPC分类号： G01B9/02

CPC分类号： G02F1/3519 ,  G02F2201/05 ,  H04B10/299

摘要： System and methods for all-optical signal regeneration based on free space optics are described. In one exemplary embodiment, a method for regenerating an optical signal comprises counter-propagating an input signal and a regenerating signal within an all-optical signal regenerator based on free space optics, where the all-optical signal regenerator based on free space optics comprises a Sagnac loop interferometer, and extracting a regenerated output signal from the Sagnac loop interferometer. In another exemplary embodiment, an all-optical signal regenerator based on free space optics comprises a Sagnac loop interferometer, an optical signal input path coupled to a semiconductor optical amplifier of the Sagnac loop interferometer, a regenerating optical signal path coupled to the semiconductor optical amplifier of the Sagnac loop interferometer, and a regenerated optical output path coupled to the Sagnac loop interferometer.

摘要翻译： 描述了基于自由空间光学的全光信号再生的系统和方法。 在一个示例性实施例中，用于再生光信号的方法包括基于自由空间光学器件在全光信号再生器内对输入信号和再生信号进行反向传播，其中基于自由空间光学的全光信号再生器包括 Sagnac环路干涉仪，并从Sagnac环路干涉仪提取再生的输出信号。 在另一示例性实施例中，基于自由空间光学的全光信号再生器包括Sagnac环路干涉仪，耦合到Sagnac环形干涉仪的半导体光放大器的光信号输入路径，耦合到半导体光放大器的再生光信号路径 的Sagnac环形干涉仪，以及耦合到Sagnac环形干涉仪的再生光学输出路径。

公开(公告)号：US20080095487A1

公开(公告)日：2008-04-24

申请号：US11585651

申请日：2006-10-24

申请人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

发明人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

IPC分类号： G02B6/00

CPC分类号： H04B10/2569

摘要： In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.

公开(公告)号：US20120321298A1

公开(公告)日：2012-12-20

申请号：US13598478

申请日：2012-08-29

申请人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

发明人： Er'el Granot ,  Shalva Ben-Ezra ,  Gil Blecher ,  Shai Tzadok ,  Reuven Zaibel ,  Roni Dadon ,  Motti Caspi ,  Haim Chayet ,  Yehuda Ganz ,  Arieh Sher

IPC分类号： H04B10/18 ,  H04B10/08

CPC分类号： H04B10/2569

摘要： In one exemplary embodiment, a method comprises transmitting an optical signal via the optical line, measuring a relative change in spectral intensity of the optical signal near a clock frequency (or half of that frequency) while varying a polarization of the optical signal between a first state of polarization and a second state of polarization, and using the relative change in spectral intensity of the optical signal to determine and correct the DGD of the optical line. Another method comprises splitting an optical signal traveling through the optical line into a first and second portions having a first and second principal states of polarization of the optical line, converting the first and second portions into a first and second electrical signals, delaying the second electrical signal to create a delayed electrical signal that compensates for a DGD of the optical line, and combining the delayed electrical signal with the first electrical signal to produce a fixed output electrical signal.

摘要翻译： 在一个示例性实施例中，一种方法包括经由光学线路发射光信号，测量在时钟频率（或该频率的一半）附近的光学信号的光谱强度的相对变化，同时改变第一 偏振状态和第二极化状态，并使用光信号的光谱强度的相对变化来确定和校正光学线路的DGD。 另一种方法包括将通过光线行进的光信号分成具有光线路的第一和第二主要偏振态的第一和第二部分，将第一和第二部分转换成第一和第二电信号，延迟第二电 信号以产生补偿光线路的DGD的延迟电信号，以及将延迟的电信号与第一电信号组合以产生固定的输出电信号。