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    Method and apparatus for in-service optimization of the performance of an optical transmission system
    1.
    发明授权
    Method and apparatus for in-service optimization of the performance of an optical transmission system 失效
    用于光传输系统性能的在线优化的方法和装置

    公开(公告)号：US06697577B1

    公开(公告)日：2004-02-24

    申请号：US09431165

    申请日：1999-11-01

    申请人： Jinghui Li ,  Hugues Tournier ,  Joel Milgram ,  Suet Yuen ,  LeRoy Pick ,  Stephen Roberts ,  Bernard Thiboutot

    发明人： Jinghui Li ,  Hugues Tournier ,  Joel Milgram ,  Suet Yuen ,  LeRoy Pick ,  Stephen Roberts ,  Bernard Thiboutot

    IPC分类号： H04B1006

    CPC分类号： H04B10/695 ,  H04B2210/078

    摘要： A tuning system for use in a receiver of an optical transmission system. The receiver includes a data channel transporting a data signal and a monitoring channel transporting a copy of the data signal. The tuning system includes a processing module for processing the copy of the data signal to generate a control signal conveying tuning information. This tuning information is used by the receiver to alter an operating point of the receiver on the data channel. The operating point of the receiver that is susceptible to be altered by the control signal is a decision threshold applied on the data signal to discriminate one binary value from another binary value on the data channel of the receiver. This approach allows, when required or desired, tuning of the system while the system is in service. This is possible since the tuning of the system is performed using the monitoring channel, and does not disturb nor corrupt the actual data being transported on the data channel.

    摘要翻译： 一种用于光传输系统的接收机的调谐系统。 接收机包括传送数据信号的数据信道和传送数据信号的副本的监视信道。 调谐系统包括用于处理数据信号的副本以产生传送调谐信息的控制信号的处理模块。 该调谐信息被接收机用于改变数据信道上接收机的工作点。 容易被控制信号改变的接收机的工作点是施加在数据信号上的判定阈值，以将一个二进制值与接收机的数据信道上的另一个二进制值进行区分。 当需要或期望时，该方法允许在系统使用时调整系统。 这是可能的，因为系统的调谐是使用监视通道执行的，并且不会干扰或损坏在数据通道上传送的实际数据。

    WDM system equalization with EDFA optical amplifiers
    2.
    发明授权
    WDM system equalization with EDFA optical amplifiers 有权
    WDM系统均衡与EDFA光放大器

    公开(公告)号：US06323994B1

    公开(公告)日：2001-11-27

    申请号：US09289733

    申请日：1999-04-12

    申请人： Jinghui Li ,  Suet Yuen

    发明人： Jinghui Li ,  Suet Yuen

    IPC分类号： H04J1402

    CPC分类号： H04B10/2941 ,  H01S3/06754 ,  H04B10/2972 ,  H04B2210/256 ,  H04J14/0221

    摘要： An in-line repeater implemented within a Wavelength Division Multiplexed (WDM) optical fiber communication system is shown that includes an attenuator. The communication system includes a WDM multiplexer that transmits a WDM signal including a series of WDM channels, via the in-line repeater, to a demultiplexer that separates the WDM channels into a series of output signals. Within the in-line repeater, the attenuator is coupled between two stages of a single amplifier in order to aid in the power equalization of the WDM channels at the demultiplexer. The addition of the attenuator results in the powers and OSNR of the individual WDM channels becoming closer in value, hence reducing the time and the dynamic range of transmitter power adjustments required for traditional methods to equalize the channels' powers.

    摘要翻译： 示出了在波分复用（WDM）光纤通信系统中实现的在线中继器，其包括衰减器。 通信系统包括WDM复用器，其将包括一系列WDM信道的WDM信号经由直列中继器发送到将WDM信道分离成一系列输出信号的解复用器。 在同步中继器内，衰减器耦合在单个放大器的两级之间，以便于解复用器上的WDM信道的功率均衡。 衰减器的增加导致各个WDM信道的功率和OSNR变得越来越接近，从而减少传统方法所需的发射机功率调整的时间和动态范围，以平衡信道的功率。

    Optical interconnect apparatus and system
    3.
    发明授权
    Optical interconnect apparatus and system 有权

    公开(公告)号：US10823925B2

    公开(公告)日：2020-11-03

    申请号：US16656421

    申请日：2019-10-17

    申请人： Jinghui Li ,  Yuan Liu ,  Haiquan Zhang ,  Xiaodong Huang

    发明人： Jinghui Li ,  Yuan Liu ,  Haiquan Zhang ,  Xiaodong Huang

    IPC分类号： G02B6/44 ,  G02B6/42 ,  G02B6/38 ,  G02B6/43 ,  G02B6/293 ,  G02B5/28 ,  G02B6/32

    摘要： Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of fibers attached to a second end of the optical signal path via a second WDM filter, wherein at least the first set of fibers is a ribbon fiber. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus.

    OPTICAL INTERCONNECT APPARATUS AND SYSTEM
    4.
    发明申请
    OPTICAL INTERCONNECT APPARATUS AND SYSTEM 审中-公开

    公开(公告)号：US20200049918A1

    公开(公告)日：2020-02-13

    申请号：US16656443

    申请日：2019-10-17

    申请人： Jinghui Li ,  Yuan Liu ,  Haiquan Zhang ,  Xiaodong Huang

    发明人： Jinghui Li ,  Yuan Liu ,  Haiquan Zhang ,  Xiaodong Huang

    IPC分类号： G02B6/44 ,  G02B6/42 ,  G02B6/38 ,  G02B6/43 ,  G02B6/293 ,  G02B5/28

    摘要： Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of fibers attached to a second end of the optical signal path via a second WDM filter, wherein at least the first set of fibers is a ribbon fiber. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus.

    OPTICAL INTERCONNECT APPARATUS AND SYSTEM
    5.
    发明申请
    OPTICAL INTERCONNECT APPARATUS AND SYSTEM 审中-公开

    公开(公告)号：US20200049917A1

    公开(公告)日：2020-02-13

    申请号：US16656421

    申请日：2019-10-17

    申请人： Jinghui Li ,  Yuan Liu ,  Haiquan Zhang ,  Xiaodong Huang

    发明人： Jinghui Li ,  Yuan Liu ,  Haiquan Zhang ,  Xiaodong Huang

    IPC分类号： G02B6/44 ,  G02B6/42 ,  G02B6/38 ,  G02B6/43 ,  G02B6/293 ,  G02B5/28

    摘要： Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of fibers attached to a second end of the optical signal path via a second WDM filter, wherein at least the first set of fibers is a ribbon fiber. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus.

    Integrated optical dual amplifier
    8.
    发明授权
    Integrated optical dual amplifier 有权
    集成光学双放大器

    公开(公告)号：US07460298B2

    公开(公告)日：2008-12-02

    申请号：US10354064

    申请日：2003-01-30

    申请人： Jinghui Li ,  Genzao Zhang ,  Tongqing Wang ,  Tiangong Liu

    发明人： Jinghui Li ,  Genzao Zhang ,  Tongqing Wang ,  Tiangong Liu

    IPC分类号： H04B10/17 ,  H04B10/12

    CPC分类号： H04B10/2918 ,  H01S3/06704

    摘要： An apparatus is provided comprising a dual optical amplifier. The two optical amplifiers are integrated, in that they share at a set of optical, electrical, or opto-electrical components. The two optical amplifiers may share a pump laser. Alternatively, the optical amplifiers may share photo-detectors. Methods of controlling the signal strength of output signals are also provided. A chip-based integrated optical dual amplifier, using Erbium-Doped Waveguides, is also provided.

    摘要翻译： 提供了一种包括双光放大器的装置。 这两个光放大器是集成的，因为它们共享一组光，电或光电组件。 两个光放大器可以共享泵激光器。 或者，光放大器可以共享光检测器。 还提供了控制输出信号的信号强度的方法。 还提供了使用铒掺杂波导的基于芯片的集成光学双放大器。

    Multi-purpose BER tester (MPBERT) for very high RZ and NRZ signals
    10.
    发明授权
    Multi-purpose BER tester (MPBERT) for very high RZ and NRZ signals 失效
    用于非常高的RZ和NRZ信号的多用途BER测试仪（MPBERT）

    公开(公告)号：US06950972B2

    公开(公告)日：2005-09-27

    申请号：US09988059

    申请日：2001-11-16

    申请人： Tiangong Liu ,  Jinghui Li ,  Tongqing Wang

    发明人： Tiangong Liu ,  Jinghui Li ,  Tongqing Wang

    IPC分类号： G01R31/317 ,  G06F11/00 ,  H04B10/08

    CPC分类号： G01R31/3171

    摘要： A multi-purpose bit error rate tester (MPBERT) and a method of bit error rate (BER) testing of electrical and optical components and subsystems of electrical and optical communications systems is provided. The invention provides for bit error rate testing both in the optical and the electrical domain, and for bit error rate testing at higher than achievable rates in the electrical domain by multiplexing and demultiplexing in the optical domain. An MPBERT constructed according to the invention incorporates at least one optical multiplexer, and advantageously incorporates at least one optical demultiplexer, and in some embodiments uses high data rate optical RZ to NRZ conversion and high data rate optical NRZ to RZ conversion.

    摘要翻译： 提供了一种用于电气和光通信系统的电气和光学部件和子系统的多用途误码率测试仪（MPBERT）和误码率（BER）测试方法。 本发明提供了在光学和电学领域中的误码率测试以及通过在光学领域中的多路复用和解复用在电域中高于可实现速率的误码率测试。 根据本发明构造的MPBERT包括至少一个光复用器，并且有利地包括至少一个光解复用器，并且在一些实施例中使用高数据速率光学RZ到NRZ转换和高数据速率光学NRZ到RZ转换。