CN107492778A - Low pressure excited Raman light-source system device - Google Patents
Low pressure excited Raman light-source system device Download PDFInfo
- Publication number
- CN107492778A CN107492778A CN201710811977.5A CN201710811977A CN107492778A CN 107492778 A CN107492778 A CN 107492778A CN 201710811977 A CN201710811977 A CN 201710811977A CN 107492778 A CN107492778 A CN 107492778A
- Authority
- CN
- China
- Prior art keywords
- low pressure
- raman
- air pressure
- light
- control valve
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
- H01S3/036—Means for obtaining or maintaining the desired gas pressure within the tube, e.g. by gettering, replenishing; Means for circulating the gas, e.g. for equalising the pressure within the tube
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/30—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
- H01S3/305—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects in a gas
Abstract
The invention discloses low pressure excited Raman light-source system device, including, ultraviolet pump laser, condenser lens, Intelligent air pressure sensing device, ventilating control valve, low pressure Raman pipe, impurity filtering device and laser aligner；Wherein ultraviolet pump laser transmitting laser is injected in low pressure Raman pipe by condenser lens is poly-, final directive laser aligner；Wherein the low pressure Raman pipe installation has for monitoring the Intelligent air pressure sensing device of air pressure in low pressure Raman pipe, the ventilating control valve for supplementing air pressure and the impurity filtering device for removing impurity in light path gas；Wherein described Intelligent air pressure sensing device is electrically connected with ventilating control valve.The present invention is designed using low pressure, it is improved the security of Raman pipe device, ensure that air pressure is kept constant in Raman pipe, improves the stability of laser energy, effective service life of Raman pipe device is improved by impurity filtering device by the design of Intelligent air pressure sensing and ventilating control valve.
Description
Technical field
The present invention relates to Raman light source technical field, specially a kind of low pressure excited Raman light-source system device.
Background technology
Raman spectroscopy can test and analyze the composition of material from molecular level, and it has direct, lossless, quick etc. excellent
Point, the technology are widely used to the fields such as commodity inspection, work environmental protection, change, biomedicine, therefore greatly develop raman laser technology and be
The important research direction of currently associated scientific and technological circle.
The device for the generation multi-wavelength excited Raman light that Chinese invention patent Publication No. CN103185712A is provided, its core
Heart technology is as follows, and it is made up of the condenser lens on laser and its output light path, Raman pipe and collimating components, particularly laser
Frequency multiplier is equipped with light path between device and condenser lens, filled with the mixed gas that air pressure is 1.2~3.4MPa, mixing in Raman pipe
Gas is made up of deuterium, hydrogen and helium, and its mutual ratio is 0.8~1.2: 0.23~0.27: 0.29~0.33；It is described
The focal length of condenser lens be 30~60cm, described collimating components are combined by the concavees lens of same optical axis with meniscus,
Wherein, the focal length of concavees lens is -30~60cm, and the focal length of meniscus is 20~30cm.It is poor that it not only can directly provide ozone
The wavelength pair divided required for absorption lidar, can also be separately as the transmitting light source of laser radar, while it is same to launch multi-wavelength
The differential laser beam of light beam.
The same light beam of multi-wavelength can be launched by wherein producing the device of multi-wavelength excited Raman light, due in advance by Raman pipe
Air pressure set in advance, cause the less stable of laser and larger by the influence degree of measuring environment, and light path gas
Impurity in body can not remove, and cause the service life of Raman pipe limited.The present invention is designed using low pressure, is improved Raman pipe
The security of device, ensure that air pressure is kept constant in Raman pipe, is improved by the design of Intelligent air pressure sensing and ventilating control valve
The stability of laser energy and the environmental suitability of system, effective use of Raman pipe device is improved by impurity filtering device
Cycle.
The content of the invention
It is an object of the invention to provide low pressure excited Raman light-source system device, to solve what is proposed in background technology
Problem.
To achieve the above object, the present invention provides following technical scheme：
A kind of low pressure excited Raman light-source system device, including：
Ultraviolet pump laser, condenser lens, Intelligent air pressure sensing device, ventilating control valve, low pressure Raman pipe, impurity filter
Except device and laser aligner；
Wherein, ultraviolet pump laser transmitting light into light two and injects low pressure Raman pipe once over-focusing lens focus
In；
Wherein, having for the low pressure Raman pipe installation senses dress for monitoring the Intelligent air pressure of air pressure in low pressure Raman pipe
Put, the ventilating control valve for supplementing air pressure and the impurity filtering device for removing impurity in light path gas；
Wherein, described Intelligent air pressure sensing device is electrically connected with ventilating control valve；
Wherein, laser aligner is located at the side that low pressure Raman pipe scatters light three, and light three is changed into parallel
Light four projects.
Preferably, described Intelligent air pressure sensing device is high sensitivity baroceptor.
Preferably, described ventilating control valve is the pneumatic supply with positive and negative air-pressure.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention launches Ultra-Violet Laser by ultraviolet pump laser, by condenser lens, focuses on filled with active gases
Low pressure Raman pipe device in, caused excited Raman light, parallel light output is become by laser aligner.Wherein use low gas
Pressure design, the security of Raman pipe device is improved, ensured by the design of Intelligent air pressure sensing and ventilating control valve in Raman pipe
Air pressure keeps constant, improves the stability of laser energy, effective use of Raman pipe device is improved by impurity filtering device
Cycle.
Brief description of the drawings
Fig. 1 is the structure chart of the present invention；
Fig. 2 is flow chart of the embodiment of the present invention；
In figure：1 ultraviolet pump laser, 2 condenser lenses, 3 Intelligent air pressure sensing devices, 4 ventilating control valves, 5 low pressure are drawn
Graceful pipe, 6 impurity filtering devices, 7 laser aligners, 01 light one, 02 light two, 03 light three, 04 light four.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment：
As depicted in figs. 1 and 2, low pressure excited Raman light-source system device, including：Ultraviolet pump laser 1, focus on thoroughly
Mirror 2, Intelligent air pressure sensing device 3, ventilating control valve 4, low pressure Raman pipe 5, impurity filtering device 6 and laser aligner 7.
It is poly- by condenser lens 2 to launch light 1 for ultraviolet pump laser 1 wherein after ultraviolet pump laser 1 is opened
Jiao is into light 2 02 and injects in low pressure Raman pipe 5.
Air pressure in air pressure sensing device 3 detects low pressure Raman pipe 5 in real time, when air pressure is not in the scope of normal work
When, air pressure sensing device 3 sends electric signal instruction control ventilating control valve 4 and positive air pressure or negative is inputted into low pressure Raman pipe 5
Air pressure so that in the range of setting, gaseous impurity is produced in low pressure Raman pipe 5 all the time for the air pressure in low pressure Raman pipe 5
Afterwards, the gaseous impurity in low pressure Raman pipe 5 is removed by impurity filtering device 6, reduces the probability of impurity pollution optical window, make
Light can normally by the system device, wherein the low pressure Raman pipe 5 installation have Intelligent air pressure sensing device 3,
Ventilating control valve 4 and impurity filtering device 6.
To being focused into light 2 02 by condenser lens 2 and injecting low pressure Raman in the normal low pressure Raman pipe 5 of air pressure
Light 2 02 is scattered in pipe 5, and the light 2 02 after scattering is transformed into light 3 03, and light 3 03 passes through laser aligner 7,
Wherein laser alignment 7 is located at the side that low pressure Raman pipe 5 scatters light 3 03, and light 3 03 is changed into parallel rays four
04 projects, and light 4 04 is used in the equipment of required light source.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (3)
- A kind of 1. low pressure excited Raman light-source system device, it is characterised in that including：Ultraviolet pump laser (1), condenser lens (2), Intelligent air pressure sensing device (3), ventilating control valve (4), low pressure Raman Manage (5), impurity filtering device (6) and laser aligner (7)；Wherein, ultraviolet pump laser (1) transmitting light one (01) is focused into light two (02) and injected by condenser lens (2) In low pressure Raman pipe (5)；Wherein, the Intelligent air pressure sensing dress having for monitoring air pressure in low pressure Raman pipe (5) of low pressure Raman pipe (5) installation Put (3), the ventilating control valve (4) for supplementing air pressure and the impurity filtering device (6) for removing impurity in light path gas；Wherein, described Intelligent air pressure sensing device (3) is electrically connected with ventilating control valve (4)；Wherein, laser aligner (7) is located at the side that low pressure Raman pipe (5) scatters light three (03), and by light three (03) Change into parallel rays four (04) injection.
- A kind of 2. low pressure excited Raman light-source system device according to claim 1, it is characterised in that：Described intelligence Air pressure sensing device (3) is high sensitivity baroceptor.
- A kind of 3. low pressure excited Raman light-source system device according to claim 1, it is characterised in that：Described inflation Control valve (4) is the pneumatic supply with positive and negative air-pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811977.5A CN107492778A (en) | 2017-09-11 | 2017-09-11 | Low pressure excited Raman light-source system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811977.5A CN107492778A (en) | 2017-09-11 | 2017-09-11 | Low pressure excited Raman light-source system device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107492778A true CN107492778A (en) | 2017-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710811977.5A Pending CN107492778A (en) | 2017-09-11 | 2017-09-11 | Low pressure excited Raman light-source system device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107492778A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932061A (en) * | 2020-02-20 | 2020-03-27 | 南京泰普森自动化设备有限公司 | Laser device |
| CN114188802A (en) * | 2020-09-14 | 2022-03-15 | 中国科学院大连化学物理研究所 | Pipeline type flow gas stimulated Raman scattering frequency conversion device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030133487A1 (en) * | 2000-06-19 | 2003-07-17 | Vogler Klaus Wolfgang | Precision measurement of wavelengths emitted by a molecular fluorine laser at 157nm |
| US20120314722A1 (en) * | 2011-04-05 | 2012-12-13 | Heller Don F | Raman converting laser systems |
| CN103185712A (en) * | 2011-12-30 | 2013-07-03 | 中国科学院安徽光学精密机械研究所 | Device for generating multi-wavelength stimulated raman laser |
| CN104198461A (en) * | 2014-09-10 | 2014-12-10 | 宁波海恩光电仪器有限责任公司 | Industrial process gas analyzer based on Raman effect |
| CN104713867A (en) * | 2015-01-30 | 2015-06-17 | 中国科学院广州能源研究所 | Pretreatment apparatus for biogas online laser Raman spectrometer, and use method thereof |
-
2017
- 2017-09-11 CN CN201710811977.5A patent/CN107492778A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030133487A1 (en) * | 2000-06-19 | 2003-07-17 | Vogler Klaus Wolfgang | Precision measurement of wavelengths emitted by a molecular fluorine laser at 157nm |
| US20120314722A1 (en) * | 2011-04-05 | 2012-12-13 | Heller Don F | Raman converting laser systems |
| CN103185712A (en) * | 2011-12-30 | 2013-07-03 | 中国科学院安徽光学精密机械研究所 | Device for generating multi-wavelength stimulated raman laser |
| CN104198461A (en) * | 2014-09-10 | 2014-12-10 | 宁波海恩光电仪器有限责任公司 | Industrial process gas analyzer based on Raman effect |
| CN104713867A (en) * | 2015-01-30 | 2015-06-17 | 中国科学院广州能源研究所 | Pretreatment apparatus for biogas online laser Raman spectrometer, and use method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932061A (en) * | 2020-02-20 | 2020-03-27 | 南京泰普森自动化设备有限公司 | Laser device |
| CN114188802A (en) * | 2020-09-14 | 2022-03-15 | 中国科学院大连化学物理研究所 | Pipeline type flow gas stimulated Raman scattering frequency conversion device |
| CN114188802B (en) * | 2020-09-14 | 2023-11-17 | 中国科学院大连化学物理研究所 | Pipeline type flowing gas stimulated Raman scattering frequency conversion device |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230088 Building No. 4, 11, Innovation Industrial Park, Hefei High-tech Zone, Anhui Province Applicant after: Anhui Kechuang Optical Technology Co. Ltd. Address before: 230088 University Science Park, 602 Mount Huangshan Road, Hefei hi tech Zone, Anhui, C509 Applicant before: Anhui Kechuang Optical Technology Co. Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171219 |
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| RJ01 | Rejection of invention patent application after publication |