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    METHOD AND SYSTEM FOR REMOVING A PILOT TONE FROM AN OPTICAL SIGNAL
    4.
    发明申请
    METHOD AND SYSTEM FOR REMOVING A PILOT TONE FROM AN OPTICAL SIGNAL 有权
    从光信号中移除引导音的方法和系统

    公开(公告)号：US20160211938A1

    公开(公告)日：2016-07-21

    申请号：US14598581

    申请日：2015-01-16

    申请人： Zhiping JIANG ,  Zhuhong ZHANG ,  Xuefeng TANG

    发明人： Zhiping JIANG ,  Zhuhong ZHANG ,  Xuefeng TANG

    IPC分类号： H04J14/02 ,  H04B10/077

    CPC分类号： H04J14/0276 ,  H04B10/077 ,  H04B10/0775 ,  H04B10/2504 ,  H04B10/516 ,  H04B2210/075 ,  H04J14/06

    摘要： The present applies to digital wavelength converters that convert, independently of the format in which optical data may be encoded, an input waveform at a first wavelength to an output waveform at a second wavelength. When operating in an environment where an input waveform has a pilot tone associated thereto, the method and system of the present disclosure allows for the removal of the pilot tone from the input waveform, and also allows for the addition of another pilot to the output waveform.

    摘要翻译： 本发明适用于与光学数据可被编码的格式独立地将第一波长的输入波形转换为第二波长的输出波形的数字波长转换器。 当在输入波形具有与其相关联的导频音的环境中操作时，本公开的方法和系统允许从输入波形中去除导频音，并且还允许将另外的导频添加到输出波形 。

    METHOD AND SYSTEM FOR OPTICAL PERFORMANCE MONITORING
    5.
    发明申请
    METHOD AND SYSTEM FOR OPTICAL PERFORMANCE MONITORING 有权

    公开(公告)号：US20170373751A1

    公开(公告)日：2017-12-28

    申请号：US15189330

    申请日：2016-06-22

    申请人： Zhiping JIANG ,  Jianhong KE

    发明人： Zhiping JIANG ,  Jianhong KE

    IPC分类号： H04B10/079 ,  H04J14/02 ,  H04B10/54

    CPC分类号： H04B10/07955 ,  H04B10/077 ,  H04B10/0775 ,  H04B10/541 ,  H04B2210/075 ,  H04J14/021

    摘要： An aspect of the disclosure provides methods and systems for encoding a data bit stream onto a pilot tone signal. Another aspect of the disclosure provides method and systems for pilot tone detection. In both, a coded pilot tone signal is encoded using a code sequence m1 for each bit value of 1 (b1) and a code sequence m0 for each bit value of 0 (b0) of a data bit stream including pilot tone data bit values of 1 (b1) and bit values of 0 (b0), with each code sequence having multiple coding bits in the duration of each bit. Pilot tone detection can further include decoding each code sequence of the coded pilot tone signal using a plurality of successive overlapping measurement windows. In some embodiments each measurement window is of the same duration, being of the duration of each code sequence, and detecting each code sequence comprises selecting one of the plurality of measurement windows to represent a complete code sequence.

    MONITORING PERFORMANCE OF OPTICAL NETWORK EQUIPMENT USING PILOT TONES
    6.
    发明申请
    MONITORING PERFORMANCE OF OPTICAL NETWORK EQUIPMENT USING PILOT TONES 审中-公开

    公开(公告)号：US20190123819A1

    公开(公告)日：2019-04-25

    申请号：US15790268

    申请日：2017-10-23

    申请人： Zhiping JIANG

    发明人： Zhiping JIANG

    IPC分类号： H04B10/079 ,  H04B10/50 ,  H04B10/69

    CPC分类号： H04B10/0795 ,  H04B10/0773 ,  H04B10/0775 ,  H04B10/50 ,  H04B10/691 ,  H04B2210/075 ,  H04J14/02

    摘要： The present disclosure relates to a method, an apparatus and a system for monitoring performance of optical network equipment. The method comprises receiving an optical channel signal comprising a first pilot tone in a first spectral sub-band of the optical channel signal and a second pilot tone in a second spectral sub-band of the optical channel signal, the first and the second spectral sub-bands being on opposite sides of a reference frequency of the optical channel signal. The performance of the optical network equipment is monitored based on a power mismatch between the first and second pilot tones of the received optical channel signal. An apparatus and a system for monitoring performance of the optical network equipment are also described.

    SYSTEMS AND METHODS FOR FAST WAVELENGTH SELECTION IN AN OPTICAL NETWORK
    8.
    发明申请
    SYSTEMS AND METHODS FOR FAST WAVELENGTH SELECTION IN AN OPTICAL NETWORK 有权

    公开(公告)号：US20220132227A1

    公开(公告)日：2022-04-28

    申请号：US17079323

    申请日：2020-10-23

    申请人： Zhiping JIANG

    发明人： Zhiping JIANG

    IPC分类号： H04Q11/00 ,  H01S5/50

    摘要： Systems and methods are described in an optical network. A system includes a first wavelength selector system having a first input port and a first output port, the first input port configured to receive a first set of multi-wavelength signals and the first output port configured to output a second set of multi-wavelength signals, the second set of multi-wavelength signals being a subset of the first set of multi-wavelength signals; a second wavelength selector system having a second input port and a second output port, the second input port configured to receive the second set of multi-wavelength signals and the second output port configured to output a final optical signal from the second set of multi-wavelength signals; and a controller coupled to the first wavelength selector system and the second wavelength selector system.

    METHOD AND APPARATUS FOR DETECTING AN OBJECT USING OPTICAL PULSES WITH NON-UNIFORM POWER
    9.
    发明申请
    METHOD AND APPARATUS FOR DETECTING AN OBJECT USING OPTICAL PULSES WITH NON-UNIFORM POWER 有权

    公开(公告)号：US20210373136A1

    公开(公告)日：2021-12-02

    申请号：US16889582

    申请日：2020-06-01

    申请人： Zhiping JIANG ,  Ali Ahmed Ali MASSOUD

    发明人： Zhiping JIANG ,  Ali Ahmed Ali MASSOUD

    IPC分类号： G01S7/4865 ,  G01S17/894 ,  G01S7/481 ,  G01S17/10

    摘要： There is provided a method and apparatus for detecting an object, especially an object remotely placed in a field of view (FOV) using optical pulses with non-uniform pulse power, without exceeding the Accessible Emitted Limit (AEL) A plurality of optical pulses including two or more levels of pulse power may be emitted to detect an object in the FOV. Information related to the object may be generated from the returning optical pulses. The optical pulses with non-uniform pulse power may result in increased probability of detection associated with the pulses returning from the remotely located object, and therefore the density of point clouds associated with the remotely located object may be increased.

    DYNAMIC MONITORING AND CALIBRATION OF NODES IN AN OPTICAL NETWORKING DEVICE
    10.
    发明申请
    DYNAMIC MONITORING AND CALIBRATION OF NODES IN AN OPTICAL NETWORKING DEVICE 审中-公开

    公开(公告)号：US20190238224A1

    公开(公告)日：2019-08-01

    申请号：US15883540

    申请日：2018-01-30

    申请人： Mohammad Mehdi MANSOURI RAD ,  Hamid MEHRVAR ,  Zhiping JIANG ,  Eric BERNIER

    发明人： Mohammad Mehdi MANSOURI RAD ,  Hamid MEHRVAR ,  Zhiping JIANG ,  Eric BERNIER

    IPC分类号： H04B10/079 ,  H04J14/02 ,  H04B10/071 ,  H04B10/80 ,  H04B10/299

    摘要： A monitoring and calibration apparatus for an optical networking device such as ROADM is provided. Reflectors are integrated into the device, for example at the ends of optical interconnect cables. The reflectors reflect light in specific monitoring wavelengths and pass other wavelengths such as those used for communication. A light source emits monitoring light which is reflected by the reflector and measured by a detector to measure the integrity of optical paths. The optical paths can include optical cables and cable connectors. Path integrity between different modules of the device can therefore be monitored. Multiple reflectors, reflecting light in different wavelengths, can be placed in series along the same optical path and used to monitor multiple segments of the path. A wavelength selective switch (WSS) of the device can be used to route monitoring light to different optical paths. The WSS also operates to route communication signals in the device.