Index matched grating inscription
    3.
    发明授权
    Index matched grating inscription 有权
    索引匹配光栅铭文

    公开(公告)号:US09568670B2

    公开(公告)日:2017-02-14

    申请号:US14185443

    申请日:2014-02-20

    申请人: OFS Fitel, LLC

    IPC分类号: G02B6/02

    摘要: The disclosed embodiments provide systems and methods for mitigating lensing and scattering as an optical fiber is being inscribed with a grating. The disclosed systems and methods mitigate the lensing phenomenon by surrounding an optical fiber with an index-matching material that is held in a vessel with an integrated interferometer (e.g., phase mask, etc.). The index-matching material has a refractive index that is sufficient to reduce intensity variations of the actinic radiation within the optical fiber. Some embodiments of the system include different vessels for holding the index-matching material, with the vessel having an interferometer integrated into the vessel. These vessels permit the optical fiber to be surrounded by the index-matching material while the gratings are written to the optical fiber.

    摘要翻译: 所公开的实施例提供了当光纤正刻有光栅时减轻透镜和散射的系统和方法。 所公开的系统和方法通过用保持在具有集成干涉仪(例如相位掩模等)的容器中的折射率匹配材料围绕光纤来减轻透镜现象。 折射率匹配材料具有足以减少光纤内的光化辐射的强度变化的折射率。 系统的一些实施例包括用于保持折射率匹配材料的不同容器,容器具有集成到容器中的干涉仪。 这些容器允许光纤被折射率匹配材料包围,同时光栅被写入到光纤中。

    RIDGE WAVEGUIDE SERIAL INTERFEROMETERS
    5.
    发明申请
    RIDGE WAVEGUIDE SERIAL INTERFEROMETERS 有权
    RIDGE波形串行干扰仪

    公开(公告)号:US20120134623A1

    公开(公告)日:2012-05-31

    申请号:US13257198

    申请日:2010-03-10

    IPC分类号: G02B6/26

    摘要: In a ridge waveguide serial interferometer mode conversion is induced by a first mode conversion section, a phase difference between modes is introduced by propagation over a length of waveguide and optical interference is produced following further mode conversion induced in a second mode conversion section. The first mode conversion section has a first radius of curvature, which is equal to a second radius of curvature of the second mode conversion section. The ridge waveguide interferometer advantageously provides an equal phase dependency as a function of temperature.

    摘要翻译: 在由第一模式转换部分引起的脊波导串行干涉仪模式转换中,通过在一定长度的波导上的传播引入模式之间的相位差,并且在第二模式转换部分中引起的另外的模式转换之后产生光学干涉。 第一模式转换部分具有第一曲率半径,其等于第二模式转换部分的第二曲率半径。 脊波导干涉仪有利地提供作为温度的函数的相等相位依赖性。

    MICROHOLE-STRUCTURED LONG PERIOD FIBER GRATING
    7.
    发明申请
    MICROHOLE-STRUCTURED LONG PERIOD FIBER GRATING 有权
    MICROHOLE-STRUCTURED长期光纤光栅

    公开(公告)号:US20110135245A1

    公开(公告)日:2011-06-09

    申请号:US12633782

    申请日:2009-12-08

    IPC分类号: G02B6/02 G01K11/32 G02B1/12

    摘要: An optical fiber with long period fiber gratings includes an optical fiber axis, a core region extending along the fiber axis, the core region having a core refractive index, a cladding region surrounding the core region, the cladding having a cladding refractive index, and a plurality of microholes perpendicular to the fiber axis with a portion of the core region removed, the plurality of microholes are spaced apart by a grating period.

    摘要翻译: 具有长周期光纤光栅的光纤包括光纤轴,沿着光纤轴延伸的芯区域,具有芯折射率的芯区域,围绕芯区域的包层区域,包层具有包层折射率,以及 多个微孔与纤维轴垂直,芯区的一部分被去除,多个微孔间隔光栅周期。

    Optical waveguide device and optical communication module
    9.
    发明授权
    Optical waveguide device and optical communication module 有权
    光波导器件和光通信模块

    公开(公告)号:US07792401B2

    公开(公告)日:2010-09-07

    申请号:US12410743

    申请日:2009-03-25

    IPC分类号: G02B6/26 G02B6/34 G02B6/42

    摘要: An optical waveguide device and an optical communication module are provided. In the optical waveguide device which includes a core and a cladding layer formed around the core and has one end formed to be inclined so as to refract input and output signals, the core includes therein a diffraction portion for diffracting an optical signal incident through the cladding layer to propagate straight through the core. Thus, it is possible to prevent deterioration of an optical signal coupling ratio in implementing a technique of transmitting optical signals in opposite directions.

    摘要翻译: 提供光波导器件和光通信模块。 在包括芯和围绕芯部形成的包覆层的光波导器件中,其一端形成为倾斜以折射输入和输出信号,其中包括衍射部分,用于衍射通过包层入射的光信号 层直接传播通过核心。 因此,在实现相反方向上发送光信号的技术中,可以防止光信号耦合比的恶化。

    Optical fiber mode couplers
    10.
    发明申请
    Optical fiber mode couplers 有权
    光纤模式耦合器

    公开(公告)号:US20100129029A1

    公开(公告)日:2010-05-27

    申请号:US12313580

    申请日:2008-11-21

    申请人: Paul S. Westbrook

    发明人: Paul S. Westbrook

    IPC分类号: G02B6/26

    摘要: Described are optical devices and related methods wherein a multiple mode input in a Higher Order Mode (an HOM) optical fiber is converted by a complex mode transformer to produce a fundamental mode output in an optical medium with an E-field that is substantially different than that exiting the HOM optical fiber. The medium is preferably a Large Mode Area (LMA) optical fiber, or free space. The mode transformer may be a series of refractive index perturbations created either by photo-induced gratings or by gratings formed by physical deformations of the optical fiber.

    摘要翻译: 描述的是光学器件和相关方法,其中高阶模式(HOM)光纤中的多模式输入由复模变换器转换,以在光学介质中产生基本模式输出,其中E场大体上不同于 退出HOM光纤。 该介质优选地是大模式区域(LMA)光纤或自由空间。 模式变压器可以是通过光诱导光栅或由光纤的物理变形形成的光栅产生的一系列折射率扰动。