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1. WO2001061389 - GUIDED WAVE OPTICAL SWITCH BASED ON AN ACTIVE SEMICONDUCTOR AMPLIFIER AND A PASSIVE OPTICAL COMPONENT

Publication Number WO/2001/061389
Publication Date 23.08.2001
International Application No. PCT/US2001/005428
International Filing Date 20.02.2001
Chapter 2 Demand Filed 19.09.2001
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
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
H01S 5/026 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
02Structural details or components not essential to laser action
026Monolithically integrated components, e.g. waveguides, monitoring photo-detectors or drivers
H01S 5/10 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
10Construction or shape of the optical resonator
H01S 5/40 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
40Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02-H01S5/30128
H01S 5/50 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
50Amplifier structures not provided for in groups H01S5/02-H01S5/30100
CPC
G02B 2006/12145
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
10of the optical waveguide type
12of the integrated circuit kind
12133Functions
12145Switch
G02B 6/12004
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
10of the optical waveguide type
12of the integrated circuit kind
12004Combinations of two or more optical elements
G02F 1/2257
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
2257the optical waveguides being made of semiconducting material
G02F 1/3138
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
29for the control of the position or the direction of light beams, i.e. deflection
31Digital deflection, ; i.e. optical switching
313in an optical waveguide structure
3137with intersecting or branching waveguides, e.g. X-switches and Y-junctions
3138the optical waveguides being made of semiconducting materials
H01S 5/026
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
02Structural details or components not essential to laser action
026Monolithically integrated components, e.g. waveguides, monitoring photo-detectors, drivers
H01S 5/1064
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
10Construction or shape of the optical resonator ; , e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
1053Comprising an active region having a varying composition or cross-section in a specific direction
1064varying width along the optical axis
Applicants
  • NANOVATION TECHNOLOGIES, INC. [US]/[US]
Inventors
  • LI, Xun
  • HUANG, Wei-Ping
  • XU, Chenglin
  • LIANG, Yi
Priority Data
60/183,31517.02.2000US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) GUIDED WAVE OPTICAL SWITCH BASED ON AN ACTIVE SEMICONDUCTOR AMPLIFIER AND A PASSIVE OPTICAL COMPONENT
(FR) COMMUTATEUR OPTIQUE A ONDES GUIDEES BASE SUR UN AMPLIFICATEUR ACTIF A SEMI-CONDUCTEUR ET UN COMPOSANT OPTIQUE PASSIF
Abstract
(EN) A guided wave optical switch having a passive optical component optically coupled to a low gain optical amplifier - both being formed monolithically in a semiconductor substrate. The passive optical component may comprise a single-mode -3 dB optical power splitter that receives at an input an optical signal and splits that optical signal approximately equally between two outputs. The passive optical component may also comprise an optical isolator, an optical circulator, and other known passive optical devices. The low gain optical amplifier includes a waveguide having an active region that may provide optical signal gain when excited by an electrical current provided by a metal or metallic electrode connected to the active region. The active region may be a bulk active region, a multiple quantum well active region, or the waveguide may comprise a buried heterojunction waveguide having either a bulk or multiple quantum well active region.
(FR) L'invention porte sur un commutateur optique à ondes guidées comportant un composant optique passif optiquement couplé à un amplificateur optique à faible gain, tous deux étant formés comme monolithes dans un substrat semi-conducteur. Le composant optique passif, qui peut comporter un diviseur de puissance monomode de 3dB recevant à une entrée un signal optique et le divisant en deux signaux de sortie sensiblement égaux, peut en outre comporter un isolateur optique, un circulateur optique et d'autres dispositifs optiques passifs connus. L'amplificateur optique à faible gain comporte un guide d'ondes présentant une zone active assurant un gain de signal optique lorsqu'excitée par un courant électrique provenant d'un métal ou d'une électrode métallique lui étant reliée, ladite zone active pouvant être du type massivement active ou à puits quantiques multiples. Le guide d'ondes peut par ailleurs être du type à hétérojonction enfouie et à zone active massivement active ou à puits quantiques multiples.
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