CN103123421A - One-dimensional magnetic photonic crystal for achieving broadband optical isolation - Google Patents
One-dimensional magnetic photonic crystal for achieving broadband optical isolation Download PDFInfo
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- CN103123421A CN103123421A CN2013100658420A CN201310065842A CN103123421A CN 103123421 A CN103123421 A CN 103123421A CN 2013100658420 A CN2013100658420 A CN 2013100658420A CN 201310065842 A CN201310065842 A CN 201310065842A CN 103123421 A CN103123421 A CN 103123421A
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 53
- 239000004038 photonic crystal Substances 0.000 title claims abstract description 31
- 238000002955 isolation Methods 0.000 title claims abstract description 22
- 230000003287 optical effect Effects 0.000 title claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002223 garnet Substances 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 8
- 239000010703 silicon Substances 0.000 claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- XNVGXJNBEPYSHM-UHFFFAOYSA-N [Fe].[Y].[Ce] Chemical compound [Fe].[Y].[Ce] XNVGXJNBEPYSHM-UHFFFAOYSA-N 0.000 claims description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 3
- 229910052684 Cerium Inorganic materials 0.000 abstract 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical group [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 abstract 1
- MTRJKZUDDJZTLA-UHFFFAOYSA-N iron yttrium Chemical compound [Fe].[Y] MTRJKZUDDJZTLA-UHFFFAOYSA-N 0.000 abstract 1
- 229910052814 silicon oxide Inorganic materials 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000002950 deficient Effects 0.000 description 4
- 238000001755 magnetron sputter deposition Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Abstract
Provided is a one-dimensional magnetic photonic crystal for achieving broadband optical isolation. The structural formula of the basic component S0 of the one-dimensional magnetic photonic crystal is [H/L] 2/M/ [L/H] 5/M/ [H/L] 2/M/ [L/H] /2/M/ [H/L] 5/M/ [L/H] 2, wherein H is silicon, L is silicon oxide, and M is cerium mixed yttrium iron garnet. A first composite structure S1 of the one-dimensional magnetic photonic crystal meets the following equation: S1=S0/M/S0, and a second composite structure S2 of the one-dimensional magnetic photonic crystal meets the following equation: S2=S0/M/S0/M/S0. According to the one-dimensional magnetic photonic crystal, the composite structures reduce the total layer number of film layers, reduce preparation difficulty and improve work stability of an optical isolator.
Description
Technical field
The present invention relates to a kind of broadband light isolated body, specifically a kind of One-Dimension Magnetic photonic crystal be used to realizing the broadband light isolator.
Background technology
Optoisolator is a kind of nonreciprocal passive device that allows the forward transmission light to pass through, and its Main Function is to prevent that reverse transfer light from causing harmful effect to light source, improves the stability of light path system transmission.
Existing optoisolator is 45 by optical axis direction
oThe a pair of polarizer at angle, and the Faraday rotator that is placed between two polarizers forms.This Faraday rotator comprises the magneto-optical crystal at center, and the ring-like permanent magnet of parcel magneto-optical crystal.
The develop rapidly of the modern optical communication technology requires to be used for the device microminiaturization of light path, so that integrated.And existing block optoisolator is due to the restriction of magneto-optical crystal volume, and smallest dimension obviously can't satisfy the integrated requirement of light path in the millimeter magnitude.
(the Theoretical analysis of optical and magneto-optical properties of one-dimensional magnetophotonic crystals such as H.Kato, Journal of Applied Physics.2003, Vol:93, 3906-3911) prepared experimentally the One-Dimension Magnetic photon crystal structure of single defective with the method for magnetron sputtering plating, and experiment value and theoretical modeling value are contrasted, result fits like a glove, confirmed to introduce the Faraday effect that the magneto-optical crystal defective can strengthen magneto-optical crystal significantly in photonic crystal.The integrated a new direction that proposed for optoisolator.
(the Properties of one-dimensional magnetophotonic crystals for use in optical isolator devices such as H.Kato, Transactions On Magnetics.2002, Vol:38,3246-3248) reported and to have realized up to the transmissivity more than 99% and 45 when containing two or three layers of magneto-optical crystal defective in 1-D photon crystal
oNear Faraday rotation angle, only tens microns of the Faraday rotators of this structure.But the optoisolator frequency spectrum of these structures is extremely narrow, can only be applicable to central task wavelength place.Fixed or in broadband connections, the optoisolator of this structure can't be used at flashing.
M. (the Adjustable magneto-optical isolators with flat-top responses such as Zamani, Optics Express.2012, Vol:20,24524-24535) proposed several One-Dimension Magnetic photon crystal structures that can realize broadband light isolation, and pointed out a kind ofly to make the Faraday rotation angle accurately equal 45 by horizontally rotating externally-applied magnetic field
oMethod.But the number of plies of above-mentioned several structures is more, is not easy preparation on technique, and the interior isolation effect of institute's broadband range that produces neither the best.
Summary of the invention
The concrete technical problems that the present invention will solve is that the number of plies of existing light isolation structure is more, and the interior isolation effect of institute's broadband range that produces is not good enough, and purpose is to provide a kind of One-Dimension Magnetic photonic crystal of realizing that broadband light is isolated.
The above-mentioned a kind of One-Dimension Magnetic photonic crystal of realizing the broadband light isolation that provides of the present invention comprises the One-Dimension Magnetic photonic crystal, it is characterized in that: the basic constituent element S of described One-Dimension Magnetic photonic crystal
0Structural formula as follows:
[H/L]
2/M/[L/H]
5/M/[H/L]
2/M/[L/H]
2/M/[H/L]
5/M/[L/H]
2；
Wherein: H is silicon, and L is silicon dioxide, and M mixes the cerium yttrium iron garnet;
Its first composite structure S
1=S
0/ M/S
0The second composite structure S
2=S
0/ M/S
0/ M/S
0
In technique scheme, additional technical feature is further:
Described the first composite structure S
1With the second composite structure S
2The central task wavelength be 1550nm.
Described central task wavelength is under 1550nm: the refractive index of silicon Si is 3.48; Silicon dioxide SiO
2Refractive index be 1.495; Mixing cerium yttrium iron garnet Ce:YIG is ε in the dielectric tensor
1=4.884, ε
2=0.009.
Described basic constituent element S
0In the thickness of silicon be 111.35nm; The thickness of silicon dioxide is 259.2nm; The thickness of mixing the cerium yttrium iron garnet is 158.68nm.
Described the first composite structure S
1Be 14.14 at externally-applied magnetic field and optical axis direction on surface level
oFaraday rotation angle during the angle is 45
o
Described the second composite structure S
2Be 49.61 at externally-applied magnetic field and optical axis direction on surface level
oFaraday rotation angle during the angle is 45
o
Realize the technical scheme of the One-Dimension Magnetic photonic crystal of a kind of broadband light isolation provided by the present invention, more reasonably to add the magneto-optical crystal defective in 1-D photon crystal, solved the existing light isolation structure number of plies more, the not good enough problem of isolation effect in the broadband range that produces, compared with prior art, the One-Dimension Magnetic photonic crystal that consists of combines the advantage of photonic crystal and magneto-optical crystal, has realized corresponding magneto-optic effect on the photonic crystal yardstick.
The first composite structure S
1Realize that with existing the One-Dimension Magnetic photonic crystal of 3.5nm broadband isolation compares, the total number of plies of rete reduces to 83 layers from 173 layers, has reduced the preparation difficulty, the One-Dimension Magnetic photonic crystal applications of this structure can further be reduced the yardstick of optoisolator in optoisolator, be more convenient for integrated;
The second composite structure is S
2, realizing that with existing the One-Dimension Magnetic photon crystal structure of 2.5nm broadband isolation compares, the fluctuation range at Faraday rotation angle is from 45
o-54.56
oBe reduced to 45
o-48.55
o, the One-Dimension Magnetic photonic crystal applications of this structure can be improved the stability of optoisolator work in optoisolator.
Description of drawings
Fig. 1 is the basic constituent element S of the present invention
0Structural representation.
Fig. 2 is the present invention the first composite structure S
1Structural representation.
Fig. 3 is the present invention the second composite structure S
2Structural representation.
Fig. 4 is when externally-applied magnetic field is parallel with optical path direction, the present invention the first composite structure S
1Transmissivity and near the Faraday rotation curve of cyclical fluctuations figure of angle centre wavelength.
Fig. 5 is when externally-applied magnetic field rotates in the horizontal direction, the present invention the first composite structure S
1Transmissivity and the Faraday rotation value figure of angle under different externally-applied magnetic field rotation angle.
Fig. 6 rotates 14.14 in the horizontal direction when externally-applied magnetic field
oDuring the angle, the present invention the first composite structure S
1Transmissivity and near the Faraday rotation curve of cyclical fluctuations figure of angle centre wavelength.
Fig. 7 is when externally-applied magnetic field is parallel with optical path direction, the present invention the second composite structure S
2Transmissivity and near the Faraday rotation curve of cyclical fluctuations figure of angle centre wavelength.
Fig. 8 is when externally-applied magnetic field rotates in the horizontal direction, the present invention the second composite structure S
2Transmissivity and the value figure of Faraday rotation under different externally-applied magnetic field rotation angle.
Fig. 9 rotates 49.61 in the horizontal direction when externally-applied magnetic field
oDuring the angle, the present invention the second composite structure S
2Transmissivity and near the Faraday rotation curve of cyclical fluctuations figure of angle centre wavelength.
Embodiment
Implement the One-Dimension Magnetic photonic crystal of a kind of broadband light isolation of the present invention, the central task wavelength is 1550nm.
Implement the One-Dimension Magnetic photonic crystal of a kind of broadband light isolation of the present invention, comprise the One-Dimension Magnetic photonic crystal, as shown in figure one, its formation is the basic constituent element S of above-mentioned described One-Dimension Magnetic photonic crystal
0Structural formula be:
[H/L]
2/ M/[L/H]
5/ M/[H/L]
2/ M/[L/H]
2/ M/[H/L]
5/ M/[L/H]
2, wherein H is that thickness is that 111.35nm, refractive index are 3.48 silicon Si; L is that thickness is that 259.2nm, refractive index are 1.495 silicon dioxide SiO
2M is that thickness is ε in 158.68nm, dielectric tensor
1=4.884, ε
2=0.009 mix cerium yttrium iron garnet Ce:YIG.
Embodiment 1
The present invention the first composite structure S as shown in Figure 2
1=S
0/ M/S
0, the method for available magnetron sputtering plating is pressed structure S on optical base-substrate
1These three kinds of films of sequential aggradation, totally 83 layers.When externally-applied magnetic field is parallel with optical path direction, the present invention the first composite structure S
1Near transmissivity and the Faraday rotation angle curve of cyclical fluctuations centre wavelength as shown in Figure 4.In order to make the present invention the first composite structure S
1Obtain 45
oThe Faraday rotation angle, we need to rotate externally-applied magnetic field in the horizontal direction, the first composite structure S
1Transmissivity and Faraday rotation angle value with the variation of externally-applied magnetic field gyration as shown in Figure 5.Externally-applied magnetic field is horizontally rotated with optical path direction be 14.14
oDuring the angle, can obtain near transmissivity and the Faraday rotation angle curve of cyclical fluctuations centre wavelength as shown in Figure 6.As seen from Figure 6, this optoisolator has more smooth broadband in the 1548.25nm-155.75nm scope, and the Faraday rotation angle is 45 in this scope
o-53.5
oInterior fluctuation, transmissivity fluctuates in 99.73%-99.75%.
Embodiment 2
The present invention the second composite structure S as shown in Figure 3
2=S
0/ M/S
0/ M/S
0, the method for available magnetron sputtering plating is pressed structure S on optical base-substrate
2These three kinds of films of sequential aggradation, totally 125 layers.When externally-applied magnetic field is parallel with optical path direction, the present invention the first composite structure S
2Near transmissivity and the Faraday rotation angle curve of cyclical fluctuations centre wavelength as shown in Figure 7.In order to make the present invention the first composite structure S
2Obtain 45
oThe Faraday rotation angle, we need to rotate externally-applied magnetic field in the horizontal direction, the first composite structure S
2Transmissivity and Faraday rotation angle value with the variation of externally-applied magnetic field gyration as shown in Figure 8.Externally-applied magnetic field is horizontally rotated with optical path direction be 49.61
oDuring the angle, can obtain near transmissivity and the Faraday rotation angle curve of cyclical fluctuations centre wavelength as shown in Figure 9.As seen from Figure 9, the optoisolator of this structure can be realized metastable isolation effect in the 1548.75nm-155.25nm scope, and the Faraday rotation angle is 45 in this scope
o-48.55
oInterior fluctuation, transmissivity fluctuates in 99.61%-99.87%.
Claims (6)
1. an One-Dimension Magnetic photonic crystal of realizing the broadband light isolation, is characterized in that: the basic constituent element S of described One-Dimension Magnetic photonic crystal
0Structural formula as follows:
[H/L]
2/M/[L/H]
5/M/[H/L]
2/M/[L/H]
2/M/[H/L]
5/M/[L/H]
2；
Wherein: H is silicon, and L is silicon dioxide, and M mixes the cerium yttrium iron garnet;
Its first composite structure S
1=S
0/ M/S
0The second composite structure S
2=S
0/ M/S
0/ M/S
0
2. a kind of One-Dimension Magnetic photonic crystal of realizing the broadband light isolation as claimed in claim 1, is characterized in that: described the first composite structure S
1With the second composite structure S
2The central task wavelength be 1550nm.
3. a kind of One-Dimension Magnetic photonic crystal of realizing broadband light isolation as claimed in claim 2, it is characterized in that: described central task wavelength is under 1550nm: the refractive index of silicon Si is 3.48; Silicon dioxide SiO
2Refractive index be 1.495; Mixing cerium yttrium iron garnet Ce:YIG is ε in the dielectric tensor
1=4.884, ε
2=0.009.
4. a kind of One-Dimension Magnetic photonic crystal of realizing the broadband light isolation as claimed in claim 1, is characterized in that: described basic constituent element S
0In the thickness of silicon be 111.35nm; The thickness of silicon dioxide is 259.2nm; The thickness of mixing the cerium yttrium iron garnet is 158.68nm.
5. a kind of One-Dimension Magnetic photonic crystal of realizing the broadband light isolation as claimed in claim 1, is characterized in that: described the first composite structure S
1Be 14.14 at externally-applied magnetic field and optical axis direction on surface level
oFaraday rotation angle during the angle is 45
o
6. a kind of One-Dimension Magnetic photonic crystal of realizing the broadband light isolation as claimed in claim 1, is characterized in that: described the second composite structure S
2Be 49.61 at externally-applied magnetic field and optical axis direction on surface level
oFaraday rotation angle during the angle is 45
o
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|---|---|---|---|
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|---|---|---|---|
| CN201310065842.0A CN103123421B (en) | 2013-03-04 | 2013-03-04 | One-dimensional magnetic photonic crystal for achieving broadband optical isolation |
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| CN103123421B CN103123421B (en) | 2015-06-17 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472598A (en) * | 2013-10-12 | 2013-12-25 | 太原理工大学 | One-dimensional magnetic photonic crystal for implementing optical isolation |
| CN104483764A (en) * | 2014-11-11 | 2015-04-01 | 江苏大学 | Defective magneto photon crystal with non-reciprocity feature and purpose |
| CN105093571A (en) * | 2015-07-31 | 2015-11-25 | 南京邮电大学 | Large-incident-angle magnetic photonic crystal broadband photoisolator |
| CN106200023A (en) * | 2016-08-31 | 2016-12-07 | 欧阳征标 | Magneto-optic memory technique void fraction wave magnetic conduction surface Fast-wave direction controllable light diode |
| CN108538933A (en) * | 2018-05-11 | 2018-09-14 | 南京工业大学 | Magneto-optical material microstructure photovoltaic radiator with nonreciprocity |
| CN110133800A (en) * | 2019-05-24 | 2019-08-16 | 太原理工大学 | The unidirectional highly transmissive waveguide type photon crystal heterojunction structure of broadband can be achieved |
| CN113934026A (en) * | 2021-09-15 | 2022-01-14 | 安徽工程大学 | Non-reciprocal heat radiator based on Fabonacci quasi-periodic structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6825982B1 (en) * | 2002-06-27 | 2004-11-30 | The United States Of Americas As Represented By The Administrator Of The National Aeronautics And Space Administration | Strongly-refractive one-dimensional photonic crystal prisms |
-
2013
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6825982B1 (en) * | 2002-06-27 | 2004-11-30 | The United States Of Americas As Represented By The Administrator Of The National Aeronautics And Space Administration | Strongly-refractive one-dimensional photonic crystal prisms |
Non-Patent Citations (4)
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|---|
| 冯睿: "《基于磁光光子晶体的光隔离器》", 《中国优秀硕士学位论文全文数据库 信息科技辑》, 31 May 2012 (2012-05-31) * |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472598A (en) * | 2013-10-12 | 2013-12-25 | 太原理工大学 | One-dimensional magnetic photonic crystal for implementing optical isolation |
| CN103472598B (en) * | 2013-10-12 | 2015-12-09 | 太原理工大学 | A kind of one-dimensional magnetic photonic crystal realizing light isolation |
| CN104483764A (en) * | 2014-11-11 | 2015-04-01 | 江苏大学 | Defective magneto photon crystal with non-reciprocity feature and purpose |
| CN104483764B (en) * | 2014-11-11 | 2017-08-04 | 江苏大学 | A kind of defect magnetic photonic crystal and purposes with nonreciprocity characteristic |
| CN105093571A (en) * | 2015-07-31 | 2015-11-25 | 南京邮电大学 | Large-incident-angle magnetic photonic crystal broadband photoisolator |
| CN106200023A (en) * | 2016-08-31 | 2016-12-07 | 欧阳征标 | Magneto-optic memory technique void fraction wave magnetic conduction surface Fast-wave direction controllable light diode |
| CN108538933A (en) * | 2018-05-11 | 2018-09-14 | 南京工业大学 | Magneto-optical material microstructure photovoltaic radiator with nonreciprocity |
| CN110133800A (en) * | 2019-05-24 | 2019-08-16 | 太原理工大学 | The unidirectional highly transmissive waveguide type photon crystal heterojunction structure of broadband can be achieved |
| CN110133800B (en) * | 2019-05-24 | 2020-08-04 | 太原理工大学 | Waveguide type photonic crystal heterostructure capable of realizing wide-band unidirectional high transmission |
| CN113934026A (en) * | 2021-09-15 | 2022-01-14 | 安徽工程大学 | Non-reciprocal heat radiator based on Fabonacci quasi-periodic structure |
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