Suppresson of Undesirable Signal Propagation Mode(S) Downstream of Mode Converter
    93.
    发明申请
    Suppresson of Undesirable Signal Propagation Mode(S) Downstream of Mode Converter 失效
    抑制模式转换器下游不良信号传播模式(S)

    公开(公告)号:US20090041410A1

    公开(公告)日:2009-02-12

    申请号:US10566376

    申请日:2004-09-29

    IPC分类号: G02B6/26

    CPC分类号: G02B6/02095 G02B6/14

    摘要: An optical device (D) is dedicated to the transformation of the propagation mode of optical signals. This device comprises at least a first mode converter (3) that is supplied with signals that are propagated in a first guided mode and that delivers the signals in a multimode fibre (4) partly in the first guided mode and partly in a second guided more of a higher order that the first. The multimode fibre (4) comprises at least first passive filtering means (R) which have the task of converting the first guided mode into at least one dissipative cladding mode in order to prevent or limit the propagation of the signals in this first guided mode while at the same time authorising the propagation of the signals having the second guided mode in the multimode fibre (4).

    摘要翻译: 光学装置(D)专用于光信号的传播模式的变换。 该装置至少包括第一模式转换器(3),该第一模式转换器(3)被提供有以第一引导模式传播的信号,并且以多模光纤(4)部分地以第一引导模式传送信号,并部分地以第二导向 一个较高的阶数是第一个。 多模光纤(4)至少包括第一无源滤波装置(R),其具有将第一导模转换成至少一个耗散包层模式的任务,以便防止或限制在该第一导向模式中的信号的传播,同时 同时授权在多模光纤(4)中传播具有第二引导模式的信号。

    MULTIMODE LONG PERIOD FIBER BRAGG GRATING MACHINED BY ULTRAFAST DIRECT WRITING
    94.
    发明申请
    MULTIMODE LONG PERIOD FIBER BRAGG GRATING MACHINED BY ULTRAFAST DIRECT WRITING 审中-公开
    超声波直接写入多功能长周期光纤布拉格

    公开(公告)号:US20080193085A1

    公开(公告)日:2008-08-14

    申请号:US12104082

    申请日:2008-04-16

    IPC分类号: G02B6/26

    摘要: An optical fiber with an integral photonic crystal structure. The optical fiber core is formed of a non-photosensitive material having an initial index of refraction. The optical fiber core includes a substantially cylindrical surface, a longitudinal core axis, a core radius, and a number of index-altered portions having an altered index of refraction different from the initial cladding index of refraction. The index-altered portions are arranged within the non-photosensitive material of the optical fiber core to form a photonic crystal structure. The photonic crystal structure may be a one dimensional, a two dimensional, or a three dimensional photonic crystal structure.

    摘要翻译: 具有整体光子晶体结构的光纤。 光纤芯由具有初始折射率的非感光材料形成。 光纤芯包括基本上圆柱形的表面,纵向芯轴,芯半径以及具有与初始包层折射率不同的改变的折射率的多个折射率改变部分。 折射率改变部分布置在光纤芯的非感光材料内,以形成光子晶体结构。 光子晶体结构可以是一维,二维或三维光子晶体结构。

    Optical fiber for long period grating, long period grating component and manufacturing method of the same
    95.
    发明授权
    Optical fiber for long period grating, long period grating component and manufacturing method of the same 失效
    光纤长周期光栅,长周期光栅元件及其制造方法相同

    公开(公告)号:US07362939B2

    公开(公告)日:2008-04-22

    申请号:US11349871

    申请日:2006-02-08

    IPC分类号: G02B6/02 G02B6/036 G02B6/34

    摘要: This invention relates to an optical fiber for long period grating (LPG), LPG components, and manufacturing method of LPG used as a mode coupler, an optical filter, etc. The optical fiber for LPG comprises a core layer, a first cladding layer that surrounds said core layer and transmits the cladding modes, and a second cladding layer that surrounds said first cladding layer and confines the optical signal of the cladding mode within said first cladding layer. The LPG component comprises an optical fiber for LPG, a coating reinforcement to cover and reinforce said optical fiber for LPG. The manufacturing method of LPG comprises a step of preparation of an optical fiber, a step of constructing the LPG on a predetermined region in said core of said optical fiber by irradiating laser light on said region over a predetermined period corresponding to the LPG, on the predetermined part of said optical fiber, and a step which covers and reinforces said grating region.

    摘要翻译: 本发明涉及一种用于长周期光栅(LPG)的光纤,LPG部件以及用作模式耦合器的LPG的制造方法,滤光器等。用于LPG的光纤包括芯层,第一包层 围绕所述芯层并透射包层模;以及第二覆层,其围绕所述第一包层,并将所述包层模式的光信号限制在所述第一包层内。 LPG组件包括用于LPG的光纤,用于覆盖和加强用于LPG的所述光纤的涂层加强件。 LPG的制造方法包括制造光纤的步骤,在所述光纤的所述芯部的规定区域上,在与所述LPG对应的规定时间内在所述区域上照射激光,在所述光纤的所述芯部的规定区域上, 所述光纤的预定部分,以及覆盖并加强所述光栅区域的步骤。

    Wavelength selective device
    96.
    发明授权
    Wavelength selective device 失效
    波长选择器件

    公开(公告)号:US07295732B2

    公开(公告)日:2007-11-13

    申请号:US10581252

    申请日:2004-11-30

    IPC分类号: G02B6/26

    摘要: The present invention relates to a device, method, array and use of the device for optical coupling. The device comprises first and second optical waveguides (13, 23) extending longitudinally with cores (14, 24) adapted to guide optical radiation (15), first resonator means, laterally surrounding the first waveguide, comprising first and second resonator members (18, 19), and second resonator means, laterally surrounding the second waveguide, comprising third and fourth resonator members (28, 29). The invention is characterized in that first and second deflector means (16, 26) are adapted to couple radiation propagating in the respectiv first and second waveguides with common radiation modes (30), which modes are defined by adjustable geometrical and material properties of the device, so as to obtain wavelength selective coupling of radiation guided by the first and second waveguides, provided the resonator means are tuned to the same resonance wavelength.

    摘要翻译: 本发明涉及用于光耦合的装置的装置,方法,阵列和用途。 该装置包括纵向延伸的第一和第二光波导(13,23),其具有适于引导光辐射(15)的芯(14,24),第一谐振器装置横向围绕第一波导,包括第一和第二谐振器构件 并且横向包围第二波导的第二谐振器装置包括第三和第四谐振器构件(28,29)。 本发明的特征在于,第一和第二偏转器装置(16,26)适于将相对于第一和第二波导传播的辐射与公共辐射模式(30)耦合,这些模式由装置的可调几何和材料特性限定 ,以便获得由第一和第二波导引导的辐射的波长选择性耦合,只要谐振器装置被调谐到相同的共振波长。

    Optical fibers and optical fiber devices with total dispersion greater than material dispersion
    97.
    发明申请
    Optical fibers and optical fiber devices with total dispersion greater than material dispersion 审中-公开
    总体色散大于材料色散的光纤和光纤设备

    公开(公告)号:US20070206910A1

    公开(公告)日:2007-09-06

    申请号:US11367495

    申请日:2006-03-04

    IPC分类号: G02B6/02

    摘要: Disclosed are optical fiber devices incorporating optical fibers with total dispersion greater than material dispersion, and with preferred dispersion values less than +50 ps/nm-km. The desired dispersion values are obtained when light resides substantially in a single higher order mode (HOM) of the fiber, typically the LP02 mode. The optical fibers also preferably have substantial separation between the effective indices of the HOM and any other mode.

    摘要翻译: 公开了包含具有大于材料色散的总色散并且具有小于+ 50ps / nm-km的优选色散值的光纤的光纤装置。 当光基本上位于光纤的单个较高阶模式(HOM)时,通常是LP O 2 O 2模式,获得期望的色散值。 光纤还优选地在HOM的有效索引和任何其它模式之间具有相当大的间隔。

    Wavelength selective device
    98.
    发明申请
    Wavelength selective device 失效
    波长选择器件

    公开(公告)号:US20070104421A1

    公开(公告)日:2007-05-10

    申请号:US10581252

    申请日:2004-11-30

    IPC分类号: G02B6/28 G02B6/34

    摘要: The present invention relates to a device, method, array and use of the device for optical coupling. The device comprises first and second optical waveguides (13, 23) extending longitudinally with cores (14, 24) adapted to guide optical radiation (15), first resonator means, laterally surrounding the first waveguide, comprising first and second resonator members (18, 19), and second resonator means, laterally surrounding the second waveguide, comprising third and fourth resonator members (28, 29). The invention is characterised in that first and second deflector means (16, 26) are adapted to couple radiation propagating in the respective first and second waveguides with common radiation modes (30), which modes are defined by adjustable geometrical and material properties of the device, so as to obtain wavelength selective coupling of radiation guided by the first and second waveguides, provided the resonator means are tuned to the same resonance wavelength.

    摘要翻译: 本发明涉及用于光耦合的装置的装置,方法,阵列和用途。 该装置包括纵向延伸的第一和第二光波导(13,23),其具有适于引导光辐射(15)的芯(14,24),第一谐振器装置横向围绕第一波导,包括第一和第二谐振器构件 并且横向包围第二波导的第二谐振器装置包括第三和第四谐振器构件(28,29)。 本发明的特征在于,第一和第二偏转器装置(16,26)适于将在相应的第一和第二波导中传播的辐射与公共辐射模式(30)耦合,这些模式由装置的可调几何和材料特性限定 ,以便获得由第一和第二波导引导的辐射的波长选择性耦合,只要谐振器装置被调谐到相同的共振波长。

    Devices, systems, and methods for sensing moisture
    100.
    发明授权
    Devices, systems, and methods for sensing moisture 失效
    用于感测水分的设备,系统和方法

    公开(公告)号:US06965708B2

    公开(公告)日:2005-11-15

    申请号:US10264507

    申请日:2002-10-04

    摘要: Various exemplary embodiments, devices, systems, and methods for sensing moisture are disclosed, including at least one moisture sensor that comprises an optical fiber, a long period grating formed in at least a portion of the optical fiber, and a layer of PEI bonded to the long period grating. One exemplary embodiment comprises a system for measuring humidity, the system comprising an optical fiber moisture sensor having a mono-layer of PEI covalently-bonded to an outer surface of said optical fiber, a processor coupled to said optical fiber moisture sensor, and a moisture indicator coupled to said processor.

    摘要翻译: 公开了用于感测水分的各种示例性实施例,装置,系统和方法,包括至少一个湿度传感器,其包括光纤,形成在光纤的至少一部分中的长周期光栅,以及结合到 长周期光栅。 一个示例性实施例包括用于测量湿度的系统,该系统包括光纤水分传感器,该光纤水分传感器具有共价键合到所述光纤的外表面上的PEI单层,耦合到所述光纤水分传感器的处理器和湿气 指示器耦合到所述处理器。