WO1997033192A1 - Optische mehrwege-weiche aus elektrisch einstellbaren photonen-kristallen - Google Patents
Optische mehrwege-weiche aus elektrisch einstellbaren photonen-kristallen Download PDFInfo
- Publication number
- WO1997033192A1 WO1997033192A1 PCT/EP1997/001064 EP9701064W WO9733192A1 WO 1997033192 A1 WO1997033192 A1 WO 1997033192A1 EP 9701064 W EP9701064 W EP 9701064W WO 9733192 A1 WO9733192 A1 WO 9733192A1
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- WO
- WIPO (PCT)
- Prior art keywords
- optical
- photon
- light
- crystal
- geometry
- Prior art date
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Classifications
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- 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
- G02F1/295—Analog deflection from or in an optical waveguide structure]
- G02F1/2955—Analog deflection from or in an optical waveguide structure] by controlled diffraction or phased-array beam steering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B1/00—Devices without movable or flexible elements, e.g. microcapillary devices
- B81B1/006—Microdevices formed as a single homogeneous piece, i.e. wherein the mechanical function is obtained by the use of the device, e.g. cutters
- B81B1/008—Microtips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/1225—Basic optical elements, e.g. light-guiding paths comprising photonic band-gap structures or photonic lattices
-
- 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
- G02F1/3132—Digital deflection, i.e. optical switching in an optical waveguide structure of directional coupler type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y15/00—Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
-
- 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
- G02F1/01—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 intensity, phase, polarisation or colour
- G02F1/0126—Opto-optical modulation, i.e. control of one light beam by another light beam, not otherwise provided for in this subclass
-
- 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
- G02F1/01—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 intensity, phase, polarisation or colour
- G02F1/061—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 intensity, phase, polarisation or colour based on electro-optical organic material
-
- 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
- G02F1/293—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 by another light beam, i.e. opto-optical deflection
-
- 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
- G02F2202/02—Materials and properties organic material
- G02F2202/022—Materials and properties organic material polymeric
-
- 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
- G02F2202/32—Photonic crystals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/778—Nanostructure within specified host or matrix material, e.g. nanocomposite films
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/778—Nanostructure within specified host or matrix material, e.g. nanocomposite films
- Y10S977/781—Possessing nonosized surface openings that extend partially into or completely through the host material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/84—Manufacture, treatment, or detection of nanostructure
- Y10S977/887—Nanoimprint lithography, i.e. nanostamp
Definitions
- the solution according to the invention includes an optical multi-way switch made of electrically adjustable photon crystals.
- Band gap photon crystals are known as 2- and 3-dimensional dielectric structures in which the propagation of electromagnetic waves, depending on or regardless of their direction of propagation, is prohibited. See: l.jJohn, "", Phys. Rev. Lett. 58, 2486 (1987)
- Such 2- and 3-dimensional structures are often called "photonic crystals" [2].
- photonic crystals As is known, these structures can be produced with high precision by nanolithography with electron beam-induced deposition. If the photonic crystals are filled in their interspaces with nonlinear-optical materials or with liquid crystals and the entire structure is brought into a strong electric field, the optically effective lattice constant in the crystal can be adjusted by changing the optical path and thus the fil ⁇ interaction of the element can be varied electrically.
- a manufacturing method with the extended siliconization process with dry etching and diffusion and subsequent filling of the elements, with which such assemblies can be manufactured in a highly integrated and cost-effective manner.
- Tunable filters for optical communications and telecommunications are e.g. Z. realized in the form of long optical fibers, which get their filtering effect through Bragg diffraction gratings inscribed with UV light in special fibers.
- Fiber filters and fiber couplers must always be inserted into a macroscopic optical arrangement using plugs or splices using hybrid technology. Miniaturization of the assemblies cannot be achieved with this.
- photon crystals are made from 2 and 3 dimensions
- the aim of the invention is a low-loss switch arrangement which is based on electrically adjustable photon crystals and thus guarantees a high packing density.
- a 2- or 3-dimensional photon crystal is produced from high-index dielectric material with the aid of electron beam-induced deposition or with nanolithography.
- Photon crystals are 3-dimensional dielectric structures in which electromagnetic waves of a certain wavelength range are prohibited, regardless of their direction of propagation.
- Such photon crystals with band gaps and, depending on the design, one or more narrow-band pass regions act as narrow-band filters. Calculations and microwave measurements showed that a face-centered cubic or even a two-dimensional cubic arrangement of holes in a dielectric matrix or of dielectric rods of such photonic Show band gaps. 6 levels are sufficient to achieve a high quality element.
- the arrangement can be electrically tuned in a specific wavelength range and adjusted with high precision.
- the filter can be adjusted within a wide range.
- the filter can be used as a medium-speed switch. A switchable mirror can thus be realized with a crystal filled with nonlinear material.
- the switch according to the invention is realized from adjustable photon crystals.
- These photon crystals consist of long, miniaturized needles that act as high-precision optical mirrors. An optical geometry is created from these needles in the form of photonic
- Transmission characteristics in individual crystal areas can be changed separately until reflection.
- Fixed photon mirrors are arranged at an angle to the individual directional areas of the optical geometry directly in the optical path, so that the light can be coupled in and out via the fixed photon mirrors.
- the function of an optical switch is thus realized by changing the transmission characteristics of the optical geometry in conjunction with the targeted coupling out of the light via the individual fixed photon mirrors.
- FIG. 1 shows the diagram of a tunable photon crystal which is used as a narrow-band filter in a single-mode waveguide.
- an optically adjustable, low-loss 2-way switch can be constructed in accordance with FIG. 2.
- An optical geometry designed as a tunable mirror is arranged in the optical path between fixed photon mirrors.
- the fixed photon mirrors are aligned in such a way that the light is reflected at an angle of 22.5 degrees and thus at an angle of 45 degrees strikes the geometry of the photon crystal filled with nonlinear material, which is designed as a tunable mirror.
- Geometry of the photon acting as a tunable mirror Crystal is switched in the forward direction, the light is let through unaffected. If the geometry of the photon crystal acting as a tunable mirror is switched into reflection, the light is reflected precisely in the fixed mirror, which couples the light into the further waveguide.
- Such components are used in networks of switching technology and enable service selection. The packing density is greatly increased with this technology, because the assembly of mirrors and filter switches is less than 12 ⁇ m in length and width.
- a 3-way switch according to FIG. 3 can thus be realized with an element with beam paths oriented at 90 degrees to one another.
- the intensity of the beam can also be divided in an electrically controlled manner in addition to the setting of the reflection and transmission.
- Another possibility of influencing the electrical setting of the switch is to couple additionally guided light into the photon crystal by means of a controllable light source directed at the photon crystal filled with nonlinear optical material.
- FIG. 4 shows the diagram of an electrically adjustable multi-way switch which is constructed from a plurality of 3-way switches from electrically separately tunable photon crystal regions and deflection mirrors made from photon crystals. This arrangement thus represents a cascaded coupler switch made of miniaturized switchable 4-way directional couplers made of photon crystals with an adjustable band pass.
- FIG. 5 shows the diagram of an electrically adjustable multi-way switch. The multi-way switch is made up of several 3-way switches made of electrically separately tunable photon crystal areas and thus represents a cascaded coupler switch made of miniaturized switchable 4-way directional couplers with an adjustable band pass.
- integrated circuits for optical signal processing and for optical computers with high packing density can be built. It is also possible to implement fixed or variable measuring circuits for security tasks and test procedures for data communication on glass fibers.
- the solution according to the invention represents a new switchable switch arrangement which can be used in integrated technology with a high packing density and which enables switching with voltages and / or with light between at least two optical paths and their crossing.
- the integration eliminates the space required for plugs to insert the element into the optical paths, for example of a computer circuit.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/142,405 US6064506A (en) | 1996-03-05 | 1997-03-03 | Optical multi-channel separating filter with electrically adjustable photon crystals |
JP53144697A JP3887421B2 (ja) | 1996-03-05 | 1997-03-03 | 電気的に切り替え可能な光子結晶からなる光学的多光路スイッチ |
CA002248372A CA2248372C (en) | 1996-03-05 | 1997-03-03 | Optical multi-channel separating filter with electrically adjustable photon crystals |
AT97906812T ATE209791T1 (de) | 1996-03-05 | 1997-03-03 | Optische mehrwege-weiche aus elektrisch einstellbaren photonen-kristallen |
EP97906812A EP0885402B1 (de) | 1996-03-05 | 1997-03-03 | Optische mehrwege-weiche aus elektrisch einstellbaren photonen-kristallen |
DE59705549T DE59705549D1 (de) | 1996-03-05 | 1997-03-03 | Optische mehrwege-weiche aus elektrisch einstellbaren photonen-kristallen |
NO19984000A NO319562B1 (no) | 1996-03-05 | 1998-08-31 | Optisk flerveis omkobler bestaende av elektrisk omkoblingsbare ortoelektroniske krystaller |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19610656.7 | 1996-03-05 | ||
DE19610656A DE19610656A1 (de) | 1996-03-05 | 1996-03-05 | Optische Mehrwege-Weiche mit elektrisch einstellbaren Photonenkristallen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997033192A1 true WO1997033192A1 (de) | 1997-09-12 |
Family
ID=7788668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/001064 WO1997033192A1 (de) | 1996-03-05 | 1997-03-03 | Optische mehrwege-weiche aus elektrisch einstellbaren photonen-kristallen |
Country Status (10)
Country | Link |
---|---|
US (1) | US6064506A (de) |
EP (1) | EP0885402B1 (de) |
JP (1) | JP3887421B2 (de) |
AT (1) | ATE209791T1 (de) |
CA (1) | CA2248372C (de) |
DE (2) | DE19610656A1 (de) |
ES (1) | ES2169354T3 (de) |
NO (1) | NO319562B1 (de) |
TW (1) | TW331938U (de) |
WO (1) | WO1997033192A1 (de) |
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Also Published As
Publication number | Publication date |
---|---|
ATE209791T1 (de) | 2001-12-15 |
ES2169354T3 (es) | 2002-07-01 |
NO984000D0 (no) | 1998-08-31 |
CA2248372C (en) | 2006-05-16 |
NO984000L (no) | 1998-08-31 |
DE59705549D1 (de) | 2002-01-10 |
US6064506A (en) | 2000-05-16 |
CA2248372A1 (en) | 1997-09-12 |
JP2000506281A (ja) | 2000-05-23 |
EP0885402B1 (de) | 2001-11-28 |
DE19610656A1 (de) | 1997-09-11 |
NO319562B1 (no) | 2005-08-29 |
TW331938U (en) | 1998-05-11 |
JP3887421B2 (ja) | 2007-02-28 |
EP0885402A1 (de) | 1998-12-23 |
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