CN110361604A - Electric field detecting quantum assembly and preparation method and quantum field strength sensor - Google Patents
Electric field detecting quantum assembly and preparation method and quantum field strength sensor Download PDFInfo
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- CN110361604A CN110361604A CN201910664244.2A CN201910664244A CN110361604A CN 110361604 A CN110361604 A CN 110361604A CN 201910664244 A CN201910664244 A CN 201910664244A CN 110361604 A CN110361604 A CN 110361604A
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- wave guide
- straight wave
- coupling connector
- electric field
- fiber coupling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0878—Sensors; antennas; probes; detectors
- G01R29/0885—Sensors; antennas; probes; detectors using optical probes, e.g. electro-optical, luminiscent, glow discharge, or optical interferometers
Abstract
The present invention discloses a kind of electric field detecting quantum assembly and preparation method and quantum field strength sensor.A kind of embodiment of electric field detecting quantum assembly includes: the first straight wave guide (110), the second straight wave guide (120), disc waveguide (200), the first fiber coupling connector (410) and the second fiber coupling connector (420)；First straight wave guide (110) and the second straight wave guide (120) are overlapped with two to be parallel to each other the tangent line of disc waveguide (200) respectively, first straight wave guide (110) and the second straight wave guide (120) communicate at point of contact with disc waveguide (200) respectively, disc waveguide (200) includes two metal air chambers (300) equidistant with two tangent lines respectively, vapour of an alkali metal has been sealed up for safekeeping in metal air chamber (300), first fiber coupling connector (410) is connect with a port of the first straight wave guide (110), second fiber coupling connector (420) is connect with a port of the second straight wave guide (120).Electric field detecting quantum assembly of the invention uses optical fiber interface, easy adjusting small in size.
Description
Technical field
The present invention relates to quantum electric field detecting technologies.More particularly, to a kind of electric field detecting quantum assembly and preparation side
Method and quantum field strength sensor.
Background technique
With the development of quantum techniques, quantum techniques is begun to use to realize that the accurate measurement method of electromagnetic field intensity is ground in the world
Study carefully.Compared with traditional field strength measurement mode such as dipole/detector diode probe, integrated light guide LiNbO3 electric-field sensor,
The field strength measurement principle of quantum field strength sensor is the relationship based on additional electromagnetic field Yu alkali metal atom energy level transition, in principle
On may be implemented different frequency range, varying strength electromagnetic field intensity measurement, and can be formed by the measurement of field strength electric field at
As technology, there is important influence in terms of the following electric field measurement and electric field imaging.Some prior arts, which use, is based on Rydberg
The quantum field strength Detection Techniques of atom, greatly improve the measurement accuracy and measurement range of electric field strength, but due to use
It is all discreet optical elements and glass alkali metal gas chamber, big, tuning complexity technical problem that there are volumes.
Accordingly, it is desirable to provide a kind of small in size, the electric field detecting component that can easily be accommodated.
Summary of the invention
The purpose of the present invention is to provide a kind of electric field detecting quantum assembly and preparation method and quantum field strength sensor,
It is at least one of of the existing technology to solve the problems, such as.
In order to achieve the above objectives, the present invention adopts the following technical solutions:
The first aspect of the present invention provides a kind of electric field detecting quantum assembly, comprising: the first straight wave guide, the second straight wave guide,
Disc waveguide, the first fiber coupling connector and the second fiber coupling connector；First straight wave guide and second straight wave guide point
Be not overlapped with two to be parallel to each other the tangent line of the disc waveguide, first straight wave guide and second straight wave guide respectively with
The disc waveguide communicates at point of contact, and the disc waveguide includes two metal gas equidistant with two tangent lines respectively
Room, has sealed vapour of an alkali metal in the metal air chamber up for safekeeping, and one of the first fiber coupling connector and first straight wave guide
Port connection, the second fiber coupling connector are connect with a port of second straight wave guide.
Optionally, the disc waveguide is cylindrical.
Optionally, first straight wave guide, second straight wave guide are made up with the disc waveguide of etching technics.
Optionally, the metal air chamber is by carrying out secondarily etched formation to the disc waveguide.
Optionally, first straight wave guide connects the port of the first fiber coupling connector and second straight wave guide connects
The port for connecing the second fiber coupling connector is non-conterminous.
Optionally, the first fiber coupling connector is for accessing detection light optical fiber；The second fiber coupling connector is used
Light optical fiber is coupled in access.
The second aspect of the present invention provides a kind of quantum field strength sensor, including electric field detecting amount any as described above
Sub-component.
The third aspect of the present invention provides a kind of preparation method of electric field detecting quantum assembly, comprising: based on to titanium dioxide
The etching of silicon substrate forms the first straight wave guide, the second straight wave guide and disc waveguide, wherein first straight wave guide and described the
Two straight wave guides are overlapped with two to be parallel to each other the tangent line of the disc waveguide respectively, and first straight wave guide and described second is directly
Waveguide communicates at point of contact with the disc waveguide respectively；Two metal gas of secondarily etched formation are carried out to the disc waveguide
Room, wherein described two metal air chambers are equidistant with two tangent lines respectively；Under elevated temperature in vacuo, to the metal gas
Room carries out the alkali metal system of filling, and is sealed up for safekeeping the steam of the alkali metal with being bonded for the disc waveguide by silicon dioxide substrates
In the metal air chamber；First fiber coupling connector is connect with a port of first straight wave guide, by the second optical fiber
Coupling is connect with a port of second straight wave guide.
Optionally, the disc waveguide is formed cylindrical shape.
Optionally, a port of the light optical fiber by the first fiber coupling connector and first straight wave guide will be detected
Coupling light optical fiber is connect by the second fiber coupling connector with a port of second straight wave guide by connection.
Beneficial effects of the present invention are as follows:
The electric field detecting quantum assembly that technical solution of the present invention proposes can make to detect light and coupling using optical fiber interface
Light directly interacts in integration module, and the volume and discrete optical path component for solving alkali metal gas chamber bring volume
Greatly, the difficult technical problem of tuning is small in size can easily be accommodated.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing；
Fig. 1 shows the top view of electric field detecting quantum assembly provided in an embodiment of the present invention；
Fig. 2 shows the side views of electric field detecting quantum assembly provided in an embodiment of the present invention；
Fig. 3 shows the flow chart of the preparation method of electric field detecting quantum assembly provided in an embodiment of the present invention；
Specific embodiment
In order to illustrate more clearly of the present invention, the present invention is done further below with reference to preferred embodiments and drawings
It is bright.It will be appreciated by those skilled in the art that specifically described content is illustrative and be not restrictive below, it should not be with this
It limits the scope of the invention.
As depicted in figs. 1 and 2, An embodiment provides a kind of electric field detecting quantum assembly, comprising:
One straight wave guide 110, the second straight wave guide 120, disc waveguide 200, the first fiber coupling connector 410 and the second fiber coupling connector
420；First straight wave guide 110 and the second straight wave guide 120 are overlapped with two to be parallel to each other the tangent line of disc waveguide 200 respectively, the
One straight wave guide 110 and the second straight wave guide 120 communicate at point of contact with disc waveguide 200 respectively, and disc waveguide 200 includes two points
The not metal air chamber 300 equidistant with two tangent lines has sealed vapour of an alkali metal, the first fiber coupling connector up for safekeeping in metal air chamber 300
410 connect with a port (port A or port B) of the first straight wave guide 110, the second fiber coupling connector 420 and the second straight wave
Lead 120 a port (port C or port D) connection.
As an alternative embodiment, disc waveguide 200 can cylindrical, dish type or track type, it is preferred that ring
Shape waveguide 200 is cylindrical, to reduce the loss of light.Also it can according to need and be designed to other shapes, as long as can be to greatest extent
Reduce the loss of light.
As an alternative embodiment, the first straight wave guide 110, the second straight wave guide 120 pass through quarter with disc waveguide 200
Etching technique is made.Metal air chamber 300 is by carrying out secondarily etched formation to disc waveguide 200.
As a preferred embodiment, the first straight wave guide (110) connects the port of the first fiber coupling connector (410)
The port that the second fiber coupling connector (420) is connect with the second straight wave guide (120) is non-conterminous.
As an alternative embodiment, the first fiber coupling connector 410 is for accessing detection light optical fiber；Second optical fiber
Coupling 420 is for accessing coupling light optical fiber.In the port A of the first straight wave guide 110 and port C of the second straight wave guide 120, divide
Tail optical fiber or tapered fiber are not collimated and be adhesively fixed, enters the energy of waveguide to increase coupling light and detection light.The electricity
When in use, coupling light enters the second straight wave guide 120 by port C to field detection quantum assembly, and is coupled into disc waveguide 200,
Propagate and pass through every time metal air chamber 300 clockwise (or counterclockwise) in disc waveguide 200, detection light is entered by port A
First straight wave guide 110, and it is coupled into disc waveguide 200, (or clockwise) propagation counterclockwise in disc waveguide 200 is simultaneously each
All by metal air chamber 300, when coupling light and detection light acts in disc waveguide 200 with alkali metal simultaneously, such as exist outer
Portion's electric field then can produce the signal of characterization electric field strength, can generate technical effect identical with existing separated structure, can
Directly to substitute the unit that light and alkali metal and electric field interact.Wherein, the direction of propagation of two-beam is opposite.
Electric field detecting quantum assembly provided in this embodiment can make to detect light and couple light collecting using optical fiber interface
It directly interacts in module, the volume and discrete optical path component for solving alkali metal gas chamber bring that volume is big, adjusts
The technical problem of humorous hardly possible.
Another embodiment of the present invention provides a kind of quantum field strength sensors, including electric field provided by the above embodiment to visit
Measure sub-component.
As shown in figure 3, another embodiment of the invention provides a kind of preparation method of electric field detecting quantum assembly, packet
Include following steps:
S100: based on the etching to silica substrate, forming the first straight wave guide, the second straight wave guide and disc waveguide,
In, the first straight wave guide and the second straight wave guide are overlapped with two to be parallel to each other the tangent line of disc waveguide respectively, the first straight wave guide and
Second straight wave guide communicates at point of contact with disc waveguide respectively；
S200: two metal air chambers of secondarily etched formation are carried out to disc waveguide, wherein two metal air chambers are respectively with two
Tangent line is equidistant；
S300: under elevated temperature in vacuo, the alkali metal system of filling is carried out to metal air chamber, and pass through silicon dioxide substrates and ring
The bonding of shape waveguide seals the steam of alkali metal in metal air chamber up for safekeeping；
S400: the first fiber coupling connector is connect with a port of the first straight wave guide, by the second fiber coupling connector
It is connect with a port of the second straight wave guide.
As an alternative embodiment, disc waveguide is formed cylindrical shape.
As an alternative embodiment, passing through the first fiber coupling connector and the first straight wave guide for light optical fiber is detected
Coupling light optical fiber is connect by the second fiber coupling connector with a port of the second straight wave guide by a port connection.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower" is base
In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention.Unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, example
Such as, it may be fixed connection or may be dismantle connection, or integral connection；It can be mechanical connection, be also possible to be electrically connected
It connects；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
It should also be noted that, in the description of the present invention, relational terms such as first and second and the like are only used
Distinguish one entity or operation from another entity or operation, without necessarily requiring or implying these entities or
There are any actual relationship or orders between operation.Moreover, the terms "include", "comprise" or its any other change
Body is intended to non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wrapped
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that equipment is intrinsic.In the absence of more restrictions, the element limited by sentence "including a ...", and
It is not excluded in process, method, article or equipment in the process, method, article or apparatus that includes the element that there is also other identical elements.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention for those of ordinary skill in the art on the basis of the above description can be with
It makes other variations or changes in different ways, all embodiments can not be exhaustive here, it is all to belong to the present invention
The obvious changes or variations extended out of technical solution still in the scope of protection of the present invention.
Claims (10)
1. a kind of electric field detecting quantum assembly characterized by comprising
First straight wave guide (110), the second straight wave guide (120), disc waveguide (200), the first fiber coupling connector (410) and second
Fiber coupling connector (420)；
First straight wave guide (110) and second straight wave guide (120) are parallel to each other with the disc waveguide (200) respectively
Two tangent lines be overlapped, first straight wave guide (110) and second straight wave guide (120) respectively with the disc waveguide
(200) it is communicated at point of contact, the disc waveguide (200) includes two metal air chambers equidistant with two tangent lines respectively
(300), vapour of an alkali metal, the first fiber coupling connector (410) and described first have been sealed up for safekeeping in the metal air chamber (300)
The a port of straight wave guide (110) connects, the second fiber coupling connector (420) and the one of second straight wave guide (120)
A port connection.
2. electric field detecting quantum assembly according to claim 1, which is characterized in that
The disc waveguide (200) is cylindrical.
3. electric field detecting quantum assembly according to claim 1, which is characterized in that
First straight wave guide (110), second straight wave guide (120) and the disc waveguide (200) pass through etching technics system
At.
4. electric field detecting quantum assembly according to claim 3, which is characterized in that
The metal air chamber (300) is by carrying out secondarily etched formation to the disc waveguide (200).
5. electric field detecting quantum assembly according to claim 1, which is characterized in that
The port of first straight wave guide (110) connection the first fiber coupling connector (410) and second straight wave guide
(120) port for connecting the second fiber coupling connector (420) is non-conterminous.
6. electric field detecting quantum assembly according to claim 1, which is characterized in that
The first fiber coupling connector (410) is for accessing detection light optical fiber；
The second fiber coupling connector (420) is for accessing coupling light optical fiber.
7. a kind of quantum field strength sensor, which is characterized in that including electric field detecting amount such as of any of claims 1-6
Sub-component.
8. a kind of preparation method of electric field detecting quantum assembly characterized by comprising
Based on the etching to silica substrate, the first straight wave guide, the second straight wave guide and disc waveguide are formed, wherein described the
One straight wave guide and second straight wave guide are overlapped with two to be parallel to each other the tangent line of the disc waveguide respectively, and described first is straight
Waveguide and second straight wave guide communicate at point of contact with the disc waveguide respectively；
To the disc waveguide carry out two metal air chambers of secondarily etched formation, wherein described two metal air chambers respectively with institute
It is equidistant to state two tangent lines；
Under elevated temperature in vacuo, the alkali metal system of filling is carried out to the metal air chamber, and pass through silicon dioxide substrates and the ring
The bonding of shape waveguide seals the steam of the alkali metal in the metal air chamber up for safekeeping；
First fiber coupling connector is connect with a port of first straight wave guide, by the second fiber coupling connector with it is described
The a port of second straight wave guide connects.
9. according to the method described in claim 8, it is characterized in that,
The disc waveguide is formed cylindrical shape.
10. according to the method described in claim 8, it is characterized in that,
Detection light optical fiber is connect by the first fiber coupling connector with a port of first straight wave guide, will be coupled
Light optical fiber is connect by the second fiber coupling connector with a port of second straight wave guide.
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| CN201910664244.2A CN110361604B (en) | 2019-07-23 | 2019-07-23 | Electric field detection quantum component, preparation method and quantum field intensity sensor |
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| CN112526221A (en) * | 2020-10-26 | 2021-03-19 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Electromagnetic field composite probe and detection system |
| WO2023014740A1 (en) * | 2021-08-02 | 2023-02-09 | Government Of The United States Of America, As Represented By The Secretary Of Commerce | Photonic rydberg atom radio frequency receiver and measuring a radio frequency electric field |
| EP4120905A4 (en) * | 2020-03-19 | 2024-04-03 | Stanford Res Inst Int | Quantum electromagnetic field sensor and imager |
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