OPTICAL FIBERS AND METHODS ASSOCIATED THEREWITH

    公开(公告)号:EP3528402A1

    公开(公告)日:2019-08-21

    申请号:EP19163241.3

    申请日:2017-04-28

    Applicant: Panduit Corp.

    Abstract: A method of manufacturing a graded-index multimode optical fiber having at least one dopant. The graded-index multimode optical fiber comprising a core, the core having a center, a radius R, and a refractive index profile; and a cladding surrounding the core. The method comprising the steps of: selecting the at least one dopant; introducing the at least one dopant into the core; and controlling the concentration of the at least one dopant during the introduction to produce the refractive index profile, the at least one dopant being selected and the concentration of the at least one dopant being controlled such that the refractive index profile causes the graded-index multimode optical fiber to exacerbate modal chromatic dispersion interaction when coupled with an optical transmitter, the at least one dopant being further selected and the concentration of the at least one dopant being further controlled such that an effective modal bandwidth (EMB) of the graded-index multimode optical fiber is equal to a minimum modal bandwidth requirement specified by a defined standard +/- 10%.

    MULTIMODE OPTICAL FIBER AND METHODS OF DESIGN AND MANUFACTURE THEREOF
    14.
    发明公开
    MULTIMODE OPTICAL FIBER AND METHODS OF DESIGN AND MANUFACTURE THEREOF 审中-公开
    多模光纤及其设计和制造方法

    公开(公告)号:EP3177948A1

    公开(公告)日:2017-06-14

    申请号:EP15753269.8

    申请日:2015-08-07

    Applicant: Panduit Corp.

    Abstract: The present invention relates generally to multimode optical fibers (MMFs) and methods for optimizing said MMFs for transmission for at least two optical wavelengths. In an embodiment, the present invention is a multimode optical fiber optimized for multi-wavelength transmission in communication systems utilizing VCSEL transceivers, where the MMF has a bandwidth designed to maximize and equalize channel reach for multiple wavelengths, and/or where the MMF minimizes for wavelength dependent optical power penalties at one or more wavelengths. The alpha coefficient of the refractive index profile is numerically optimized for all wavelengths based on a transmission model that includes calculation of, inter alia, modal dispersion and chromatic dispersion effects.

    Abstract translation: 本发明一般涉及多模光纤(MMF)和优化所述用于至少两个光波长传输的MMF的方法。 在一个实施例中,本发明是为利用VCSEL收发器的通信系统中的多波长传输而优化的多模光纤,其中MMF具有被设计为最大化多个波长的信道到达的带宽,和/或其中MMF最小化波长相关 在一个或多个波长处的光功率损失。

    OPTICAL FIBERS AND METHODS ASSOCIATED THEREWITH

    公开(公告)号:EP3528403A1

    公开(公告)日:2019-08-21

    申请号:EP19163242.1

    申请日:2017-04-28

    Applicant: Panduit Corp

    Abstract: A method for selecting a test optical fiber for use in testing one or more optical transmitter. The method comprising the steps of: for the test optical fiber determining: a desired effective modal bandwidth (EMB D ); a percentage of allowable variation of the EMB D ( A ); a desired length ( L D ); a percentage of allowable variation of the L D ( B ); a tolerance variable ( X ); and a desired total bandwidth BW, where BW = EMB D L D ; selecting a candidate optical fiber; obtaining an effective modal bandwidth of the candidate optical fiber ( EMB sp ); rejecting the candidate optical fiber when EMB sp ≥ EMB D ( 1 + A + B ) is true or when EMB sp ≤ EMB D ( 1-A-B-X ) is true; cutting the candidate optical fiber to a first length L 1 , where L 1 = L D ( 1 + B ) , when EMB sp ≥ EMB D ( 1 + A + B ) is false and when EMB sp ≤ EMB D ( 1-A-B-X ) is false; measuring an effective modal bandwidth of the candidate optical fiber cut to the first length L 1 ( EMB m1 ) ; accepting the candidate optical fiber cut to the first length L 1 as the test optical fiber when BW 1 − A ≤ EMB m 1 L 1 ≤ BW 1 + A is true; performing additional evaluation steps when BW 1 − A ≤ EMB m 1 L 1 ≤ BW 1 + A is false.

    MULTIMODE OPTICAL FIBERS AND METHODS OF MANUFACTURE THEREOF
    16.
    发明公开
    MULTIMODE OPTICAL FIBERS AND METHODS OF MANUFACTURE THEREOF 审中-公开
    MERTIMODALE GLASFASERN UND VERFAHREN ZUR HERSTELLUNG DAVON

    公开(公告)号:EP2962138A1

    公开(公告)日:2016-01-06

    申请号:EP14710710.6

    申请日:2014-02-26

    Applicant: Panduit Corp.

    Abstract: The present invention generally relates to the field of fiber optics, and more specifically to optical fibers, methods of manufacturing optical fibers, and methods of classifying optical fibers. In an embodiment, the present invention is a multimode optical fiber which comprises a core and clad material system where the refractive indices of the core and cladding are selected to minimize chromatic dispersion in the 850 nm wavelength window and the refractive index profile is optimized for minimum modal-chromatic dispersion in channels utilizing VCSEL transceivers. Multimode optical fibers according to this embodiment may have increased channel bandwidth.

    Abstract translation: 本发明一般涉及光纤领域,更具体地说涉及光纤,制造光纤的方法,以及对光纤进行分类的方法。 在一个实施例中,本发明是一种多模光纤,其包括芯和包层材料系统,其中选择芯和包层的折射率以使850nm波长窗口中的色散最小化,并且折射率分布针对最小值进行优化 使用VCSEL收发器的通道中的模态色散。 根据本实施例的多模光纤可以具有增加的信道带宽。

    METHODS FOR CALCULATING MULTIMODE FIBER SYSTEM BANDWIDTH AND MANUFACTURING IMPROVED MULTIMODE FIBER
    17.
    发明公开
    METHODS FOR CALCULATING MULTIMODE FIBER SYSTEM BANDWIDTH AND MANUFACTURING IMPROVED MULTIMODE FIBER 有权
    方法计算多模光纤系统和制造改进的多模光纤的带宽

    公开(公告)号:EP2470874A1

    公开(公告)日:2012-07-04

    申请号:EP10752479.5

    申请日:2010-08-27

    Applicant: Panduit Corp.

    Inventor: LANE, Brett

    CPC classification number: G01M11/338 G01M11/332 G02B6/4206

    Abstract: An improved algorithm for calculating multimode fiber system bandwidth which addresses both modal dispersion and chromatic dispersion effects is provided. The radial dependence of a laser transmitter emission spectrum is taken into account to assist in designing more effective optical transmission systems.

    Abstract translation: 提供用于计算地址两者的模式色散和色散效应的多模光纤的系统带宽的改进算法。 激光发射器发射光谱的径向关系考虑,以协助设计更有效的光传输系统。

    MULTIMODE OPTICAL FIBER AND METHODS OF MANUFACTURE THEREOF
    20.
    发明公开
    MULTIMODE OPTICAL FIBER AND METHODS OF MANUFACTURE THEREOF 审中-公开
    多模光纤及其制造方法

    公开(公告)号:EP3175269A1

    公开(公告)日:2017-06-07

    申请号:EP15745729.2

    申请日:2015-07-24

    Applicant: Panduit Corp.

    CPC classification number: G02B6/0288 G02B6/02257 G02B6/0281

    Abstract: The present invention generally relates to the field of fiber optics, and more particularly, to apparatuses, systems, and methods directed towards improving effective modal bandwidth within a fiber optic communication environment. In an embodiment, a multimode optical fiber in accordance with the present invention comprises a core and cladding material system where the refractive indices of the core and cladding are selected to modify the shape of the profile dispersion parameter, y, as a function of wavelength in such a way that the alpha parameter (α-parameter), which defines the refractive index profile, produces negative relative group delays over a broad range of wavelengths. The new shape of the profile dispersion parameter departs from traditional fibers where the profile dispersion parameter monotonically decreases around the selected wavelength that maximizes the effective modal bandwidth (EMB).

    Abstract translation: 本发明总体上涉及光纤领域,并且更具体地涉及旨在改善光纤通信环境内的有效模式带宽的设备,系统和方法。 在一个实施例中,根据本发明的多模光纤包括纤芯和包层材料系统,其中选择纤芯和包层的折射率以修改作为波长的函数的轮廓色散参数y的形状 这种方式使得定义折射率分布的α参数(α参数)在宽范围的波长上产生负的相对群延迟。 剖面色散参数的新形状偏离传统光纤,其中剖面色散参数在选定波长附近单调减小,使有效模式带宽(EMB)最大化。

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