CN108037563A - A kind of micro-loop optical transmission apparatus of asymmetric reflective and preparation method thereof - Google Patents
A kind of micro-loop optical transmission apparatus of asymmetric reflective and preparation method thereof Download PDFInfo
- Publication number
- CN108037563A CN108037563A CN201711285335.2A CN201711285335A CN108037563A CN 108037563 A CN108037563 A CN 108037563A CN 201711285335 A CN201711285335 A CN 201711285335A CN 108037563 A CN108037563 A CN 108037563A
- Authority
- CN
- China
- Prior art keywords
- micro
- loop
- substrate
- transmission apparatus
- optical transmission
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- 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
- G02B6/12004—Combinations of two or more optical elements
-
- 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
- G02B2006/12083—Constructional arrangements
-
- 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
- G02B2006/12133—Functions
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Integrated Circuits (AREA)
Abstract
The present invention relates to a kind of micro-loop optical transmission apparatus of asymmetric reflective, including substrate, micro-loop on substrate is set, the upload straight wave guide on rear side of micro-loop on substrate is set, the download straight wave guide on front side of micro-loop on substrate is set, and the scattering object positioned at micro-loop left/right on substrate is set.
Description
Technical field
The present invention relates to optical communication applications and integrated opto-electronic device field, more particularly, to a kind of asymmetric reflective
Micro-loop optical transmission apparatus and preparation method thereof.
Background technology
In optics, the research of stealthy aspect continue for a nearly century.The list of the concept requirement light of optical invisible
To permeability.Space is divided into two parts by stealth material, is respectively inner space and the exterior space of material parcel.From exterior sky
Between incide light requirement energy areflexia on stealth material and scattering pass through stealth material so that inside is able to observe that outside
Situation.And the light being transmitted to from inner space on stealth material then requires that strong reflection and scattering occurs, make as few as possible
Interior lights be transmitted to exterior space, observed by exterior space.Transmit and reflect in optical transport light path this requires breaking
Long-range navigation thatch reciprocity, realize light transmission and reflection asymmetry.
The content of the invention
The goal of the invention of the present invention is to provide a kind of micro-loop optical transmission apparatus, it can realize the asymmetric anti-of optical transport
Penetrate, or even realize the unidirectional areflexia of optical transport.
To achieve the above object, the technical solution taken of the present invention is：
A kind of micro-loop optical transmission apparatus of asymmetric reflective, including substrate, micro-loop on substrate is set, is set on substrate
Upload straight wave guide on rear side of micro-loop, sets the download straight wave guide on front side of micro-loop on substrate, and is arranged on lining
The scattering object positioned at micro-loop left/right on bottom.
According to non-Hermitian quantum mechanics, its Hamiltonian of open quantized system has the characteristic of non-Hermitian, i.e. Hamilton
The non-Hermitian conjugate of nondiagonal element of matrix, if nondiagonal element is real number, it is unequal that non-hermiticity shows as nondiagonal element.This
Kind system still has complete real energy eigenvalues under specific potential-energy function.Due to optics holography equation and Xue Ding
The similitude of straightforward words equation, can simulate this quantum appearance with optical system.In integrated photonics system, with Hamiltonian
What nondiagonal element characterized in the s-matrix of corresponding reflection system optics change procedure is system to different directions incident optical signal
Reflectivity.In the integrated photonics system for having gain or loss or both to have concurrently, under specific index distribution, it is
System still has complete real frequency spectrum, and s-matrix has non-hermiticity, therefore reflection of the system to different directions incident optical signal
Rate is unequal, i.e., asymmetrical reflection.
The system being made of micro-loop and upload straight wave guide, download straight wave guide can be considered as closure when being in Critical Coupling state
System, its s-matrix are Hermitians, and micro-loop has identical reflection for the pattern of two kinds of counter-propagates clockwise and anticlockwise
Rate, and reflectivity is 0 under perfect state.When introducing scattering object in the outside of micro-loop, scattering object can significantly increase micro-loop
Loss, at this time system there is non-hermiticity, adjusting the parameter of scattering object can cause micro-loop for clockwise and anticlockwise two
The pattern of kind counter-propagate has different reflectivity, i.e. asymmetric reflective, and list can be realized under suitable scattering object parameter
To unreflected optical transport.
This micro-loop optical transmission apparatus proposed by the present invention can realize the asymmetric reflective of optical transport, break reflection
Reciprocity, realizes one of two big requirements of optical invisible.In addition, side of the structure for control optical transport in integrated photonics
To having great importance, it can be integrated as a kind of new non-reciprocal device realized using asymmetric reflective
The available solutions of isolator, circulator etc. in photonic propulsion.Further, since structure is extremely simple, and COMS process compatibles, so device
Part is easily integrated, and production cost is low, has larger market potential.
Preferably, the coupling uploaded between straight wave guide, download straight wave guide and micro-loop is at or approximately at Critical Coupling state.
Preferably, the loss of micro-loop should be as low as possible, and the side wall of the micro-loop should be as smooth as possible.
Preferably, the size of the scattering object in a quarter resonance wavelength between resonance wavelength.
Preferably, straight wave guide is uploaded, download the width of straight wave guide and micro-loop and should can highly make more than 90% light field
Energy transmits in the waveguide.
Preferably, the refractive index of the substrate is less than micro-loop, upload straight wave guide, download straight wave guide, the refractive index of scattering object.
Preferably, the material of the substrate is silica, and micro-loop, upload straight wave guide, download straight wave guide, the material of scattering object
Expect for silicon nitride or silicon.
Meanwhile present invention also offers the preparation method of more than one devices, its particular content are as follows：
S1. certain thickness light waveguide-layer is grown on substrate；
S2. the spin coating photoresist on light waveguide-layer, then carries out graph exposure and development obtains mask pattern；
S3. performed etching according to mask pattern, obtain the structure being made of light waveguide-layer, photoresist is removed, obtain micro-loop light
Transmission apparatus.
Compared with prior art, the advantages of the present invention are：
Non- Hermiticity of the micro-loop optical transmission apparatus of asymmetric reflective provided by the invention based on open optical system, Ke Yishi
The asymmetric reflective optical transport of existing micro-loop system.Under suitable scattering object parameter, it might even be possible to reach unidirectional unreflected effect
Fruit.The device has asymmetric reflective extinction ratio height, easy to process, the characteristics of being easily integrated, has the application prospect of height.
Brief description of the drawings
Fig. 1 is the front schematic view of device.
Fig. 2 is the schematic cross-section of device.
Fig. 3 for no scattering object when micro-loop numerical simulation result figure.
Fig. 4 is that there are the numerical simulation result figure of micro-loop during scattering object.
Fig. 5 is the preparation flow figure of device.
Embodiment
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention easy to understand, with reference to
The drawings and specific embodiments, how the present invention is further explained implements.
As shown in Figure 1, 2, the micro-loop optical transmission apparatus of asymmetric reflective provided by the invention includes substrate, is arranged on substrate
On micro-loop, the upload straight wave guide on rear side of the micro-loop on substrate is set, set on substrate on front side of micro-loop
Straight wave guide is downloaded, and the scattering object positioned at micro-loop left/right on substrate is set.In Fig. 1,1 is substrate, and 2 be upload
Straight wave guide, 3 is download straight wave guide, and 4 be micro-loop, and 5 be scattering object.
Fig. 3 for no scattering object when micro-loop numerical simulation result figure, numerical simulation the result shows that, it is micro- during no scattering object
Either the reflection of pattern is all very weak clockwise or counterclockwise in ring, is similar to areflexia and both are of substantially equal, say
It is bright at this time, the reflection of micro-loop is symmetrical.Fig. 4 is that there are the numerical simulation result figure of micro-loop during scattering object, the knot of numerical simulation
Fruit shows, when, there are during the scattering object of certain parameter, the reflection in one of direction can be significantly enhanced, such as Fig. 4 institutes in micro-loop
Show, the reflection enhancement of clockwise mode is close to ten times, and anticlockwise reflection is held essentially constant, and is similar to without anti-
Penetrate, i.e. the reflection of micro-loop at this time has obvious asymmetry, is similar to have unidirectional unreflected property.
Meanwhile present invention also offers the preparation method of more than one devices, such as Fig. 5（a）、（b）、（c）It is shown, its technique
Process step is as follows：
S1. certain thickness light waveguide-layer is grown on substrate；
S2. the spin coating photoresist on light waveguide-layer, then carries out graph exposure and development obtains mask pattern；
S3. performed etching according to mask pattern, obtain the structure being made of light waveguide-layer, photoresist is removed, obtain micro-loop light
Transmission apparatus.
Finally illustrate, the foregoing is merely the embodiment of the present invention, is not intended to limit the scope of the invention, every
The equivalent structure or equivalent flow shift made using description of the invention and accompanying drawing content, is directly or indirectly used in other
Relevant technical field, is included within the scope of the present invention.
Claims (7)
- A kind of 1. micro-loop optical transmission apparatus of asymmetric reflective, it is characterised in that：Including substrate, set micro-loop on substrate, The upload straight wave guide on rear side of micro-loop on substrate is set, the straight ripple of download on front side of micro-loop on substrate is set Lead, and the scattering object positioned at micro-loop left/right on substrate is set.
- 2. the micro-loop optical transmission apparatus of asymmetric reflective according to claim 1, it is characterised in that：It is described to upload straight ripple Lead, download coupling between straight wave guide and micro-loop at or approximately at Critical Coupling state.
- 3. the micro-loop optical transmission apparatus of asymmetric reflective according to claim 1 or 2, it is characterised in that：The micro-loop Side wall is smooth.
- 4. the micro-loop optical transmission apparatus of asymmetric reflective according to claim 3, it is characterised in that：The ruler of the scattering object It is very little in a quarter resonance wavelength between resonance wavelength.
- 5. the micro-loop optical transmission apparatus of asymmetric reflective according to claim 3, it is characterised in that：The refraction of the substrate Rate is less than micro-loop, upload straight wave guide, download straight wave guide, the refractive index of scattering object.
- 6. the micro-loop optical transmission apparatus of asymmetric reflective according to claim 5, it is characterised in that：The material of the substrate For silica, micro-loop, upload straight wave guide, download straight wave guide, the material of scattering object are silicon nitride or silicon.
- 7. a kind of preparation method of micro-loop optical transmission apparatus according to any one of claim 1 ~ 6 asymmetric reflective, it is special Sign is：Include following steps：S1. certain thickness light waveguide-layer is grown on substrate；S2. the spin coating photoresist on light waveguide-layer, then carries out graph exposure and development obtains mask pattern；S3. performed etching according to mask pattern, obtain the structure being made of light waveguide-layer, photoresist is removed, obtain micro-loop light Transmission apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711285335.2A CN108037563A (en) | 2017-12-07 | 2017-12-07 | A kind of micro-loop optical transmission apparatus of asymmetric reflective and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711285335.2A CN108037563A (en) | 2017-12-07 | 2017-12-07 | A kind of micro-loop optical transmission apparatus of asymmetric reflective and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108037563A true CN108037563A (en) | 2018-05-15 |
Family
ID=62096192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711285335.2A Pending CN108037563A (en) | 2017-12-07 | 2017-12-07 | A kind of micro-loop optical transmission apparatus of asymmetric reflective and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108037563A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873176A (en) * | 2018-06-12 | 2018-11-23 | 东南大学 | A kind of close-coupled three-dimensional Wavelength division multiplexer/demultiplexer and implementation method |
| CN109253836A (en) * | 2018-10-18 | 2019-01-22 | 武汉大学 | A kind of micro-loop optical vacuum meter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101573658A (en) * | 2006-12-27 | 2009-11-04 | 3M创新有限公司 | Optical microresonator |
| CN103941345A (en) * | 2014-05-06 | 2014-07-23 | 苏州大学 | Two-dimensional stratified material based SOI (Semicon-on-insulator) base micro loop filter |
| CN104133270A (en) * | 2014-07-18 | 2014-11-05 | 南京大学 | On-chip tunable optical isolator based on active-passive optical micro cavity coupling system |
| CN105652378A (en) * | 2016-01-22 | 2016-06-08 | 南京大学 | Optical circulator |
| CN106199837A (en) * | 2016-07-27 | 2016-12-07 | 电子科技大学 | A kind of Graphene mid-infrared light router based on fluoride waveguide or chalcogenide glass waveguide |
-
2017
- 2017-12-07 CN CN201711285335.2A patent/CN108037563A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101573658A (en) * | 2006-12-27 | 2009-11-04 | 3M创新有限公司 | Optical microresonator |
| CN103941345A (en) * | 2014-05-06 | 2014-07-23 | 苏州大学 | Two-dimensional stratified material based SOI (Semicon-on-insulator) base micro loop filter |
| CN104133270A (en) * | 2014-07-18 | 2014-11-05 | 南京大学 | On-chip tunable optical isolator based on active-passive optical micro cavity coupling system |
| CN105652378A (en) * | 2016-01-22 | 2016-06-08 | 南京大学 | Optical circulator |
| CN106199837A (en) * | 2016-07-27 | 2016-12-07 | 电子科技大学 | A kind of Graphene mid-infrared light router based on fluoride waveguide or chalcogenide glass waveguide |
Non-Patent Citations (2)
| Title |
|---|
| ZHUOHUI YANG,ZENGKAI SHAO等: "Asymmetric backscattering of a SiNx microring resonator with a mie scatterer", 《2017 ASIA COMMUNICATIONS AND PHOTONICS CONFERENCE (ACP)》 * |
| ZHUOHUI YANG等: "Chirality and directional emission of a SiNx-based microring resonator with position controllable scatters", 《2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR)》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873176A (en) * | 2018-06-12 | 2018-11-23 | 东南大学 | A kind of close-coupled three-dimensional Wavelength division multiplexer/demultiplexer and implementation method |
| CN109253836A (en) * | 2018-10-18 | 2019-01-22 | 武汉大学 | A kind of micro-loop optical vacuum meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104965319B (en) | Parallel magnetic controlled plasma terahertz wave of photon crystal modulator and modulator approach | |
| CN101788727B (en) | Photonic crystal four-port circulator based on magneto-optical cavity coupling | |
| CN103885267B (en) | Three wavelength terahertz wave modulator and the modulator approaches based on triple lattice photonic crystals | |
| US10178735B1 (en) | Dynamically tunable materials for parity-time symmetric electro-optical devices | |
| CN104932119B (en) | Vertical magnetic control plasma photon crystal terahertz wave modulator and modulator approach | |
| CN103018832B (en) | Polarization beam splitter | |
| US20170176782A1 (en) | Broadband three-port optical circulator with introduced triangular-guide column | |
| Fasihi | High-contrast all-optical controllable switching and routing in nonlinear photonic crystals | |
| CN103048735B (en) | Surface plasma wave demultiplexer based on destructive interference | |
| CN108037563A (en) | A kind of micro-loop optical transmission apparatus of asymmetric reflective and preparation method thereof | |
| CN104483764B (en) | A kind of defect magnetic photonic crystal and purposes with nonreciprocity characteristic | |
| Hu et al. | Multiwavelength magnetic-free optical isolator by optical pumping in warm atoms | |
| CN108693602A (en) | A kind of three-dimensionally integrated more microcavity resonator, filter devices of silicon nitride and preparation method thereof | |
| CN106873077A (en) | A kind of silicon substrate TE mould analyzers based on asymmetrical directional coupler | |
| CN104049303A (en) | Adjustable optical resonance device and modulation method of adjustable optical resonance device | |
| CN106959163A (en) | A kind of TE mould analyzers based on symmetrical three guide directional couplers structure | |
| CN106873076A (en) | A kind of grating coupler and preparation method thereof | |
| CN104076439A (en) | Waveguide and preparation method thereof | |
| TW546496B (en) | Directional coupler and logic device based thereon, light transfer device/component, device for transmitting photons and multi-port light transfer device using the same, method of transmitting a light through the device for transmitting photons | |
| CN105137692B (en) | The speed optical device of micro-ring resonant cavity based on grating | |
| CN207543121U (en) | Silicon substrate based on coupled polarization beam splitter integrates quantum key distribution chip structure | |
| CN106680933A (en) | Transversely asymmetrical non-reflective periodic waveguide micro-cavity bandpass filter | |
| CN208569082U (en) | A kind of mixing phasmon waveguide bragg grating Polarization filter | |
| Zhang et al. | Theoretical design and analysis of multichannel plasmonic switch based on triangle resonator combined with silver bar | |
| Ye et al. | Inverse design of a SOI T-junction polarization Beamsplitter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180515 |