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    Tap coupler, optical communication apparatus, and optical branching method
    1.
    发明授权
    Tap coupler, optical communication apparatus, and optical branching method 有权

    公开(公告)号：US12021562B2

    公开(公告)日：2024-06-25

    申请号：US17839549

    申请日：2022-06-14

    申请人： Fujitsu Optical Components Limited

    发明人： Akira Oka

    IPC分类号： H04B10/40 ,  G02B6/28 ,  H04B10/25

    CPC分类号： H04B10/40 ,  G02B6/2852 ,  H04B10/25891

    摘要： A tap coupler includes a mode generation unit, a separation unit, and an output unit. The mode generation unit generates, in accordance with a discontinuous portion disposed on a travelling path of signal light that is propagating, a first mode of the signal light and a second mode that is different from the first mode. The separation unit separates, when the first mode and the second mode are input from the mode generation unit, the first mode and the second mode. The output unit outputs branch light in accordance with a transition of the second mode received from the separation unit.

    PLUGGABLE OPTICAL MODULE, OPTICAL COMMUNICATION SYSTEM AND CONTROL METHOD OF PLUGGABLE OPTICAL MODULE
    2.
    发明公开
    PLUGGABLE OPTICAL MODULE, OPTICAL COMMUNICATION SYSTEM AND CONTROL METHOD OF PLUGGABLE OPTICAL MODULE 审中-公开

    公开(公告)号：US20240168359A1

    公开(公告)日：2024-05-23

    申请号：US18425017

    申请日：2024-01-29

    申请人： NEC Corporation

    发明人： Katsuhiro YUTANI

    IPC分类号： G02F1/225 ,  H04B10/25 ,  H04B10/50 ,  H04B10/516 ,  H04B10/564 ,  H04B10/588

    CPC分类号： G02F1/2252 ,  H04B10/25891 ,  H04B10/50 ,  H04B10/516 ,  H04B10/564 ,  H04B10/588 ,  G02F1/212

    摘要： To autonomously apply a bias voltage to an optical modulator according to phase angle information provided from outside in a pluggable optical module. A pluggable electric connector (11) can communicate a communication data signal and a control signal with an optical communication apparatus (92). An optical signal output unit (13) includes a Mach-Zehnder type optical modulator including a phase modulation area and outputs an optical modulation signal (LS) modulated according to the communication data signal. An optical power control unit (14) can control optical power of the optical modulation signal (LS). A pluggable optical receptor (15) can output the optical modulation signal (LS) to an optical fiber (91). A control unit (12) controls a modulation operation of the optical signal output unit (13) and the bias voltage applied to the phase modulation area. The control unit (12) determines the bias voltage applied to the phase modulation area according to phase angle information of the control signal (CON1). The optical signal output unit (13) applies the bias voltage determined by the control unit (12) to the phase modulation area.

    SINGLE-FIBER BIDIRECTIONAL OPTICAL ASSEMBLY
    3.
    发明公开
    SINGLE-FIBER BIDIRECTIONAL OPTICAL ASSEMBLY 审中-公开

    公开(公告)号：US20240154701A1

    公开(公告)日：2024-05-09

    申请号：US18404381

    申请日：2024-01-04

    申请人： InnoLight Technology (Suzhou) Ltd.

    发明人： YU-ZHOU SUN ,  Hua-zhong LIN

    IPC分类号： H04B10/25 ,  H04J14/02

    CPC分类号： H04B10/25891 ,  H04J14/0221

    摘要： A single-fiber bidirectional optical assembly includes an optical emitter, an optical receiver, a lens assembly, a first filter, a second filter, an optical power attenuator, and an optical fiber interface end. The optical fiber interface end is used for being connected to an optical fiber, a downlink optical signal emitted by the optical emitter is focused by the lens assembly and is then emitted to the optical fiber sequentially through the first filter and the optical fiber interface end and is transmitted by the optical fiber, and an uplink optical signal transmitted by the optical fiber passes through the second filter and is then received by the optical receiver. The optical power attenuator is arranged between the optical emitter and the optical fiber interface end, and the transmittance of the optical power attenuator varies with the wavelength of the optical signal.

    OPTICAL MODULE FOR BI-DIRECTIONAL MONOCHROMATIC TRANSMISSION
    4.
    发明公开
    OPTICAL MODULE FOR BI-DIRECTIONAL MONOCHROMATIC TRANSMISSION 审中-公开

    公开(公告)号：US20240045145A1

    公开(公告)日：2024-02-08

    申请号：US17880972

    申请日：2022-08-04

    申请人： BROWAVE CORPORATION

    发明人： HSIU-WEI SU ,  CHANG-YI PENG

    IPC分类号： G02B6/293 ,  H04B10/25 ,  G02B6/27

    CPC分类号： G02B6/2938 ,  H04B10/25891 ,  G02B6/2746

    摘要： An optical module for bi-directional monochromatic transmission is provided. The optical module includes a substrate, a common terminal, a circulator module, a multiplex-demultiplex (MDM) module, and an input-output terminal. The common terminal is adjacent to the substrate and connected to an optical fiber. The circulator module is on the substrate and in free space optical communication with the common terminal The MDM module is on the substrate and in free space optical communication with the circulator. The input-output terminal is on the substrate and in free space optical communication with the MDM module, the input-output terminal being configured to connect to an emitter and a receiver. The circulator is configured to spatially separate a first directional transmission to the MDM module from a second directional transmission from the MDM module.

    OPTICAL COMMUNICATION LINK WITH REMOTE OPTICALLY PUMPED AMPLIFIER
    6.
    发明公开
    OPTICAL COMMUNICATION LINK WITH REMOTE OPTICALLY PUMPED AMPLIFIER 审中-公开

    公开(公告)号：US20230327765A1

    公开(公告)日：2023-10-12

    申请号：US18132946

    申请日：2023-04-10

    申请人： ADVA Optical Networking SE

    发明人： Rapp Lutz

    IPC分类号： H04B10/25 ,  H04B10/07

    CPC分类号： H04B10/25891 ,  H04B10/07

    摘要： A bidirectional optical communication link, OCL, (1) comprising a first optical transmission link, OTL1, adapted to transmit an optical signal from a near-end location (NEL) via a first optical fiber (2-1) to a remote-end location (REL); and a second optical transmission link, OTL2, adapted to transmit an optical signal from the remote-end location (REL) via a second optical fiber (2-2) to the near-end location(NEL); wherein at least one of the optical transmission links, OTL1, OTL2, comprises a remote optically pumped amplifier, ROPA, (3-1,3-3) having a gain medium which is pumped with pump light received by that gain medium through a third optical fiber (4) from a pump laser source provided at the near-end location (NEL) or provided at the remote-end location (REL) to supply the gain medium of the remote optical pump amplifier, ROPA, (3-1,3-2) with pump power.

    Fiber to the home network incorporating fully connectorized optic fiber tap assembly
    7.
    发明授权
    Fiber to the home network incorporating fully connectorized optic fiber tap assembly 有权

    公开(公告)号：US11770191B2

    公开(公告)日：2023-09-26

    申请号：US17385134

    申请日：2021-07-26

    申请人： Telephone and Data Systems, Inc.

    发明人： John Carl Amundson

    IPC分类号： H04B10/00 ,  H04B10/25 ,  H04B10/27 ,  G02B6/38 ,  H04B10/03 ,  H04J14/00

    CPC分类号： H04B10/25891 ,  G02B6/3825 ,  G02B6/3897 ,  H04B10/03 ,  H04B10/27

    摘要： A fully connectorized optic fiber tap assembly is described that includes a first upstream connector interface configured to receive a downstream connector of a first upstream optic fiber line, and a first downstream connector interface configured to receive an upstream connector of a first downstream optic fiber line. The tap assembly further includes a set of service drop line connector interfaces. Moreover, an optic fiber tap of the assembly is configured to: receive an optical signal from the upstream connector interface, extract a portion of the optical signal, direct the extracted portion of the optical signal to the set of service drop line connector interfaces, and pass a remaining portion of the optical signal to the downstream connector interface. The fully connectorized optic fiber tap assembly is configured to be connected to the first upstream optic fiber line and the first downstream optic fiber line without splicing.

    OPTICAL TRANSMISSION METHOD AND APPARATUS
    10.
    发明公开
    OPTICAL TRANSMISSION METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20240356644A1

    公开(公告)日：2024-10-24

    申请号：US18759251

    申请日：2024-06-28

    申请人： Huawei Technologies Co., Ltd.

    发明人： Kang Xiao ,  Yannian Lou ,  Juan Wei ,  Dongsheng Zheng

    IPC分类号： H04B10/25 ,  H04B10/50

    CPC分类号： H04B10/25891 ,  H04B10/501

    摘要： This application provides an optical transmission method and apparatus, and relates to the communication field. A first optical transmission apparatus includes a first circulator and a first receiving module. The first receiving module is connected to the first circulator. The first circulator is configured to receive a second unmodulated optical signal from a second optical transmission apparatus. The first receiving module is configured to receive a second modulated optical signal from the second optical transmission apparatus, and receive the second unmodulated optical signal from the first circulator. The second modulated optical signal is obtained by modulating a first unmodulated optical signal, the second unmodulated optical signal is used to perform coherence detection on the second modulated optical signal, and the third unmodulated optical signal is an optical signal provided by the first optical transmission apparatus to the second optical transmission apparatus.