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1. WO2005060522 - LOW-LOSS COMPACT REFLECTIVE TURNS IN OPTICAL WAVEGUIDES

Publication Number WO/2005/060522
Publication Date 07.07.2005
International Application No. PCT/US2004/039793
International Filing Date 22.04.2003
IPC
G02B 6/12 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
10of the optical waveguide type
12of the integrated circuit kind
G02B 6/122 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
10of the optical waveguide type
12of the integrated circuit kind
122Basic optical elements, e.g. light-guiding paths
G02B 6/125 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
10of the optical waveguide type
12of the integrated circuit kind
122Basic optical elements, e.g. light-guiding paths
125Bends, branchings or intersections
G02B 6/134 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
10of the optical waveguide type
12of the integrated circuit kind
13Integrated optical circuits characterised by the manufacturing method
134by substitution by dopant atoms
G02F 1/225 2006.1
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
21by interference
225in an optical waveguide structure
CPC
G02B 2006/12104
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
10of the optical waveguide type
12of the integrated circuit kind
12083Constructional arrangements
12104Mirror; Reflectors or the like
G02B 2006/12142
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
10of the optical waveguide type
12of the integrated circuit kind
12133Functions
12142Modulator
G02B 6/12002
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
10of the optical waveguide type
12of the integrated circuit kind
12002Three-dimensional structures
G02B 6/122
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
10of the optical waveguide type
12of the integrated circuit kind
122Basic optical elements, e.g. light-guiding paths
G02B 6/125
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
10of the optical waveguide type
12of the integrated circuit kind
122Basic optical elements, e.g. light-guiding paths
125Bends, branchings or intersections
G02B 6/1342
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
10of the optical waveguide type
12of the integrated circuit kind
13Integrated optical circuits characterised by the manufacturing method
134by substitution by dopant atoms
1342using diffusion
Applicants
  • THE GOVERNMENT OF THE UNITED STATES as represented by THE SECRETARY OF THE NAVY; [US]/[US]
Inventors
  • THE GOVERNMENT OF THE UNITED STATES as represented by THE SECRETARY OF THE NAVY;
  • HOWERTON, Marta, M.
  • MOELLER, Robert, P.
Agents
  • KARASEK, John, J.
Priority Data
10/165,94011.06.2002US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) LOW-LOSS COMPACT REFLECTIVE TURNS IN OPTICAL WAVEGUIDES
(FR) COURBES REFLECHISSANTES COMPACTES A FAIBLES PERTES DE GUIDES D'ONDES OPTIQUES
Abstract
(EN) This invention pertains to a device (10) and method for making same. The device (10) includes a substrate (12) suitable for supporting pathways for optical signals; separate pathways disposed on the substrate (12) suitable for propagating optical signals, the pathways including an input and an output optical pathway; and a reflective surface in operative contact with the input and output pathways for receiving an optical signal from the input pathway and reflecting the optical signal into the output pathway. The method for making the device (10) includes the steps of providing two separate optical pathways on a single substrate (12), one being an input pathway and the other being an output pathway.
(FR) La présente invention se rapporte à un dispositif et à un procédé de fabrication de ce dispositif. Ledit dispositif comprend un substrat conçu pour supporter des voies pour signaux optiques; des voies séparées disposées sur le substrat permettant la propagation de signaux optiques, lesdites voies incluant une voie optique d'entrée et une voie optique de sortie; et une surface réfléchissante en contact fonctionnel avec les voies d'entrée et de sortie de manière à recevoir un signal optique à partir de la voie d'entrée et à réfléchir le signal optique dans la voie de sortie. Le procédé de fabrication de ce dispositif comprend les étapes consistant à former deux voies optiques séparées sur un substrat unique, l'une étant une voie d'entrée et l'autre étant une voie de sortie; à se doter d'une surface réfléchissante en contact fonctionnel avec lesdites voies de sorte qu'un signal optique d'entrée pénètre par la voie d'entrée, soit réfléchi par la surface réfléchissante vers l'intérieur de la voie de sortie, et soit transmis vers l'extérieur par la voie de sortie, ledit dispositif pouvant être fabriqué sur un substrat en niobate de lithium ayant des voies obtenues par diffusion de titane avec une perte inférieure ou égale à environ 1,0 dB, dans un espace qui est au moins 1/5 de l'espace requis par un dispositif identique ou similaire conforme l'état antérieur de la technique.
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