CN108775966B - Double-delay third-order correlator - Google Patents
Double-delay third-order correlator Download PDFInfo
- Publication number
- CN108775966B CN108775966B CN201811030194.4A CN201811030194A CN108775966B CN 108775966 B CN108775966 B CN 108775966B CN 201811030194 A CN201811030194 A CN 201811030194A CN 108775966 B CN108775966 B CN 108775966B
- Authority
- CN
- China
- Prior art keywords
- frequency
- light
- crystal
- delay
- spectroscope
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000013078 crystal Substances 0.000 claims abstract description 96
- 230000003287 optical effect Effects 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000009977 dual effect Effects 0.000 claims description 6
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000010287 polarization Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005307 time correlation function Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J11/00—Measuring the characteristics of individual optical pulses or of optical pulse trains
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Lasers (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The utility model discloses a dual-delay third-order correlator. In the device, the measured horizontal polarized spatially uniform square femtosecond fundamental frequency laser pulse is divided into transmitted light and reflected light after passing through a spectroscope, the transmitted light is divided into two beams, the two beams are simultaneously incident on a frequency doubling crystal at a horizontal symmetrical angle to generate a vertical polarized single-time autocorrelation frequency doubling signal, the frequency doubling signal and the reflected light beam of the spectroscope are simultaneously incident on a frequency summation crystal along a vertical plane to generate a double-delay third-order intensity correlation frequency doubling signal, and a pulse time waveform can be recovered through a simple recursion algorithm. The dual-delay third-order correlator reduces the complexity of a pulse recovery algorithm, improves the time accuracy, and has the advantages of low cost, simple structure and convenient adjustment.
Description
Technical Field
The utility model belongs to the technical field of ultrafast pulse laser testing, and particularly relates to a dual-delay third-order correlator.
Background
The time waveform of the ultrafast laser pulse can be accurately recovered by using the three-order correlation function of the dual delay intensity, the utility model patent (patent number: ZL 2016 2 0734206.1) named as a laser pulse waveform measuring device based on the three-order correlation method, the utility model patent (patent number: ZL 2016 2 0733875.7) named as an ultrashort laser pulse waveform measuring device, and the utility model patent (patent number: ZL 2017 2 1273418.7) named as a femtosecond laser pulse waveform measuring device respectively disclose a method for obtaining a pulse waveform by measuring the three-order intensity correlation signal of the dual delay, but because the transmission distance of a frequency doubling beam is longer, the spatial interference effect of the frequency doubling beam can generate intensity modulation, thereby increasing the complexity of a pulse recovery algorithm.
Disclosure of Invention
In order to overcome the defect of complexity of a pulse recovery algorithm in ultra-fast laser pulse waveform measurement in the existing measurement technology, the utility model provides a dual-delay third-order correlator.
The technical scheme adopted for solving the technical problems is as follows:
the utility model relates to a dual-delay third-order correlator which is characterized in that a spectroscope I is arranged in the incidence direction of a horizontal polarized space uniform square femtosecond laser pulse in the measuring device; the fundamental laser pulse is split into transmitted light and reflected light by a beam splitter I. A spectroscope II is arranged on the transmission light path; the transmitted light of beam splitter I is split again into transmitted light and reflected light by beam splitter II. A reflection mirror I, a delay adjuster I, a reflection mirror II and a nonlinear crystal component are sequentially arranged on a transmission light path of the spectroscope II, and a reflection mirror III is arranged on a reflection light path of the spectroscope II; the transmitted light of the spectroscope II is reflected to the delay regulator I through the reflector I to be projected to the reflector II after optical path delay; the beam reflected from the beam splitter II is reflected by the reflecting mirror III and then projected onto the nonlinear crystal component to be subjected to frequency multiplication with the beam reflected from the reflecting mirror II, so as to generate a frequency multiplication beam. A delay regulator II and a light guide lens group are sequentially arranged on the reflection light path of the spectroscope I; the light beam reflected by the spectroscope I is projected to the light guide lens group after being subjected to optical path delay by the delay adjuster II, the light beam emitted from the light guide lens group is projected to the nonlinear crystal component obliquely downwards, the light beam is subjected to frequency tripling conversion with the frequency doubling light beam, and the frequency tripling light beam is output after the nonlinear crystal component. A lens, a filter and a CCD are arranged in the direction of the frequency tripled light beam output by the nonlinear crystal component; the triple frequency light beam on the back surface of the nonlinear crystal component is focused by a lens, and the fundamental frequency light beam and the double frequency light beam are filtered by a filter and then imaged on a CCD. The CCD is externally connected with a computer, and signals from the CCD finally enter the computer for data processing.
The nonlinear crystal component consists of two crystals; the frequency doubling crystal and the frequency summation crystal are sequentially arranged; the optical axis of the frequency doubling crystal is along the vertical direction, the optical axis of the frequency summation crystal is along the horizontal direction, and the frequency summation crystal is clung to the rear of the frequency doubling crystal; the light beam reflected from the reflector II and the light beam reflected from the reflector III are incident on the frequency doubling crystal along the horizontal plane at a symmetrical angle matched with the phase, the two light beams intersect at the center of the frequency doubling crystal, frequency doubling conversion is realized in the overlapping area of the two light beams in the frequency doubling crystal, and generated frequency doubling light is output along the direction vertical to the surface of the frequency doubling crystal; the frequency multiplication light emitted from the frequency multiplication crystal and the fundamental frequency light from the light guide lens group are projected onto the frequency summation crystal II at the same time along the vertical plane at a vector phase matching angle, the two light beams intersect at the center of the frequency summation crystal II, the frequency tripling conversion is realized in the overlapping area of the two light beams, the frequency tripled double-delay third-order related signal is generated, and the third-order related signal light is output along the rear surface of the frequency summation crystal II.
The light guide lens group consists of two light guide lenses which are vertically and orthogonally arranged; a light guide mirror I and a light guide mirror II are sequentially arranged in the transmission direction of the fundamental frequency laser pulse; the light guide lens I projects the incident horizontal light beam vertically upwards, and the light guide lens II projects the vertical upwards projected light beam obliquely downwards; the obliquely downward projected beam is perpendicular to the incident horizontal beam.
The frequency doubling crystal I and the sum frequency crystal II adopt 90 o And (3) non-collinear ooe matching, and selecting different crystal materials such as BBO, KDP and the like according to different incident laser wavelengths.
The beneficial effects of the utility model are as follows:
1. the dual-delay third-order correlator has the advantages of low cost, simple structure, convenient adjustment, close adhesion of the frequency doubling crystal to the frequency summation crystal, elimination of the spatial interference effect of the frequency doubling light beam and reduction of the complexity of the pulse recovery algorithm.
2. In the utility model, two light guides which are orthogonal up and down are adopted to change the polarization state of the light beam, so that the compactness of the dual-delay third-order correlator is improved.
Drawings
FIG. 1 is a schematic diagram of an optical path of a dual delay third order correlator according to the present utility model;
FIG. 2 is a schematic diagram of the optical path of a nonlinear crystal element in the present utility model;
FIG. 3 is a schematic view of the light path of the light guide lens set of the present utility model;
in the figure, a spectroscope I2, a spectroscope II 3, a reflector I4, a delay adjuster I5, a reflector II 6, a nonlinear crystal component 7, a reflector III 8, a delay adjuster II 9, a light guide lens group 10, a lens 11, a filter 12, a CCD 6-1, a frequency doubling crystal 6-2, a sum frequency crystal 9-1, a light guide lens I9-2 and a light guide lens II are shown.
Detailed Description
The utility model is further illustrated in the following figures and examples, which should not be taken to limit the scope of the utility model.
Example 1
FIG. 1 is a schematic diagram of a dual delay third order correlator in accordance with the present utility model; FIG. 2 is a schematic view of the optical path of the nonlinear crystal element of the present utility model, which is an A-direction side view of the nonlinear crystal element of FIG. 1; fig. 3 is a schematic view of the light path of the light guiding lens set of the present utility model, which is a side view of the light guiding lens set of fig. 1 in the B direction. In fig. 1-3, a spectroscope i 1 is arranged in the incidence direction of a horizontally polarized spatially uniform square femtosecond laser pulse in the dual-delay third-order correlator of the present utility model; the fundamental frequency laser pulse is divided into transmitted light and reflected light by a spectroscope I1; a spectroscope II 2 is arranged on the transmission light path; the transmitted light of the spectroscope I1 is divided into transmitted light and reflected light again through the spectroscope II 2; a reflecting mirror I3, a delay adjuster I4, a reflecting mirror II 5 and a nonlinear crystal component 6 are sequentially arranged on a transmission light path of the spectroscope II 2, and a reflecting mirror III 7 is arranged on a reflection light path of the spectroscope II 2; the transmitted light of the spectroscope II 2 is reflected to the delay adjuster I4 through the reflector I3 to be projected to the reflector II 5 after the optical path delay; the light beam reflected from the spectroscope II 2 is reflected by the reflecting mirror III 7 and then projected onto the nonlinear crystal component 6 to be subjected to frequency multiplication conversion together with the light beam reflected from the reflecting mirror II 5, so as to generate a frequency multiplication light beam; a delay regulator II 8 and a light guide lens group 9 are sequentially arranged on the reflection light path of the spectroscope I1; the light beam reflected by the spectroscope I1 is projected to the light guide lens group 9 after being subjected to optical path delay by the delay adjuster II 8, the light beam emitted from the light guide lens group 9 is projected downwards obliquely to the nonlinear crystal component 6, and is subjected to frequency tripling conversion with the frequency doubling light beam, and the frequency tripling light beam is output after the nonlinear crystal component 6; a lens 10, a filter 11 and a CCD12 are arranged in the direction of the frequency tripled light beam output by the nonlinear crystal component 6; the triple frequency light beam on the rear surface of the nonlinear crystal component 6 is focused by a lens 10, and the fundamental frequency and the double frequency light beam are filtered by a filter 11 and then imaged on a CCD12; the CCD12 is externally connected with a computer, and signals from the CCD12 finally enter the computer for data processing.
The nonlinear crystal component 6 is composed of two crystals; the frequency doubling crystal 6-1 and the sum frequency crystal 6-2 are sequentially arranged; the optical axis of the frequency doubling crystal 6-1 is along the vertical direction, the optical axis of the sum frequency crystal 6-2 is along the horizontal direction, and the sum frequency crystal 6-2 is tightly attached to the rear of the frequency doubling crystal 6-1; the light beam reflected from the reflecting mirror II 5 and the light beam reflected from the reflecting mirror III 7 are incident on the frequency doubling crystal 6-1 along the horizontal plane at a symmetrical angle matched with each other, the two light beams intersect at the center of the frequency doubling crystal 6-1, frequency doubling conversion is realized in the overlapping area of the two light beams in the frequency doubling crystal 6-1, and the generated frequency doubling light is output along the direction vertical to the surface of the frequency doubling crystal 6-1; the frequency multiplication light emitted from the frequency multiplication crystal 6-1 and the fundamental frequency light from the light guide lens group 9 are projected onto the sum frequency crystal II 6-2 at the same time along the vertical plane at a vector phase matching angle, the two light beams intersect at the center of the sum frequency crystal II 6-2, the frequency multiplication conversion is realized in the overlapping area of the two light beams, the frequency multiplication double delay third-order related signal is generated, and the third-order related signal light is output along the rear surface of the sum frequency crystal II 6-2; as shown in fig. 2.
The light guide lens group 9 consists of two light guide lenses which are vertically and orthogonally arranged; the light guide mirror I9-1 and the light guide mirror II 9-2 are sequentially arranged in the transmission direction of the fundamental frequency laser pulse; the light guide lens I9-1 projects the incident horizontal light beam vertically upwards, and the light guide lens II 9-2 projects the vertical upwards projected light beam obliquely downwards; the obliquely downward projected beam is perpendicular to the incident horizontal beam as shown in fig. 3.
The frequency doubling crystal I6-1 and the sum frequency crystal II 6-2 adopt 90 o Non-collinear ooe matching, KDP crystal material is selected in the embodiment.
The light guide lens group 9 converts the fundamental frequency laser pulse from horizontal polarization to vertical polarization.
The frequency doubling crystal I6-1 converts a horizontally polarized and spatially uniform fundamental frequency laser pulse time signal I (t) into a vertically polarized laser pulse time signal I (t),Frequency-doubled signal G modulated in horizontal direction (2) (x 1 ) The sum frequency crystal II 6-2 sums the frequency of the fundamental frequency pulse light and the frequency multiplication light along the vertical plane to convert the fundamental frequency pulse light and the frequency multiplication light into a double-delay third-order related signal G (3) (x,y)。
The delay regulators I4 and II 8 not only can determine the double-delay third-order related signal G (3) Zero point of (x, y), G can be extended (3) (x, y) field of view range.
The basic principle of the dual-delay third-order correlator for femtosecond laser pulse waveform measurement is as follows: using a dual-delay third-order intensity time correlation function G (3) (τ 1 , τ 2 ) The temporal shape of the pulses can be uniquely determined; obtaining a directly measurable double-delay third-order space-related signal G by means of non-collinear frequency conversion of a frequency doubling crystal and a frequency summation crystal (3) (x, y), and then converted into a double-delay third-order intensity time correlation function G by simple time-space coordinate transformation (3) (τ 1 , τ 2 ) The pulse shape I (t) is then recovered by a simple recursive algorithm.
In the embodiment, the central wavelength of the incident laser pulse is 800nm, the pulse width is about 0.1ps, the energy is about 10mJ, the aperture of the light beam is 1cm, the horizontal polarization is realized, the frequency doubling crystal 6-1 and the sum frequency crystal 6-2 are made of KDP materials, and non-collinear ooe phase matching is adopted. The two fundamental frequency beams reflected from the mirror II 5 and the mirror III 7 are reflected by about 30 o Is symmetrically incident on the frequency doubling crystal 6-1 along the horizontal direction, and the generated frequency doubling light beam is output along the normal direction of the surface of the frequency doubling crystal 6-1, and the frequency doubling light beam and the fundamental frequency light beam from the light guide lens group 9 are about 17 o Is incident on the sum frequency crystal 6-2 in the vertical direction with the incidence angle of the fundamental frequency beam being about 11.8 0 The incidence angle of the doubled light is about 5.8 0 Generating triple frequency light in the beam overlapping area, and outputting the generated triple frequency light along the normal direction of the surface of the sum frequency crystal 6-2, wherein the triple frequency light recorded by the CCD12 is a double-delay third-order related signal
The method comprises the steps of carrying out a first treatment on the surface of the Here α≡14.73 o ，β≈11.78 o ，ε≈5.86 o Fundamental frequency, frequency multiplication group velocity u 1ν 、u 2ν The numerical values of (2) are obtained according to an optical manual, and finally, data processing is carried out through a computer to obtain the laser pulse waveform distribution I (t). />
Claims (3)
1. The utility model provides a two delay third order correlators which characterized in that: a spectroscope I (1) is arranged in the incidence direction of the horizontal polarized space uniform square femtosecond laser pulse; the fundamental frequency laser pulse is divided into transmitted light and reflected light by a spectroscope I (1); a spectroscope II (2) is arranged on the transmission light path; the transmitted light of the spectroscope I (1) is divided into transmitted light and reflected light again through the spectroscope II (2); a reflecting mirror I (3), a delay adjuster I (4), a reflecting mirror II (5) and a nonlinear crystal component (6) are sequentially arranged on a transmission light path of a spectroscope II (2), and a reflecting mirror III (7) is arranged on a reflection light path of the spectroscope II (2); the transmitted light of the spectroscope II (2) is reflected to the delay adjuster I (4) through the reflector I (3) to be projected to the reflector II (5) after the optical path delay; the light beam reflected from the spectroscope II (2) is reflected by the reflecting mirror III (7) and then projected onto the nonlinear crystal component (6) to perform frequency multiplication conversion with the light beam reflected from the reflecting mirror II (5) at the same time, so as to generate a frequency multiplication light beam; a delay regulator II (8) and a light guide lens group (9) are sequentially arranged on the reflection light path of the spectroscope I (1); the light beam reflected by the spectroscope I (1) is projected to the light guide lens group (9) after being subjected to optical path delay by the delay adjuster II (8), the light beam emitted from the light guide lens group (9) is projected onto the nonlinear crystal component (6) obliquely downwards, and is subjected to frequency tripling conversion with the frequency doubling light beam, and the frequency tripling light beam is output after the nonlinear crystal component (6); a lens (10), a filter (11) and a CCD (12) are arranged in the direction of the frequency tripled light beam output by the nonlinear crystal component (6); the triple frequency light beam on the rear surface of the nonlinear crystal component (6) is focused by a lens (10), and the fundamental frequency light beam and the double frequency light beam are filtered by a filter (11) and then imaged on a CCD (12); the CCD (12) is externally connected with a computer, and signals from the CCD (12) finally enter the computer for data processing; the nonlinear crystal component (6) is composed of two crystals, namely a frequency doubling crystal I (6-1) and a frequency mixing crystal II (6-2); the frequency doubling crystal I (6-1) and the sum frequency crystal II (6-2) are sequentially arranged; the optical axis of the frequency doubling crystal I (6-1) is along the vertical direction, the optical axis of the sum frequency crystal II (6-2) is along the horizontal direction, and the sum frequency crystal II (6-2) is clung to the back of the frequency doubling crystal I (6-1); the light beam reflected from the reflecting mirror II (5) and the light beam reflected from the reflecting mirror III (7) are incident on the frequency doubling crystal I (6-1) along the horizontal plane at a symmetrical angle matched with the phase, the two light beams intersect at the center of the frequency doubling crystal I (6-1), frequency doubling conversion is realized in the overlapping area of the two light beams in the frequency doubling crystal I (6-1), and the generated frequency doubling light is output along the direction vertical to the surface of the frequency doubling crystal I (6-1); the frequency multiplication light emitted from the frequency multiplication crystal I (6-1) and the fundamental frequency light from the light guide lens group (9) are projected onto the sum frequency crystal II (6-2) simultaneously along a vertical plane at a vector phase matching angle, the two light beams intersect at the center of the sum frequency crystal II (6-2), the frequency multiplication conversion is realized in the overlapping area of the two light beams, the frequency multiplication double delay third-order related signals are generated, and the third-order related signal light is output along the rear surface of the sum frequency crystal II (6-2).
2. The dual delay third order correlator as set forth in claim 1 wherein: the light guide lens group (9) consists of two light guide lenses which are vertically and orthogonally arranged; a light guide mirror I (9-1) and a light guide mirror II (9-2) are sequentially arranged in the transmission direction of the fundamental frequency laser pulse; the light guide lens I (9-1) projects the incident horizontal light beam vertically upwards, and the light guide lens II (9-2) projects the vertical upwards projected light beam obliquely downwards; the obliquely downward projected beam is perpendicular to the incident horizontal beam.
3. The dual delay third order correlator as set forth in claim 1 wherein: the frequency doubling crystal I (6-1) and the frequency summation crystal II (6-2) are matched by adopting non-collinear ooe of 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030194.4A CN108775966B (en) | 2018-09-05 | 2018-09-05 | Double-delay third-order correlator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030194.4A CN108775966B (en) | 2018-09-05 | 2018-09-05 | Double-delay third-order correlator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108775966A CN108775966A (en) | 2018-11-09 |
| CN108775966B true CN108775966B (en) | 2023-06-09 |
Family
ID=64028940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811030194.4A Active CN108775966B (en) | 2018-09-05 | 2018-09-05 | Double-delay third-order correlator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108775966B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506792A (en) * | 2019-01-16 | 2019-03-22 | 中国工程物理研究院激光聚变研究中心 | A kind of single-shot time autocorrelation function analyzer |
| CN109682484A (en) * | 2019-02-01 | 2019-04-26 | 中国工程物理研究院激光聚变研究中心 | A kind of single-shot time femto-second laser pulse waveform meter |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0818670A1 (en) * | 1996-07-09 | 1998-01-14 | Council For The Central Laboratory Of The Research Councils | Optical pulse autocorrelator |
| JP2000249604A (en) * | 1999-02-26 | 2000-09-14 | Teratekku:Kk | Optical sampling waveform observing device |
| JP2000356555A (en) * | 1999-06-15 | 2000-12-26 | Hamamatsu Photonics Kk | Light pulse waveform-measuring device |
| JP2002286553A (en) * | 2001-03-23 | 2002-10-03 | Nippon Telegr & Teleph Corp <Ntt> | Method and instrument for measuring time waveform of light signal electric field |
| JP2003106903A (en) * | 2001-09-27 | 2003-04-09 | Inst Of Physical & Chemical Res | Autocorrelation measuring device |
| CN2850072Y (en) * | 2005-06-08 | 2006-12-20 | 吴砺 | Microchip type multiple frequency laser |
| CN201113204Y (en) * | 2007-09-14 | 2008-09-10 | 福州高意通讯有限公司 | In cavity multiple frequency microchip laser |
| CN101271026A (en) * | 2008-02-01 | 2008-09-24 | 北京工业大学 | Femtosecond laser burst self-correlation tester and method thereof |
| CN101762332A (en) * | 2009-12-17 | 2010-06-30 | 中国工程物理研究院激光聚变研究中心 | Single ultrashort laser pulse contrast measuring device |
| CN102175334A (en) * | 2011-03-01 | 2011-09-07 | 复旦大学 | Pulse signal noise ratio (SNR) single shot measurement device based on anharmonic wave long wavelength sampling light |
| CN202695966U (en) * | 2011-12-12 | 2013-01-23 | 湖北工业大学 | Double-end-pumped intracavity sum-frequency 355nm-wavelength ultraviolet solid-state laser |
| CN103199430A (en) * | 2013-03-20 | 2013-07-10 | 厦门大学 | Frequency doubling self-regulating Q green laser inside double-doped chrome yttrium aluminum garnet composite photassium titanyl phosphate cavity |
| CN104009388A (en) * | 2014-04-03 | 2014-08-27 | 青岛镭视光电科技有限公司 | Three-wavelength laser and working method thereof |
| CN104075815A (en) * | 2014-06-26 | 2014-10-01 | 中国科学院西安光学精密机械研究所 | Signal-to-noise ratio measuring device and method based on single pulse generating pulse sequence |
| CN104682185A (en) * | 2013-11-26 | 2015-06-03 | 同方威视技术股份有限公司 | Method for improving stability of ultra-short laser frequency-doubling energy |
| CN105549295A (en) * | 2016-03-14 | 2016-05-04 | 山东大学 | Ultraviolet laser frequency converter with noncritical phase matching frequency doubling and three-frequency doubling performance and work method of ultraviolet laser frequency converter |
| CN106052886A (en) * | 2016-07-13 | 2016-10-26 | 中国工程物理研究院激光聚变研究中心 | Laser pulse shape measurer based on third-order correlation method |
| CN205808565U (en) * | 2016-07-13 | 2016-12-14 | 中国工程物理研究院激光聚变研究中心 | A kind of ultrashort laser pulse waveform meter |
| CN205940777U (en) * | 2016-07-13 | 2017-02-08 | 中国工程物理研究院激光聚变研究中心 | Laser pulse shape measuring device based on third -order correlation method |
| CN107677379A (en) * | 2017-09-30 | 2018-02-09 | 中国工程物理研究院激光聚变研究中心 | A kind of femto-second laser pulse waveform meter |
| CN208953135U (en) * | 2018-09-05 | 2019-06-07 | 中国工程物理研究院激光聚变研究中心 | A kind of double delay third-order relevant instruments |
| CN213516040U (en) * | 2017-10-06 | 2021-06-22 | 费姆托伊西公司 | Single-shot optical autocorrelation device for analyzing ultrashort laser pulses and optical analysis assembly |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6785471B2 (en) * | 2001-06-20 | 2004-08-31 | Agilent Technologies, Inc. | Optical sampling using intermediate second harmonic frequency generation |
| JP3498141B2 (en) * | 2001-07-12 | 2004-02-16 | 株式会社デバイス・ナノテク・リサーチ・インスティチュート | Optical pulse evaluation method, optical pulse evaluation device, and optical communication system |
| CN104089710B (en) * | 2014-07-30 | 2017-02-15 | 上海交通大学 | Far field pulse signal-to-noise ratio measurement method and device based on temporal-spatial resolution |
-
2018
- 2018-09-05 CN CN201811030194.4A patent/CN108775966B/en active Active
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0818670A1 (en) * | 1996-07-09 | 1998-01-14 | Council For The Central Laboratory Of The Research Councils | Optical pulse autocorrelator |
| JP2000249604A (en) * | 1999-02-26 | 2000-09-14 | Teratekku:Kk | Optical sampling waveform observing device |
| JP2000356555A (en) * | 1999-06-15 | 2000-12-26 | Hamamatsu Photonics Kk | Light pulse waveform-measuring device |
| JP2002286553A (en) * | 2001-03-23 | 2002-10-03 | Nippon Telegr & Teleph Corp <Ntt> | Method and instrument for measuring time waveform of light signal electric field |
| JP2003106903A (en) * | 2001-09-27 | 2003-04-09 | Inst Of Physical & Chemical Res | Autocorrelation measuring device |
| CN2850072Y (en) * | 2005-06-08 | 2006-12-20 | 吴砺 | Microchip type multiple frequency laser |
| CN201113204Y (en) * | 2007-09-14 | 2008-09-10 | 福州高意通讯有限公司 | In cavity multiple frequency microchip laser |
| CN101271026A (en) * | 2008-02-01 | 2008-09-24 | 北京工业大学 | Femtosecond laser burst self-correlation tester and method thereof |
| CN101762332A (en) * | 2009-12-17 | 2010-06-30 | 中国工程物理研究院激光聚变研究中心 | Single ultrashort laser pulse contrast measuring device |
| CN102175334A (en) * | 2011-03-01 | 2011-09-07 | 复旦大学 | Pulse signal noise ratio (SNR) single shot measurement device based on anharmonic wave long wavelength sampling light |
| CN202695966U (en) * | 2011-12-12 | 2013-01-23 | 湖北工业大学 | Double-end-pumped intracavity sum-frequency 355nm-wavelength ultraviolet solid-state laser |
| CN103199430A (en) * | 2013-03-20 | 2013-07-10 | 厦门大学 | Frequency doubling self-regulating Q green laser inside double-doped chrome yttrium aluminum garnet composite photassium titanyl phosphate cavity |
| CN104682185A (en) * | 2013-11-26 | 2015-06-03 | 同方威视技术股份有限公司 | Method for improving stability of ultra-short laser frequency-doubling energy |
| CN104009388A (en) * | 2014-04-03 | 2014-08-27 | 青岛镭视光电科技有限公司 | Three-wavelength laser and working method thereof |
| CN104075815A (en) * | 2014-06-26 | 2014-10-01 | 中国科学院西安光学精密机械研究所 | Signal-to-noise ratio measuring device and method based on single pulse generating pulse sequence |
| CN105549295A (en) * | 2016-03-14 | 2016-05-04 | 山东大学 | Ultraviolet laser frequency converter with noncritical phase matching frequency doubling and three-frequency doubling performance and work method of ultraviolet laser frequency converter |
| CN106052886A (en) * | 2016-07-13 | 2016-10-26 | 中国工程物理研究院激光聚变研究中心 | Laser pulse shape measurer based on third-order correlation method |
| CN205808565U (en) * | 2016-07-13 | 2016-12-14 | 中国工程物理研究院激光聚变研究中心 | A kind of ultrashort laser pulse waveform meter |
| CN205940777U (en) * | 2016-07-13 | 2017-02-08 | 中国工程物理研究院激光聚变研究中心 | Laser pulse shape measuring device based on third -order correlation method |
| CN107677379A (en) * | 2017-09-30 | 2018-02-09 | 中国工程物理研究院激光聚变研究中心 | A kind of femto-second laser pulse waveform meter |
| CN213516040U (en) * | 2017-10-06 | 2021-06-22 | 费姆托伊西公司 | Single-shot optical autocorrelation device for analyzing ultrashort laser pulses and optical analysis assembly |
| CN208953135U (en) * | 2018-09-05 | 2019-06-07 | 中国工程物理研究院激光聚变研究中心 | A kind of double delay third-order relevant instruments |
Non-Patent Citations (5)
| Title |
|---|
| Energy measurement system of a large-aperture high power laser experiment platform;Yanwen Xia 等;High power laser science and engineer;126-131 * |
| High dynamic range third-order correlation measurement of picosecond laser pulse shapes;S Luan 等;Measurement science and technology;1426-1429 * |
| 提高飞秒超强激光脉冲对比度的新方法;王兆华;魏志义;张杰;;物理(第06期);68-73 * |
| 超短激光脉冲波形的单次测量技术;夏彦文 等;物理学报;044204-1-044204-7 * |
| 高功率超短激光脉冲特性的三阶相关测量;王宁煜 等;中国激光;1208002-1-1208002-5 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108775966A (en) | 2018-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107677379B (en) | Femtosecond laser pulse waveform measuring device | |
| CN102353465B (en) | Time pulse width measurement system for ultrashort pulses in different spatial positions and measurement method thereof | |
| CN106197693B (en) | A kind of ultrashort laser pulse waveform meter | |
| CN102661917B (en) | Two-tone femtosecond laser collinear pumping detecting thermal reflection system | |
| CN106052886B (en) | Laser pulse waveform measuring device based on third-order correlation method | |
| CN108885138B (en) | Pulse light waveform measuring method and waveform measuring device | |
| CN105988261B (en) | A kind of vortex light field generation device | |
| CN103698025A (en) | Domain wall-based nonlinear impulse autocorrelation measuring method and measuring device | |
| CN108775966B (en) | Double-delay third-order correlator | |
| CN205940777U (en) | Laser pulse shape measuring device based on third -order correlation method | |
| CN110233417B (en) | Device for improving diamond Raman laser efficiency | |
| CN205808565U (en) | A kind of ultrashort laser pulse waveform meter | |
| CN105548722A (en) | Measuring system of ferromagnetic material terahertz dielectric constant | |
| CN103134600A (en) | Autocorrelator | |
| CN204330141U (en) | A kind of apparatus for measuring high power ultra-short laser pulse contrast | |
| CN107505054A (en) | Real-time in-situ Ps Laser Pulse autocorrelation function analyzer | |
| CN106248636B (en) | A method of measurement material nonlinearity absorption curve | |
| CN102944313A (en) | Multifunctional femtosecond laser pulse measuring device | |
| CN200993600Y (en) | Polarized semiconductor photo diode self-correlation measuring device | |
| CN109060151A (en) | A kind of subnanosecond laser pulse contrast measuring device | |
| CN208953135U (en) | A kind of double delay third-order relevant instruments | |
| CN219201337U (en) | Terahertz near-field detector | |
| CN100424483C (en) | Ultrashort pulse frequency resolution optical switching method measuring device | |
| CN102778301B (en) | Real-time measuring device of self-reference spectrum interference femtosecond laser pulse | |
| CN203224435U (en) | Terahertz time-space resolved imaging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |