CN206959992U - A kind of laser polarization state measuring instrument - Google Patents
A kind of laser polarization state measuring instrument Download PDFInfo
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- CN206959992U CN206959992U CN201720897866.6U CN201720897866U CN206959992U CN 206959992 U CN206959992 U CN 206959992U CN 201720897866 U CN201720897866 U CN 201720897866U CN 206959992 U CN206959992 U CN 206959992U
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- China
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- photodetector
- light source
- transmission light
- prism
- amici prism
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Abstract
The utility model discloses a kind of laser polarization state measuring instrument,Light source state is sequentially provided with the transmission light path of light source to be measured and changes module,Light source state detection module and the first Amici prism,The first polarization splitting prism and the second Amici prism are respectively equipped with two transmission light paths that first Amici prism separates,The first photodetector and the second photodetector are respectively equipped with two transmission light paths that first polarization splitting prism separates,Phase delay device and the 3rd Amici prism are respectively equipped with two articles of transmission light paths that second Amici prism separates,The transmission light path of phase delay device is provided with the second polarization splitting prism,The 3rd photodetector and the 4th photodetector are respectively equipped with two articles of transmission light paths that second polarization splitting prism separates,The first polarizer and the 5th photodetector and the second polarizer and the 6th photodetector are sequentially provided with respectively in two articles of transmission light paths that 3rd Amici prism separates.The utility model detection is more accurate and measurement process is more convenient.
Description
Technical field
The utility model belongs to laser beam polarization state detection device technology field, and in particular to a kind of new pattern laser polarization
State measuring instrument.
Background technology
The maximum feature of laser polarization state detecting instrument is that have a wide range of application at present, is the base furtherd investigate to polarization
Plinth type measuring instrument, it has the drawback that：1st, laser polarization state detecting instrument is that single mode measures, a measuring instrument
A kind of metering system is only provided, lacks contrast reference, precision is relatively low；2nd, metering system is measured using modulation measurement is rotated
Process existence time is poor, can not realize while simultaneously and rapidly accurately measure；3rd, data acquisition and procession process is still artificial note
Record and computing, easily cause the processing to data and deviation occur, can not realize collection and the intellectually and automatically of processing procedure, and
And whole measurement process takes a substantial amount of time.
The content of the invention
The technical problem that the utility model solves there is provided laser polarization state a kind of simple in construction and reasonable in design and survey
Instrument is measured, the laser beam polarization state that the measuring instrument makes detects more accurate, measurement process and more facilitated, and can effectively reduce and turn
Dynamic regulation and caused by measure not precisely, situations such as measuring speed is slow.
The utility model adopts the following technical scheme that to solve above-mentioned technical problem, a kind of laser polarization state measuring instrument, wraps
Include light source placement module to be measured and the light source to be measured being arranged in light source placement module to be measured, it is characterised in that：It is described to treat light-metering
Light source state is sequentially provided with the transmission light path in source and changes module, light source state detection module and the first Amici prism, first point
The first polarization splitting prism and the second Amici prism, the first polarization spectro are respectively equipped with two transmission light paths that light prism separates
The first photodetector and the second photodetector, the second Amici prism point are respectively equipped with two transmission light paths that prism separates
Phase delay device and the 3rd Amici prism are respectively equipped with the two articles of transmission light paths gone out, the transmission light path of phase delay device is provided with
Second polarization splitting prism, be respectively equipped with separate two articles transmission light paths of the second polarization splitting prism the 3rd photodetector and
4th photodetector, the first polarizer and the 5th light are sequentially provided with respectively in separate two articles transmission light paths of the 3rd Amici prism
Electric explorer and the second polarizer and the 6th photodetector.
Further preferably, it is phase delay device that the light source state, which changes module,.
Further preferably, the phase delay device is the wave plate of λ/2.
The utility model has the advantages that compared with prior art：
1st, in measuring instrument three sets of comparison systems make measurement process realize and meanwhile it is synchronous carry out, it is poor to eliminate time of measuring,
So that measurement process is more convenient；2nd, using three sets of measurement of comparison system improvings measurement essence of different optical element designs
Degree, reduces measurement error；3rd, realize the full-automation to signal acquisition and data processing and draw out figure, further carry
The measurement accuracy and the intellectuality of measuring instrument operation and directly perceivedization of result viewing of laser polarization state measuring instrument are risen.
Brief description of the drawings
Fig. 1 is light channel structure schematic diagram of the present utility model；
Fig. 2 is that the utility model uses process measurement data figure.
In figure：1st, light source placement module to be measured, 2, light source state change module, 3, light source state detection module, 4, first
Amici prism, the 5, second polarization splitting prism, the 6, first photodetector, the 7, second photodetector, the 8, second Amici prism,
9th, the 3rd Amici prism, the 10, first polarizer, the 11, second polarizer, the 12, the 5th photodetector, the 13, the 6th photodetection
Device, 14, phase delay device, the 15, second polarization splitting prism, the 16, the 3rd photodetector, the 17, the 4th photodetector.
Embodiment
The technical solution of the utility model is described in detail with reference to accompanying drawing, with reference to figure 1, a kind of laser polarization state measuring instrument, bag
Light source placement module 1 to be measured and the light source to be measured being arranged in light source placement module 1 to be measured are included, in the transmission light path of light source to be measured
It is sequentially provided with light source state and changes module 2, the Amici prism 4 of light source state detection module 3 and first, the first Amici prism 4 separates
Two transmission light paths on be respectively equipped with the first polarization splitting prism 5 and the second Amici prism 8, the first polarization splitting prism 5 divides
The first photodetector 6 and the second photodetector 7 are respectively equipped with the two transmission light paths gone out, the second Amici prism 8 separates
Two articles of transmission light paths on be respectively equipped with the Amici prism 9 of phase delay device 14 and the 3rd, in the transmission light path of phase delay device 14
Provided with the second polarization splitting prism 15, the 3rd photoelectricity is respectively equipped with two articles of transmission light paths that the second polarization splitting prism 15 separates
The photodetector 17 of detector 16 and the 4th, first is sequentially provided with respectively in separate two articles transmission light paths of the 3rd Amici prism 9
The photodetector 12 of polarizer 10 and the 5th and the second polarizer 11 and the 6th photodetector 13.
The utility model is one group of device, three sets of systems, and three sets of comparison systems are mounted with a measuring instrument while are surveyed
Amount, the outgoing beam vibrated with initial incident beam into 6 different angles can be produced, each two angle forms set of system, always
Three sets of comparison systems are formed altogether；Three sets of measurement of comparison systems have used different optical elements, and first set has used polarization spectro
Prism, obtain with incident beam into 0 ° and 90 ° of outgoing beam, second set has used Amici prism and two different angles
Polarizer, obtain with the incident beam outgoing beam at 45 ° with 135 °, the 3rd set has used the wave plate of λ/2 and polarization spectro rib
Mirror, obtain and different measurements has been respectively adopted into 60 ° and 150 ° of outgoing beam, three sets of measurement of comparison systems with incident beam
Method, and simultaneously and rapidly to measure simultaneously, no time of measuring is poor；Intelligent measure and signal acquiring processing system are devised, is applied
LABVIEW programs carry out detection calculations to measurement device data, mainly using formula S=AI, calculate the polarization state of light beam to be measured
Numerical value is represented, and the data of reading are converted, planar graph corresponding to polarised light is drawn in two-dimensional coordinate system（Circular polarization
Light draws circle, and linearly polarized light draws linear）.
Actually detected process data acquired：The data for detecting to obtain in 6 photodetectors are expressed in matrix as：, it is converted into two dimensional image and represents as shown in Figure 2.
General principle of the present utility model, principal character and advantage has been shown and described above, it is new not departing from this practicality
On the premise of type spirit and scope, the utility model also has various changes and modifications, and these changes and improvements both fall within requirement and protected
The scope of the utility model of shield.
Claims (3)
1. a kind of laser polarization state measuring instrument, including light source placement module to be measured and being arranged in light source placement module to be measured is treated
Light-metering source, it is characterised in that：Light source state is sequentially provided with the transmission light path of the light source to be measured and changes module, light source state inspection
Module and the first Amici prism are surveyed, the first polarization splitting prism is respectively equipped with two transmission light paths that the first Amici prism separates
With the second Amici prism, the first photodetector and the are respectively equipped with separate two articles transmission light paths of the first polarization splitting prism
Two photodetectors, phase delay device and the 3rd light splitting rib are respectively equipped with separate two articles transmission light paths of the second Amici prism
Mirror, the transmission light path of phase delay device are provided with the second polarization splitting prism, two transmission that the second polarization splitting prism separates
The 3rd photodetector and the 4th photodetector are respectively equipped with light path, in two articles of transmission light paths that the 3rd Amici prism separates
The first polarizer and the 5th photodetector and the second polarizer and the 6th photodetector are sequentially provided with respectively.
2. laser polarization state measuring instrument according to claim 1, it is characterised in that：It is phase that the light source state, which changes module,
Position delayer.
3. laser polarization state measuring instrument according to claim 1 or 2, it is characterised in that：The phase delay device is the ripple of λ/2
Piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720897866.6U CN206959992U (en) | 2017-07-24 | 2017-07-24 | A kind of laser polarization state measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720897866.6U CN206959992U (en) | 2017-07-24 | 2017-07-24 | A kind of laser polarization state measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206959992U true CN206959992U (en) | 2018-02-02 |
Family
ID=61381332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720897866.6U Expired - Fee Related CN206959992U (en) | 2017-07-24 | 2017-07-24 | A kind of laser polarization state measuring instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN206959992U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271041A (en) * | 2017-07-24 | 2017-10-20 | 河南师范大学 | A kind of laser polarization state measuring instrument |
| CN111141389A (en) * | 2020-02-20 | 2020-05-12 | 长春理工大学 | Device and method for measuring transmission characteristics of polarized light in underwater environment |
-
2017
- 2017-07-24 CN CN201720897866.6U patent/CN206959992U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271041A (en) * | 2017-07-24 | 2017-10-20 | 河南师范大学 | A kind of laser polarization state measuring instrument |
| CN111141389A (en) * | 2020-02-20 | 2020-05-12 | 长春理工大学 | Device and method for measuring transmission characteristics of polarized light in underwater environment |
| CN111141389B (en) * | 2020-02-20 | 2023-05-05 | 长春理工大学 | Device and method for measuring transmission characteristics of polarized light in underwater environment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180202 Termination date: 20180724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |