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公开(公告)号：US20090041405A1
公开(公告)日：2009-02-12
申请号：US12222392
申请日：2008-08-08
Applicant: Xiaoli Dai , Stephen J. Mihailov , Robert B. Walker , Chantal Blanchetiere , Claire Callender , Huimin Ding , Ping Lu , Dan Grobnic , Christopher W. Smelser , Gino Cuglietta
Inventor： Xiaoli Dai , Stephen J. Mihailov , Robert B. Walker , Chantal Blanchetiere , Claire Callender , Huimin Ding , Ping Lu , Dan Grobnic , Christopher W. Smelser , Gino Cuglietta
IPC: G02B6/00
CPC classification number: G01N21/4133 , G01N2021/458 , G02B2006/12107
Abstract: An optical sensor for sensing information relating to an analyte liquid or gas, has a a planar substrate having a refractive index nc. The planar substrate supports a ridge waveguide having an unclad top portion having a refractive index nr. The substrate serves as cladding layer for the ridge waveguide at a location where the ridge waveguide contacts the substrate. A Bragg grating inscribed in the ridge waveguide has two modes for providing information relating to both temperature and refractive index of the surrounding analyte liquid or gas. A cladding mode has a different response to the analyte when compared to a Bragg resonance response. Both modes have a same reaction to temperature, wherein said Bragg grating is formed within the unclad region of ridge waveguide, wherein nc
Abstract translation: 用于感测与分析物液体或气体有关的信息的光学传感器具有折射率nc的平面基板。 平面基板支撑具有折射率nr的未包层顶部的脊波导。 衬底用作脊波导在脊波导接触衬底的位置处的包覆层。 刻在脊形波导中的布拉格光栅具有两种模式，用于提供与周围分析物液体或气体的温度和折射率有关的信息。 当与布拉格共振响应相比时，包层模式对分析物具有不同的响应。 两种模式对温度具有相同的反应，其中所述布拉格光栅形成在脊波导的未包围区域内，其中nc
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公开(公告)号：US07245795B2
公开(公告)日：2007-07-17
申请号：US11272871
申请日：2005-11-15
Applicant: Robert Walker , Stephen J. Mihailov , Ping Lu , Dan Grobnic , Xiaoli Dai , Huimin Ding , George Henderson , Christopher Smelser
Inventor： Robert Walker , Stephen J. Mihailov , Ping Lu , Dan Grobnic , Xiaoli Dai , Huimin Ding , George Henderson , Christopher Smelser
IPC: G02B6/12
CPC classification number: G01J1/04 , G01J1/0204 , G01J1/0407 , G01J1/0477 , G01J1/4228 , G01J9/00 , G02B6/02085 , G02B6/29323 , G02B6/29385 , G02B6/4215
Abstract: The invention relates to an optical waveguide device for monitoring a characteristics of light, e.g. a wavelength. The device incorporates a waveguide, such as an optical fiber, with an embedded tilted Bragg grating operating in a regime of wavelength detuning. The grating is designed to disperse light azimuthally in two or more different directions about the fiber axis, said directions changing with wavelength. A photodetector array is provided for detecting the azimuthal distribution of light. A processor coupled to the photodetector array determines wavelength information from the detected azimuthal distribution of the out-coupled light.
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公开(公告)号：US20060029322A1
公开(公告)日：2006-02-09
申请号：US11243193
申请日：2005-10-05
Applicant: Stephen Mihailov , Dan Grobnic , Christopher Smelser , Robert Walker , Ping Lu , Huimin Ding , George Henderson , Xiaoli Dai
Inventor： Stephen Mihailov , Dan Grobnic , Christopher Smelser , Robert Walker , Ping Lu , Huimin Ding , George Henderson , Xiaoli Dai
IPC: G02B6/00
CPC classification number: G02B6/02138 , G02B6/021 , G02B6/02147
Abstract: A retro-reflective sensor for sensing mechanical, chemical or temperature related information, is disclosed. The sensor is formed of an optical waveguide suitable for use in-situ in a high temperature environment having a Bragg grating written into a core region thereof with short-pulsed electromagnetic radiation, said optical waveguide having a glass transition temperature substantially higher than that of silica. Preferably the sensor is written into a length of sapphire fiber or within a zirconium waveguide. Preferably the pulse duration of the short pulsed electromagnetic radiation is less than 500 picoseconds.
Abstract translation: 公开了一种用于感测机械，化学或温度相关信息的回射传感器。 传感器由适合在高温环境中原位使用的光波导形成，其中布拉格光栅用短脉冲电磁辐射写入其核心区域，所述光波导的玻璃化转变温度明显高于二氧化硅 。 优选地，传感器被写入蓝宝石光纤的长度或在锆波导内。 优选地，短脉冲电磁辐射的脉冲持续时间小于500皮秒。
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4.发明申请METHOD AND APPARATUS FOR RECOATING AN OPTICAL FIBER HAVING A NON-UNIFORM DIAMETER 审中-公开用于回收具有非均匀直径的光纤的方法和装置公开(公告)号：US20130136857A1
公开(公告)日：2013-05-30
申请号：US13419717
申请日：2012-03-14
Applicant: Chantal Blanchetiere , Sarkis Jacob , Xiaoli Dai , Huimin Ding
Inventor： Chantal Blanchetiere , Sarkis Jacob , Xiaoli Dai , Huimin Ding
Abstract: An optical fiber recoating apparatus employs a variable size applicator for depositing a coating material in liquid form onto a portion of varying diameter optical fiber. The coating material is applied to the variable size applicator which is in continuous contact about the circumference of the optical fiber. At a constant speed the variable size applicator moves along the length of the optical fiber while simultaneously changing size to conform to the varying diameter of the optical fiber for applying a uniform coating thereto.
Abstract translation: 一种光纤重涂装置采用可变尺寸涂布器，用于将液体形式的涂料沉积到变化直径的光纤的一部分上。 将涂料施加到可变尺寸施加器上，该涂布器围绕光纤的圆周连续接触。 以恒定速度，可变尺寸施加器沿着光纤的长度移动，同时改变尺寸以符合用于施加均匀涂层的光纤的变化的直径。
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5.发明申请METHOD OF PHOTOSENSITIVITY OF GLASSES TO ULTRAFAST INFRARED LASER RADIATION USING HYDROGEN OR DEUTERIUM 有权使用氢或去离子水的超声波红外激光辐射光的光敏性方法公开(公告)号：US20070154143A1
公开(公告)日：2007-07-05
申请号：US11683070
申请日：2007-03-07
Applicant: Stephen Mihailov , Christopher Smelser , Dan Grobnic , Robert Walker , Ping Lu , Huimin Ding , Gino Cuglietta , Xiaoli Dai
Inventor： Stephen Mihailov , Christopher Smelser , Dan Grobnic , Robert Walker , Ping Lu , Huimin Ding , Gino Cuglietta , Xiaoli Dai
IPC: G02B6/34
CPC classification number: G02B6/02114 , G02B6/13
Abstract: A method of increasing the refractive index in a photosensitive glass is disclosed so as to induce an refractive index change of at least 10−5 within a region of the glass. The method includes the step of providing a hydrogen or deuterium loaded doped glass material wherein a dopant within the glass is photosensitive to infrared radiation in the presence of hydrogen or deuterium. The hydrogen or deuterium loaded doped glass is subsequently irradiated with femtosecond pulses of infrared light having an intensity of at least 109 W/cm2 and less than 5×1013 W/cm2.
Abstract translation: 公开了增加感光玻璃中的折射率的方法，以便在玻璃的区域内引起至少10 -5的折射率变化。 该方法包括提供氢或氘负载的掺杂玻璃材料的步骤，其中玻璃内的掺杂剂在氢或氘的存在下对红外辐射感光。 随后用强度为至少10×10 2 / cm 2以上且小于5×10 13的红外光的飞秒脉冲照射加载氢或氘的掺杂玻璃 W / cm 2 。
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Patent Agency Ranking
公开(公告)号：US07567734B2
公开(公告)日：2009-07-28
申请号：US12222392
申请日：2008-08-08
Applicant: Xiaoli Dai , Stephen J. Mihailov , Robert B. Walker , Chantal Blanchetiere , Claire Callender , Huimin Ding , Ping Lu , Dan Grobnic , Christopher W. Smelser , Gino Cuglietta
Inventor： Xiaoli Dai , Stephen J. Mihailov , Robert B. Walker , Chantal Blanchetiere , Claire Callender , Huimin Ding , Ping Lu , Dan Grobnic , Christopher W. Smelser , Gino Cuglietta
CPC classification number: G01N21/4133 , G01N2021/458 , G02B2006/12107
Abstract: An optical sensor for sensing information relating to an analyte liquid or gas, has a a planar substrate having a refractive index nc. The planar substrate supports a ridge waveguide having an unclad top portion having a refractive index nr. The substrate serves as cladding layer for the ridge waveguide at a location where the ridge waveguide contacts the substrate. A Bragg grating inscribed in the ridge waveguide has two modes for providing information relating to both temperature and refractive index of the surrounding analyte liquid or gas. A cladding mode has a different response to the analyte when compared to a Bragg resonance response. Both modes have a same reaction to temperature, wherein said Bragg grating is formed within the unclad region of ridge waveguide, wherein nc.
Abstract translation: 用于感测与分析物液体或气体有关的信息的光学传感器具有折射率nc的平面基板。 平面基板支撑具有折射率nr的未包层顶部的脊波导。 衬底用作脊波导在脊波导接触衬底的位置处的包覆层。 刻在脊波导中的布拉格光栅具有两种模式，用于提供与周围分析物液体或气体的温度和折射率相关的信息。 当与布拉格共振响应相比时，包层模式对分析物具有不同的响应。 两种模式对温度具有相同的反应，其中所述布拉格光栅形成在脊波导的未包围区域内，其中nc < 有利的是，可以仅使用单个布拉格光栅来感测多个参数。
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7.发明申请公开(公告)号：US20080310789A1
公开(公告)日：2008-12-18
申请号：US12169920
申请日：2008-07-09
Applicant: Stephen J. Mihailov , Dan Grobnic , Christopher W. Smelser , Robert B. Walker , Ping Lu , Xiaoli Dai , Huimin Ding , Gino Cuglietta
Inventor： Stephen J. Mihailov , Dan Grobnic , Christopher W. Smelser , Robert B. Walker , Ping Lu , Xiaoli Dai , Huimin Ding , Gino Cuglietta
CPC classification number: G02B6/13 , G02B6/02114 , G02B6/02138
Abstract: A method of inducing birefringence in an optical waveguide is disclosed wherein the waveguide cladding is irradiated with energy of a sufficient intensity so as to induce a stress in the optical waveguide so as to cause a multitude of spaced stress induced regions within the cladding of the optical waveguide such that there are 10 to 5000 spaced regions per mm and wherein the stress induced regions are proximate the core greater than 2 microns distance from the core-cladding interface. This waveguide has numerous uses, for example a fiber sensor.
Abstract translation: 公开了一种在光波导中引发双折射的方法，其中用足够强度的能量照射波导包层，以便在光波导中引起应力，从而在光学器件的包层内产生多个间隔开的应力感应区域 波导，使得每mm具有10至5000个间隔的区域，并且其中应力诱导区域距核心 - 包层界面的距离大于2微米的核心附近。 该波导具有许多用途，例如光纤传感器。
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公开(公告)号：US20070110367A1
公开(公告)日：2007-05-17
申请号：US11272871
申请日：2005-11-15
Applicant: Robert Walker , Stephen Mihailov , Ping Lu , Dan Grobnic , Xiaoli Dai , Huimin Ding , George Henderson , Christopher Smelser
Inventor： Robert Walker , Stephen Mihailov , Ping Lu , Dan Grobnic , Xiaoli Dai , Huimin Ding , George Henderson , Christopher Smelser
CPC classification number: G01J1/04 , G01J1/0204 , G01J1/0407 , G01J1/0477 , G01J1/4228 , G01J9/00 , G02B6/02085 , G02B6/29323 , G02B6/29385 , G02B6/4215
Abstract: The invention relates to an optical waveguide device for monitoring a characteristics of light, e.g. a wavelength. The device incorporates a waveguide, such as an optical fiber, with an embedded tilted Bragg grating operating in a regime of wavelength detuning. The grating is designed to disperse light azimuthally in two or more different directions about the fiber axis, said directions changing with wavelength. A photodetector array is provided for detecting the azimuthal distribution of light. A processor coupled to the photodetector array determines wavelength information from the detected azimuthal distribution of the out-coupled light.
Abstract translation: 本发明涉及一种用于监测光的特性的光波导器件，例如， 一个波长。 该器件包括诸如光纤的波导，其具有以波长失谐的状态工作的嵌入式倾斜布拉格光栅。 光栅被设计成围绕光纤轴在两个或更多个不同方向上以方位角分散光，所述方向随着波长而变化。 提供了用于检测光的方位角分布的光电检测器阵列。 耦合到光电检测器阵列的处理器根据检测出的外耦合光的方位分布来确定波长信息。
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9.发明授权Bragg grating and method of producing a bragg grating using an ultrafast laser 有权布拉格光栅和使用超快激光产生布拉格光栅的方法公开(公告)号：US06993221B2
公开(公告)日：2006-01-31
申请号：US10639486
申请日：2003-08-13
Applicant: Stephen J. Mihailov , Christopher W. Smelser , Ping Lu , Robert B. Walker , Dan Grobnic , Huimin Ding , George Henderson , Xiaoli Dai
Inventor： Stephen J. Mihailov , Christopher W. Smelser , Ping Lu , Robert B. Walker , Dan Grobnic , Huimin Ding , George Henderson , Xiaoli Dai
IPC: G02B6/34
CPC classification number: G02B6/02138 , G02B5/1857 , G02B6/124 , G02B2006/02161
Abstract: A novel method and apparatus for varying the index of refraction of a material using an interference pattern is disclosed. The method and apparatus incorporate an ultra short duration pulse laser source. Electromagnetic radiation provided from the laser propagates to a diffractive element positioned in close proximity to the target material. The diffracted electromagnetic radiation forms an interference pattern, the peaks of which are sufficiently intense to cause a change in index of refraction.
Abstract translation: 公开了一种使用干涉图案改变材料的折射率的新颖方法和装置。 该方法和装置结合了超短脉冲激光源。 从激光器提供的电磁辐射传播到靠近目标材料定位的衍射元件。 衍射电磁辐射形成干涉图案，其峰值足够强烈以引起折射率的变化。
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10.发明申请公开(公告)号：US20120324959A1
公开(公告)日：2012-12-27
申请号：US13592845
申请日：2012-08-23
Applicant: Christopher W. Smelser , Stephen J. Mihailov , Dan Grobnic , Ping Lu , Robert B. Walker , Gino Cuglietta , Huimin Ding , Xiaoli Dai
Inventor： Christopher W. Smelser , Stephen J. Mihailov , Dan Grobnic , Ping Lu , Robert B. Walker , Gino Cuglietta , Huimin Ding , Xiaoli Dai
CPC classification number: G02B6/13 , G02B6/02114 , G02B6/02138
Abstract: A method of producing a thermally stable grating allows the grating to be placed in environments where temperatures reach 1000° C. These gratings may be concatenated so as to form a sensor array. The method requires a step of lowering the characteristic intensity threshold of a waveguide by at least 25%, followed by irradiating the waveguide with femtosecond pulses of light having a sufficient intensity and for a sufficient duration to write the grating so that at least 60% of the grating remains after exposures of at least 10 hours at a temperature of at least 1000° C. Pre-writing a Type I grating before writing a minimal damage Type II grating lowers the characteristic threshold of the waveguide so that a stable low damage type II grating can be written; alternatively providing a hydrogen or deuterium loaded waveguide before writing the grating lowers the characteristic threshold of the waveguide.
Abstract translation: 制造热稳定光栅的方法允许将光栅置于温度达到1000℃的环境中。这些光栅可以被级联以便形成传感器阵列。 该方法需要将波导的特征强度阈值降低至少25％的步骤，随后用具有足够强度的飞秒脉冲照射波导并持续足够的持续时间来写入光栅，使得至少60％的 在至少1000℃的温度下，光栅保持至少10小时的曝光。在写入最小损伤II型光栅之前预写I型光栅降低了波导的特征阈值，使得稳定的低损伤II型 光栅可写; 或者在写入光栅之前提供加氢或氘负载的波导降低波导的特征阈值。
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