WO2001038933A3 - Optical switching/modulation device - Google Patents

Optical switching/modulation device Download PDF

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Publication number
WO2001038933A3
WO2001038933A3 PCT/EP2000/011128 EP0011128W WO0138933A3 WO 2001038933 A3 WO2001038933 A3 WO 2001038933A3 EP 0011128 W EP0011128 W EP 0011128W WO 0138933 A3 WO0138933 A3 WO 0138933A3
Authority
WO
WIPO (PCT)
Prior art keywords
waveguide
central electrode
optical switching
modulation device
multimodal
Prior art date
Application number
PCT/EP2000/011128
Other languages
French (fr)
Other versions
WO2001038933A2 (en
Inventor
Davide Sciancalepore
Orto Flavio Dell
Original Assignee
Optical Technologies Italia
Davide Sciancalepore
Orto Flavio Dell
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Optical Technologies Italia, Davide Sciancalepore, Orto Flavio Dell filed Critical Optical Technologies Italia
Priority to AU12792/01A priority Critical patent/AU1279201A/en
Priority to EP00974517A priority patent/EP1232415A2/en
Publication of WO2001038933A2 publication Critical patent/WO2001038933A2/en
Publication of WO2001038933A3 publication Critical patent/WO2001038933A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices 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
    • G02F1/29—Devices 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 for the control of the position or the direction of light beams, i.e. deflection
    • G02F1/31—Digital deflection, i.e. optical switching
    • G02F1/313—Digital deflection, i.e. optical switching in an optical waveguide structure
    • G02F1/3137—Digital deflection, i.e. optical switching in an optical waveguide structure with intersecting or branching waveguides, e.g. X-switches and Y-junctions
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/122—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode having a particular pattern
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00—Materials and properties
    • G02F2202/20—LiNbO3, LiTaO3

Abstract

An optical switching/modulation device (1) comprises a substrate (2) made from lithium niobate, a first, a second and a third waveguide (3-5) for the light, formed on the substrate and forming a Y structure, a central electrode (6) lying between the second and third waveguide (4, 5) and a pair of outer electrodes (7, 8) adjacent to the second and third waveguide (4, 5) respectively on opposite sides from the central electrode (6); the waveguides (3-5) are connected by means of a connecting waveguide (10) having a longitudinal axis (9) and including a multimodal transmission region (14); the central electrode (6) has a longitudinal extension (6b) extending within the multimodal region (14) and having an end (6c) terminating within the multimodal region (14), in such a way that a particularly high value of the extinction ratio of the device can be provided.
PCT/EP2000/011128 1999-11-23 2000-11-09 Optical switching/modulation device WO2001038933A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU12792/01A AU1279201A (en) 1999-11-23 2000-11-09 Optical switching/modulation device
EP00974517A EP1232415A2 (en) 1999-11-23 2000-11-09 Optical switching/modulation device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP99123324.8 1999-11-23
EP99123324 1999-11-23
US16791799P 1999-11-30 1999-11-30
US60/167,917 1999-11-30

Publications (2)

Publication Number Publication Date
WO2001038933A2 WO2001038933A2 (en) 2001-05-31
WO2001038933A3 true WO2001038933A3 (en) 2001-11-08

Family

ID=56290075

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/011128 WO2001038933A2 (en) 1999-11-23 2000-11-09 Optical switching/modulation device

Country Status (3)

Country Link
EP (1) EP1232415A2 (en)
AU (1) AU1279201A (en)
WO (1) WO2001038933A2 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142775A (en) * 1976-09-27 1979-03-06 Bell Telephone Laboratories, Incorporated Optical signal processing devices
US4813757A (en) * 1986-11-26 1989-03-21 Hitachi, Ltd. Optical switch including bypass waveguide
US4917449A (en) * 1987-11-20 1990-04-17 Telefonaktiebolaget L M Ericsson Method of disposing a polarization directing optoelectronic coupler and a coupler for carrying out the method
US5123069A (en) * 1989-10-26 1992-06-16 Oki Electric Industry Co., Ltd. Waveguide-type optical switch
JPH05241205A (en) * 1992-02-28 1993-09-21 Sumitomo Cement Co Ltd Optical switch
US5303315A (en) * 1992-09-01 1994-04-12 Telefonaktiebolaget L M Ericsson Near Z digital switch
US5623568A (en) * 1995-09-15 1997-04-22 Lucent Technologies Inc. Compact and fabrication tolerant high speed digital optical Y-switches
US5781670A (en) * 1994-09-09 1998-07-14 Gemfire Corporation Optical frequency channel selection filter with electronically-controlled grating structures

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142775A (en) * 1976-09-27 1979-03-06 Bell Telephone Laboratories, Incorporated Optical signal processing devices
US4813757A (en) * 1986-11-26 1989-03-21 Hitachi, Ltd. Optical switch including bypass waveguide
US4917449A (en) * 1987-11-20 1990-04-17 Telefonaktiebolaget L M Ericsson Method of disposing a polarization directing optoelectronic coupler and a coupler for carrying out the method
US5123069A (en) * 1989-10-26 1992-06-16 Oki Electric Industry Co., Ltd. Waveguide-type optical switch
JPH05241205A (en) * 1992-02-28 1993-09-21 Sumitomo Cement Co Ltd Optical switch
US5303315A (en) * 1992-09-01 1994-04-12 Telefonaktiebolaget L M Ericsson Near Z digital switch
US5781670A (en) * 1994-09-09 1998-07-14 Gemfire Corporation Optical frequency channel selection filter with electronically-controlled grating structures
US5623568A (en) * 1995-09-15 1997-04-22 Lucent Technologies Inc. Compact and fabrication tolerant high speed digital optical Y-switches

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
NELSON W H ET AL: "DIGITAL OPTICAL SWITCHES FOR WAVELENGTH DIVISION MULTIPLEXING WITH EXTINCTION RATIO EXCEEDING 20 DB AT BOTH 1.3 M AND 1.5 M", PROCEEDINGS OF THE LASERS AND ELECTRO-OPTICS SOCIETY ANNUAL MEETING. (LEOS),US,NEW YORK, IEEE, vol. MEETING 7, 1994, pages 259 - 260, XP000510697, ISBN: 0-7803-1471-9 *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 703 (P - 1666) 22 December 1993 (1993-12-22) *

Also Published As

Publication number Publication date
WO2001038933A2 (en) 2001-05-31
EP1232415A2 (en) 2002-08-21
AU1279201A (en) 2001-06-04

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