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公开(公告)号：EP3389199A1
公开(公告)日：2018-10-17
申请号：EP15911856.1
申请日：2015-12-30
发明人： LI, Shu , WANG, Zelin , LI, Yuanmou
CPC分类号： G02B6/4246 , G02B6/42 , G02B6/4215 , G02B6/4257 , G02B6/4263 , G02B6/4277 , H04B10/40 , H04B10/43 , H04J14/02
摘要： Embodiments of the present invention provide a bidirectional optical sub assembly, to eliminate optical and electrical crosstalk between a receiver and a transmitter in the bidirectional optical sub assembly. The bidirectional optical sub assembly includes: a base, made of a conducting material and including a first part and a second part; a wavelength division multiplexing part, configured to: reflect an optical signal of a first wavelength, or transmit an optical signal of a second wavelength, where the first wavelength is different from the second wavelength; an input port, configured to transmit a first electrical signal to a transmitter; the transmitter, configured to: convert the first electrical signal into a first optical signal, and transmit the first optical signal to the wavelength division multiplexing part, where the wavelength division multiplexing part is configured to reflect the first optical signal, and the wavelength division multiplexing part is further configured to transmit a second optical signal to a receiver; the receiver, configured to: convert the second optical signal into a second electrical signal, and output the second electrical signal by using an output port; and an isolation part, configured to electromagnetically isolate the receiver from the transmitter.
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2.发明公开
公开(公告)号：EP4242711A2
公开(公告)日：2023-09-13
申请号：EP23168828.4
申请日：2018-12-27
发明人： LI, Shu , CAO, Rixiang , WANG, Zelin , YANG, Sulin
IPC分类号： G02B6/293
摘要： Embodiments of this application provide a receiver optical sub-assembly, a combo bi-directional optical sub-assembly, a combo optical module, an optical line terminal, and a passive optical network system, and relate to the field of optical communications technologies. The receiver optical sub-assembly includes a first transistor-outline can, where a light incident hole is disposed on the first transistor-outline can, and a first demultiplexer, a first optical receiver, a second optical receiver, and an optical lens combination are packaged in the first transistor-outline can. Light enters the first demultiplexer through the light incident hole, and the first demultiplexer is configured to transmit an optical signal of a first wavelength and reflect an optical signal of a second wavelength. The first optical receiver is disposed on a transmission optical path of the first demultiplexer, and the first optical receiver is configured to receive the optical signal of the first wavelength. The optical lens combination is disposed on a reflection optical path of the first demultiplexer, and the optical lens combination is configured to guide, to the second optical receiver, the optical signal of the second wavelength that is reflected by the first demultiplexer. The second optical receiver is configured to receive the optical signal of the second wavelength.
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3.发明公开
公开(公告)号：EP3975451A1
公开(公告)日：2022-03-30
申请号：EP20827800.2
申请日：2020-06-19
发明人： CAO, Rixiang , XIONG, Yu , WANG, Zelin , YU, Zhe
摘要： This application provides a receiver optical sub-assembly, a bi-directional optical sub-assembly, and an optical network device to improve anti-electromagnetic crosstalk performance of the receiver optical sub-assembly. The receiver optical sub-assembly includes: a photodiode, a trans-impedance amplifier, and a first filter component. The photodiode is configured to convert an optical signal into an electrical signal, a positive electrode of the photodiode is connected to an input terminal of the trans-impedance amplifier, and a negative electrode of the photodiode is configured to connect to a power supply. The trans-impedance amplifier is configured to amplify the electrical signal output by the photodiode, a power terminal of the trans-impedance amplifier is configured to connect to a power supply, and a first ground terminal of the trans-impedance amplifier is configured to connect to an external ground. A first terminal of the first filter component is connected to a second ground terminal of the trans-impedance amplifier, and a second terminal of the first filter component is configured to connect to the external ground.
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4.发明公开
公开(公告)号：EP4242711A3
公开(公告)日：2023-11-15
申请号：EP23168828.4
申请日：2018-12-27
发明人： LI, Shu , CAO, Rixiang , WANG, Zelin , YANG, Sulin
摘要： Embodiments of this application provide a receiver optical sub-assembly, a combo bi-directional optical sub-assembly, a combo optical module, an optical line terminal, and a passive optical network system, and relate to the field of optical communications technologies. The receiver optical sub-assembly includes a first transistor-outline can, where a light incident hole is disposed on the first transistor-outline can, and a first demultiplexer, a first optical receiver, a second optical receiver, and an optical lens combination are packaged in the first transistor-outline can. Light enters the first demultiplexer through the light incident hole, and the first demultiplexer is configured to transmit an optical signal of a first wavelength and reflect an optical signal of a second wavelength. The first optical receiver is disposed on a transmission optical path of the first demultiplexer, and the first optical receiver is configured to receive the optical signal of the first wavelength. The optical lens combination is disposed on a reflection optical path of the first demultiplexer, and the optical lens combination is configured to guide, to the second optical receiver, the optical signal of the second wavelength that is reflected by the first demultiplexer. The second optical receiver is configured to receive the optical signal of the second wavelength.
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公开(公告)号：EP4099629A1
公开(公告)日：2022-12-07
申请号：EP20929598.9
申请日：2020-11-30
发明人： LI, Jinbo , WANG, Zelin , ZENG, Xiaofei
摘要： Embodiments of this application disclose an optical network unit and a PoE power supply system, to remotely supply power to a PoE terminal device. The optical network unit in embodiments of this application includes a conductive connection terminal, a switch module, a network transformer, a first voltage conversion module, and a network interface connector. The conductive connection terminal is configured to be connected to a power over Ethernet PoE power supply device, and the conductive connection terminal is connected to the network transformer. The network transformer is connected to the network interface connector, and the network interface connector is configured to be connected to a PoE terminal device. The conductive connection terminal is further connected to the first voltage conversion module by using the switch module. Before a handshake between the PoE power supply device and the PoE terminal device is completed, the switch module is in an open state. After the handshake between the PoE power supply device and the PoE terminal device is completed, the switch module is in a closed state, to supply power to the PoE terminal device and to supply power to the optical network unit.
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