CN102707462A - 4*4 binary generator based on magneto-optic photonic crystal - Google Patents
4*4 binary generator based on magneto-optic photonic crystal Download PDFInfo
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- CN102707462A CN102707462A CN2012101928193A CN201210192819A CN102707462A CN 102707462 A CN102707462 A CN 102707462A CN 2012101928193 A CN2012101928193 A CN 2012101928193A CN 201210192819 A CN201210192819 A CN 201210192819A CN 102707462 A CN102707462 A CN 102707462A
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Abstract
The invention discloses a 4*4 binary generator based on a magneto-optic photonic crystal. The 4*4 binary generator is provided with a magneto-optic photonic crystal dielectric cylinder structure for periodically arraying tetragonal lattices; the magneto-optic photonic crystal dielectric cylinder is divided into 5*5 areas, +z or -z magnetic fields along dielectric cylinders are applied to different areas, light is dynamically modulated by regulating the magnetic fields of different areas so that a binary generation function is realized. According to the 4*4 binary generator based on the magneto-optic photonic crystal, because the magneto-optic photonic crystal is provided with a TM photonic band gap, different external magnetic fields are introduced into different half-planes of the magneto-optic photonic crystal, and therefore, a magneto-optic photonic crystal waveguide can be formed; the magneto-optic photonic crystal has a one-way transmission characteristic because of the nonreciprocity of magnetic conductivity tensors and can perfectly transmit; and a magneto-optic photonic crystal bend waveguide, a magneto-optic photonic crystal beam splitter, and the like which can be established on the basis of the magneto-optic photonic crystal waveguide also have perfect transmission characteristics.
Description
Technical field
The present invention relates to the semiconductor photoelectronic device technical field, relate in particular to a kind of 4 * 4 binary generators based on magneto-opto photonic crystal.
Background technology
In the past several years, artificial periodic structure, for example photonic crystal has obtained to pay close attention to widely.In photonic crystal, because the specific inductive capacity period profile can realize the dynamic control to light field.Thereby photonic crystal has obtained at aspects such as photon crystal laser, photon crystal wave-guide, photon crystal filter, photonic crystal detectors to use widely.In research before, the material of photonic crystal mainly focuses on common dielectric material.But, do not obtain enough concerns based on the magneto-opto photonic crystal of magnetic material, mainly be because research before mainly concentrates on optical wavelength range, and in optical wavelength range, the magnetic permeability of magnetic material is generally 1.But in microwave region, the specific inductive capacity of magnetic material can change with change of frequency and externally-applied magnetic field, has the magneto-opto photonic crystal of photon band gap thereby produce, and then has excited some novel phenomenons.
At present, magneto-opto photonic crystal has obtained extensive studies.Haldane and Raghu experiment and the eigenmodes that has proved magneto-opto photonic crystal in theory well local and have good one way propagation characteristic on the surface of magneto-opto photonic crystal.In magneto-opto photonic crystal, magnetic permeability can change along with the variation of externally-applied magnetic field, and the non-diagonal components of magnetic permeability tensor has nonzero component, make being with of photonic crystal present nonreciprocity, thereby magneto-opto photonic crystal can be realized one way propagation.In addition,, can regulate externally-applied magnetic field and change magnetic permeability, and then change the direction of propagation of light owing to the size and Orientation of magnetic permeability tensor along with externally-applied magnetic field changes.
Based on magneto-opto photonic crystal; This research has designed the magneto-opto photonic crystal of one 4 * 4 16 output ports in the world first; Through regulating the variation of magneto-opto photonic crystal regional magnetic field; Can arbitrarily realize the high permeability output of arbitrary port, utilize the corresponding relation between output port and the tetrad, realize the function of scale-of-two generator.This research can be generalized to 8 binary generators, and even the generator of any N bit.
Summary of the invention
The technical matters that (one) will solve
In view of this, fundamental purpose of the present invention is to provide 4 * 4 binary generators based on magneto-opto photonic crystal, utilize " in magneto-opto photonic crystal; magnetic permeability can change along with the variation of externally-applied magnetic field; and the non-diagonal components of magnetic permeability tensor has nonzero component, make being with of photonic crystal present nonreciprocity, thereby magneto-opto photonic crystal can be realized one way propagation " this characteristic; And " the dynamic adjustments externally-applied magnetic field changes magnetic permeability; and then the dynamic modulation of change optical propagation direction ", and utilize different light field output ports and binary corresponding relation, designed the magneto-opto photonic crystal binary generator.
(2) technical scheme
For achieving the above object; The invention provides a kind of 4 * 4 binary generators based on magneto-opto photonic crystal, this 4 * 4 binary generator has the magneto-opto photonic crystal medium post of the tetragonal lattice of one-period property arrangement, and this magneto-opto photonic crystal medium post is divided into 5 * 5 zone; Apply in different zones along the medium post+z perhaps-z magnetic field; Through regulating the magnetic field of zones of different, light is carried out dynamic modulation, realize the function that scale-of-two produces.
In the such scheme, the material that said magneto-opto photonic crystal medium post adopts is a magneto-optic memory technique, and said magneto-optic memory technique is yttrium iron garnet (YIG).
In the such scheme, said magneto-opto photonic crystal medium post has the TM mode photonic band gap.Through apply in the different zone of said magneto-opto photonic crystal medium post along the medium post+z perhaps-z magnetic field, realize magneto-opto photonic crystal waveguide and beam splitter.
In the such scheme, said magneto-opto photonic crystal medium post has the characteristic of one-way transmission at operating wavelength range.
In the such scheme, said magneto-opto photonic crystal medium post is converted into a series of straight wave guide and bending waveguide under certain magnetic field, and this a series of straight wave guide integrates with the bending waveguide and constitutes this 4 * 4 binary generator.
In the such scheme, said magneto-opto photonic crystal 4 * 4 binary generators can further be expanded to 4 * N binary generator through the expansion of magneto-opto photonic crystal, and wherein N is the natural number greater than 4.
(3) beneficial effect
Can find out that from technique scheme the present invention has following beneficial effect:
1, this 4 * 4 binary generators provided by the invention based on magneto-opto photonic crystal; Because " in magneto-opto photonic crystal; magnetic permeability can change along with the variation of externally-applied magnetic field, and the non-diagonal components of magnetic permeability tensor has nonzero component, makes being with of photonic crystal present nonreciprocity; thereby magneto-opto photonic crystal can be realized one way propagation ", this characteristic is the physical basis that provides based on 4 * 4 binary generators of magneto-opto photonic crystal.
2, this 4 * 4 binary generators based on magneto-opto photonic crystal provided by the invention owing to have the TM photon band gap at magneto-opto photonic crystal, are introduced different externally-applied magnetic fields at the different half-planes of magneto-opto photonic crystal, can form the magneto-opto photonic crystal waveguide.Since the nonreciprocity of magnetic permeability tensor, thereby can have the one way propagation characteristic by magneto-opto photonic crystal, and can perfect transmit.Based on the magneto-opto photonic crystal waveguide, the magneto-opto photonic crystal bending waveguide that can make up, magneto-opto photonic crystal beam splitter etc. also have the characteristic of perfect transmission.
3, this 4 * 4 binary generators based on magneto-opto photonic crystal provided by the invention have the operating wavelength range than broad, can select as required.
4, utilize the present invention, can design 4 * 4 binary generators, can produce one 4 bit.Simultaneously, can further be extended to 4 * N binary generator as required, produce N position scale-of-two.
Description of drawings
Fig. 1 (a) is externally-applied magnetic field H
Ex=0 o'clock tetragonal lattice YIG magneto-opto photonic crystal, Fig. 1 (b) are the externally-applied magnetic field H that adopts the FDFD method to calculate
ExThe band structure of=0 o'clock tetragonal lattice YIG magneto-opto photonic crystal, Fig. 1 (c) externally-applied magnetic field H
ExTetragonal lattice YIG magneto-opto photonic crystal during=1600G, the externally-applied magnetic field H that Fig. 1 (d) adopts the FDFD method to calculate
ExThe band structure of the tetragonal lattice YIG magneto-opto photonic crystal during=1600G.
Fig. 2 (a) is a tetragonal lattice magneto-opto photonic crystal waveguide synoptic diagram provided by the invention; Fig. 2 (b) for calculate the magneto-opto photonic crystal waveguide can with the time the ultra cellular that adopts; Fig. 2 (c) is H for externally-applied magnetic field
Ex, adopt the FDFD method to calculate being with of YIG magneto-opto photonic crystal waveguide at=0 o'clock; Fig. 2 (d) is the field distribution of the conduction mode of 0.546 (2 π c/a) for normalized frequency; Fig. 2 (e) is the field distribution of the conduction mode of 0.629 (2 π c/a) for normalized frequency.
Fig. 3 (a) is the transfer efficiency of magneto-opto photonic crystal waveguide, and Fig. 3 (b) normalized frequency is the stationary field of light in magneto-opto photonic crystal of 0.546 (2 π c/a), and Fig. 3 (c) normalized frequency is the stationary field of light in magneto-opto photonic crystal of 0.629 (2 π c/a).
Fig. 4 is that the stationary field of 180 ° of beam splitters of magneto-opto photonic crystal and 90 ° of bending waveguides distributes and externally-applied magnetic field distributes, and wherein blue region applies+z magnetic field, and white portion applies-z magnetic field.Wherein Fig. 4 (a) is the stationary field of light in 180 ° of beam splitters of magneto-opto photonic crystal of 0.629 (2 π c/a) for normalized frequency.Fig. 4 (b) is the stationary fields of light in magneto-opto photonic crystal makes progress 90 ° of bending waveguides of 0.629 (2 π c/a) for normalized frequency.Fig. 4 (c) is the stationary field of light in the downward 90 ° of bending waveguides of magneto-opto photonic crystal of 0.629 (2 π c/a) for normalized frequency.Fig. 4 (d) is that the externally-applied magnetic field of 180 ° of beam splitters of magneto-opto photonic crystal distributes.Fig. 4 (e) distributes for the externally-applied magnetic field of upwards 90 ° of bending waveguides.Fig. 4 (f) is that the externally-applied magnetic field of downward 90 ° of bending waveguides distributes.
Fig. 5 is the synoptic diagram based on 4 * 4 binary generators of magneto-opto photonic crystal after the fine setting provided by the invention, the output of magnetic control photonic crystal binary generator 16 ports.
Fig. 6 distributes for magnetic control photonic crystal binary generator adds dynamic magnetic field.The magnetic field of gray area is+the z direction that the magnetic field of white space is-the z direction.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, to further explain of the present invention.
This 4 * 4 binary generators provided by the invention based on magneto-opto photonic crystal; Magneto-opto photonic crystal medium post with a tetragonal lattice; This magneto-opto photonic crystal medium post is divided into 5 * 5 zone, apply in different zones along the medium post+z perhaps-z magnetic field, through regulating the magnetic field of zones of different; Light is carried out dynamic modulation, realize the function that scale-of-two produces.
Wherein, the material that said magneto-opto photonic crystal medium post adopts is a magneto-optic memory technique, like yttrium iron garnet (YIG) etc.Said magneto-opto photonic crystal medium post has the TM mode photonic band gap.Through apply in the different zone of said magneto-opto photonic crystal medium post along the medium post+z perhaps-z magnetic field, realize magneto-opto photonic crystal waveguide and beam splitter.Said magneto-opto photonic crystal medium post has the characteristic of one-way transmission at operating wavelength range.
Said magneto-opto photonic crystal medium post is converted into a series of straight wave guide and bending waveguide under certain magnetic field, this a series of straight wave guide integrates with the bending waveguide and constitutes this 4 * 4 binary generator.
Said magneto-opto photonic crystal 4 * 4 binary generators can further be expanded to 4 * N binary generator through the expansion of magneto-opto photonic crystal, and wherein N is the natural number greater than 4.
Embodiment one
Fig. 2 (a) is a tetragonal lattice magneto-opto photonic crystal waveguide synoptic diagram provided by the invention, and the generation of waveguide is to realize through applying different externally-applied magnetic fields at last lower half-plane.Adopting material is yttrium iron garnet (YIG), and concrete parameter is following:
Dielectric coefficient ε=15,
The magnetic permeability of YIG can be expressed as follows:
μ wherein
0Be permittivity of vacuum, κ is the magnetic parameter that circles round that is caused by externally-applied magnetic field.As externally-applied magnetic field H
ExDuring=1600G, near the specific inductive capacity tensor parameter of YIG material 4.28GHz is μ=14 and κ=12.4.
Periodical media column radius r=0.11a (a is a grating constant).
Fig. 2 (b) for calculate the magneto-opto photonic crystal waveguide can with the time the ultra cellular that adopts; Fig. 2 (c) is H for externally-applied magnetic field
Ex, adopt the FDFD method to calculate being with of YIG magneto-opto photonic crystal waveguide at=0 o'clock; Fig. 2 (d) is the field distribution of the conduction mode of 0.546 (2 π c/a) for normalized frequency; Fig. 2 (e) is the field distribution of the conduction mode of 0.629 (2 π c/a) for normalized frequency.
Fig. 3 (a) is the transfer efficiency of magneto-opto photonic crystal waveguide, and Fig. 3 (b) normalized frequency is the stationary field of light in magneto-opto photonic crystal of 0.546 (2 π c/a), and Fig. 3 (c) normalized frequency is the stationary field of light in magneto-opto photonic crystal of 0.629 (2 π c/a).
Fig. 4 is that the stationary field of 180 ° of beam splitters of magneto-opto photonic crystal and 90 ° of bending waveguides distributes and externally-applied magnetic field distributes, and wherein blue region applies+z magnetic field, and white portion applies-z magnetic field.Wherein Fig. 4 (a) is the stationary field of light in 180 ° of beam splitters of magneto-opto photonic crystal of 0.629 (2 π c/a) for normalized frequency.Fig. 4 (b) is the stationary fields of light in magneto-opto photonic crystal makes progress 90 ° of bending waveguides of 0.629 (2 π c/a) for normalized frequency.Fig. 4 (c) is the stationary field of light in the downward 90 ° of bending waveguides of magneto-opto photonic crystal of 0.629 (2 π c/a) for normalized frequency.Fig. 4 (d) is that the externally-applied magnetic field of 180 ° of beam splitters of magneto-opto photonic crystal distributes.Fig. 4 (e) distributes for the externally-applied magnetic field of upwards 90 ° of bending waveguides.Fig. 4 (f) is that the externally-applied magnetic field of downward 90 ° of bending waveguides distributes.
Embodiment two
Fig. 5 is the synoptic diagram based on 4 * 4 binary generators of magneto-opto photonic crystal after the fine setting provided by the invention.
Adopting material is yttrium iron garnet (YIG), and concrete parameter is following:
Dielectric coefficient ε=15,
The magnetic permeability of YIG can be expressed as follows:
μ wherein
0Be permittivity of vacuum, κ is the magnetic parameter that circles round that is caused by externally-applied magnetic field.As externally-applied magnetic field H
ExDuring=1600G, near the specific inductive capacity tensor parameter of YIG material 4.28GHz is μ=14 and κ=12.4.
Periodical media column radius r=0.11a (a is a grating constant).
Fig. 5 is dynamic adjustment externally-applied magnetic field, realizes that normalized frequency is that the light of 0.629 (2 π c/a) is in the output of magnetic control photonic crystal binary generator at any 16 ports.
Fig. 6 distributes for magnetic control photonic crystal binary generator adds dynamic magnetic field.The magnetic field of gray area is+the z direction that the magnetic field of white space is-the z direction.
Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; Be not limited to the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. 4 * 4 binary generators based on magneto-opto photonic crystal; It is characterized in that this 4 * 4 binary generator has the arrange magneto-opto photonic crystal medium rod structure of tetragonal lattice of one-period, this magneto-opto photonic crystal medium rod structure is divided into 5 * 5 zone; Apply in different zones along the medium post+z perhaps-z magnetic field; Through regulating the magnetic field of zones of different, light is carried out dynamic modulation, realize the function that scale-of-two produces.
2. 4 * 4 binary generators based on magneto-opto photonic crystal according to claim 1 is characterized in that, the material that said magneto-opto photonic crystal medium rod structure adopts is a magneto-optic memory technique.
3. 4 * 4 binary generators based on magneto-opto photonic crystal according to claim 2 is characterized in that, said magneto-optic memory technique is yttrium iron garnet (YIG).
4. 4 * 4 binary generators based on magneto-opto photonic crystal according to claim 1 is characterized in that, said magneto-opto photonic crystal medium rod structure has the TM mode photonic band gap.
5. 4 * 4 binary generators based on magneto-opto photonic crystal according to claim 1; It is characterized in that; Through apply in the different zone of said magneto-opto photonic crystal medium rod structure along the medium post+z perhaps-z magnetic field, realize magneto-opto photonic crystal waveguide and beam splitter.
6. 4 * 4 binary generators based on magneto-opto photonic crystal according to claim 1 is characterized in that said magneto-opto photonic crystal medium rod structure has the characteristic of one-way transmission at operating wavelength range.
7. 4 * 4 binary generators based on magneto-opto photonic crystal according to claim 1; It is characterized in that; Said magneto-opto photonic crystal medium rod structure is converted into a series of straight wave guide and bending waveguide under certain magnetic field, this a series of straight wave guide integrates with the bending waveguide and constitutes this 4 * 4 binary generator.
8. 4 * 4 binary generators based on magneto-opto photonic crystal according to claim 1; It is characterized in that; Said magneto-opto photonic crystal 4 * 4 binary generators can further be expanded to 4 * N binary generator through the expansion of magneto-opto photonic crystal, and wherein N is the natural number greater than 4.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103744199A (en) * | 2014-01-20 | 2014-04-23 | 苏州大学 | Two-dimensional photonic crystal beam splitter and beam splitting method for same |
| CN104101948A (en) * | 2014-07-28 | 2014-10-15 | 欧阳征标 | Photonic crystal waveguide based superefficient compact cross circulator |
| CN109478603A (en) * | 2016-03-15 | 2019-03-15 | 萨瑟兰德·库克·埃尔伍德 | Magneto-optic sub-encoders |
| CN113341500A (en) * | 2021-04-06 | 2021-09-03 | 江苏大学 | 3X 3 optical waveguide 8 channel splitter with adjustable output |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101479649A (en) * | 2006-03-17 | 2009-07-08 | St协作有限公司 | Magneto-opto photonic crystal multilayer structure having enhanced faraday rotation with visible light |
| GB2466112A (en) * | 2008-12-09 | 2010-06-16 | Searete Llc | Magnetic control of surface states e.g. plasmons |
| CN102262267A (en) * | 2011-05-21 | 2011-11-30 | 浙江工业大学 | High-efficiency channel drop filter based on photonic crystal non-commutative unidirectional waveguide |
-
2012
- 2012-06-12 CN CN2012101928193A patent/CN102707462A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101479649A (en) * | 2006-03-17 | 2009-07-08 | St协作有限公司 | Magneto-opto photonic crystal multilayer structure having enhanced faraday rotation with visible light |
| GB2466112A (en) * | 2008-12-09 | 2010-06-16 | Searete Llc | Magnetic control of surface states e.g. plasmons |
| CN102262267A (en) * | 2011-05-21 | 2011-11-30 | 浙江工业大学 | High-efficiency channel drop filter based on photonic crystal non-commutative unidirectional waveguide |
Non-Patent Citations (1)
| Title |
|---|
| 张浩，赵建林，张晓娟等: "二维磁性光子晶体及其模场分析", 《物理学报》, vol. 56, no. 6, 30 June 2007 (2007-06-30), pages 3546 - 3552 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103744199A (en) * | 2014-01-20 | 2014-04-23 | 苏州大学 | Two-dimensional photonic crystal beam splitter and beam splitting method for same |
| CN104101948A (en) * | 2014-07-28 | 2014-10-15 | 欧阳征标 | Photonic crystal waveguide based superefficient compact cross circulator |
| CN109478603A (en) * | 2016-03-15 | 2019-03-15 | 萨瑟兰德·库克·埃尔伍德 | Magneto-optic sub-encoders |
| CN109478603B (en) * | 2016-03-15 | 2021-06-18 | 萨瑟兰德·库克·埃尔伍德 | Magnetic photon encoder |
| CN113341500A (en) * | 2021-04-06 | 2021-09-03 | 江苏大学 | 3X 3 optical waveguide 8 channel splitter with adjustable output |
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Application publication date: 20121003 |