WO2018041185A1 - Guide d'ondes à faibles pertes ayant un mode rapide au niveau d'une surface magnétique d'une couche mince magnéto-optique de celui-ci et à flexibilité unidirectionnelle à un angle quelconque - Google Patents

Guide d'ondes à faibles pertes ayant un mode rapide au niveau d'une surface magnétique d'une couche mince magnéto-optique de celui-ci et à flexibilité unidirectionnelle à un angle quelconque Download PDF

Info

Publication number
WO2018041185A1
WO2018041185A1 PCT/CN2017/099822 CN2017099822W WO2018041185A1 WO 2018041185 A1 WO2018041185 A1 WO 2018041185A1 CN 2017099822 W CN2017099822 W CN 2017099822W WO 2018041185 A1 WO2018041185 A1 WO 2018041185A1
Authority
WO
WIPO (PCT)
Prior art keywords
magneto
optical
thin film
angle
waveguide
Prior art date
Application number
PCT/CN2017/099822
Other languages
English (en)
Chinese (zh)
Inventor
郑耀贤
艾月霞
欧阳征标
Original Assignee
深圳大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳大学 filed Critical 深圳大学
Publication of WO2018041185A1 publication Critical patent/WO2018041185A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—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

Definitions

  • the invention relates to a magneto-optical material, a magnetic surface wave, a unidirectional transmission and a curved waveguide, in particular to a low-loss magneto-optical film magnetic surface fast mode arbitrary angle one-way bending waveguide.
  • a curved waveguide is an optical device used as a conversion optical path, which occupies an important position in an optical waveguide device. Bending in the optical waveguide is necessary due to the change in the direction of beam propagation in the optical waveguide, the displacement of the beam transmission axis, and the need to reduce the volume of the device. The bending of the waveguide causes a change in the optical characteristic distribution of the waveguide material in the direction of light transmission, so that the curved waveguide has a high loss.
  • the field of turning waveguides has been extensively studied, and the curved turning type curved waveguide is the main content of this research. But even for this type of waveguide, the bending loss and transition loss that are present still severely restrict the transmission efficiency. In addition, structural defects and the like can also cause other losses to the waveguide.
  • Photodiodes and isolators are optics that only allow light to travel in one direction and are used to prevent unwanted light feedback.
  • the main component of conventional photodiodes and isolators is the Faraday rotator, which applies the Faraday effect (magneto-optical effect) as its working principle.
  • Conventional Faraday isolators consist of a polarizer, a Faraday rotator, and an analyzer. This device is complex in structure and is commonly used in free-space optical systems.
  • integrated optical devices such as fiber optics or waveguides are non-polarization-maintaining systems that cause loss of polarization angle and are therefore not suitable for use with pull-up isolators.
  • the object of the present invention is to overcome the deficiencies in the prior art and provide a low-loss magneto-optical film magnetic surface fast mode arbitrary angle one-way one-way one-way one-way one-way one-way one-way one-way one-way Turn the waveguide.
  • the low-loss type magneto-optical film magnetic surface fast mode arbitrary angle one-way bending waveguide of the invention comprises an optical input port 1, a light output port 2, a magneto-optical film 3, a background medium 4 and a bias magnetic field;
  • the curved waveguide port 1 is an optical input end, and the port 2 is a light output end;
  • the magneto-optical film 3 is disposed in the background medium 4;
  • the magneto-optical film 3 is made of a magneto-optical material;
  • the magneto-optical film 3 and the background medium 4 is curved at an arbitrary angle;
  • the magneto-optical film 3 is provided with a bias magnetic field;
  • the curved portion of the magneto-optical film 3 is in the shape of a ring; and the surface of the magneto-optical material and the background medium 4 is a magnetic surface Fast wave.
  • the interface between the magneto-optical material and the background medium 4 constitutes an optical waveguide.
  • the magneto-optical film 3 and the background medium 4 are connected to the light input end and the light output end by an arbitrary angle curved shape.
  • the magneto-optical film 3 and the background medium 4 are structured as a flat waveguide structure.
  • the magneto-optical material is magneto-optical glass or various rare earth element-doped garnets and rare earth-transition metal alloy films.
  • the background medium 4 is a common dielectric material or air.
  • the arbitrary angle curved shape is a 30 degree turn shape, a 45 degree turn shape, a 60 degree turn shape, a 90 degree turn shape, a 120 degree turn shape, a 135 degree turn shape, a 150 degree turn shape, and a 180 degree turn shape.
  • the bias magnetic field is generated by an electromagnet or a permanent magnet.
  • the unidirectional turning waveguide is composed of a magneto-optical material thin film waveguide.
  • the working mode of the one-way cornering waveguide is TE mode.
  • the invention is suitable for large-scale optical path integration and has wide application prospects. Compared with the prior art, it has the following positive effects.
  • the structure is simple and easy to implement.
  • Magnetic surface waves have immune characteristics to structural defects, ultra-low loss, ultra-high transmission efficiency, and are widely used in the design of various optical waveguides.
  • FIG. 1 is a structural view of a low-loss magneto-optical thin film magnetic surface fast mode arbitrary angle one-way turning waveguide.
  • FIG. 2 is a working principle diagram of a low-loss magneto-optical thin film magnetic surface fast mode unidirectional turning waveguide.
  • Fig. 3 is a graph showing a first embodiment of the forward-reverse transmission efficiency of the low-loss type magneto-optical film unidirectional turning waveguide as a function of the light wave frequency.
  • Fig. 4 is a graph showing a second embodiment of the forward-reverse transmission efficiency of the low-loss magneto-optical film unidirectional turning waveguide as a function of the light wave frequency.
  • Fig. 5 is a graph showing a third embodiment of the forward-reverse transmission efficiency of the low-loss type magneto-optical film unidirectional turning waveguide as a function of the light wave frequency.
  • Fig. 6 is a graph showing a fourth embodiment of the forward-reverse transmission efficiency of the low-loss magneto-optical film unidirectional turning waveguide as a function of the light wave frequency.
  • the low-loss type magneto-optical film magnetic surface fast mode arbitrary angle one-way bending waveguide of the present invention comprises an optical input end 1, a light output end 2, a magneto-optical film 3, a background medium 4 and an offset.
  • the magnetic field H 0 the working mode of the unidirectional turning waveguide is the TE mode, the unidirectional turning waveguide is composed of the magneto-optical material thin film waveguide, the unidirectional turning waveguide port 1 is the optical input end, and the port 2 is the optical output end; the magneto-optical film 3
  • the interface with the background medium 4 is a region where the light energy is mainly concentrated, the magneto-optical film 3 is disposed in the background medium 4, and the magneto-optical film 3 is a magneto-optical material, that is, a magneto-optical material film;
  • the magneto-optical material is a magneto-optical glass or various Rare earth element-doped garnet and rare earth-transition metal alloy film;
  • the curved portion of the magneto-optical film 3 has a ring shape, the radius of the inner arc of the ring is r, and the radius of the outer arc is r+w.
  • the length of the curved portion depends on the angle of the bend.
  • the magneto-optical material film 3 and the background medium 4 are curved at any angle, and the shape bent at any angle is a circular arc shape (arc-shaped turning type curved waveguide), and the turning angle may be any angle between 0 degrees and 180 degrees, one direction
  • the bending angle of the curved waveguide can also be an angle between 0 and 180 degrees; the invention can adopt any turning angle of 10 degrees, 50 degrees and 170 degrees, and can also adopt a waveguide turning angle including: 30 degrees, 45 degrees, 60 degrees. , 90 degrees, 120 degrees, 135 degrees, 150 degrees and 180 degrees.
  • Figure 1 (a) one-way turning angle is 30 degrees
  • Figure 1 (b) one-way turning angle is 45 degrees
  • Figure 1 (c) one-way turning angle is 60 degrees
  • Figure 1 (d) (i) single The turning angle is 90 degrees
  • the one-way turning angle of the figure (e) is 120 degrees
  • the one-way turning angle of Figure 1 (f) is 135 degrees
  • the one-way turning angle of Figure 1 (g) is 150 degrees
  • the one-way corner is 180 degrees.
  • the turning angle is 45 degrees, it is a one-eighth ring
  • when the turning angle is 90°, it is a quarter ring
  • when the turning angle is 180 degrees, it is a half ring, etc. Etc., and so on.
  • both of the structures of FIGS. 1(d) and (i) are mirror-symmetrical and have the same operational characteristics.
  • the surface of the magneto-optical material and the background medium is a magnetic surface fast wave
  • the magneto-optical material film and the background medium structure are flat waveguide structures
  • the interface between the magneto-optical material and the background medium constitutes an optical waveguide
  • the optical waveguide transmits optical signals unidirectionally, Used as a photodiode or isolator
  • the magneto-optical material film 3 and the background medium 4 are connected to the optical input port 1 and the light output port 2 by any angle bending
  • the background medium 4 is made of ordinary dielectric material or air
  • the magneto-optical material film 3 is disposed.
  • the bias magnetic field is generated by an electromagnet or a permanent magnet.
  • the magnetic surface wave generated by the magneto-optical material-medium interface is a phenomenon similar to the metal surface plasmon (SPP).
  • SPP metal surface plasmon
  • the magneto-optical material Under the action of the biased static magnetic field, the magneto-optical material has a magnetic permeability of tensor, and at the same time, its effective refractive index is negative in a certain optical band.
  • the surface of the magneto-optical material is capable of producing a guided wave and has a property of unidirectional propagation, which is called a surface acoustic wave (Surface Magnetically Polarized Wave, SMP).
  • the low-loss type magneto-optical thin film magnetic surface fast mode arbitrary angle one-way turning waveguide is formed by disposing a magneto-optical material film in a background medium (air), and the magnetic surface fast wave generated by the magneto-optical material-medium interface is used for light One-way bending transmission.
  • the technical solution of the present invention is based on the optical non-reciprocity of the magneto-optical material and the unique conductive surface wave characteristic of the magneto-optical material-medium interface to realize the design of the unidirectional turning waveguide.
  • the basic principles of this technical solution are as follows:
  • the magneto-optical material is a material having magnetic anisotropy, and the magnetic dipole inside the magneto-optical material is arranged in the same direction by the application of a static magnetic field, thereby generating a magnetic dipole moment.
  • the magnetic dipole moment will interact strongly with the optical signal, which in turn produces a non-reciprocal transmission of light.
  • the magnetic permeability tensor of the magneto-optical material is under the action of a bias magnetic field H 0 oriented in the direction perpendicular to the vertical paper:
  • ⁇ 0 is the magnetic permeability in vacuum
  • ⁇ is the gyromagnetic ratio
  • H 0 is the applied magnetic field
  • M s is the saturation magnetization
  • ⁇ is the operating frequency
  • ⁇ is the loss coefficient. If the direction of the biasing magnetic field is changed to the vertical paper facing direction, H 0 and M s will change the sign.
  • the magnetic surface wave generated by the magneto-optical material-medium interface can be solved according to the magnetic permeability tensor of the magneto-optical material and Maxwell's equations.
  • the electric and magnetic fields that satisfy the surface wave (which is a TE wave) at the interface should have the following form:
  • YIG material loss coefficient ⁇ 3 ⁇ 10 -4
  • the turning angle is 90 °.
  • the direction of the biasing static magnetic field is the vertical paper facing outward.
  • the low-loss type magneto-optical film of the device of the invention has a magnetic surface fast mode arbitrary angle one-way turning waveguide which is arranged in a common dielectric material by a magneto-optical material, and its structural size and parameters, such as the inner arc radius r of the ring and the magneto-optical film
  • the thickness w of 3 can be flexibly selected according to the working wavelength and actual needs. Changing the size has no major impact on device performance.
  • YIG yttrium iron garnet
  • the bias magnetic field is 900 Oe
  • the magnetic field direction is perpendicular to the paper
  • the background medium 4 is air.
  • the operating frequency f of the device is composed of magneto-optical material and
  • the dielectric constants ⁇ 1 , ⁇ 2 and magnetic permeability [ ⁇ 1 ] of the medium are determined by ⁇ 2 .
  • the unidirectional turning waveguide is composed of a magneto-optical film waveguide having a turning angle of 45 degrees.
  • the light wave input from port 1 will generate a magnetic surface wave inside the device, which is then output from port 2 through the device; and the light wave input from port 2 will be blocked by the device and cannot be output from port 1.
  • the unidirectional cornering waveguide has an operating frequency range of 4.98 GHz to 7.40 GHz. In the operating frequency range, considering the material loss, the unidirectional turning waveguide has a maximum forward-reverse transmission isolation of 20.8566 dB and a forward transmission insertion loss of 0.0644 dB.
  • the unidirectional turning waveguide is composed of a magneto-optical film waveguide having a turning angle of 90 degrees.
  • the light wave input from port 1 will generate a magnetic surface wave inside the device, which is then output from port 2 through the device; and the light wave input from port 2 will be blocked by the device and cannot be output from port 1.
  • the operating frequency range of the unidirectional cornering waveguide is 4.76 GHz to 7.40 GHz.
  • the unidirectional turning waveguide has a maximum forward and reverse transmission isolation of 21.4388 dB and a forward transmission insertion loss of 0.0174 dB.
  • the unidirectional turning waveguide is composed of a magneto-optical film waveguide having a turning angle of 135 degrees.
  • the light wave input from port 1 will generate a magnetic surface wave inside the device, which is then output from port 2 through the device; and the light wave input from port 2 will be blocked by the device and cannot be output from port 1.
  • the unidirectional cornering waveguide has an operating frequency range of 4.90 GHz to 7.44 GHz. In the operating frequency range, considering the material loss, the one-way cornering waveguide has a maximum forward-reverse transmission isolation of 27.7752 dB and a forward transmission insertion loss of 0.0663 dB.
  • the unidirectional turning waveguide is composed of a magneto-optical film waveguide having a turning angle of 180 degrees.
  • the light wave input from port 1 will generate a magnetic surface wave inside the device, which is then output from port 2 through the device; and the light wave input from port 2 will be blocked by the device and cannot be output from port 1.
  • the unidirectional cornering waveguide has an operating frequency range of 4.94 GHz to 7.44 GHz. In the operating frequency range, considering the material loss, the one-way cornering waveguide has a maximum forward-reverse transmission isolation of 19.7184 dB and a forward transmission insertion loss of 0.0231 dB.
  • the transmission efficiency curve of the magneto-optical thin film magnetic surface fast mode unidirectional turning waveguide with different turning angles of FIG. 3, FIG. 4, FIG. 5 and FIG. 6 can obtain the optical frequency range of the magnetic surface fast mode transmitted by the magneto-optical film turning waveguide. That is, the operating frequency range of the unidirectional turning waveguide. It can be seen from the results that the low-loss type magneto-optical thin film magnetic surface fast mode arbitrary angle one-way turning waveguide of the present invention is capable of Working effectively.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

L'invention concerne un guide d'ondes à faibles pertes ayant un mode rapide au niveau d'une surface magnétique d'une couche mince magnéto-optique de celui-ci et à flexibilité unidirectionnelle à un angle quelconque, comprenant : un port d'entrée de lumière (1) ; un port de sortie de lumière (2) ; une couche mince magnéto-optique (3) ; un milieu d'arrière-plan (4) ; et un champ magnétique de polarisation. Le port d'entrée de lumière (1) du guide d'ondes à flexibilité unidirectionnelle est une extrémité d'entrée de lumière. Le port de sortie de lumière (2) est une extrémité de sortie de lumière. La couche mince magnéto-optique (3) est disposée dans le milieu d'arrière-plan (4). La couche mince magnéto-optique (3) est constituée d'un matériau magnéto-optique. La couche mince magnéto-optique (3) et le support d'arrière-plan (4) peuvent être courbés à un angle quelconque. Le champ magnétique de polarisation est fourni au niveau de la couche mince magnéto-optique (3). La couche mince magnéto-optique (3) a une partie courbée en forme d'anneau. Une onde rapide de surface magnétique existe au niveau d'une surface entre le matériau magnéto-optique et le milieu d'arrière-plan (4). L'invention présente une structure simple, une petite taille, une faible perte et une efficacité de transmission élevée, elle facilite l'intégration, est appropriée pour des circuits intégrés optiques à grande échelle, et peut être appliquée de façon variée dans diverses conceptions de guides d'ondes optiques.
PCT/CN2017/099822 2016-08-31 2017-08-31 Guide d'ondes à faibles pertes ayant un mode rapide au niveau d'une surface magnétique d'une couche mince magnéto-optique de celui-ci et à flexibilité unidirectionnelle à un angle quelconque WO2018041185A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610797018.8 2016-08-31
CN201610797018.8A CN106249445A (zh) 2016-08-31 2016-08-31 低损型磁光薄膜磁表面快模任意角单向拐弯波导

Publications (1)

Publication Number Publication Date
WO2018041185A1 true WO2018041185A1 (fr) 2018-03-08

Family

ID=58081136

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/099822 WO2018041185A1 (fr) 2016-08-31 2017-08-31 Guide d'ondes à faibles pertes ayant un mode rapide au niveau d'une surface magnétique d'une couche mince magnéto-optique de celui-ci et à flexibilité unidirectionnelle à un angle quelconque

Country Status (2)

Country Link
CN (1) CN106249445A (fr)
WO (1) WO2018041185A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106154416B (zh) * 2016-08-31 2021-02-19 深圳大学 无泄漏低损磁光薄膜磁表面快模可控单向任意拐弯波导
CN106249445A (zh) * 2016-08-31 2016-12-21 欧阳征标 低损型磁光薄膜磁表面快模任意角单向拐弯波导
CN106291812B (zh) * 2016-08-31 2019-04-30 欧阳征标 低损磁光薄膜磁表面快模任意方向可控单向拐弯波导
CN106405729B (zh) * 2016-08-31 2019-04-23 欧阳征标 无泄漏低损型磁光薄膜磁表面快模任意角单向拐弯波导
CN107870456B (zh) * 2017-11-30 2020-08-11 电子科技大学 一种mzi型磁光隔离器
CN111721993A (zh) * 2020-06-19 2020-09-29 贵州江源电力建设有限公司 一种高灵敏的小型化电流检测系统

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1102285A2 (fr) * 1999-10-27 2001-05-23 Minebea Co., Ltd. Elément magnéto-optique
CN101261372A (zh) * 2008-04-16 2008-09-10 浙江大学 一种偏振无关磁光波导光隔离器
WO2008126624A1 (fr) * 2007-03-19 2008-10-23 National Institute For Materials Science Elément magnéto-optique sans plomb et son procédé de fabrication
JP2008268862A (ja) * 2007-03-28 2008-11-06 Toyohashi Univ Of Technology 磁気光学体
WO2009081488A1 (fr) * 2007-12-25 2009-07-02 Shibaura Institute Of Technology Dispositif optique non réciproque et procédé de fabrication du dispositif optique non réciproque
CN102674827A (zh) * 2012-05-28 2012-09-19 西安交通大学 一种新型集成波导型光隔离器及其制备工艺
CN106154416A (zh) * 2016-08-31 2016-11-23 欧阳征标 无泄漏低损磁光薄膜磁表面快模可控单向任意拐弯波导
CN106249445A (zh) * 2016-08-31 2016-12-21 欧阳征标 低损型磁光薄膜磁表面快模任意角单向拐弯波导
CN106291812A (zh) * 2016-08-31 2017-01-04 欧阳征标 低损磁光薄膜磁表面快模任意方向可控单向拐弯波导

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3540826B2 (ja) * 1993-12-27 2004-07-07 京セラ株式会社 ファイバ型光アイソレータ
JP2001021857A (ja) * 1999-07-08 2001-01-26 Tokin Corp 磁気光学素子、およびその製造方法および光アイソレータ
CN102736182B (zh) * 2012-06-06 2014-09-17 武汉电信器件有限公司 平面波导型光隔离器
CN105137539A (zh) * 2015-09-18 2015-12-09 浙江工业大学 基于光子晶体的超宽带光二极管

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1102285A2 (fr) * 1999-10-27 2001-05-23 Minebea Co., Ltd. Elément magnéto-optique
WO2008126624A1 (fr) * 2007-03-19 2008-10-23 National Institute For Materials Science Elément magnéto-optique sans plomb et son procédé de fabrication
JP2008268862A (ja) * 2007-03-28 2008-11-06 Toyohashi Univ Of Technology 磁気光学体
WO2009081488A1 (fr) * 2007-12-25 2009-07-02 Shibaura Institute Of Technology Dispositif optique non réciproque et procédé de fabrication du dispositif optique non réciproque
CN101261372A (zh) * 2008-04-16 2008-09-10 浙江大学 一种偏振无关磁光波导光隔离器
CN102674827A (zh) * 2012-05-28 2012-09-19 西安交通大学 一种新型集成波导型光隔离器及其制备工艺
CN106154416A (zh) * 2016-08-31 2016-11-23 欧阳征标 无泄漏低损磁光薄膜磁表面快模可控单向任意拐弯波导
CN106249445A (zh) * 2016-08-31 2016-12-21 欧阳征标 低损型磁光薄膜磁表面快模任意角单向拐弯波导
CN106291812A (zh) * 2016-08-31 2017-01-04 欧阳征标 低损磁光薄膜磁表面快模任意方向可控单向拐弯波导

Also Published As

Publication number Publication date
CN106249445A (zh) 2016-12-21

Similar Documents

Publication Publication Date Title
WO2018041185A1 (fr) Guide d'ondes à faibles pertes ayant un mode rapide au niveau d'une surface magnétique d'une couche mince magnéto-optique de celui-ci et à flexibilité unidirectionnelle à un angle quelconque
WO2018041173A1 (fr) Guide d'ondes à faibles pertes sans fuite ayant un mode rapide au niveau de la surface magnétique d'un film mince magnéto-optique associé et étant flexible de manière unidirectionnelle selon n'importe quel angle
WO2018041189A1 (fr) Guide d'ondes à courbure unidirectionnelle, angle arbitraire, mode rapide de surface magnétique avec espace magnéto-optique de type à faible perte sans fuite
WO2018041177A1 (fr) Guide d'ondes à courbure unidirectionnelle contrôlable dans la direction arbitraire à mode rapide à surface magnétique avec film mince magnéto-optique à faible perte
WO2018041175A1 (fr) Guide d'ondes courbé unidirectionnel à angle arbitraire à mode rapide à surface magnétique avec film mince magnéto-optique à faible perte d'étanchéité
WO2018041178A1 (fr) Guide d'ondes à courbure unidirectionnelle réglable dans une direction arbitraire à mode rapide de surface magnétique comportant un intervalle magnéto-optique à faible perte
WO2018041184A1 (fr) Photodiode à onde rapide à surface magnétique avec film mince magnéto-optique sans fuite
WO2018041179A1 (fr) Photodiode à ondes rapides de surface magnétique avec guide d'ondes à espace en matériau magnéto-optique sans fuite
WO2018041183A1 (fr) Photodiode réglable dans la direction d'onde rapide de surface magnétique à film fin magnéto-optique sans fuite
WO2018041188A1 (fr) Guide d'ondes à faible perte sans fuite ayant un mode rapide au niveau de la surface magnétique d'un espace magnéto-optique de celui-ci et étant flexible de manière unidirectionnelle à n'importe quel angle
WO2018041182A1 (fr) Photodiode à onde rapide à surface magnétique avec guide d'onde à entrefer en matériau magnéto-optique
WO2018041186A1 (fr) Guide d'ondes courbé unidirectionnel à angle arbitraire à mode rapide à surface magnétique avec espace magnéto-optique à faible perte
WO2018041176A1 (fr) Photodiode pouvant être commandée par une direction d'onde rapide de surface magnétique avec guide d'onde d'espace de matériau magnéto-optique
WO2018041180A1 (fr) Photodiode contrôlable dans le sens de l'onde rapide de surface magnétique avec guide d'ondes à entrefer en matériau magnéto-optique sans fuite
WO2018041174A1 (fr) Photodiode à onde rapide à surface magnétique avec film mince magnéto-optique
WO2018041181A1 (fr) Photodiode à direction d'onde rapide de surface magnétique pouvant être commandée avec couche mince magnéto-optique
Shirato et al. High isolation in silicon waveguide optical isolator employing nonreciprocal phase shift
JP2012146945A (ja) 人工磁性体、人工磁性体デバイス、人工磁性反射壁および人工磁性透過体
Jiang et al. A compact low-loss one-way transmission structure based on nonreciprocal coupling
CN219843149U (zh) 一种双极化非对称传输、吸波超材料结构
Jiang et al. A Low-Loss Broadband One-Way Transmission Structure Based on Nonreciprocal Coupling
Yokoi Interferometric optical isolator with TiO2/magnetic garnet waveguide operated in unidirectional magnetic field
Shamonin et al. Radiatively coupled magneto-optic waveguides
CN111816965A (zh) 波导隔离器及其控制方法
JPS6343726B2 (fr)

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17845487

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205 DATED 25/06/2019)

122 Ep: pct application non-entry in european phase

Ref document number: 17845487

Country of ref document: EP

Kind code of ref document: A1