CN206788417U - A kind of photoswitch - Google Patents
A kind of photoswitch Download PDFInfo
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- CN206788417U CN206788417U CN201720475108.5U CN201720475108U CN206788417U CN 206788417 U CN206788417 U CN 206788417U CN 201720475108 U CN201720475108 U CN 201720475108U CN 206788417 U CN206788417 U CN 206788417U
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- 239000013307 optical fiber Substances 0.000 claims abstract description 98
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910021389 graphene Inorganic materials 0.000 claims description 7
- 230000008033 biological extinction Effects 0.000 abstract description 15
- 230000035945 sensitivity Effects 0.000 abstract description 11
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- 230000033228 biological regulation Effects 0.000 description 10
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- 238000005859 coupling reaction Methods 0.000 description 5
- 238000010606 normalization Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
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Abstract
The utility model embodiment discloses a kind of photoswitch.Photoswitch includes micro-cavity structure, micro optical fiber structure, at least one layer of light absorptive film and adjustment structure；Adjustment structure is connected with micro-cavity structure, micro optical fiber structure and light absorptive film, adjusts the distance between light absorptive film and micro-cavity structure, micro optical fiber structure and micro-cavity structure；Micro-cavity structure is set in a ring, the direction of plane is oppositely arranged with micro-cavity structure where light absorptive film along the micro-cavity structure perpendicular to annular, coupled with micro-cavity structure, according to the distance between with micro-cavity structure, control the couple state between micro optical fiber structure and micro-cavity structure；Micro optical fiber structure is planar oppositely arranged positioned at the micro-cavity structure of annular with micro-cavity structure, is coupled with micro-cavity structure, according to the couple state between micro-cavity structure, controls the on off state of photoswitch.By the technical solution of the utility model, the switching function of photoswitch is realized, and the photoswitch formed is easily integrated, extinction ratio is big and high sensitivity.
Description
Technical field
The utility model embodiment is related to optical technical field, more particularly to a kind of photoswitch.
Background technology
Photoswitch is a kind of optical component with one or more optional transmission ports, and its effect is to optical transport
Optical signal in circuit or integrated optical circuit carries out physics switching or logical operation.Photoswitch leads in optical information processing system, optical fiber
Had a wide range of applications in letter and sensing and precision optics measuring system.With the fast development of integrated photonics, to can
Realize that the demand of the photon chip of the functions such as optical storage on piece, optic communication, light modulation is more and more urgent, photoswitch is exactly wherein to close
The element of key.
What application was wide at present is traditional mechanical optical switch, and light is directly coupled into output by moving fiber
End, using transmitting mirror or prism switching-over light path, light is reflected or is directly sent to output end.But the volume of mechanical optical switch is inclined
Greatly, it is not easy to make large-scale optical switch matrix, and the problem of poor repeatability and rebound shake is also present, causes mechanical optical switch
It is difficult in adapt to following high speed, the growth requirement of Large Copacity optical transport.
Utility model content
In view of this, the utility model embodiment provides a kind of photoswitch, solves the presence of tradition machinery formula photoswitch
Difficulty it is integrated low with sensitivity the problem of, the coupled system that utilizes micro-cavity structure, micro optical fiber structure and light absorptive film to form, reality
Photoswitch is showed, and the photoswitch is easily integrated, extinction ratio is big and high sensitivity.
The utility model embodiment provides a kind of photoswitch, including：
Micro-cavity structure, micro optical fiber structure, at least one layer of light absorptive film and adjustment structure；
The adjustment structure is connected with the micro-cavity structure, the micro optical fiber structure and the light absorptive film respectively, is used
In regulation the distance between the light absorptive film and the micro-cavity structure, and the micro optical fiber structure and the micro-cavity structure
The distance between；
The micro-cavity structure is set in a ring, flat where the light absorptive film along the micro-cavity structure perpendicular to annular
The direction in face, be oppositely arranged with the micro-cavity structure, and coupled with the micro-cavity structure, for according to and the micro-cavity structure it
Between distance, control the couple state between the micro optical fiber structure and the micro-cavity structure；
The micro optical fiber structure is located at the micro-cavity structure institute of annular planar, relative with the micro-cavity structure to set
Put, and coupled with the micro-cavity structure, for basis and the couple state between the micro-cavity structure, control the photoswitch
On off state.
Further, the light absorptive film includes graphene film.
Further, the scope of the diameter of the micro optical fiber structure is [0.5 μm -2 μm].
Further, the diameter of the light absorptive film is more than the full diameter of the micro-cavity structure.
Further, the distance between the light absorptive film and the micro-cavity structure scope are [0 μm -3 μm].
Further, the distance between the micro optical fiber structure and the micro-cavity structure scope are [0 μm -2 μm].
Further, the wave-length coverage [0.5 μm -2 μm] of the photoswitch work.
The utility model embodiment provides a kind of photoswitch, by setting photoswitch to include micro-cavity structure, micro optical fiber knot
Structure, at least one layer of light absorptive film and adjustment structure, set adjustment structure respectively with micro-cavity structure, micro optical fiber structure and extinction
Property film connection, regulation the distance between light absorptive film and micro-cavity structure, and micro optical fiber structure and micro-cavity structure between
Distance；Micro-cavity structure is set to set in a ring, the direction of plane, and micro- where light absorptive film along the micro-cavity structure perpendicular to annular
Cavity configuration is oppositely arranged, and is coupled with micro-cavity structure, and according to the distance between with micro-cavity structure, controls micro optical fiber structure and microcavity
Couple state between structure；Micro optical fiber structure is set to be located at annular micro-cavity structure institute planar, it is relative with micro-cavity structure to set
Put, coupled with micro-cavity structure, and according to the couple state between micro-cavity structure, control the on off state of photoswitch.Pass through
The distance between light absorptive film and micro-cavity structure are adjusted, adjusts the couple state between micro optical fiber and micro-cavity structure, Jin Ershi
The switching function of existing photoswitch, the photoswitch of formation are easily integrated, and extinction ratio is big and high sensitivity.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used does one and simply introduced in description of the prior art, it should be apparent that, drawings in the following description are
Some embodiments of the utility model, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation for photoswitch that the utility model embodiment one provides；
Fig. 2 is the cross-sectional view in the AA ' directions along Fig. 1；
Fig. 3 is the quality factor of micro-cavity structure with the distance between light absorptive film and micro-cavity structure variation diagram；
Fig. 4 is that the drift value of the resonance wavelength of micro-cavity structure changes with the distance between light absorptive film and micro-cavity structure
Figure；
Fig. 5 is that the normalization light power output of micro optical fiber structure changes with time figure；
Fig. 6 is a kind of schematic flow sheet of the control method for photoswitch that the utility model embodiment two provides.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, implement hereinafter with reference to the utility model
Accompanying drawing in example, clearly and completely describes the technical solution of the utility model, it is clear that described implementation by embodiment
Example is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, this area
The every other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to the utility model
The scope of protection.
Embodiment one
Fig. 1 is a kind of structural representation for photoswitch that the utility model embodiment one provides, and Fig. 2 is the AA ' sides along Fig. 1
To cross-sectional view.With reference to Fig. 1 and Fig. 2, photoswitch includes micro-cavity structure 10, micro optical fiber structure 11, at least one layer of suction
Photosensitiveness film 12 and adjustment structure (not shown).
Wherein, adjustment structure (not shown) is connected with micro-cavity structure 10, micro optical fiber structure 11 and light absorptive film 12 respectively,
The distance between light absorptive film 12 and micro-cavity structure 10 can be adjusted, and between micro optical fiber structure 11 and micro-cavity structure 10
Distance.Exemplary, adjustment structure can be accurate mobile console, can be respectively by micro-cavity structure 10, micro optical fiber structure 11
And micro-cavity structure 10 is fixed on different accurate mobile consoles, by each accurate mobile console of movement, realize to micro-
The accurate adjustment of distance between optical fiber structure 11 and micro-cavity structure 10, and light absorptive film 12 and micro-cavity structure 10.
Micro-cavity structure 10 is set in a ring, side of the light absorptive film 12 along the place plane of micro-cavity structure 10 perpendicular to annular
To, it is oppositely arranged with micro-cavity structure 10, and coupled with micro-cavity structure 10, for according to the distance between with micro-cavity structure 10, control
Couple state between micro optical fiber structure 11 processed and micro-cavity structure 10.Where micro-cavity structure 10 of the micro optical fiber structure 11 positioned at annular
In plane, it is oppositely arranged with micro-cavity structure 10, and is coupled with micro-cavity structure 10, for basis and the coupling between micro-cavity structure 10
State, control the on off state of photoswitch.Exemplary, micro-cavity structure 10 can be the micro-loop core cavity of echo wall type, can also
It is micro- disk chamber of echo wall type.
Exemplary, coupled between micro optical fiber structure 11 and micro-cavity structure 10, i.e., can carry out the biography of energy therebetween
Pass, micro optical fiber structure 11 and micro-cavity structure 10 can be adjusted by adjusting the distance between micro optical fiber structure 11 and micro-cavity structure 10
Between couple state.The light input end input energy of micro optical fiber structure 11, when the energy in micro optical fiber structure 11 can be whole
When being coupled into micro-cavity structure 10, the power of the light output end of micro optical fiber structure 11 reaches minimal power values, now micro optical fiber structure
Proper couple state, the state of the pass of corresponding photoswitch are between 11 and micro-cavity structure 10.
When micro optical fiber structure 11 and micro-cavity structure 10 are in proper couple state, the energy whole coupling in micro optical fiber structure 11
Close into micro-cavity structure 10.But the portion of energy that annular micro-cavity structure 10 can be limited inside micro-cavity structure 10 is in micro-
Inside cavity configuration 10, other part energy can then enter the outside of micro-cavity structure 10, because light absorptive film 12 has one
Fixed extinction characteristic, by adjusting the distance between light absorptive film 12 and micro-cavity structure 10, micro-cavity structure 10 can be adjusted
Parameter.
Fig. 3 be the quality factor of micro-cavity structure with the distance between light absorptive film and micro-cavity structure variation diagram, Fig. 4 is micro-
The drift value of the resonance wavelength of cavity configuration is with the distance between light absorptive film and micro-cavity structure variation diagram.Specifically, with reference to Fig. 3
And Fig. 4, when the distance between light absorptive film 12 and micro-cavity structure 10 farther out when, ginseng of the light absorptive film 12 to micro-cavity structure 10
Number hardly has an impact.As the distance between light absorptive film 12 and micro-cavity structure 10 are increasingly nearer, light absorptive film
12 can have an impact to the quality factor of micro-cavity structure 10 with resonance wavelength.Because light absorptive film 12 has certain extinction
Characteristic, when light absorptive film 12 is close to micro-cavity structure 10, the quality factor of micro-cavity structure 10 is caused to decline, resonance wavelength occurs
Drift, the couple state between the micro optical fiber structure 11 in proper couple state and micro-cavity structure 10 changes originally, low-light
Proper couple state, the portion of energy of the light input end of micro optical fiber structure 11 input are no longer between fine structure 11 and micro-cavity structure 10
It can be exported by the output end of micro optical fiber structure 11, the state opened of corresponding photoswitch., can be by adjusting light absorptive with this
The distance between film 12 and micro-cavity structure 10, realize the tune to couple state between micro optical fiber structure 11 and micro-cavity structure 10
Section, and then realize the control to the switching function of photoswitch.
Fig. 5 is that the normalization light power output of micro optical fiber structure changes with time figure, as shown in figure 5, ordinate normalizing
Change the value after the power normalization of the light output end of optical output power expression micro optical fiber structure 11.For example, micro optical fiber structure 11
The power of light input end is 2W, and the power of the light output end of micro optical fiber structure 11 is 0.1W, then light output after ordinate normalization
The value of power is 0.1/2.By adjusting the spacing between light absorptive film 12 and micro-cavity structure 10, from figure 5 it can be seen that micro-
The normalization light power output of optical fiber structure 11 changes between 0 and 1.When ordinate reaches minimum value in Fig. 5, now extinction
Property film 12 apart from the distant of micro-cavity structure 10, state that corresponding photoswitch closes；When ordinate reaches maximum, now
Light absorptive film 12 is closer to the distance apart from micro-cavity structure 10, the state opened of corresponding photoswitch, that is, realizes opening for photoswitch
Close function, the regulation to the distance between light absorptive film 12 and micro-cavity structure 10, with the open state of photoswitch and off status
Conversion synchronization.
Optionally, light absorptive film 12 can be graphene film.Graphene film has certain extinction characteristic, works as stone
When the distance between black alkene film and micro-cavity structure 10 are nearer, there are product of the graphene film to micro-cavity structure 10 of extinction characteristic
Prime factor and resonance wavelength have an impact, and then influence the couple state between micro optical fiber structure 11 and micro-cavity structure 10.
Optionally, micro-cavity structure 10 can be the micro-cavity structure 10 of echo wall type, and the micro-cavity structure 10 of echo wall type has
Higher quality factor, such as the scope of the quality factor of the micro-cavity structure 10 of echo wall type can be [104-108], i.e. echo
The quality factor of the micro-cavity structure 10 of wall type may have the change of four orders of magnitude.Because micro-cavity structure 10 has higher product
Prime factor, when adjusting the distance between light absorptive film 12 and micro-cavity structure 10, light absorptive film 12 enables to micro-cavity structure
10 quality factor declines, and quality factor declines by a big margin, and is advantageous to the realization of the switching function of photoswitch, while can
Improve the sensitivity of photoswitch.
Optionally, the scope of the diameter of micro optical fiber structure 11 can be [0.5 μm -2 μm].Due to micro optical fiber structure 11 with it is micro-
Couple state between the distance between cavity configuration 10 influence micro optical fiber structure 11 and micro-cavity structure 10, and micro optical fiber structure 11
Diameter can have an impact to the distance between micro optical fiber structure 11 and micro-cavity structure 10, and the diameter of micro optical fiber structure 11 is excessive or mistake
It is small to influence to adjust the distance between micro optical fiber structure 11 and micro-cavity structure 10, with the accurate of regulation couple state therebetween
Property.Optionally, micro optical fiber structure 11 includes light input end and light output end, and the ratio of the power of light output end and light input end can
With more than 95:100.Exemplary, if the light of the input input 1W in micro optical fiber structure 11, in micro optical fiber structure 11
Output end can receive the light more than 0.95W, i.e., the loss of optical transport is less than 5% in micro optical fiber structure 11.If low-light
The loss of fine structure 11 is excessive, then a big chunk light of the input input of micro optical fiber structure 11 is by micro optical fiber structure 11 itself
Loss, cause the extinction ratio of micro optical fiber structure 11 to decline, and then cause using micro optical fiber structure 11 formation photoswitch it is sensitive
Degree reduces.
Optionally, as shown in Fig. 2 the diameter D2 of light absorptive film 12 can be more than the full diameter D1 of micro-cavity structure 10.By
The quality factor and resonance wavelength of micro-cavity structure 10 can be had an impact in the light absorptive film 12 with certain extinction characteristic,
And as light absorptive film 12 is to the close of micro-cavity structure 10, the quality factor decline of micro-cavity structure 10, resonance wavelength, which produces, floats
Move, and then influence to make the couple state between micro optical fiber structure 11 and micro-cavity structure 10, realize the switching function of photoswitch.Set
The diameter D2 of light absorptive film 12 is more than the full diameter D1 of micro-cavity structure 10, and it is thin to enhance the light absorptive with certain extinction characteristic
Influence of the film 12 to the quality factor and resonance wavelength of micro-cavity structure 10, the distance between light absorptive film 12 and micro-cavity structure 10
Influence to couple state between micro optical fiber structure 11 and micro-cavity structure 10 strengthens, and improves micro-cavity structure 10, micro optical fiber structure
11 and light absorptive film 12 formed photoswitch sensitivity.
Optionally, as shown in Fig. 2 the full diameter D1's of micro-cavity structure 10 may range from [30 μm -300 μm], secondary diameter d
May range from [1 μm -4 μm].Because the diameter that can set light absorptive film 12 is more than the full diameter D1 of micro-cavity structure 10,
The full diameter D1 of micro-cavity structure 10 is bigger, and influence of the light absorptive film 12 to the quality factor and resonance wavelength of micro-cavity structure 10 is got over
Greatly, the sensitivity of photoswitch is higher.In addition, micro-cavity structure 10 can be the micro-cavity structure 10 of echo wall type, if micro-cavity structure 10
Secondary diameter d it is too small, micro-cavity structure 10 is smaller to the restriction effect of light, that is, more light be present into the outer of micro-cavity structure 10
Portion, it can equally strengthen the interaction between light absorptive film 12 and micro-cavity structure 10, to improve the sensitivity of photoswitch.Can
Choosing, can also be mutual between regulation light absorptive film 12 and micro-cavity structure 10 by setting the number of plies of light absorptive film 12
Effect.The number of plies of light absorptive film 12 is more, and its effect to micro-cavity structure 10 is stronger, by adjust light absorptive film 12 with it is micro-
The distance between cavity configuration 10, it is sensitiveer to micro optical fiber structure 11 and the regulation of the couple state of micro-cavity structure 10, equally enhance
The sensitivity of photoswitch.
Optionally, the distance between light absorptive film 12 and micro-cavity structure 10 scope can be [0 μm -3 μm], micro optical fiber knot
The distance between structure 11 and micro-cavity structure 10 scope can be [0 μm -2 μm].Adjust light absorptive film 12 and micro-cavity structure 10
The distance between change in the range of [0 μm -3 μm], the distance between regulation micro optical fiber structure 11 and micro-cavity structure 10 are in [0 μ
M-2 μm] in the range of change, you can the switching function of photoswitch is realized, to micro optical fiber structure 11 or micro-cavity structure 10 or extinction
The displacement of property film 12 is shorter, and the phase response time of the photoswitch of formation is shorter.
Optionally, the wave-length coverage of photoswitch work can be [0.5 μm -2 μm], i.e., be [0.5 μm -2 for wave-length coverage
μm] light, photoswitch can realize its switching function.Exemplary, it is graphene film that can set light absorptive film 12, is set
Micro-cavity structure 10 is that the Echo Wall declines cavity configuration 10, the wave-length coverage for the light that can be absorbed with reference to graphene film, and echo
The resonance wavelength scope of wall type micro-cavity structure 10, photoswitch realize its switching function in the wave-length coverage interior energy of [0.5 μm -2 μm].
It should be noted that the utility model embodiment shows that accompanying drawing is the size of exemplary each element of expression, not
Represent the actual size of each element in photoswitch.
The utility model embodiment is by setting photoswitch to include micro-cavity structure 10, micro optical fiber structure 11, at least one layer of suction
Photosensitiveness film 12 and adjustment structure, set adjustment structure respectively with micro-cavity structure 10, micro optical fiber structure 11 and light absorptive film
The distance between 12 connections, regulation light absorptive film 12 and micro-cavity structure 10, and micro optical fiber structure 11 and micro-cavity structure 10 it
Between distance；Micro-cavity structure 10 is set to set in a ring, light absorptive film 12 is along perpendicular to the annular place plane of micro-cavity structure 10
Direction, be oppositely arranged with micro-cavity structure 10, coupled with micro-cavity structure 10, and according to the distance between with micro-cavity structure 10, control
Couple state between micro optical fiber structure 11 processed and micro-cavity structure 10；Make micro optical fiber structure 11 positioned at the institute of micro-cavity structure 10 of annular
Planar, it is oppositely arranged with micro-cavity structure 10, is coupled with micro-cavity structure 10, and according to the coupling shape between micro-cavity structure 10
State, control the on off state of photoswitch.I.e. by adjusting the distance between light absorptive film 12 and micro-cavity structure 10, low-light is adjusted
Couple state between fine and micro-cavity structure 10, and then realize the switching function of photoswitch.For of the prior art mechanical
Photoswitch, the photoswitch of formation are easily integrated, and extinction ratio is big and high sensitivity.
Embodiment two
On the basis of above-described embodiment, Fig. 6 is a kind of control method for photoswitch that the utility model embodiment provides
Schematic flow sheet, the technical scheme of the present embodiment can be applied in the scene for needing to be controlled photoswitch, can be by this
The photoswitch that utility model embodiment provides performs.This method includes：
S110, regulation the distance between micro optical fiber structure and micro-cavity structure, make between micro optical fiber structure and micro-cavity structure just
Coupling.
Optionally, when the power of the light output end of micro optical fiber structure reaches minimal power values, micro optical fiber structure and microcavity are made
Proper couple state can be reached between structure.Coupled between micro optical fiber structure and micro-cavity structure, i.e., can carry out energy therebetween
The transmission of amount, the light input end input energy of micro optical fiber structure, when the energy in micro optical fiber structure can all be coupled into microcavity
During structure, the power of the light output end of micro optical fiber structure reaches minimal power values, now between micro optical fiber structure and micro-cavity structure
In proper couple state, the state of the pass of corresponding photoswitch.
S120, regulation the distance between light absorptive film and micro-cavity structure, control the on off state of photoswitch.
Optionally, the distance between light absorptive film and micro-cavity structure can be adjusted, with adjust the quality of micro-cavity structure because
Son and resonance wavelength, control the couple state between micro optical fiber structure and micro-cavity structure；According to micro optical fiber structure and micro-cavity structure
Between couple state, the on off state of photoswitch can be controlled.
Specifically, when micro optical fiber structure and micro-cavity structure are in proper couple state, the energy in micro optical fiber all couples
Enter in micro-cavity structure.The portion of energy that the micro-cavity structure of annular can be limited inside micro-cavity structure is in inside micro-cavity structure, separately
Outer portion energy can then enter the outside of micro-cavity structure.By adjusting the distance between light absorptive film and micro-cavity structure,
Can adjust the quality factor and resonance wavelength of micro-cavity structure, and the couple state between micro optical fiber structure and micro-cavity structure by
The influence of the quality factor and resonance wavelength of micro-cavity structure, is also achieved that to the coupling between micro optical fiber structure and micro-cavity structure
The control of state, and then realize the control to the on off state of photoswitch.
The utility model embodiment by adjusting the distance between micro optical fiber structure and micro-cavity structure, make micro optical fiber structure with
Just coupled between micro-cavity structure；By adjusting the distance between light absorptive film and micro-cavity structure, the switch shape of photoswitch is controlled
State, realize the switching function of photoswitch.For mechanical optical switch of the prior art, what the utility model embodiment provided
Photoswitch is easily integrated, and extinction ratio is big and high sensitivity.
Pay attention to, above are only preferred embodiment of the present utility model and institute's application technology principle.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment here, can carry out for a person skilled in the art various obvious
Change, readjust and substitute without departing from the scope of protection of the utility model.Therefore, although by above example to this
Utility model is described in further detail, but the utility model is not limited only to above example, is not departing from this reality
In the case of with new design, other more equivalent embodiments can also be included, and the scope of the utility model is by appended power
Sharp claimed range determines.
Claims (7)
- A kind of 1. photoswitch, it is characterised in that including：Micro-cavity structure, micro optical fiber structure, at least one layer of light absorptive film and adjustment structure；The adjustment structure is connected with the micro-cavity structure, the micro optical fiber structure and the light absorptive film respectively, for adjusting Save between the distance between the light absorptive film and the micro-cavity structure, and the micro optical fiber structure and the micro-cavity structure Distance；The micro-cavity structure is set in a ring, plane where the light absorptive film along the micro-cavity structure perpendicular to annular Direction, be oppositely arranged with the micro-cavity structure, and coupled with the micro-cavity structure, for according to between the micro-cavity structure Distance, control the couple state between the micro optical fiber structure and the micro-cavity structure；The micro optical fiber structure planar, is oppositely arranged positioned at annular micro-cavity structure institute with the micro-cavity structure, and Coupled with the micro-cavity structure, for according to and the couple state between the micro-cavity structure, control the switch of the photoswitch State.
- 2. photoswitch according to claim 1, it is characterised in that the light absorptive film includes graphene film.
- 3. photoswitch according to claim 1, it is characterised in that the scope of the diameter of the micro optical fiber structure is [0.5 μ m-2μm]。
- 4. photoswitch according to claim 1, it is characterised in that the diameter of the light absorptive film is more than the microcavity knot The full diameter of structure.
- 5. photoswitch according to claim 1, it is characterised in that between the light absorptive film and the micro-cavity structure Distance range is [0 μm -3 μm].
- 6. photoswitch according to claim 1, it is characterised in that between the micro optical fiber structure and the micro-cavity structure Distance range is [0 μm -2 μm].
- 7. photoswitch according to claim 1, it is characterised in that wave-length coverage [0.5 μm of -2 μ of the photoswitch work m]。
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| CN201720475108.5U CN206788417U (en) | 2017-05-02 | 2017-05-02 | A kind of photoswitch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908904A (en) * | 2017-05-02 | 2017-06-30 | 南京大学 | A kind of photoswitch and its control method |
| CN111258055A (en) * | 2020-02-12 | 2020-06-09 | 贵州民族大学 | Light-operated photoswitch |
-
2017
- 2017-05-02 CN CN201720475108.5U patent/CN206788417U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908904A (en) * | 2017-05-02 | 2017-06-30 | 南京大学 | A kind of photoswitch and its control method |
| CN111258055A (en) * | 2020-02-12 | 2020-06-09 | 贵州民族大学 | Light-operated photoswitch |
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