CN207317950U - A kind of minimum phase measuring system based on the weak measurement of quantum - Google Patents
A kind of minimum phase measuring system based on the weak measurement of quantum Download PDFInfo
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- CN207317950U CN207317950U CN201720779291.8U CN201720779291U CN207317950U CN 207317950 U CN207317950 U CN 207317950U CN 201720779291 U CN201720779291 U CN 201720779291U CN 207317950 U CN207317950 U CN 207317950U
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Abstract
The utility model discloses a kind of minimum phase measuring system based on the weak measurement of quantum, which includes：Signal generation apparatus, the signal generation apparatus are used for the initial state for generating two energy level quantum objects；The initial state includes pointer state and systematic thinking way；Minimum phase signal mapping device, the minimum phase signal mapping device are used to be based on the initial state, minimum phase signal are mapped in the pointer state of quantum object；Signal processing apparatus, the signal processing apparatus are used to after carrying out the systematic thinking way of quantum object select, and realize the amplification to minimum phase signal；Extraction element, the extraction element are used to extract the amplified minimum phase signal under default measurement base to the pointer state of quantum object；Computing device, the minimum phase signal is calculated based on the amplified minimum phase signal.Technical solutions of the utility model can be applied to the measurement of the minimum phase signal less than 0.1 radian.
Description
Technical field
High-accuracy measuring device technical field is the utility model is related to, more specifically, being related to one kind is based on the weak survey of quantum
The minimum phase measuring system of amount.
Background technology
High-accuracy measurement is the important foundation stone of development of modern scientific technology, in scientific research, industrial production, national defense and military neck
Domain plays extremely important effect.Very high minimum phase measurement accuracy, thus one can be realized currently with the interference of light
As measured physical quantity can be converted into the measurement of phase.
To realize the measurement of minimum minimum phase signal, generally there are two schemes：First, use high-resolution interferometer；
Second, being amplified to minimum minimum phase signal, such as Fabry-Perot-type cavity is used in Michelson's interferometer two-arm.When treating
When survey minimum phase signal is extremely faint, amplification is necessary, because being limited to skill level, the precision of interferometer is limited
, the minimum phase signal less than the interferometer limit of resolution can not be measured.
1988, Yakir Aharonov, David Z.Albert and Lev Vaidman proposed the weak measurement of quantum first
Concept and illustrate using its carry out low level signal amplification possibility, i.e., the weak value measurement by magnification alleged by present academia
(Phys.Rev.Lett.60,1351(1988))。
Although weak value measurement by magnification has been able to realize the measurement to many physical quantitys, it is for general minimum phase signal
It is still helpless.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of minimum phase measurement system based on the weak measurement of quantum
System, it is possible to achieve the measurement of minimum phase signal.
To achieve these goals, the utility model provides following technical solution：
A kind of minimum phase measuring system based on the weak measurement of quantum, the minimum phase measuring system include：
Signal generation apparatus, the signal generation apparatus are used for the initial state for generating two energy level quantum objects；It is described initial
State includes pointer state and systematic thinking way；
Minimum phase signal mapping device, the minimum phase signal mapping device is used to be based on the initial state, by pole
Small phase signal is mapped in the pointer state of quantum object；
Signal processing apparatus, the signal processing apparatus are used to after carrying out the systematic thinking way of quantum object select, realization pair
The amplification of minimum phase signal；
Extraction element, the extraction element are used for after amplification is extracted under default measurement base to the pointer state of quantum object
The minimum phase signal；
Computing device, the minimum phase signal is calculated based on the amplified minimum phase signal.
Preferably, in above-mentioned minimum phase measuring system, the two energy levels quantum object is photon；The minimum phase
Measuring system is optics minimum phase measuring system.
Preferably, in above-mentioned minimum phase measuring system, the signal generation apparatus includes：Laser source device and
One beam splitter；
The laser source device is used to produce stable linearly polarized light, and photon initial state is carried out by first beam splitter
Preparation；First beam splitter is used to the linearly polarized light being divided into the first light path and the second light path.
Preferably, in above-mentioned minimum phase measuring system, the minimum phase signal mapping device is polarization-type mikey
The inferior interferometer of that；The Michelson's interferometer has light inlet and light-emitting window；
Wherein, the light inlet of the incident Michelson's interferometer of the optical information in first light path, by its light extraction
Mouth outgoing；The Michelson's interferometer is used for the minimum phase signal for collecting optical information in first light path.
Preferably, in above-mentioned minimum phase measuring system, the signal processing apparatus includes：Second beam splitter；
Wherein, second beam splitter is used for the optical information in second light path and the Michelson's interferometer
The optical information of outgoing merges, to being selected after the progress of photon path state, to realize the amplification to minimum phase signal.
Preferably, in above-mentioned minimum phase measuring system, the extraction element is polarization analysis instrument；The polarization analysis
Instrument has a light inlet and two light-emitting windows；
The light inlet of the incident polarization analysis instrument of optical information after the merging of the second beam splitter outgoing, by described
Polarization analysis instrument is divided into two-way, is emitted respectively by two light-emitting windows of the polarization analysis instrument.
Preferably, in above-mentioned minimum phase measuring system, the computing device is computer, and the computer passes through
One detector and second detector obtain the optical information of two light-emitting windows outgoing of the polarization analysis instrument respectively, to obtain
The amplified minimum phase signal is taken, and then the minimum phase letter is calculated based on the amplified minimum phase signal
Number.
By foregoing description, the minimum phase based on the weak measurement of quantum that technical solutions of the utility model provide measures
It is amplified when obtaining to realize the amplification to minimum phase signal by carrying out suitable rear selection to systematic thinking way in system
, can formula be counter releases minimum phase signal according to amplification after minimum phase signal.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is the embodiment of the utility model, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is a kind of minimum phase measuring system based on the weak measurement of quantum that the utility model embodiment provides；
Fig. 2 is the structure diagram of signal generation apparatus in minimum phase measuring system shown in Fig. 1；
Fig. 3 is the structure diagram of minimum phase signal mapping device in minimum phase measuring system shown in Fig. 1；
Fig. 4 is the structure diagram of signal processing apparatus in minimum phase measuring system shown in Fig. 1；
Fig. 5 is the structure diagram of extraction element in minimum phase measuring system shown in Fig. 1；
Fig. 6 is a kind of flow diagram for minimum phase measuring method that the utility model embodiment provides.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
To enable the above-mentioned purpose of the utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
With reference to figure 1- Fig. 5, Fig. 1 is that a kind of minimum phase based on the weak measurement of quantum that the utility model embodiment provides is surveyed
Amount system, Fig. 2 are the structure diagram of signal generation apparatus in minimum phase measuring system shown in Fig. 1, and Fig. 3 is pole shown in Fig. 1
The structure diagram of minimum phase signal mapping device in small phase measuring system, Fig. 4 are minimum phase measuring system shown in Fig. 1
The structure diagram of middle signal processing apparatus, Fig. 5 are the structural representation of extraction element in minimum phase measuring system shown in Fig. 1
Figure.
As Figure 1-Figure 5, minimum phase measuring system includes described in the utility model embodiment：Signal generation apparatus
11, the signal generation apparatus 11 is used for the initial state for generating two energy level quantum objects；The initial state include pointer state and
Systematic thinking way；Minimum phase signal mapping device 12, the minimum phase signal mapping device 12 are used to be based on the initial state, will
Minimum phase signal is mapped in the pointer state of quantum object；Signal processing apparatus 13, the signal processing apparatus 13 be used for pair
The systematic thinking way of quantum object selects after carrying out, and realizes the amplification to minimum phase signal；Extraction element 14, the extraction element 14
The amplified minimum phase signal is extracted under default measurement base for the pointer state to quantum object；Computing device
15, the computing device 15 is used to calculate the minimum phase signal based on the amplified minimum phase signal.
In minimum phase measuring system described in the utility model embodiment, the two energy levels quantum object can be with interior
The quantum object of portion's free degree, including the quantum object such as photon, atom and neutron.Below using the two energy levels quantum object as
Photon illustrates.
When the two energy levels quantum object is photon, the minimum phase measuring system is optics minimum phase measurement system
System.
When the minimum phase measuring system is optics minimum phase measuring system, the signal generation apparatus 11 wraps
Include：111 and first beam splitter 112 of laser source device；The laser source device 111 is used to produce stable linearly polarized light, leads to
Cross the preparation that first beam splitter 112 carries out photon initial state；First beam splitter 112 is used for the linearly polarized light point
For the first light path and the second light path.
In order to reduce taking up space for optical system, the volume of the minimum phase measuring system is reduced, as shown in Fig. 2,
The signal generation apparatus 11 further includes the first speculum 113.Optical information in first light path passes through first beam splitting
After device 112 is emitted, the directly incident minimum phase signal mapping device 12.
When the minimum phase measuring system is optics minimum phase measuring system, the minimum phase signal mapping dress
It is polarization-type Michelson's interferometer to put 12；The Michelson's interferometer has light inlet and light-emitting window.Wherein, described
The light inlet of the incident Michelson's interferometer of optical information in one light path, is emitted by its light-emitting window；The Michelson
Interferometer is used for the minimum phase signal for collecting optical information in first light path.
Specifically, the Michelson's interferometer includes：Polarization beam apparatus 121, the first quarter-wave plate 122, second
Quarter-wave plate 123, the second speculum 125 and the 3rd speculum 124.Optical information in first light path passes through the mikey
The incident Michelson's interferometer of the light inlet of your inferior interferometer.Optical information incident polarization beam splitter 121 in first light path
After be divided into two road optical informations.
Optical information is after the reflection of polarization beam apparatus 121 all the way, through the first quarter-wave plate 122, then by second
Speculum 125 reflects, polarization beam apparatus 121 described in backtracking.After another way optical information passes through polarization beam apparatus 121, pass through
Second quarter-wave plate 123, then reflected by the 3rd speculum 124, polarization beam apparatus 121 described in backtracking.
The polarization angle for setting two quarter-wave plates in the Michelson's interferometer is 45 ° so that light all the way
The optical information polarization upset of corresponding quarter-wave plate is passed twice through in information, i.e., so that horizontal deflection light is changed into vertical polarization
Light, orthogonal polarized light are changed into horizontal polarization light, so as to avoid optical information original road of two quarter-wave plates each in light path
Return so that optical information of two quarter-wave plates each in light path is equal, from the light-emitting window of the Michelson's interferometer
Together it is emitted.
When the minimum phase measuring system is optics minimum phase measuring system, the signal processing apparatus 13 wraps
Include：Second beam splitter 131.Wherein, second beam splitter 131 be used for by the optical information in second light path and it is described step
The optical information of Ke Erxun interferometers outgoing merges, to being selected after the progress of photon path state, to realize to minimum phase signal
Amplification.
Optical information in second light path is after first beam splitter 112 outgoing, by first speculum
Enter a light inlet of second beam splitter 131 after 113 reflections.The optical information of the Michelson's interferometer outgoing is direct
Into another light inlet of second beam splitter 131.Sky is occupied by first speculum 113 reduction optical system
Between, reduce its volume.The optical information of two light inlet incidence of second beam splitter 131 passes through second beam splitter 131
After merging, it is emitted by the light-emitting window of second beam splitter 131, and the incident extraction element 14.
When the minimum phase measuring system is optics minimum phase measuring system, the extraction element 14 is polarization point
Analyzer.The polarization analysis instrument has a light inlet and two light-emitting windows.After the merging that second beam splitter 131 is emitted
The incident polarization analysis instrument of optical information light inlet, be divided into two-way by the polarization analysis instrument, respectively by the polarization
Two light-emitting windows outgoing of analyzer.
Specifically, the extraction element 14 includes：3rd quarter-wave plate 141, half wave plate 142 and polarization
Beam splitter 143.Optical information after the merging of the incident extraction element 14 passes through 141 He of the 3rd quarter-wave plate successively
After the half wave plate 142, the incident polarization beam apparatus 143, is divided into two-way difference in the polarization beam apparatus 143
Outgoing.
The computing device 15 is computer, and the computer 15 passes through the first detector 151 and second detection
Device 152 obtains the optical information of two light-emitting windows outgoing of the polarization analysis instrument respectively, to obtain the amplified minimum phase
Position signal, and then the minimum phase signal is calculated based on the amplified minimum phase signal.The meter not shown in Fig. 1
Calculation machine.
By foregoing description, in minimum phase measuring system described in the utility model embodiment, by further
Amplify minimum phase signal so as to realize the measurement for the minimum phase signal less than interference instrument resolution ratio itself, survey
Accuracy of measurement is high.The minimum phase measuring system can utilize the combination of existing interferometer to realize, simple in structure, workable.This
Outside, since many important physical quantities can be converted into the measurement to small phase signal, the minimum phase measuring system
It can be widely applied to scientific research, industrial production, national defense and military is applied widely.
Based on above-mentioned minimum phase measuring system, another embodiment of the utility model additionally provides one kind and is based on the weak survey of quantum
The minimum phase measuring method of amount, the minimum phase measuring method is as shown in fig. 6, Fig. 6 provides for the utility model embodiment
A kind of minimum phase measuring method flow diagram, the minimum phase measuring method includes：
Step S11：Generate the initial state of two energy level quantum objects；The initial state includes pointer state and systematic thinking way.
Set the initial state of two energy level quantum objects | Ψj>SP, have
Wherein, S is systematic thinking way, and when quantum object is photon, systematic thinking way is path state；P is pointer state, when quantum object
For photon when, pointer state is polarization state.
In addition, a, b, c and d are the constant for meeting normalizing condition, have：
|a|2+|b|2=1 (2)
|c|2+|d|2=1 (3)
Wherein, | 0>And | 1>Represent two different paths states of quantum object, | ↑>And | ↓>Represent quantum object
Two different internal degree of freedom states, there is two different energy level states or spin state.In the case where quantum object is photon situation, can use
Laser source device produces the stable optical information in linear polarization, and realizes the initial of photon using optical elements such as beam splitters
It is prepared by state.
Step S12：Based on the initial state, minimum phase signal is mapped in the pointer state of quantum object.
In order to realize the measurement of minimum phase signal, it is necessary to which phase signal to be mapped to the pointer state of quantum object.This can
To pass through unitary operationsAct on the initial state of quantum object to realize weak coupling, unitary operationsRepresent as follows：
Wherein, θ represents minimum phase signal to be measured, and i is imaginary unit；I is unit matrix.
The initial state of quantum object is changed into after above-mentioned unitary operations | Ψf＞SP, have：
In the case of quantum object is photon, unitary operationsCan by by beam splitter wherein optical information leads to all the way
Cross a polarization-type Michelson's interferometer or realized by an object with two tropisms.
Step S13：To being selected after the systematic thinking way progress of quantum object, the amplification to minimum phase signal is realized.
In order to realize the measurement of minimum phase signal, it is necessary to being selected after the systematic thinking way progress of quantum object.It is assumed that rear choosing
Select state | Ψ ＞SRepresent as follows：
|Ψ>S=m | 0 ＞+n | 1> (6)
Quantum object does not normalize pointer state after then selecting afterwards | φ>PIt is changed into:
|φ>P=S<ψ||Ψf>SP=c (am+cn) | ↑>+d·(am+cneiθ | ↓ ＞) (7)
Wherein, m and n is known constant, due to θ ＜ ＜ 1, under first approximation, is had：
am+cneie|↓>=| am+cn | eiγ (8)
Wherein, γ is the amplified minimum phase signal, and just like the big formula of decentralization：
Tan γ=sin θ/(cos θ+am/cn) (9)
So pointer state of quantum object | φ>PIt is changed into：
|φ>P=c (am+cn | |>+d·|am+cn|eiγ|↓>) (10)
State is selected to cause after default：
am+cn→0 (11)
It can realize to obtain amplified phase γ.
In the case of quantum object is photon, rear selection can by by separated two-way optical information in another beam splitter
Interfere and only leave and take the photon that dark port comes out and realize in place.
Step S14：The amplified minimum phase letter is extracted under default measurement base to the pointer state of quantum object
Number.
The amplified phase signal γ of extraction is measured under suitable measurement base to the pointer state of quantum object.In quantum visitor
In the case of body is photon, the photon after being selected after can making is by one by half wave plate, quarter-wave plate and polarization
The polarization analysis instrument that beam splitter is formed extracts amplified phase γ.
Step S15：The minimum phase signal is calculated based on the amplified minimum phase signal.
Computer can gather optical information by detector, obtain amplified phase γ, and according to above-mentioned amplification formula
(9) minimum phase signal θ is instead released.
Seen from the above description, the minimum phase measuring method can be achieved using existing ripe interference technique means
Minimum phase measurement based on the weak measuring and amplifying of quantum.Phase, the minimum phase measurement side are surveyed compared to traditional interferometric method
Method can realize the amplification to minimum phase to be measured so as to measure the phase signal less than interferometer resolution ratio, have measurement
Precision is high, has the advantages of simple structure and easy realization, and can be widely used in needing the scientific research of high-acruracy survey, industrial production and national defence troops
The fields such as thing.
In minimum phase measuring method described in the utility model embodiment, the two energy levels quantum object be with it is internal from
By the quantum object spent, including but not limited to the quantum object such as photon, atom and neutron.The minimum phase measuring method
Measurement for the physical quantity that can be converted into minimum phase measurement, the physical quantity include but is not limited to displacement, speed, temperature
Degree, atom polarization and dichroism etc..The collection of minimum phase signal can be polarization it is relevant can also be polarization it is unrelated
, as long as minimum phase signal is reflected in the relative phase of linear polarization.
Below in the case of quantum object is photon to minimum phase measuring method described in the utility model embodiment into
Row further instruction.
At this time, the minimum phase measuring method is specifically used for optics minimum phase measuring system as Figure 1-Figure 5,
Laser aid 111 produces to stablize represents as follows in linear polarization：
Wherein, | H ＞ with | V ＞ represent two different internal degree of freedom states of photon respectively, | H>=| ↑>Represent horizontal inclined
Polarization state, | V>=| ↓>Represent polarization and vertical polarization,When, based on formula (1) and (12), have：
At this time, | 0>And | 1>Represent optical information after the first beam splitter 112 along the path state of two different directions.
As shown in Figure 1, a polarization-type Michael is passed through by the optical information in the first light path after the first beam splitter 112
Inferior interferometer realizes the collection to minimum phase signal；Polarization-type Michelson's interferometer is by a polarization beam apparatus 121, two
Quarter-wave plate (the first quarter-wave plate 122 and the second quarter-wave plate 123) and two total reflective mirror (the second speculums
125 and the 3rd speculum 124) composition, the polarization angle of wherein quarter-wave plate is 45 °, so that passing twice through
The polarization reversion of its light, i.e. horizontal polarization light are changed into orthogonal polarized light, orthogonal polarized light be changed into horizontal polarization light so that
Light will not along backtracking but be emitted from the another port of polarization beam apparatus.
In this way, according to polarization-type Michelson's interferometer self character, from the light of polarization-type Michelson's interferometer outgoing
Polarization state be changed into:
Wherein, θ is minimum phase to be measured.
With above-mentioned, to select after realizing the amplification of minimum phase signal, it is necessary to be carried out to photon path state, this can pass through
Second beam splitter 131 is realized.
The quantum state of photon before into the second beam splitter 131, based on formula (5), is：
It is assumed that the reflection and transmission coefficients of the second beam splitter 131 are respectively c and d, then from the light-emitting window of the second beam splitter 131
The path state for the light that (dark port) comes out, based on formula (6), is：
|Ψ>=c | 0>+d|1> (15)
Then from the polarization state of photon after the outgoing of the light-emitting window of the second beam splitter 131 under first approximation, based on formula (7),
(8), (9) and formula (10), are changed into：
Wherein, based on formula (9), just like the big formula of decentralization：
Tan γ=sin θ/(cos θ+ac/bd) (17)
By selecting state after suitably choosing, you can realize γ ＞ θ so as to complete the amplification of minimum phase.
Further, the photon after being selected after the second beam splitter 131 sequentially enters one by quarter-wave plate
141st, polarization analysis instrument that half wave plate 142 and polarization beam apparatus 143 form realizes the survey to amplified phase γ
Amount.
It is contemplated that measurement base known to selection is presetting | R>, | L ＞ }, setting：
Therefore the difference of the light intensity of 143 liang of light-emitting windows of polarization beam apparatus is：
△ I=I × (|<R|φ>|2-|<L|φ>|2) sin γ=I × sin γ (20)
Wherein, I is the light intensity after being selected after the second fraction device 131, and the difference Δ I of light intensity provides amplified phase
γ, then the minimum phase θ for being less than 0.1 radian is instead released according to amplification formula (17) accordingly.
In minimum phase measuring method described in the utility model embodiment, based on selection course amplifying stage after the weak measurement of quantum
The measurement of small phase and then realization to it.The utility model embodiment is by being further amplified small phase signal so as to realizing
Measurement for the small phase signal less than interference instrument resolution ratio itself, high certainty of measurement；Based on the weak measuring and amplifying of quantum
Minimum phase measurement can utilize the combination of existing interferometer to realize, simple in structure, workable；It is further, since many important
Physical quantity can be converted into the measurement to small phase signal, and the utility model embodiment can be widely applied to scientific research,
Industrial production, national defense and military are applied widely.The technical solution as described in the utility model embodiment can be used for gravitational wave spy
The fields such as survey, Exceedingly feeble magnetic field detection, optical imagery, protein structural analysis and product quality detection.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (7)
- A kind of 1. minimum phase measuring system based on the weak measurement of quantum, it is characterised in that the minimum phase measuring system bag Include：Signal generation apparatus, the signal generation apparatus are used for the initial state for generating two energy level quantum objects；The initial state bag Include pointer state and systematic thinking way；Minimum phase signal mapping device, the minimum phase signal mapping device is used to be based on the initial state, by minimum phase Position signal is mapped in the pointer state of quantum object；Signal processing apparatus, the signal processing apparatus are used to after carrying out the systematic thinking way of quantum object select, realize to minimum The amplification of phase signal；Extraction element, the extraction element are used to extract amplified institute under default measurement base to the pointer state of quantum object State minimum phase signal；Computing device, the minimum phase signal is calculated based on the amplified minimum phase signal.
- 2. minimum phase measuring system according to claim 1, it is characterised in that the two energy levels quantum object is light Son；The minimum phase measuring system is optics minimum phase measuring system.
- 3. minimum phase measuring system according to claim 2, it is characterised in that the signal generation apparatus includes：Swash Light supply apparatus and the first beam splitter；The laser source device is used to produce stable linearly polarized light, and the system of photon initial state is carried out by first beam splitter It is standby；First beam splitter is used to the linearly polarized light being divided into the first light path and the second light path.
- 4. minimum phase measuring system according to claim 3, it is characterised in that the minimum phase signal mapping device For polarization-type Michelson's interferometer；The Michelson's interferometer has light inlet and light-emitting window；Wherein, the light inlet of the incident Michelson's interferometer of the optical information in first light path, goes out by its light-emitting window Penetrate；The Michelson's interferometer is used for the minimum phase signal for collecting optical information in first light path.
- 5. minimum phase measuring system according to claim 4, it is characterised in that the signal processing apparatus includes：The Two beam splitters；Wherein, second beam splitter is used to the optical information in second light path and the Michelson's interferometer being emitted Optical information merge, with to photon path state carry out after select, realize the amplification to minimum phase signal.
- 6. minimum phase measuring system according to claim 5, it is characterised in that the extraction element is polarization analysis Instrument；The polarization analysis instrument has a light inlet and two light-emitting windows；The light inlet of the incident polarization analysis instrument of optical information after the merging of the second beam splitter outgoing, by the polarization Analyzer is divided into two-way, is emitted respectively by two light-emitting windows of the polarization analysis instrument.
- 7. minimum phase measuring system according to claim 6, it is characterised in that the computing device is computer, institute State computer by the first detector and the second detector obtain respectively the polarization analysis instrument two light-emitting windows be emitted Optical information, to obtain the amplified minimum phase signal, and then calculates institute based on the amplified minimum phase signal State minimum phase signal.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107063479A (en) * | 2017-06-29 | 2017-08-18 | 中国科学技术大学 | A kind of minimum phase measuring system and method based on the weak measurement of quantum |
| CN109061755A (en) * | 2018-07-22 | 2018-12-21 | 四川大学 | High-precision microgravity acceleration measurement device and measurement method based on the weak measurement of quantum |
| EP3870941A4 (en) * | 2018-10-22 | 2022-07-20 | DRS Network & Imaging Systems, LLC | Integrated optics quantum weak measurement amplification sensor for remote sensing |
| US11619493B2 (en) | 2020-10-27 | 2023-04-04 | Drs Network & Imaging Systems, Llc | Optical gyroscope with weak measurement amplification readout |
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2017
- 2017-06-29 CN CN201720779291.8U patent/CN207317950U/en not_active Withdrawn - After Issue
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063479A (en) * | 2017-06-29 | 2017-08-18 | 中国科学技术大学 | A kind of minimum phase measuring system and method based on the weak measurement of quantum |
| CN107063479B (en) * | 2017-06-29 | 2023-07-14 | 中国科学技术大学 | Minimum phase measurement system and method based on quantum weak measurement |
| CN109061755A (en) * | 2018-07-22 | 2018-12-21 | 四川大学 | High-precision microgravity acceleration measurement device and measurement method based on the weak measurement of quantum |
| CN109061755B (en) * | 2018-07-22 | 2019-11-26 | 四川大学 | High-precision microgravity acceleration measurement device and measurement method based on the weak measurement of quantum |
| EP3870941A4 (en) * | 2018-10-22 | 2022-07-20 | DRS Network & Imaging Systems, LLC | Integrated optics quantum weak measurement amplification sensor for remote sensing |
| JP7333158B2 (en) | 2018-10-22 | 2023-08-24 | ディーアールエス ネットワーク アンド イメージング システムズ、リミテッド ライアビリティー カンパニー | Integrated optical quantum weak measurement amplified sensor for remote sensing |
| US11815630B2 (en) | 2018-10-22 | 2023-11-14 | Drs Network & Imaging Systems, Llc | Integrated optics quantum weak measurement amplification sensor for remote sensing |
| US11619493B2 (en) | 2020-10-27 | 2023-04-04 | Drs Network & Imaging Systems, Llc | Optical gyroscope with weak measurement amplification readout |
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