公开(公告)号：US06856767B2

公开(公告)日：2005-02-15

申请号：US09837855

申请日：2001-04-18

申请人： Mohammad Laham ,  Raj Acharya ,  Roman Antosik ,  Jayantha Das ,  Bharat Dave ,  Chinnabbu Ekambaram ,  Khem Gandhi ,  Frank Hujber ,  David Lowe ,  Frederick Renner ,  Jiten Sarathy ,  Ronald Simprini ,  Boris Stefanov ,  Tan Thai ,  Ravi Vora

发明人： Mohammad Laham ,  Raj Acharya ,  Roman Antosik ,  Jayantha Das ,  Bharat Dave ,  Chinnabbu Ekambaram ,  Khem Gandhi ,  Frank Hujber ,  David Lowe ,  Frederick Renner ,  Jiten Sarathy ,  Ronald Simprini ,  Boris Stefanov ,  Tan Thai ,  Ravi Vora

IPC分类号： H04B10/08 ,  H04J14/02 ,  H04Q11/00

CPC分类号： H04Q11/0005 ,  H04B10/077 ,  H04B10/07955 ,  H04J14/0227 ,  H04J14/0297 ,  H04Q2011/0043 ,  H04Q2011/0083

摘要： The present invention provides an optical signal quality selection system for optimizing the quality of information transmission. The system splits an incoming optical signal into two equal signals. The split signals are evaluated in optical performance monitors, transmitting an electrical output message to a signal selector relating to the quality of the respective signal. A second electrical message is sent from the optical performance generator to an alarm indicator signal generator, which sends an optical signal to the signal selector to drop the one of the split signals and transmit the non-dropped split signal. An unequipped optical signal from an optical idle signal generator is triggered if no active optical signal is being transmitted.

摘要翻译： 本发明提供一种用于优化信息传输质量的光信号质量选择系统。 系统将输入的光信号分成两个相等的信号。 在光学性能监视器中评估分离信号，将电输出消息发送到与各个信号的质量有关的信号选择器。 从光学性能发生器发送第二个电子消息到报警指示符信号发生器，其向信号选择器发送光信号以丢弃分离信号之一并发送未丢弃的分离信号。 如果没有传输有效的光信号，则触发来自光空闲信号发生器的未装备的光信号。

公开(公告)号：US06724484B2

公开(公告)日：2004-04-20

申请号：US10195699

申请日：2002-07-15

申请人： Julio Martinez ,  Kwang Kim ,  Olga Nedzhvetskaya ,  Doruk Engin ,  Jiten Sarathy ,  Roman Antosik ,  Bharat Dave ,  Michael Evans ,  David Lidsky ,  Ronald Simprini ,  Boris Stefanov ,  Tan Thai

发明人： Julio Martinez ,  Kwang Kim ,  Olga Nedzhvetskaya ,  Doruk Engin ,  Jiten Sarathy ,  Roman Antosik ,  Bharat Dave ,  Michael Evans ,  David Lidsky ,  Ronald Simprini ,  Boris Stefanov ,  Tan Thai

IPC分类号： G01B902

CPC分类号： H04B10/299 ,  H04L7/0075

摘要： A method and circuit are presented for an all-optical format independent preprocessor that processes an arbitrary optical input signal by converting a NRZ signal to a PRZ signal, or if the input optical signal is RZ, by merely amplifying it. The method involves subtracting a delayed copy of the signal from the original, thereby effectively doubling its frequency, and inserting a pulse at each transition of the original signal, whether rising or falling. In a preferred embodiment this stage is implemented via an integrated SOA in each arm of an asymmetric interferometric device. The asymmetry consists of a delay element in one arm. In a preferred embodiment the entire device is fabricated on a semiconductor substrate, allowing for compactness as well as minimization of interconnectivity losses and overall power consumption. The output of the preprocessor, having a significant frequency component at its original clock rate, can then be fed to a clock recovery stage for all-optical clock recovery.

公开(公告)号：US06570697B2

公开(公告)日：2003-05-27

申请号：US09848968

申请日：2001-05-04

申请人： Julio Martinez ,  Kwang Kim ,  Olga Nedzhvetskaya ,  Doruk Engin ,  Jiten Sarathy ,  Roman Antosik ,  Bharat Dave ,  Michael Evans ,  David Lidsky ,  Ronald Simprini ,  Boris Stefanov ,  Tan Thai

发明人： Julio Martinez ,  Kwang Kim ,  Olga Nedzhvetskaya ,  Doruk Engin ,  Jiten Sarathy ,  Roman Antosik ,  Bharat Dave ,  Michael Evans ,  David Lidsky ,  Ronald Simprini ,  Boris Stefanov ,  Tan Thai

IPC分类号： G02B2600

CPC分类号： H04B10/299 ,  H04L7/0075

摘要： A method and circuit are presented for an all-optical format independent preprocessor that processes an arbitrary optical input signal by converting a NRZ signal to a PRZ signal, or if the input optical signal is RZ, by merely amplifying it. The method involves subtracting a delayed copy of the signal from the original, thereby effectively doubling its frequency, and inserting a pulse at each transition of the original signal, whether rising or falling. In a preferred embodiment this stage is implemented via an integrated SOA in each arm of an asymmetric interferometric device. The asymmetry consists of a delay element in one arm. In a preferred embodiment the entire device is fabricated on a semiconductor substrate, allowing for compactness as well as minimization of interconnectivity losses and overall power consumption. The output of the preprocessor, having a significant frequency component at its original clock rate, can then be fed to a clock recovery stage for all-optical clock recovery.

公开(公告)号：US06646794B2

公开(公告)日：2003-11-11

申请号：US10195264

申请日：2002-07-15

申请人： Julio Martinez ,  Kwang Kim ,  Olga Nedzhvetskaya ,  Doruk Engin ,  Jiten Sarathy ,  Bharat Dave ,  Ronald Simprini ,  Boris Stefanov ,  Tan Thai

发明人： Julio Martinez ,  Kwang Kim ,  Olga Nedzhvetskaya ,  Doruk Engin ,  Jiten Sarathy ,  Bharat Dave ,  Ronald Simprini ,  Boris Stefanov ,  Tan Thai

IPC分类号： H01S300

CPC分类号： H04B10/299 ,  H04L7/0075

摘要： A method and circuit are presented for an all-optical format independent preprocessor that processes an arbitrary optical input signal by converting a NRZ signal to a PRZ signal, or if the input optical signal is RZ, by merely amplifying it. The method involves subtracting a delayed copy of the signal from the original, thereby effectively doubling its frequency, and inserting a pulse at each transition of the original signal, whether rising or falling. In a preferred embodiment this stage is implemented via an integrated SOA in each arm of an asymmetric interferometric device. The asymmetry consists of a delay element in one arm. In a preferred embodiment the entire device is fabricated on a semiconductor substrate, allowing for compactness as well as minimization of interconnectivity losses and overall power consumption. The output of the preprocessor, having a significant frequency component at its original clock rate, can then be fed to a clock recovery stage for all-optical clock recovery.

公开(公告)号：US06727991B2

公开(公告)日：2004-04-27

申请号：US10195701

申请日：2002-07-15

申请人： Julio Martinez ,  Kwang Kim ,  Olga Nedzhvetskaya ,  Doruk Engin ,  Jiten Sarathy ,  Roman Antosik ,  Bharat Dave ,  Michael Evans ,  David Lidsky ,  Ronald Simprini ,  Boris Stefanov ,  Tan Thai

发明人： Julio Martinez ,  Kwang Kim ,  Olga Nedzhvetskaya ,  Doruk Engin ,  Jiten Sarathy ,  Roman Antosik ,  Bharat Dave ,  Michael Evans ,  David Lidsky ,  Ronald Simprini ,  Boris Stefanov ,  Tan Thai

IPC分类号： G01B902

CPC分类号： H04B10/299 ,  H04L7/0075

摘要： A method and circuit are presented for an all-optical format independent preprocessor that processes an arbitrary optical input signal by converting a NRZ signal to a PRZ signal, or if the input optical signal is RZ, by merely amplifying it. The method involves subtracting a delayed copy of the signal from the original, thereby effectively doubling its frequency, and inserting a pulse at each transition of the original signal, whether rising or falling. In a preferred embodiment this stage is implemented via an integrated SOA in each arm of an asymmetric interferometric device. The asymmetry consists of a delay element in one arm. In a preferred embodiment the entire device is fabricated on a semiconductor substrate, allowing for compactness as well as minimization of interconnectivity losses and overall power consumption. The output of the preprocessor, having a significant frequency component at its original clock rate, can then be fed to a clock recovery stage for all-optical clock recovery.

摘要翻译： 提出了一种用于全光学格式独立预处理器的方法和电路，其通过仅将其放大来将NRZ信号转换为PRZ信号或者输入光信号是RZ来处理任意的光输入信号。 该方法包括从原始信号中减去信号的延迟副本，从而有效地使其频率加倍，并且在原始信号的每个转换处插入脉冲，无论是上升还是下降。 在优选实施例中，该阶段通过不对称干涉仪装置的每个臂中的集成SOA来实现。 不对称性由一个臂中的延迟元件组成。 在优选实施例中，整个器件制造在半导体衬底上，允许紧凑性以及最小化互连损耗和总功耗。 然后，具有其原始时钟速率的显着频率分量的预处理器的输出可以被馈送到用于全光时钟恢复的时钟恢复阶段。