Mode division multiplexing systems and methods using a rectangular-core optical fiber

    公开(公告)号:US10454607B2

    公开(公告)日:2019-10-22

    申请号:US15880674

    申请日:2018-01-26

    Abstract: A mode division multiplexing system that includes a transmitter system, a receiver system and an optical link that optically connects the transmitter and receiver systems. The optical link includes a rectangular-core optical fiber having a rectangular core with a short dimension and a long dimension. The rectangular-core optical fiber supports only a single mode in the short dimension and multiple modes in the long dimension. A method of transmitting optical signals includes converting single mode optical signals to respective multimode optical signals each having a select spatial mode as defined by the rectangular-core optical fiber. The multimode optical signals are multiplexed and transmitted from the transmitter system to the receiver system over the rectangular-core optical fiber where the multimode optical signals are demultiplexed and converted back to single mode optical signals, which are then detected by respective receivers. A rectangular-core optical fiber is also disclosed.

    Anti-resonant hollow core optical fiber and methods of making

    公开(公告)号:US12298554B2

    公开(公告)日:2025-05-13

    申请号:US17875807

    申请日:2022-07-28

    Abstract: An anti-resonant hollow core optical fiber preform that includes an outer cladding, a plurality of structural tubes, and a central support tube. The outer cladding has a length, a central longitudinal axis, and a hollow interior. The plurality of structural tubes are disposed within the hollow interior of the outer cladding, the plurality of structural tubes each having a length that extends the length of the outer cladding. And the central support tube is disposed within the hollow interior of the outer cladding such that the plurality of structural tubes are disposed radially outward of the central support tube, the central support tube having a length that extends along the central longitudinal axis of the outer cladding. Furthermore, the length of the central support tube is less than the length of the outer cladding.

    Multicore optical fiber with a randomized core structure

    公开(公告)号:US10094974B2

    公开(公告)日:2018-10-09

    申请号:US15337376

    申请日:2016-10-28

    Abstract: Multicore optical fibers are disclosed that have randomly arranged cores within a cladding matrix. In some cases, the cores are defined by air lines formed in a glass matrix. The cores can have an edge-to-edge spacing designed so that the multicore optical fiber operates in either a weak-coupling regime or a strong-coupling regime. Imaging systems and optical fiber communication systems that utilize the multicore fibers disclosed here are also presented.

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