CN106405729B - The low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage unidirectionally turns round waveguide - Google Patents
The low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage unidirectionally turns round waveguide Download PDFInfo
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- CN106405729B CN106405729B CN201610795826.0A CN201610795826A CN106405729B CN 106405729 B CN106405729 B CN 106405729B CN 201610795826 A CN201610795826 A CN 201610795826A CN 106405729 B CN106405729 B CN 106405729B
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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
- G02B6/125—Bends, branchings or intersections
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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
- G02F1/01—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
- G02F1/09—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 magneto-optical elements, e.g. exhibiting Faraday effect
- G02F1/095—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 magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure
Abstract
It unidirectionally turns round waveguide the invention discloses a kind of low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage, it includes a light input end (1), a light output end (2), a magneto-optic thin film (3), background media (4), two suction wave layers (5,6) and a bias magnetic field；The left end of the unidirectional turn waveguide is light input end (1), its right end is light output end (2)；The magneto-optic thin film (3) is set in background media (4)；The magneto-optic thin film (3) uses magneto-optic memory technique；The magneto-optic thin film (3) and background media (4) are any angle Curved；Bias magnetic field is provided at the magneto-optic thin film (3)；Magneto-optic thin film (3) bending part is annulus shape；It is magnetic surface fast wave at the surface of the magneto-optic memory technique and the background media (4).The present invention is simple, small in size with structure, it is integrated to be convenient for, and low-loss, high-transmission are high-efficient, is suitable for extensive optical path and integrates, is widely applied in the design of various optical waveguides.
Description
Technical field
The present invention relates to a kind of magneto-optic memory technique, surface wave and optical diodes, it is more particularly related to which a kind of nothing is let out
The low fast mould random angle of damage type magneto-optic thin film magnetic surface is leaked unidirectionally to turn round waveguide.
Background technique
Turn waveguide is a kind of optical device as transformation optical path, and consequence is occupied in fiber waveguide device.
Due to the change of direction of beam propagation in optical waveguide, beam Propagation axial displacement and the needs for reducing device volume, in optical waveguide
Bending is required.Waveguide bend can cause the variation of waveguide material optics characteristic distribution in the transmission direction of light, so that turning
Waveguide bend has higher loss.The existing extensive research in turn waveguide field, wherein arc Changing Direction Type turn waveguide is current
The main contents studied in this respect.Even if being such waveguide, present in bending loss and transition loss still
Seriously constrain efficiency of transmission.Furthermore fault of construction etc. also can carry out otherwise loss to waveguide belt.
Optical diode and isolator are a kind of optical devices for only light being allowed to propagate toward a direction, and being applied to prevention need not
The light feedback wanted.The major component of traditional optical diode and isolator is Faraday polarization apparatus, applies Faraday effect (magneto-optic
Effect) it is used as its working principle.Traditional faraday isolator is made of the polarizer, Faraday polarization apparatus and analyzer, this
Device architecture is complicated, is generally applied in the photosystem of free space.For integrated optical circuit, the Integrated Lights device such as optical fiber or waveguide
Part is all unpolarized maintenance system, will lead to the loss of the angle of polarization, thus not applicable faraday isolator.
Summary of the invention
The purpose of the present invention is overcoming shortcoming in the prior art, it is simple and effective to provide a kind of structure, low-loss, light
Efficiency of transmission is high, small in size, unidirectionally turns round waveguide convenient for the integrated low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage.
The purpose of the present invention is achieved by following technical proposals.
The low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage of the present invention unidirectionally turn waveguide include include a light
The light output end 2, one of input terminal 1, one magneto-optic thin film 3,4, two suction wave layers 5,6 of background media and a bias magnetic field；Institute
The left end for stating unidirectional turn waveguide is light input end 1, its right end is light output end 2；The magneto-optic thin film 3 is set to background media
In 4；The magneto-optic thin film 3 uses magneto-optic memory technique；The magneto-optic thin film 3 and background media 4 are any angle Curved；The magnetic
Bias magnetic field is provided at optical thin film 3；3 bending part of magneto-optic thin film is annulus shape；The magneto-optic memory technique and the back
It is magnetic surface fast wave at the surface of scape medium 4.
The interface of the magneto-optic memory technique and the background media 4 constitutes optical waveguide.
The magneto-optic thin film 3 and the background media 4 pass through any angle Curved and light input port 1 and light output end
Mouth 2 connects.
The magneto-optic memory technique film and 4 structure of background media are flat wave-guide structure.
The magneto-optic memory technique is magneto-optic glass or various rare earth doped garnets and rare earth-transition metal alloy
The materials such as film.
The background media 4 is common dielectric material or air.
Any angle Curved is 30 degree of turn shapes, 45 degree of turn shapes, 60 degree of turn shapes, 90 degree of turn shapes
Shape, 120 degree of turn shapes, 135 degree of turn shapes, 150 degree of turn shapes or 180 degree turn shape.
The suction wave layer 5,6 is same or different absorbing material；The absorbing material is polyurethane, graphite, graphite
Alkene, carbon black, carbon fiber epoxy mixture, graphite thermoplastic material mixture, boron fibre epoxy resin mixture, graphite are fine
Tie up epoxy resin mixture, epoxy polysulfide, silicon rubber, urethane, fluoroelastomer, polyether-ether-ketone, polyether sulfone, polyarylsulfone (PAS) or poly- second
Alkene imines.
The suction wave layer 5,6 is 1/4 to 1/2 wavelength at a distance from the flat wave-guide surface respectively；The suction wave layer
5,6 thickness is not less than 1/4 wavelength respectively.
The bias magnetic field is generated by electromagnet or permanent magnet；The unidirectional turn waveguide is by magneto-optic memory technique thin-film waveguide
It constitutes；The operating mode of the unidirectional turn waveguide is TE mode.
It is integrated that present invention is suitably applied to extensive optical paths, is with a wide range of applications.It has compared with prior art
There is following good effect.
1. structure is simple, is easy to implement.
2. it is small in size, convenient for integrated.
3. surface magnetic wave has the immunological characteristic to fault of construction, there is ultra-low loss, superelevation efficiency of transmission, answered extensively
In the design for using various optical waveguides.
Detailed description of the invention
Fig. 1 is the structure chart of the unidirectional turn waveguide of the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage.
In figure, 1 light output end of light input end 2 magneto-optic thin film 3 (magneto-optic memory technique film) background media 4 first inhales wave layer
5 second inhale 6 bias magnetic field ⊙ H of wave layer0(outer) magneto-optic thin film thickness w inhales the distance between wave layer and waveguide w1The inner circle of annulus
Arc radius is the outer arc radius r+w of r annulus
Fig. 2 is the working principle diagram of the unidirectional turn waveguide of the fast mould of magneto-optic thin film magnetic surface.
Fig. 3 is the first embodiment that forward and reverse efficiency of transmission of the unidirectional turn waveguide of magneto-optic thin film changes with frequency of light wave
Curve graph.
Fig. 4 is second of embodiment that forward and reverse efficiency of transmission of the unidirectional turn waveguide of magneto-optic thin film changes with frequency of light wave
Curve graph.
Fig. 5 is the third embodiment that forward and reverse efficiency of transmission of the unidirectional turn waveguide of magneto-optic thin film changes with frequency of light wave
Curve graph.
Fig. 6 is the fourth embodiment song that forward and reverse efficiency of transmission of the unidirectional turn waveguide of magneto-optic thin film change with frequency of light wave
Line chart.
Specific embodiment
As shown in Figure 1, the unidirectional turn waveguide packet of the ultralow fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage of the present invention
Include the light output end 2, one of light input end 1, one magneto-optic thin film 3, background media 4, first inhales wave layer 5, second and inhales wave layer 6
With a bias magnetic field H0, the operating mode of unidirectional turn waveguide is TE mode, and unidirectional turn waveguide is by magneto-optic memory technique membrane wave
Composition is led, magneto-optic thin film 3 and 4 interface of background media are the region that light energy is mainly concentrated, and magneto-optic thin film 3 is set to background Jie
In matter 4, magneto-optic thin film 3 uses magneto-optic memory technique, i.e. magneto-optic memory technique film；Magneto-optic memory technique is magneto-optic glass or various rare earth elements
The materials such as the garnet and rare earth-transition metal alloy film of doping；3 bending part of magneto-optic thin film is annulus shape, annulus
Inner arc radius is r, and outer arc radius is then r+w.Turn angle can be 0 degree to the angle between 180 degree, unidirectional to turn round
The bending angle of waveguide can also use: 0 degree to the angle between 180 degree；Such as: 30 degree, 45 degree, 60 degree, 90 degree, 120 degree,
135 degree, 150 degree and 180 degree.Wherein the unidirectional turn angle of Fig. 1 (a) is 30 degree, the unidirectional turn angle of Fig. 1 (b) is 45 degree, Fig. 1
(c) unidirectional turn angle be 60 degree, Fig. 1 (d), (i) unidirectionally turn angle be 90 degree, Fig. 1 (e) unidirectionally turn angle be 120 degree,
The unidirectional turn angle of Fig. 1 (f) be 135 degree, unidirectionally turn angle is 150 degree and Fig. 1 (h) unidirectional turn angles to Fig. 1 (g) is 180
Degree.The length of bending part depends on turn angle.Magneto-optic memory technique film 3 and background media 4 are any angle Curved, arbitrarily
The curved shape of angle is arc-shaped (arc Changing Direction Type turn waveguide), for example, being 1/8th when turn angle is 45 degree
A annulus；It is a quarter annulus when turn angle is 90 degree；It is half of annulus etc. when turn angle is 180 °,
And so on.Since device architecture of the present invention meets symmetry conservation, that is, its corresponding mirror-image structure similarly can be effective
Work, thus both Fig. 1 (d) and (i) structure mirror symmetry, have same working characteristics.Magneto-optic memory technique and background media 4
It is magnetic surface fast wave at surface, magneto-optic memory technique film 3 and 4 structure of background media are flat wave-guide structure；Magneto-optic memory technique and background
The interface of medium 4 constitutes optical waveguide, and optical waveguide one-way transmission optical signal is used as optical diode or isolator；Magneto-optic memory technique is thin
Film 3 and background media 4 are connect by any angle Curved with light input port 1 and optical output port 2；Background media 4 uses
Common dielectric material or air；It is same or different absorbing material, absorbing material that first suction wave layer 5, second, which inhales wave layer 6,
For polyurethane, graphite, graphene, carbon black, carbon fiber epoxy mixture, graphite thermoplastic material mixture, boron fibre ring
Oxygen resin mixture, epoxy polysulfide, silicon rubber, urethane, fluoroelastomer, polyether-ether-ketone, gathers graphite fibre epoxy resin mixture
Ether sulfone, polyarylsulfone (PAS) or polyethyleneimine；First suction wave layer 5, second inhales wave layer 6 and is at a distance from flat wave-guide surface respectively
1/4 to 1/2 wavelength, first, which inhales wave layer 5, second, inhales the thickness of wave layer 6 respectively not less than 1/4 wavelength.At magneto-optic memory technique film 3
It is provided with bias magnetic field ⊙ H0(outer), bias magnetic field are generated by electromagnet or permanent magnet.Bias magnetic field direction is vertical paper
When outward or inwards, the port 1 of unidirectional turn waveguide is light input end, and port 2 is light output end.
Surface magnetic wave caused by magneto-optic memory technique-medium interface is a kind of similar to metallic surface plasma excimer (SPP)
The phenomenon that.For magneto-optic memory technique under the action of biasing magnetostatic field, magnetic conductivity is tensor form, meanwhile, in certain light wave segment limit
Interior, effective refractive index is negative value.Thus, the surface of magneto-optic memory technique can generate a kind of guided wave, and the property with one way propagation
Energy, referred to as surface magnetic wave (surface magnetopolaron wave, SMP).
The present invention is that a kind of low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage unidirectionally turns round waveguide.The device is
Based on nonreciprocity possessed by magneto-optic memory technique, studied in conjunction with the characteristic that magneto-optic memory technique-medium interface can generate surface wave
The unidirectional turn waveguide with excellent properties out.Magneto-optic memory technique film is placed in medium (air) background and neutralizes two suction wave layers
Combination, the bend in one direction that light is carried out using the magnetic surface fast wave that magneto-optic memory technique-medium interface generates are transmitted, and are inhaled wave layer and are absorbed nothing
With wave, optical path interference is eliminated.
The technical scheme is that being had based on light nonreciprocity possessed by magneto-optic memory technique and magneto-optic memory technique-medium interface
Have it is unique can conduction surfaces wave property, realize the design of unidirectional turn waveguide.The basic principle of the technical solution is as follows:
Magneto-optic memory technique is a kind of material with magnetic anisotropy, and the magnetic couple inside magneto-optic memory technique is caused by additional magnetostatic field
Extremely son arranges at same direction, and then generates dipole moment.With optical signal strong interaction will occur for dipole moment, in turn
Generate the nonreciprocity transmission of light.It is the outside bias magnetic field H of vertical paper in direction0Under the action of, the magnetic conductance of magneto-optic memory technique
Rate tensor are as follows:
The matrix element of permeability tensor is provided by following equation group:
Wherein, μ0For the magnetic conductivity in vacuum, γ is gyromagnetic ratio, H0For externally-applied magnetic field, MsFor saturation magnetization, ω is
Working frequency, α are loss factor.If change bias magnetic field direction be vertical paper inwards, H0And MsBy reindexing.
Surface magnetic wave caused by magneto-optic memory technique-medium interface then can permeability tensor according to magneto-optic memory technique and Mike
This Wei solving equations obtains.Following form should be had by meeting surface wave (for TE wave) electric and magnetic fields existing for interface:
Wherein i=1 represents magneto-optic memory technique region, and i=2 represents areas of dielectric.Substitute into maxwell equation group:
Further according to constitutive relationship and boundary condition, the wave vector k about surface magnetic wave can be obtainedzTranscendental equation:
Wherein,For the Effective permeability of magneto-optic memory technique.This transcendental equation can be asked by numerical solution
Solution, finally obtains kzValue.It can also find out from equation, since equation includes μκkzItem, so, surface magnetic wave have it is nonreciprocal
Property (one way propagation).
As it can be seen that biasing magnetostatic field is added at magneto-optic memory technique film 3, and use common dielectric material or air as background
Material, then effective one-way waveguide will be constituted.And due to the characteristic of surface magnetic wave (SMP), turn waveguide theoretically by
Loss caused by warp architecture is very low.As shown in Fig. 2, being used as magnetically anisotropic substance, back using yttrium iron garnet (YIG)
Scape medium 4 is air (n0=1), bias magnetic field size is 900Oe, and magneto-optic thin film thickness w=5mm, first inhales wave layer 5 and second
Inhaling wave layer 6 with the distance between waveguide is respectively w1=5mm, the inner arc radius r=30mm of annulus, the working frequency of device
F by magneto-optic memory technique and medium permittivity ε1, ε2With magnetic conductivity [μ1], μ2It is determined, working frequency f=6GHz, YIG material
Expect loss factor α=3 × 10-4, turn angle is 90 degree.Bias magnetic field direction is that vertical paper is outside, when light is inputted from port 1
When, the surface magnetic wave of unidirectional positive transmission is generated in magneto-optic memory technique-medium interface, is finally exported from port 2；When light is from port 2
When input, due to the nonreciprocity of surface magnetic wave cause light wave can not inside device reverse transfer, thus can not be defeated from port 1
Out.Light energy is all blocked at port 2.It can be seen that, light wave can be limited in magneto-optic thin film turn well simultaneously
In waveguide, loss value is very low.
Unidirectionally turn waveguide uses magneto-optic to the low fast mould random angle of damage type magneto-optic thin film magnetic surface of the No leakage of device of the present invention
Material is set in common dielectric material, structure size and parameter, such as the inner arc radius r and thickness of dielectric layers w of annulus
It can neatly be selected according to operation wavelength and actual demand.Change the size influence not big to device performance.It ties below
It closes attached drawing and provides four embodiments, magnetically anisotropic substance, bias magnetic field are used as using yttrium iron garnet (YIG) in embodiment
Size is 900Oe, and bias magnetic field direction is that vertical paper is outside, and background media 4 is air (n0=1), magneto-optic thin film thickness w=
5mm, first inhales wave layer 5 and second to inhale wave layer 6 with the distance between waveguide be respectively w1=5mm, the inner arc radius r of annulus
=60mm, YIG material loss factor alpha=3 × 10-4, the working frequency f of device by magneto-optic memory technique and medium permittivity ε1,
ε2With magnetic conductivity [μ1], μ2It is determined.
Embodiment 1
Referring to Fig.1 (b), unidirectional turn waveguide is made of magneto-optic thin film waveguide, and turn angle is 45 °.In working frequency range,
The light wave inputted from port 1 will generate surface magnetic wave in device inside, and then be exported by device from port 2；And it is defeated from port 2
The light wave entered will be stopped by device, can not export from port 1.Referring to Fig. 3, the operating frequency range of unidirectional turn waveguide is
5.11GHz~7.38GHz.In operating frequency range, consider that material loss, unidirectional turn waveguide are up to forward and reverse transmission
Isolation is 28.446dB, and forward direction transmission insertion loss is 0.0664dB.
Embodiment 2
(d) and (i), unidirectional turn waveguide are made of magneto-optic thin film waveguide referring to Fig.1, and turn angle is 90 °.In work frequency
In section, the light wave inputted from port 1 will generate surface magnetic wave in device inside, and then be exported by device from port 2；And from end
The light waves of 2 input of mouth will be stopped by device, can not export from port 1.Referring to Fig. 4, the working frequency model of unidirectional turn waveguide
Enclosing is 5.00GHz~7.40GHz.In operating frequency range, consider that material loss, unidirectional turn waveguide are up to forward and reverse
Transmission isolation is 31.993dB, and forward direction transmission insertion loss is 0.0163dB.
Embodiment 3
Referring to Fig.1 (f), unidirectional turn waveguide is made of magneto-optic thin film waveguide, and turn angle is 135 °.In working frequency range
Interior, the light wave inputted from port 1 will generate surface magnetic wave in device inside, and then be exported by device from port 2；And from port
The light wave of 2 inputs will be stopped by device, can not export from port 1.Referring to Fig. 5, the operating frequency range of unidirectional turn waveguide
It is 5.06GHz~7.40GHz.In operating frequency range, consider that material loss, unidirectional turn waveguide are up to forward and reverse biography
Defeated isolation is 27.4473dB, and forward direction transmission insertion loss is 0.0490dB.
Embodiment 4
Referring to Fig.1 (h), unidirectional turn waveguide is made of magneto-optic thin film waveguide, and turn angle is 180 °.In working frequency range
Interior, the light wave inputted from port 1 will generate surface magnetic wave in device inside, and then be exported by device from port 2；And from port
The light wave of 2 inputs will be stopped by device, can not export from port 1.Referring to Fig. 6, the operating frequency range of unidirectional turn waveguide
It is 5.00GHz~7.39GHz.In operating frequency range, consider that material loss, unidirectional turn waveguide are up to forward and reverse biography
Defeated isolation is 35.753dB, and forward direction transmission insertion loss is 0.0383dB.
By the transmission of the unidirectional turn waveguide of the fast mould of magneto-optic thin film magnetic surface of Fig. 3, Fig. 4, Fig. 5 and Fig. 6 difference turn angle
The light frequency range of the fast mould of available the transmitted magnetic surface of magneto-optic thin film turn waveguide of efficiency curve diagram, i.e., unidirectional turn waveguide
Operating frequency range.As can be known from the results, unidirectionally turn waveguide is the low fast mould random angle of damage type magneto-optic thin film magnetic surface of the present invention
It can effectively work.
Present invention described above has improvements in specific embodiment and application range, is not construed as to this hair
Bright limitation.
Claims (14)
- The waveguide 1. a kind of low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage unidirectionally turns round, which is characterized in that it includes One light input end (1), a light output end (2), a magneto-optic thin film (3), two layers of background media (4), two suction wave layers (5, And a bias magnetic field 6)；The left end of the unidirectional turn waveguide is light input end (1), and right end is light output end (2)；It is described Magneto-optic thin film is provided with bias magnetic field at (3)；The magneto-optic thin film (3) is set in background media (4) interface, the magneto-optic thin film (3) magneto-optic memory technique is used；The interface of the magneto-optic thin film (3) and the background media (4) generates magnetic surface fast wave；The magneto-optic Film (3) and the background media (4) are any angle Curved；Magneto-optic thin film (3) bending part is annulus shape.
- The waveguide 2. the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage described in accordance with the claim 1 unidirectionally turns round, It is characterized in that, the interface of the magneto-optic thin film (3) and the background media (4) constitutes optical waveguide.
- The waveguide 3. the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage described in accordance with the claim 1 unidirectionally turns round, It is characterized in that, the magneto-optic thin film (3) and the background media (4) pass through any angle Curved and light input end (1) and light Output end (2) connection.
- The waveguide 4. the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage described in accordance with the claim 1 unidirectionally turns round, It is characterized in that, the magneto-optic thin film (3) and the background media (4) structure are flat wave-guide structure.
- The waveguide 5. the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage described in accordance with the claim 1 unidirectionally turns round, It is characterized in that, the magneto-optic memory technique is magneto-optic glass, rare earth doped garnet or rare earth-transition metal alloy film Material.
- The waveguide 6. the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage described in accordance with the claim 1 unidirectionally turns round, It is characterized in that, the background media (4) is common dielectric material or air.
- The waveguide 7. the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage described in accordance with the claim 1 unidirectionally turns round, It is characterized in that, any angle Curved is 30 degree of turn shapes, 45 degree of turn shapes, 60 degree of turn shapes, 90 degree of turns Shape, 120 degree of turn shapes, 135 degree of turn shapes, 150 degree of turn shapes or 180 degree turn shape.
- The waveguide 8. the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage described in accordance with the claim 1 unidirectionally turns round, Be characterized in that: the suction wave layer is same or different absorbing material.
- The waveguide 9. the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage described in accordance with the claim 1 unidirectionally turns round, Be characterized in that: the absorbing material is polyurethane, graphite, graphene, carbon black, carbon fiber epoxy mixture, graphite thermoplastic Property material mixture, boron fibre epoxy resin mixture, graphite fibre epoxy resin mixture, epoxy polysulfide, silicon rubber, urine Alkane, fluoroelastomer, polyether-ether-ketone, polyether sulfone, polyarylsulfone (PAS) or polyethyleneimine.
- The waveguide 10. the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage described in accordance with the claim 1 unidirectionally turns round, Be characterized in that: described two suction wave layers (5,6) are respectively 1/4 to 1/2 wavelength with the distance between waveguide.
- The waveguide 11. the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage described in accordance with the claim 1 unidirectionally turns round, Be characterized in that: described two thickness for inhaling wave layer (5,6) are not less than 1/4 wavelength respectively.
- The waveguide 12. the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage described in accordance with the claim 1 unidirectionally turns round, Be characterized in that: the bias magnetic field is generated by electromagnet or permanent magnet.
- The waveguide 13. the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage described in accordance with the claim 1 unidirectionally turns round, Be characterized in that: the unidirectional turn waveguide is made of magneto-optic thin film waveguide.
- The waveguide 14. the low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage described in accordance with the claim 1 unidirectionally turns round, Be characterized in that: the operating mode of the unidirectional turn waveguide is TE mode.
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| CN201610795826.0A CN106405729B (en) | 2016-08-31 | 2016-08-31 | The low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage unidirectionally turns round waveguide |
| PCT/CN2017/099812 WO2018041175A1 (en) | 2016-08-31 | 2017-08-31 | Magnetic surface fast-mode arbitrary-angle unidirectional bent waveguide with leakless low-loss magneto-optical thin film |
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| CN106291812B (en) * | 2016-08-31 | 2019-04-30 | 欧阳征标 | The low fast mould any direction of damage magneto-optic thin film magnetic surface controllably unidirectionally turns round waveguide |
| CN106405729B (en) * | 2016-08-31 | 2019-04-23 | 欧阳征标 | The low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage unidirectionally turns round waveguide |
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| AU2003303601A1 (en) * | 2003-01-02 | 2004-07-29 | Massachusetts Institute Of Technology | Magnetically active semiconductor waveguides for optoelectronic integration |
| WO2009081487A1 (en) * | 2007-12-25 | 2009-07-02 | Shibaura Institute Of Technology | Optical nonreciprocal device and method for manufacturing optical nonreciprocal device |
| CN101672987B (en) * | 2008-09-12 | 2013-01-02 | 华为技术有限公司 | Optical isolator, optical add/drop multiplexer and optical combiner |
| CN106154416B (en) * | 2016-08-31 | 2021-02-19 | 深圳大学 | Controllable one-way arbitrary turning waveguide of no-leakage low-loss magneto-optical film magnetic surface fast mode |
| CN106405729B (en) * | 2016-08-31 | 2019-04-23 | 欧阳征标 | The low fast mould random angle of damage type magneto-optic thin film magnetic surface of No leakage unidirectionally turns round waveguide |
| CN106249445A (en) * | 2016-08-31 | 2016-12-21 | 欧阳征标 | The low damage type magneto-optic thin film magnetic surface unidirectional waveguide of turning round of fast mould random angle |
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| EP1102285A3 (en) * | 1999-10-27 | 2006-03-22 | Minebea Co., Ltd. | Magneto-optical member |
| CN203012182U (en) * | 2012-12-25 | 2013-06-19 | 深圳大学 | Signal add-drop multiplexing module and signal add-drop multiplexer |
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