公开(公告)号：US20080007952A1

公开(公告)日：2008-01-10

申请号：US11819688

申请日：2007-06-28

Applicant: Toru Iwane

Inventor： Toru Iwane

IPC: G02B5/18 ,  B29D11/00 ,  G02B5/32 ,  F21V14/00

CPC classification number: G02F1/13342 ,  G02F1/13306 ,  G02F1/133615 ,  G02F2201/307 ,  G03B13/28 ,  G03B17/44

Abstract: A display element includes a display substrate that comprises a liquid crystal; and a plurality of diffraction gratings having different diffraction modes, arranged in regions of the single display substrate that are different from one another.

Abstract translation: 显示元件包括包括液晶的显示基板; 以及具有不同衍射模式的多个衍射光栅，布置在单个显示器基板的彼此不同的区域中。

公开(公告)号：US07317852B2

公开(公告)日：2008-01-08

申请号：US11496168

申请日：2006-07-31

Applicant: David A. G. Deacon ,  Steven J. Madden ,  Jorg Hubner

Inventor： David A. G. Deacon ,  Steven J. Madden ,  Jorg Hubner

IPC: G02B6/34 ,  G02B6/02

CPC classification number: G02B6/29319 ,  G02B6/02204 ,  G02B6/29322 ,  G02B6/29338 ,  G02B6/29383 ,  G02B6/29395 ,  G02F1/0147 ,  G02F2201/17 ,  G02F2201/302 ,  G02F2201/307 ,  G02F2203/585 ,  H04J14/0201

Abstract: A set of three gratings may be operated in a vernier loop fashion to select a particular wavelength from a wavelength division multiplexed system. As a result, an optical add/drop multiplexer may be provided that can be tuned to select a desired wavelength. In one embodiment, the tuning may be done thermo-optically.

Abstract translation: 一组三个光栅可以以游标循环方式操作，以从波分复用系统中选择特定波长。 结果，可以提供可以被调谐以选择所需波长的光分插复用器。 在一个实施例中，调谐可以热光学完成。

公开(公告)号：US20070258673A1

公开(公告)日：2007-11-08

申请号：US11430783

申请日：2006-05-08

Applicant: Mahmoud El-Sherif

Inventor： Mahmoud El-Sherif

IPC: G02F1/295

CPC classification number: G02B6/02195 ,  G02B6/02066 ,  G02F2201/307

Abstract: A method and apparatus for tunable on-fiber Bragg gratings for DWDM and other applications on a small section of the core of single mode communication of an optical fiber. The method comprises etching most of the cladding on a small section of the fiber; coating the etched portion with a metallic electrode material and then with a layer of an electrooptic material; coating the electrooptic material with a photoresist; producing the Bragg grating pattern using a holographic process or on-axis interferometry; dissolving the non-exposed photoresist,; etching the grating pattern into the electrooptic material, and coating the Bragg gratings with a metallic material constructing the outer electrode. The presence of an electric signal on the electrodes will change the optical properties of the electrooptic material, as well as the diffraction/reflection properties of the Bragg gratings.

Abstract translation: 一种用于DWDM等可调光纤布拉格光栅的方法和装置，在光纤单模通信核心的一小部分上应用其他应用。 该方法包括蚀刻纤维的小部分上的大部分包层; 用金属电极材料涂覆蚀刻部分，然后用电光材料层涂覆蚀刻部分; 用光致抗蚀剂涂覆电光材料; 使用全息处理或在轴干涉测量法产生布拉格光栅图案; 溶解未曝光的光致抗蚀剂; 将光栅图案蚀刻到电光材料中，并用构成外电极的金属材料涂布布拉格光栅。 在电极上存在电信号将改变电光材料的光学性质以及布拉格光栅的衍射/反射特性。

公开(公告)号：US20070211987A1

公开(公告)日：2007-09-13

申请号：US11541783

申请日：2006-10-02

Applicant: Etsuo Koyama ,  Hiroyoshi Matsumura

Inventor： Etsuo Koyama ,  Hiroyoshi Matsumura

IPC: G02B6/26

CPC classification number: G02F1/133553 ,  G02F1/216 ,  G02F1/2955 ,  G02F2201/307 ,  G02F2203/055 ,  G02F2203/585

Abstract: To provide with a wavelength-selection optical switch able to select a light with a certain wavelength and an optical add/drop multiplexer using the same. An optical switch comprising: a silicon substrate; a glass substrate arranged to face a surface of the silicon substrate and having a transparent electrode layer in its opposing surface; a light diffraction reflection layer aligned on a surface of the silicon substrate; a liquid crystal layer aligned between the light diffraction reflection layer and the transparent electrode layer; a silicon substrate electrical terminal extracted from a rear surface of the silicon substrate; and a means for applying voltage between the transparent electrode layer and the silicon substrate electrical terminal; wherein selection of wavelength of light diffracted and reflected by the light diffraction reflection layer is possible by controlling the refraction index of the liquid crystal layer through the voltage. Wavelength multiplexed light signal is widened its beam diameter by a collimator lens, the wavelength multiplexed light signal with widened beam diameter is directed to the optical switch, a light signal which has wavelength selected through the applied voltage on the optical switch is only diffracted and reflected by the optical switch.

Abstract translation: 提供能够选择具有一定波长的光的波长选择光学开关和使用其的光分插复用器。 一种光开关，包括：硅衬底; 玻璃基板，其布置成面对硅基板的表面并且在其相对表面中具有透明电极层; 在硅衬底的表面上对准的光衍射反射层; 在所述光衍射反射层和所述透明电极层之间排列的液晶层; 从硅衬底的后表面提取的硅衬底电端子; 以及用于在所述透明电极层和所述硅衬底电端子之间施加电压的装置; 其中通过控制液晶层的折射率通过该电压，可以选择由光衍射反射层衍射和反射的光的波长。 波长复用光信号通过准直透镜加宽其光束直径，具有加宽光束直径的波长复用光信号被引导到光开关，通过光开关上的施加电压选择的波长的光信号仅被衍射和反射 通过光开关。

公开(公告)号：US20070183048A1

公开(公告)日：2007-08-09

申请号：US10828205

申请日：2004-04-21

Applicant: Isabelle Riant ,  Christian Belouet

Inventor： Isabelle Riant ,  Christian Belouet

IPC: G02B27/00

CPC classification number: B82Y20/00 ,  G02F1/3515 ,  G02F1/355 ,  G02F1/365 ,  G02F2201/307 ,  G02F2202/36 ,  G02F2203/055

Abstract: A tunable optical filter comprising an index grating produced in a waveguide defining a longitudinal direction of propagation of an incident optical signal, said grating being defined by a plurality of optical parameters, is characterized in that the optical guide contains semiconductor nanoparticles and in that the index grating is made up of a refractive index variation in the guide that is at least partly induced by a Kerr effect linked to the 3rd order dielectric susceptibility (χ3) of said nanoparticles, at least one of said parameters of said index grating being modified by application of an optical control signal coupled into the guide and propagating longitudinally in said guide.

Abstract translation: 一种可调谐滤光器，包括在定义入射光信号的纵向传播方向的波导中产生的折射光栅，所述光栅由多个光学参数限定，其特征在于，所述光导体包含半导体纳米颗粒， 光栅由导向器中的折射率变化构成，该折射率变化至少部分地是通过与所述第二极性的第三级介质磁化率（chi ^{3）连接的克尔效应而引起的 纳米颗粒，所述索引光栅的所述参数中的至少一个通过施加耦合到所述引导件中并在所述引导件中纵向传播的光学控制信号来修改。}

公开(公告)号：US20070064756A1

公开(公告)日：2007-03-22

申请号：US11437791

申请日：2006-05-22

Applicant: Raman Kashyap

Inventor： Raman Kashyap

IPC: H01S5/00

CPC classification number: G02F1/0147 ,  G02F1/353 ,  G02F1/3775 ,  G02F2201/307 ,  H01S5/0092 ,  H01S5/02248 ,  H01S5/02407 ,  H01S5/02438 ,  H01S5/147

Abstract: In a first broad aspect, the invention provides a light source. The light source includes a semiconductor laser for emitting laser light at a first frequency. The light source also includes an optical fibre that includes a fibre Bragg grating. The fibre Bragg grating is optically coupled to the semiconductor laser for receiving the laser light, reflecting a reflected portion of the laser light towards the laser and allowing the transmitted portion of the laser light to pass through the fibre Bragg grating. The fibre Bragg grating has a temperature-dependant reflection spectrum. A frequency converting optical element is optically coupled to the fibre Bragg grating for receiving the transmitted portion of the laser light and converting at least a fraction of the transmitted portion of the laser light into a converted light having a second frequency different from the first frequency. An output port is optically coupled to the frequency converting optical element for outputting the converted light. A temperature controller is thermally coupled to the fibre Bragg grating for modulating a temperature of the fibre Bragg grating so as to modulate the reflection spectrum.

Abstract translation: 在第一个广泛的方面，本发明提供一种光源。 光源包括用于以第一频率发射激光的半导体激光器。 光源还包括包括光纤布拉格光栅的光纤。 光纤布拉格光栅光学耦合到半导体激光器以接收激光，将激光的反射部分反射向激光器并允许透射的部分激光通过光纤布拉格光栅。 光纤布拉格光栅具有温度依赖反射光谱。 频率转换光学元件光学耦合到光纤布拉格光栅，用于接收激光的透射部分，并将激光的透射部分的至少一部分转换成具有与第一频率不同的第二频率的转换光。 输出端口光耦合到变频光学元件，用于输出转换的光。 温度控制器热耦合到光纤布拉格光栅，用于调制光纤布拉格光栅的温度，以便调制反射光谱。

公开(公告)号：US20060251424A1

公开(公告)日：2006-11-09

申请号：US11417093

申请日：2006-05-03

Applicant: Jeffrey Nicholson ,  Paul Westbrook

Inventor： Jeffrey Nicholson ,  Paul Westbrook

IPC: H04B10/12

CPC classification number: G02F1/365 ,  G02F2/002 ,  G02F2201/02 ,  G02F2201/307 ,  G02F2203/56

Abstract: An arrangement for generating beat notes with a relatively high signal-to-noise ratio (SNR) utilizes a pulsed laser source coupled into a section of post-processed highly-nonlinear optical fiber (HNLF) to generate a frequency comb having one or more regions of enhanced spectral power. A second laser signal source is overlapped with the frequency comb to form one or more “beat notes” at difference frequencies(y) between the second source and the continuum comb. By virtue of the post-processing, areas of spectral enhancement are formed along the comb, and are positioned to interact with the second laser signal to generate optical beat notes. The second laser signal may be from an external source (forming beat notes from a signal “outside” of the comb), or may be a frequency-multiplied version of the generated supercontinuum (forming beat notes from a signal “within” the comb).

Abstract translation: 用于产生具有相对高的信噪比（SNR）的节拍的装置利用耦合到后处理的高非线性光纤（HNLF）的一部分中的脉冲激光源来产生具有一个或多个区域 的增强光谱功率。 第二激光信号源与频率梳重叠，以在第二源和连续梳之间的差频（y）处形成一个或多个“拍音”。 通过后处理，沿着梳状物形成光谱增强的区域，并且被定位成与第二激光信号相互作用以产生光学拍音。 第二激光信号可以来自外部源（从梳状物的“外部”的信号形成节拍音符），或者可以是所生成的超连续谱的倍频版本（从“梳”内的信号形成节奏音符） 。

公开(公告)号：US07133582B1

公开(公告)日：2006-11-07

申请号：US10728009

申请日：2003-12-04

Applicant: Behzad Moslehi ,  Marco A. Hernandez

Inventor： Behzad Moslehi ,  Marco A. Hernandez

IPC: G02B6/00 ,  G02B6/34 ,  G02F1/295

CPC classification number: G02F1/0128 ,  G02B6/02195 ,  G02B6/02204 ,  G02F1/0115 ,  G02F2201/307

Abstract: A tunable optical fiber has a grating which is attached to an expander responsive to an external control including a temperature or a magnetic field. The expander changes length, and this is coupled to the optical fiber, which changes pitch, thereby accomplishing a tuning change. The expander may be coupled to the grating directly, or through an expansion reducer, which produces a greater range of tuning. Terfenol-D™ may be used for the expander material, and tubes which include a bonding point adjacent to the extents of the grating may form the extent reducers.

Abstract translation: 可调谐光纤具有响应于包括温度或磁场的外部控制而连接到扩展器的光栅。 扩展器改变长度，并且其耦合到光纤，其改变音调，从而实现调谐改变。 扩展器可以直接耦合到光栅，或者通过扩展减速器耦合，其产生更大的调谐范围。 Terfenol-D TM可以用于膨胀器材料，并且包括与光栅范围相邻的接合点的管可以形成减径器。

公开(公告)号：US20060228084A1

公开(公告)日：2006-10-12

申请号：US11424401

申请日：2006-06-15

Applicant: Gurtej Sandhu ,  Guy Blalock

Inventor： Gurtej Sandhu ,  Guy Blalock

IPC: G02B6/10

CPC classification number: G02B6/125 ,  G02F1/0102 ,  G02F1/0147 ,  G02F1/2257 ,  G02F2201/30 ,  G02F2201/307 ,  G02F2202/104

Abstract: Resistive heaters formed in two mask counts on a surface of a grating of a thermo optic device thereby eliminating one mask count from prior art manufacturing methods. The resistive heater is comprised of a heater region and a conductive path region formed together in a first mask count from a relatively high resistance material. A conductor formed from a relatively low resistance material is formed directly on the conductive path region in a second mask count. Thermo optic devices formed by these two mask count methods are also described.

Abstract translation: 在热光器件的光栅的表面上形成两个掩模计数的电阻加热器，从而从现有技术的制造方法中消除一个掩模计数。 电阻加热器包括加热器区域和形成在来自相对高电阻材料的第一掩模计数中的导电路径区域。 由相对低电阻材料形成的导体以第二掩模计数直接形成在导电路径区域上。 还描述了通过这两种掩模计数方法形成的热光学器件。

公开(公告)号：US07088877B2

公开(公告)日：2006-08-08

申请号：US09881218

申请日：2001-06-13

Applicant: Ansheng Liu ,  Mario J. Paniccia ,  Remus Nicolaescu

Inventor： Ansheng Liu ,  Mario J. Paniccia ,  Remus Nicolaescu

IPC: G02F1/295

CPC classification number: G02F1/025 ,  G02B6/124 ,  G02B2006/12097 ,  G02B2006/12135 ,  G02F1/0147 ,  G02F2201/307

Abstract: A tunable Bragg grating method and apparatus. In one aspect of the present invention, a method according to an embodiment of the present invention includes directing an optical beam into a first end of an optical path having the first end and a second end disposed in a semiconductor substrate, reflecting a first portion of the optical beam having a first center wavelength back out from the first end of the optical path and tuning the optical path to reflect a second portion of the optical beam having a second center wavelength back out from the first end of the optical path. In one embodiment, the Bragg grating is tuned with a heater used to adjust a temperature of the semiconductor substrate. In another embodiment, charge in charge modulated regions along the optical path is modulated to tune the Bragg grating.