OPTICAL COUPLER AND OPTICAL AMPLIFIER
    22.
    发明公开

    公开(公告)号:EP4064468A1

    公开(公告)日:2022-09-28

    申请号:EP20888784.4

    申请日:2020-08-25

    申请人: KDDI Corporation

    摘要: An optical coupler includes first to Nth members, wherein a Kth (K is an integer of 1 to N) member includes a MC optical fiber including first to Pth (P is an integer of N or greater) cores disposed at regular intervals in a circular shape, and a marker disposed at a position closest to the first core, and at least one SC optical fiber, a core of the SC optical fiber of the Kth member is coupled to a coupled core that is other than the first core, cores of the MC optical fiber of an Mth (M is an integer of 1 to N-1) member are connected to cores of the MC optical fiber of an (M+1)th member, a total number of SC optical fibers included in the first to Nth members is P, and each of P cores of the MC optical fibers configured through the connection of the first to Nth members is connected to a core of one of the P SC optical fibers included in the first to Nth members.

    ACTIVE OPTICAL COUPLER
    25.
    发明公开

    公开(公告)号:EP4020030A1

    公开(公告)日:2022-06-29

    申请号:EP21209148.2

    申请日:2021-11-18

    申请人: INTEL Corporation

    IPC分类号: G02B6/26 G02B6/42

    摘要: Embodiments described herein may be related to apparatuses, processes, and techniques related to active optical couplers that provide optical coupling at or proximate to an edge of a silicon photonics package, to allow the package to optically couple with other devices or peripherals. In embodiments, the active optical coupler is optically coupled with a photonics IC (PIC) inside the photonics package, and provides an optical coupling mechanism for optical pathways outside the photonics package. The active optical coupler may include electrical circuitry and may be coupled to the package substrate to provide data related to the operation of the active optical coupler. Other embodiments may be described and/or claimed.

    OPTICAL COMBINER, LASER DEVICE, AND METHOD FOR MANUFACTURING OPTICAL COMBINER

    公开(公告)号:EP4012852A1

    公开(公告)日:2022-06-15

    申请号:EP20852258.1

    申请日:2020-06-22

    申请人: Fujikura Ltd.

    摘要: In an optical combiner, deformation in the cross section of a predetermined first optical fiber is reduced more than in conventional optical combiners. The optical combiner (10) includes: an optical fiber bundle (11) formed by a plurality of first optical fibers (111 to 117); and a second optical fiber (12) having a diameter equal to or larger than the diameter of the optical fiber bundle (11). The plurality of first optical fibers (111 to 117) include a predetermined first optical fiber (117) and the other first optical fibers (111 to 116), the predetermined first optical fiber (117) being composed of one or more materials having higher softening temperatures than one or more materials for the other first optical fibers (111 to 116).

    OPTICAL FIBER FUSE PROTECTION DEVICE, LASER DEVICE, AND METHOD

    公开(公告)号:EP3996219A1

    公开(公告)日:2022-05-11

    申请号:EP20835462.1

    申请日:2020-03-24

    申请人: Fujikura Ltd.

    发明人: TAYA, Hiroyuki

    摘要: For an optical device including an upstream optical fiber and a downstream optical fiber, this invention has an object to reduce, in a case where optical fiber fuse occurs in the downstream optical fiber, the influence of the optical fiber fuse that can be given to the upstream optical fiber. An optical fiber fuse protection device (10) includes an upstream optical fiber (output port OP) disposed on an upstream side, a downstream optical fiber (output delivery fiber ODF) fusion-spliced to the upstream optical fiber (output port OP), and a wall (partition wall Pa) interposed between the upstream optical fiber (output port OP) and the downstream optical fiber (output delivery fiber ODF).