CN209070125U - A kind of temperature regulation mode filter - Google Patents
A kind of temperature regulation mode filter Download PDFInfo
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- CN209070125U CN209070125U CN201822045667.XU CN201822045667U CN209070125U CN 209070125 U CN209070125 U CN 209070125U CN 201822045667 U CN201822045667 U CN 201822045667U CN 209070125 U CN209070125 U CN 209070125U
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- metal
- temperature
- sensitive material
- mode filter
- material layer
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Abstract
The utility model relates to a kind of temperature to regulate and control mode filter, including metal-dielectric-metal waveguide and ring resonator, and ring resonator is made of centrally located metal dish, the annular heat-sensitive material layer around metal dish and toroidal cavity.When the temperature varies, the radius of annular thermo-sensitive material changes, and reduces the width of toroidal cavity, to change the effective refractive index of toroidal cavity, and then changes the resonance wavelength of filter, realizes temperature regulation mode filter.The filter has the advantages that high sensitivity.
Description
Technical field
The utility model relates to photoelectron technical fields, and in particular to a kind of temperature regulation mode filter.
Background technique
Due to the limitation of diffraction limit, traditional optical signal transmission mode cannot achieve Sub-Wavelength Design, and conventional transmission
Coupling between line is larger, and it is integrated to affect opto-electronic device.
Surface plasmon waveguide structure is to be breached tradition based on the novel waveguide structure of surface phasmon design and spread out
Emitter-base bandgap grading limit is the important research direction in photoelectron research.
Filter is the important component of integrated device, for temperature adjustable filter, is usually become using temperature
Change the perimeter change for leading to resonant cavity, the filtering performance adjustability of filter is poor.
Summary of the invention
In view of the above-mentioned problems, the utility model provides a kind of temperature regulation mode filter, including metal-dielectric-metal
Waveguide and ring resonator, metal-dielectric-metal waveguide are not connected to ring resonator, and ring resonator is by centrally located
Metal dish, the annular heat-sensitive material layer around metal dish, the toroidal cavity around annular heat-sensitive material layer are constituted.
Further, the metal-dielectric-metal waveguide is at a distance from ring resonator less than 100 nanometers.
Further, the material of the annular heat-sensitive material layer is thermal expansion material.
Further, the annular heat-sensitive material layer is parallel to two parts that wave guide direction symmetrically separates by edge and forms.
Further, the thickness of the annular heat-sensitive material layer of the close metal-dielectric-metal waveguide side is less than separate
The thickness of the annular heat-sensitive material layer of metal-dielectric-metal waveguide side.
Further, the material of the annular heat-sensitive material layer is the material of thermotropic variations in refractive index.
The utility model has the beneficial effects that this temperature provided by the utility model regulates and controls mode filter, thermo-sensitive material exists
In resonant cavity, annular is set to the side of resonant cavity width direction, and temperature, which changes, will lead to changing for effective refractive index in resonant cavity
Becoming, rather than changes the length of resonant cavity, the minor alteration of thermo-sensitive material all will seriously change the effective refractive index of resonant cavity,
So the temperature regulation mode filter proposed in the utility model is more sensitive to the change of temperature.
The utility model is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is temperature regulation type filter schematic one.
In figure: 1, metal-dielectric-metal waveguide；2, metal dish；3, annular heat-sensitive material layer；4, toroidal cavity.
Specific embodiment
Reach the technical means and efficacy that predetermined purpose is taken for the utility model is further described, below in conjunction with attached drawing
And embodiment, to specific embodiment of the present utility model, structure feature and its effect, detailed description are as follows.
Embodiment 1
In order to improve sensibility of the filtering characteristic to temperature of resonant cavity, the utility model provides a kind of as shown in Figure 1
Temperature regulate and control mode filter, which includes metal-dielectric-metal waveguide 1 and ring resonator, metal-dielectric-metal
Waveguide is not connected to ring resonator, and ring resonator is by centrally located metal dish 2, the annular temperature-sensitive material of circular metal dish 2
The bed of material 3, the composition of toroidal cavity 4 around annular heat-sensitive material layer 3, that is, form annular heat-sensitive material layer 3 and be set to annular
The effect of resonant cavity width side.Metal-dielectric-metal waveguide 1 at a distance from ring resonator less than 100 nanometers, with enhancing
Filter action of the ring resonator to the surface phasmon in metal-dielectric-metal waveguide 1, realizes stronger filter effect.
The material of annular heat-sensitive material layer 3 is thermal expansion material, and when promoting temperature, the thickness of thermal expansion material increases, and leads to annular
The thickness of cavity 4 reduces, and reduces so as to cause the mode sizes of surface phasmon in toroidal cavity 4, ring resonator has
It imitates refractive index to increase, to change the filtering characteristic of filter.The design changes ring resonator using thermal expansion material
Effective refractive index, rather than change the perimeter of ring resonator, so the movement to resonant wavelength is more, regulate and control sensitiveer.
Embodiment 2
On the basis of embodiment 1, annular heat-sensitive material layer 3 is parallel to two parts group that wave guide direction symmetrically separates by edge
At the annular heat-sensitive material layer 3 of separation can make to form two kinds of resonance paths in ring resonator, be formed dependent on two kinds of resonance
Temperature regulation mode filter is better achieved in multiple resonant wavelengths in path；And close to 1 side of metal-dielectric-metal waveguide
Annular heat-sensitive material layer 3 thickness be less than far from 1 side of metal-dielectric-metal waveguide annular heat-sensitive material layer 3 thickness
Degree, the surface phasmon be conducive in metal-dielectric-waveguide 1 are more coupled in resonant cavity.
Embodiment 3
The material of annular heat-sensitive material layer 3 is the material of thermotropic variations in refractive index, and temperature change will change in toroidal cavity 4
The refractive index of side realizes the temperature regulation type filter based on another mechanism to change the effective refractive index of toroidal cavity 4
Wave device.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (6)
1. a kind of temperature regulates and controls mode filter, including metal-dielectric-metal waveguide (1) and ring resonator, metal-dielectric-gold
Belong to waveguide (1) to be not connected to ring resonator, it is characterised in that: the ring resonator is by centrally located metal dish (2), ring
Annular heat-sensitive material layer (3) around metal dish (2), the toroidal cavity (4) around annular heat-sensitive material layer (3) are constituted.
2. temperature as described in claim 1 regulates and controls mode filter, it is characterised in that: the metal-dielectric-metal waveguide (1)
With at a distance from ring resonator less than 100 nanometers.
3. temperature as claimed in claim 2 regulates and controls mode filter, it is characterised in that: the material of the annular heat-sensitive material layer (3)
Material is thermal expansion material.
4. temperature as claimed in claim 3 regulates and controls mode filter, it is characterised in that: the annular heat-sensitive material layer (3) is by edge
It is parallel to two parts composition that wave guide direction symmetrically separates.
5. temperature as claimed in claim 4 regulates and controls mode filter, it is characterised in that: close to the metal-dielectric-metal waveguide
(1) thickness of the annular heat-sensitive material layer (3) of side is less than the annular temperature-sensitive material far from metal-dielectric-metal waveguide (1) side
The thickness of the bed of material (3).
6. temperature as described in claim 1 regulates and controls mode filter, it is characterised in that: the material of the annular heat-sensitive material layer (3)
Material is the material of thermotropic variations in refractive index.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822045667.XU CN209070125U (en) | 2018-12-07 | 2018-12-07 | A kind of temperature regulation mode filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822045667.XU CN209070125U (en) | 2018-12-07 | 2018-12-07 | A kind of temperature regulation mode filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209070125U true CN209070125U (en) | 2019-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822045667.XU Expired - Fee Related CN209070125U (en) | 2018-12-07 | 2018-12-07 | A kind of temperature regulation mode filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN209070125U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749946A (en) * | 2019-12-06 | 2020-02-04 | 陕西师范大学 | Metal-medium-metal based enhanced absorption structures, devices and systems |
| CN110763356A (en) * | 2019-11-18 | 2020-02-07 | 西安柯莱特信息科技有限公司 | Temperature detector and system based on optical fiber waveguide structure |
| CN111982350A (en) * | 2020-08-31 | 2020-11-24 | 西安柯莱特信息科技有限公司 | Waveguide temperature sensor |
-
2018
- 2018-12-07 CN CN201822045667.XU patent/CN209070125U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763356A (en) * | 2019-11-18 | 2020-02-07 | 西安柯莱特信息科技有限公司 | Temperature detector and system based on optical fiber waveguide structure |
| CN110763356B (en) * | 2019-11-18 | 2021-09-07 | 辽宁凌源钢达集团仪器仪表有限公司 | Temperature detector and system based on optical fiber waveguide structure |
| CN110749946A (en) * | 2019-12-06 | 2020-02-04 | 陕西师范大学 | Metal-medium-metal based enhanced absorption structures, devices and systems |
| CN111982350A (en) * | 2020-08-31 | 2020-11-24 | 西安柯莱特信息科技有限公司 | Waveguide temperature sensor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190705 Termination date: 20191207 |