CN206348271U - Each spectrum composition Annual distribution of ultrafast super continuous spectrums and time coherence measurement instrument - Google Patents
Each spectrum composition Annual distribution of ultrafast super continuous spectrums and time coherence measurement instrument Download PDFInfo
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- CN206348271U CN206348271U CN201621270246.1U CN201621270246U CN206348271U CN 206348271 U CN206348271 U CN 206348271U CN 201621270246 U CN201621270246 U CN 201621270246U CN 206348271 U CN206348271 U CN 206348271U
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- light
- dichroscope
- super continuous
- continuous spectrums
- reflective mirror
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Abstract
The utility model is applied to ultra-fast optical field of measuring technique there is provided a kind of each spectrum composition Annual distribution of ultrafast super continuous spectrums and time coherence measurement instrument, including：First dichroscope, the first light path steering assembly, the second light path steering assembly, the second dichroscope, the first object lens, the second object lens, short wave pass filter, optical fiber collecting lens and CCD fiber spectrometers；First dichroscope is used to incident spectrum to be measured being separated into detection light and super continuous spectrums light, first, second light path steering assembly is used to the direction of propagation of separated light being separately directed to the second dichroscope, second dichroscope is used to collinearly export incident detection light and super continuous spectrums light, first object lens are used to excite sample to produce flashlight, flashlight is exported after being collected through the second object lens, and after short wave pass filter wiping out background light, be coupled to CCD fiber spectrometers to measure by optical fiber collecting lens.The utility model provide measuring instrument it is simple in construction, it is easy regulation and obtain data it is disposable.
Description
Technical field
The utility model belongs to field of optical measuring technologies, more particularly to a kind of each spectrum composition time of ultrafast super continuous spectrums
Distribution and time coherence measurement instrument.
Background technology
Fig. 1 is the schematic diagram on intersecting frequency domain correlation X-Frog Annual distribution measuring instruments, and it includes device：Plane reflection
Mirror 101-110, concave mirror 111 and frequency crystal 112 and CCD spectrometers 113, wherein, and to be placed in one automatic for frequency crystal 112
On the electronically controlled motor of swing；In measurement, light will be detected by non-colinear mode and be respectively fed to the measurement with super continuous spectrums light
Instrument, after two-way light pulse is reflected respectively through a series of plane mirrors, then the same concave mirror 111 of process reflects, then
The detection light of reflection passes through with super continuous spectrums light and frequency crystal is produced and frequency signal, then injects the CCD spectrometers 113
The measurement of the Annual distribution of realization pair and frequency signal.
The shortcoming of above-mentioned Annual distribution measuring instrument is：1st, inputted using non-colinear, regulation is got up cumbersome；2nd, measure
When to use iterative algorithm, solution procedure is more complicated；3 and frequency crystal need to meet phase-matching condition；In addition, spectrometer
Optical filter is not provided with before, there can be certain ambient interferences.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of ultrafast super continuous spectrums each spectrum composition time point
Cloth and time coherence measurement instrument, it is desirable to provide a kind of structure is simpler, the data that are more easy to adjust and obtain are more disposable
Each spectrum composition Annual distribution and time coherence measurement instrument.
The utility model provides a kind of each spectrum composition Annual distribution of ultrafast super continuous spectrums and time coherence measurement instrument,
Including：
First dichroscope, the first light path steering assembly, the second light path steering assembly, the second dichroscope, the first object lens,
Second object lens, short wave pass filter, optical fiber collecting lens and CCD fiber spectrometers；
Wherein, first dichroscope and spectrum incident light to be measured are placed in predetermined angle, for by the to be measured of incidence
Spectrum is separated into the detection light of shortwave and the super continuous spectrums light of long wave；
The first light path steering assembly, for by the direction of propagation of the super continuous spectrums light guide to the described 2nd 2 to
Look mirror；
The second light path steering assembly, for the direction of propagation of the detection light to be guided to second dichroic
Mirror；
Second dichroscope, for the incident detection light and the super continuous spectrums light collinearly to be exported；
First object lens, for will be focused on from the detection light of the second dichroscope outgoing and super continuous spectrums light, with
Produce focal beam spot and get on sample, so as to excite sample to produce flashlight；
Second object lens, for collecting the flashlight, and do collimation processing so that the quasi-parallel output of the flashlight；
The short wave pass filter, for by from the detection light in the flashlight of the quasi-parallel output of the second object lens and super
Continuous spectrum light is filtered out；
The optical fiber collecting lens, for by by the signal of the short wave pass filter optically coupling in optical fiber so that
Send into the CCD fiber spectrometers；
The CCD fiber spectrometers, enter for each spectrum composition Annual distribution and time consistency to the flashlight
Row measurement.
Further, the first light path steering assembly includes the first total reflective mirror, first total reflective mirror and described first
Dichroscope is parallel.
Further, the second light path steering assembly includes the second total reflective mirror, the 3rd total reflective mirror, one dimension displacement platform and the
Four total reflective mirrors；
Second total reflective mirror and the 3rd total reflective mirror are positioned on the one dimension displacement platform, the one dimension displacement platform institute
Plane and straight line parallel where the spectrum incident light to be measured, second total reflective mirror puts down with first dichroscope
OK, second total reflective mirror, the 3rd total reflective mirror and the angle sum of plane where the one dimension displacement platform are complementary, and the described 4th is complete
Anti- mirror is parallel with the 3rd total reflective mirror.
Further, the predetermined angle is 45 degree or 135 degree.
Further, the measuring instrument also includes a positioning collimating aperture, and the positioning collimating aperture is arranged at described second
Between dichroscope and first object lens.
Further, first object lens, second object lens are equal with the distance between the sample respectively.
Further, the sample is vitreous silica or benzonitrile.
Compared with prior art, beneficial effect is the utility model：It is a kind of ultrafast super continuous that the utility model is provided
Each spectrum composition Annual distribution and time coherence measurement instrument are composed, by the way of collinearly inputting so that regulation more facilitates, and
And, the center of obtained trace diagram just corresponds to each corresponding Annual distribution center of spectrum composition of super continuous spectrums, it is not necessary to by calculating
Method iterative, is easy to get to result；In addition, the principle based on four-wave mixing and collinear manner is used, so, phase is met automatically
Matching condition.
The utility model has simpler space structure compared to X-Frog Annual distribution measuring instruments, it is easy to adjust,
And the data obtained are easily handled；Meanwhile, sample is also fairly simple, can voluntarily select according to actual needs, such as, sample is adopted
With this cheap material of vitreous silica piece；In addition, short wave pass filter is additionally provided with before CCD fiber spectrometers,
The interference of detection light and super continuum light spectrum can be effectively excluded, increases signal contrast so that measurement result is more accurate.
Brief description of the drawings
Fig. 1 is the schematic diagram on intersecting frequency domain correlation X-Frog Annual distribution measuring instruments that prior art is provided；
Fig. 2 is a kind of each spectrum composition Annual distribution of ultrafast super continuous spectrums and time one that the utility model embodiment is provided
Cause property measuring instrument.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
It is of the present utility model mainly to realize that thought is：The super continuous spectrums after beam are closed with detecting optical pulses through the first dichroscope
Afterwards, detection light therein and super continuous spectrums light are separated, the optical path direction of the super continuous spectrums light injects the two or two after being changed
To Look mirror, the light path of the detection light injects second dichroscope after being changed, and may be such that institute by adjusting light path
When stating detection light and the super continuous spectrums light respectively through light path between the first dichroscope, the second dichroscope, when meeting
Between essentially coincide (time difference be less than 20ps), and cause the detection light and the super continuous spectrums light by the described 2nd 2 to
After Look mirror, conllinear output is met；The detection light and super continuous spectrums light collinearly exported produces focal beam spot, irradiation by the first object lens
It is collected into flashlight to the sample for producing four-wave mixing flashlight, and by the second object lens and does collimation processing, obtains
Quasi-parallel flashlight；The flashlight filters out the detection light and super continuous spectrums light, obtains four after short wave pass filter
Wave mixing flashlight, then CCD fiber spectrometers are passed to after optical fiber collecting lens, to measure each spectrum composition Annual distribution
And time consistency.
Lower mask body introduces each spectrum composition Annual distribution of this ultrafast super continuous spectrums and time coherence measurement instrument, such as schemes
Shown in 2, including：
First dichroscope 201, the first total reflective mirror 202, the second total reflective mirror 203, the 3rd total reflective mirror 204, one dimension displacement platform
205th, the 4th total reflective mirror 206 and the second dichroscope 207.
First dichroscope 201 is placed with straight line where spectrum incident light to be measured in predetermined angle, the utility model
Embodiment is placed in 135 degree angles, first dichroscope 201 and first total reflective mirror 202, the second total reflective mirror 203, the
Two dichroscopes 207 are parallel, and second total reflective mirror 203 and the 3rd total reflective mirror 204 are positioned over the one dimension displacement platform 205
On, the plane where the one dimension displacement platform 205 and straight line parallel, second total reflective mirror where the spectrum incident light to be measured
203rd, the 3rd total reflective mirror 204 and the angle sum of the place plane of one dimension displacement platform 205 are complementary, the 4th total reflective mirror 206
It is parallel with the 3rd total reflective mirror 204.
The spectrum to be measured, which is injected, is separated into detection light and super continuous spectrums light after first dichroscope 201, from institute
The super continuous spectrums light of the first dichroscope 201 transmission is stated after first total reflective mirror 202 reflection, second dichroic is injected
Mirror 207；Detection light from first dichroscope 201 reflection is through second total reflective mirror 203, the 3rd total reflective mirror the 204, the 4th
After total reflective mirror 206 reflects, second dichroscope 207 is injected.
It should be noted that needing to adjust second total reflective mirror by adjusting the position of the one dimension displacement platform 205
203 and the 3rd total reflective mirror 204 position so that it is described detection light and the super continuous spectrums light respectively through the first dichroscope
201st, during light path between the second dichroscope 207, the time difference is met less than 20ps, while adjusting the 4th total reflective mirror 206 and the
Two dichroscopes 207, make the detection light and the super continuous spectrums light after second dichroscope 207, meet conllinear
Output.
The measuring instrument also includes：The first object lens that radiation direction is set gradually are projected along second dichroscope 207
208th, the second object lens 210, short wave pass filter 211, optical fiber collecting lens 212 and CCD fiber spectrometers 213；First thing
Sample 209 is placed between mirror 208 and second object lens 210.
Further, the measuring instrument also includes positioning collimating aperture 214, and the positioning collimating aperture 214 is arranged at described the
Between two dichroscopes 207 and first object lens 208, the positioning collimating aperture 214 is used to examine what the measuring instrument was included
Whether mechanical devices are installed stablizes, the stability of light path after the stability of mechanical devices is determined, if mechanical devices are unstable,
Light path is likely to deviate at any time afterwards, like this, and the signal of measurement will die down, or even disappears；Specific check system
Can be：A total reflective mirror is placed directly over first object lens 208, is adjusted and the fixed position for positioning collimating aperture 214,
Make vertically to inject in the positioning collimating aperture 214 from the detection light and super continuous spectrums light of the outgoing of the second dichroscope 207
The heart, can observe vertically inject the center of the positioning collimating aperture 214 again after the light path projected reflects through the total reflective mirror, from
And may determine that whether the mechanical devices install stabilization, and then ensure that instrument can carry out duplicate measurements and regulation.
Wherein, first object lens 208 and second object lens 210 are phase same material, same model, and first thing
Mirror 208 and second object lens 210 are identical with the distance between the sample respectively；First object lens 208 are used to inject
Detection light and super continuous spectrums light focus on, produce focal beam spot and simultaneously get on sample, so as to excite the sample 209 to produce signal
Light；Second object lens 210 are used to collect flashlight, and do collimation processing, make the quasi-parallel output of the flashlight.
Wherein, the sample 209 is vitreous silica or benzonitrile, and the vitreous silica is used to produce four-wave mixing off-resonance
Signal, the benzonitrile is used to produce four-wave mixing CARS (Coherent anti-Stokes Raman Scattering, phase
Dry anti-Stokes Raman scattering) signal.
Wherein, the short wave pass filter 211 is used to filter out the detection light and super continuous spectrums light in the flashlight, obtains
Four-wave mixing flashlight.
Further, a root multimode fiber is included between the optical fiber collecting lens 212 and CCD fiber spectrometers 213.
Wherein, the optical fiber collecting lens 212 is used for the four-wave mixing signal optically coupling in the multimode fibre,
So as to send into the CCD fiber spectrometers 213, to be measured to each spectrum composition Annual distribution and time consistency.
A kind of each spectrum composition Annual distribution of ultrafast super continuous spectrums that the utility model is provided and time coherence measurement instrument,
It is mainly used in measuring the distribution of each spectral component in time in ultrafast photonic crystal fiber, the utility model is compared to X-
Frog Annual distribution measuring instruments have simpler space structure, it is easy to adjust, and the data obtained are easily handled；Meanwhile,
Sample is also fairly simple, can voluntarily select according to actual needs, such as, and sample uses this cheap material of vitreous silica piece
；In addition, being additionally provided with short wave pass filter before the CCD fiber spectrometers, detection light and super continuum light can be excluded
The interference of spectrum so that measurement result is more accurate.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of each spectrum composition Annual distribution of ultrafast super continuous spectrums and time coherence measurement instrument, it is characterised in that including：
First dichroscope, the first light path steering assembly, the second light path steering assembly, the second dichroscope, the first object lens, second
Object lens, short wave pass filter, optical fiber collecting lens and CCD fiber spectrometers；
Wherein, first dichroscope and spectrum incident light to be measured are placed in predetermined angle, for by the spectrum to be measured of incidence
It is separated into the detection light of shortwave and the super continuous spectrums light of long wave；
The first light path steering assembly, for the direction of propagation of the super continuous spectrums light to be guided to second dichroic
Mirror；
The second light path steering assembly, for the direction of propagation of the detection light to be guided to second dichroscope；
Second dichroscope, for the incident detection light and the super continuous spectrums light collinearly to be exported；
First object lens, for will be focused on from the detection light of the second dichroscope outgoing and super continuous spectrums light, to produce
Focal beam spot is simultaneously got on sample, so as to excite sample to produce flashlight；
Second object lens, for collecting the flashlight, and do collimation processing so that the quasi-parallel output of the flashlight；
The short wave pass filter, for by from the detection light in the flashlight of the quasi-parallel output of the second object lens and super continuous
Spectrum light is filtered out；
The optical fiber collecting lens, for by by the signal of the short wave pass filter optically coupling in optical fiber, so as to send into
The CCD fiber spectrometers；
The CCD fiber spectrometers, are surveyed for each spectrum composition Annual distribution and time consistency to the flashlight
Amount.
2. each spectrum composition Annual distribution of ultrafast super continuous spectrums as claimed in claim 1 and time coherence measurement instrument, it is special
Levy and be, the first light path steering assembly includes the first total reflective mirror, first total reflective mirror is put down with first dichroscope
OK.
3. each spectrum composition Annual distribution of ultrafast super continuous spectrums as claimed in claim 2 and time coherence measurement instrument, it is special
Levy and be, the second light path steering assembly includes the second total reflective mirror, the 3rd total reflective mirror, one dimension displacement platform and the 4th total reflective mirror；
Second total reflective mirror and the 3rd total reflective mirror are positioned on the one dimension displacement platform, where the one dimension displacement platform
Plane and straight line parallel where the spectrum incident light to be measured, second total reflective mirror are parallel with first dichroscope, institute
State the second total reflective mirror, the 3rd total reflective mirror and the angle sum of plane where the one dimension displacement platform is complementary, the 4th total reflective mirror
It is parallel with the 3rd total reflective mirror.
4. each spectrum composition Annual distribution of ultrafast super continuous spectrums as claimed in claim 3 and time coherence measurement instrument, it is special
Levy and be, the predetermined angle is 45 degree or 135 degree.
5. each spectrum composition Annual distribution of ultrafast super continuous spectrums as claimed in claim 1 and time coherence measurement instrument, it is special
Levy and be, the measuring instrument also includes positioning collimating aperture, the positioning collimating aperture is arranged at second dichroscope and described
Between first object lens.
6. each spectrum composition Annual distribution of ultrafast super continuous spectrums as claimed in claim 1 and time coherence measurement instrument, it is special
Levy and be, first object lens, second object lens are equal with the distance between the sample respectively.
7. each spectrum composition Annual distribution of ultrafast super continuous spectrums as claimed in claim 1 and time coherence measurement instrument, it is special
Levy and be, the sample is vitreous silica or benzonitrile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621270246.1U CN206348271U (en) | 2016-11-22 | 2016-11-22 | Each spectrum composition Annual distribution of ultrafast super continuous spectrums and time coherence measurement instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621270246.1U CN206348271U (en) | 2016-11-22 | 2016-11-22 | Each spectrum composition Annual distribution of ultrafast super continuous spectrums and time coherence measurement instrument |
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| CN206348271U true CN206348271U (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621270246.1U Expired - Fee Related CN206348271U (en) | 2016-11-22 | 2016-11-22 | Each spectrum composition Annual distribution of ultrafast super continuous spectrums and time coherence measurement instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007571A (en) * | 2017-11-09 | 2018-05-08 | 天津大学 | CARS light beam spatial stability test control systems and method based on fiber coupling |
| CN108333157A (en) * | 2018-01-23 | 2018-07-27 | 深圳大学 | biomolecule three-dimensional dynamic analysis method and system |
| CN112326606A (en) * | 2020-09-11 | 2021-02-05 | 广州万孚生物技术股份有限公司 | In-vitro diagnosis and analysis system, optical detection device and motion disc module |
-
2016
- 2016-11-22 CN CN201621270246.1U patent/CN206348271U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007571A (en) * | 2017-11-09 | 2018-05-08 | 天津大学 | CARS light beam spatial stability test control systems and method based on fiber coupling |
| CN108007571B (en) * | 2017-11-09 | 2020-01-31 | 天津大学 | CARS light beam space stability test control system and method based on optical fiber coupling |
| CN108333157A (en) * | 2018-01-23 | 2018-07-27 | 深圳大学 | biomolecule three-dimensional dynamic analysis method and system |
| CN112326606A (en) * | 2020-09-11 | 2021-02-05 | 广州万孚生物技术股份有限公司 | In-vitro diagnosis and analysis system, optical detection device and motion disc module |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20181122 |