CN110456381A - A kind of laser radar of all solid state metallic atom and ion Layer Detection - Google Patents
A kind of laser radar of all solid state metallic atom and ion Layer Detection Download PDFInfo
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- CN110456381A CN110456381A CN201910610260.3A CN201910610260A CN110456381A CN 110456381 A CN110456381 A CN 110456381A CN 201910610260 A CN201910610260 A CN 201910610260A CN 110456381 A CN110456381 A CN 110456381A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/95—Lidar systems specially adapted for specific applications for meteorological use
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4814—Constructional features, e.g. arrangements of optical elements of transmitters alone
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/483—Details of pulse systems
- G01S7/484—Transmitters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/483—Details of pulse systems
- G01S7/486—Receivers
- G01S7/4861—Circuits for detection, sampling, integration or read-out
-
- 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
Abstract
The present invention proposes that the laser radar of a kind of all solid state metallic atom and ion Layer Detection, including all-solid state laser emission system, receiving system and data acquire back stepping control system；The all-solid state laser emission system is generated and transmitted by the laser that can detect high-altitude metallic atom and ion by the optical parametric oscillation laser amplifier of high power pulse laser pumping semiconductor injection seeded, and after frequency multiplier；The receiving system receives the echo-signal of the detection metallic atom and ion, and the echo-signal is input to data acquisition back stepping control system；The data acquire back stepping control system, the optical maser wavelength of control all-solid state laser emission system transmitting, are screened in real time to the echo signal data received and inverting, and obtained detection data is stored.The present invention is compared to dye laser used in existing laser radar, and using the technology of solid state laser, strong antijamming capability, performance is stablized, and is suitable for the mal-condition of field inspection.
Description
Technical field
The present invention relates to laser, laser radar field, in particular to a kind of all solid state metallic atom and ion Layer Detection
Laser radar.
Background technique
It is commonly known as middle layer top region apart from ground 80-110km kilometers of height region, which is extraterrestrial matter
The region of (cosmic dust and meteor) injection and ablation, is this since meteor melts metallic atom/ion in the metal layer to be formed
The fabulous tracer of regional dynamics, photochemistry coupling process, thus detect in the region various metal components (sodium, iron,
Calcium, potassium, nickel etc.), the variation of their structure of primary study not only can reveal that extraterrestrial matter and Middle and upper atmosphere interact
In there are key scientific problems such as dynamics, photochemistry, earth atmosphere can also be explored outside ground under high speed miniflow star streaming bombardment
Behavior and micrometeor brought by interplanetary stardust feature.Atom and ion detection to metallic element are high in current
The urgent need of atmosphere research.
The equipment for carrying out metallic atom and ion detection using laser radar both at home and abroad, other metal layers in addition to sodium layer
Detection, such as potassium, iron, nickel, calcium, calcium ion etc., the laser transmitting system overwhelming majority use YAG solid state laser pumped dye
Laser generates transmitting laser, and remainder generates transmitting laser using excimer laser pumped dye laser.At these
In Airborne Lidar examining system, dye laser is all employed.Dye laser system has the service life short, needs to frequently replace dye
Material, power consumption are big, need to often adjust optical path, manual intervention amount is excessive, it is difficult to realize increasingly automated and in extreme climate environment item
The disadvantages of working under part.
Summary of the invention
Present invention aim to address in existing metallic atom and ion laser radar detection due to using dye laser
Device, caused by frequently replace dyestuff, the unstable problem of system capacity；
To achieve the above object, the present invention proposes the laser radar of a kind of all solid state metallic atom and ion Layer Detection, institute
State all solid state metallic atom and ion Layer Detection laser radar include: all-solid state laser emission system, receiving system and
Data acquire back stepping control system；
The all-solid state laser emission system, for the optical parameter by high power pulse laser pumping semiconductor injection seeded
Oscillating laser amplifier is generated and transmitted by the laser that can detect high-altitude metallic atom and ion；
The receiving system, the echo-signal of the laser for receiving the detection metallic atom and ion, by institute
Belong to echo-signal and is input to data acquisition back stepping control system；
The data acquire back stepping control system, right for controlling the optical maser wavelength of all-solid state laser emission system transmitting
The echo signal data received is screened in real time and inverting, and obtained detection data is stored.
As a kind of improvement of described device, the all-solid state laser emission system includes that sequentially connected seed optical fiber swashs
Light device, Pulsed Solid State YAG laser, optical parametric oscillation laser amplifier, semiconductor seed laser, laser frequency multiplier, laser
Beam expanding lens and autocollimation regulating device；
Seed laser is injected into Pulsed Solid State YAG laser by the seed optical fiber laser；
The Pulsed Solid State YAG laser generates the single longitudinal mode high power pulse laser Jing Guo frequency multiplication, is sent to optical parameter
The first input end of oscillating laser amplifier；
The semiconductor seed laser is by the fundamental frequency injection seeded of metallic atom or sheath exploring laser light to optical parameter
Second input terminal of oscillating laser amplifier；
The high power pulse laser of the received single longitudinal mode of first input end of the optical parametric oscillation laser amplifier pumps
Under the collective effect of the received fundamental frequency injection seeded of the second input terminal, the base that can detect high-altitude metallic atom or ion is generated
Frequency laser, output to laser frequency multiplier；
The laser frequency multiplier increases laser energy by adjusting temperature control and angle, is metallic atom by basic frequency laser frequency multiplication
Or the resonant wavelength of ion, and laser is directed into laser beam expanding lens；
The laser beam expanding lens adjust laser beam divergence, by Laser emission to autocollimation regulating device；
The autocollimation regulating device adjusts transmitting laser direction, makes the direction and the telescope receiving direction that emit laser
Match, transmitting laser reflection is aerial to day.
As a kind of improvement of described device, the all-solid state laser emission system includes seed optical fiber laser, pulse
Solid-state YAG laser, the first optical parametric oscillation laser amplifier, the second optical parametric oscillation laser amplifier, the first semiconductor kind
Sub- laser, the second semiconductor seed laser, first laser frequency multiplier, second laser frequency multiplier, first laser beam expanding lens,
Dual-laser beam expanding lens, the first autocollimation regulating device and the second autocollimation regulating device；
Seed laser is injected into Pulsed Solid State YAG laser by the seed optical fiber laser；
The Pulsed Solid State YAG laser generates the single longitudinal mode high power pulse laser Jing Guo frequency multiplication, while being sent to the
One optical parametric oscillation laser amplifier first input end and the second optical parametric oscillation laser amplifier first input end；
The first semiconductor seed laser is by the fundamental frequency injection seeded of metal atomic layer exploring laser light to the first beche-de-mer without spike
Measure the second input terminal of oscillating laser amplifier；
The high power pulse laser of the received single longitudinal mode of first input end of the first optical parametric oscillation laser amplifier
Pumping swashs with the fundamental frequency that can detect metallic atom under the collective effect of the received fundamental frequency injection seeded of the second input terminal, is generated
Light, output to first laser frequency multiplier；
The first laser frequency multiplier increases laser energy by adjusting temperature control and angle, is gold by basic frequency laser frequency multiplication
Belong to the resonant wavelength of atom, and laser is directed into first laser beam expanding lens；
The first laser beam expanding lens improves laser beam divergence by adjusting, by Laser emission to the first autocollimation tune
Regulating device；
The first autocollimation regulating device adjusts transmitting laser direction, connects the direction for emitting laser with telescope
Debit is to matching, and by emitting, laser reflection is aerial to day；
The second semiconductor seed laser is by the fundamental frequency injection seeded of metal ion exploring laser light to the second beche-de-mer without spike
Measure the second input terminal of oscillating laser amplifier；
The high power pulse laser of the received single longitudinal mode of first input end of the second optical parametric oscillation laser amplifier
With under the collective effect of the received fundamental frequency injection seeded of the second input terminal, the fundamental frequency generated for detecting metal ion is sharp for pumping
Light, output to second laser frequency multiplier；
The second laser frequency multiplier increases laser energy by adjusting temperature control and angle, is gold by basic frequency laser frequency multiplication
Belong to the resonant wavelength of ion, and laser is directed into second laser beam expanding lens；
The second laser beam expanding lens improves laser beam divergence by adjusting, by Laser emission to the second autocollimation tune
Regulating device；
The second autocollimation regulating device adjusts transmitting laser direction, connects the direction for emitting laser with telescope
Debit is to matching, and by emitting, laser reflection is aerial to day.As a kind of improvement of described device, the all-solid state laser transmitting
System further includes laser frequency stabilisation device；
The laser frequency stabilisation device inputs laser frequency for acquiring and detecting the laser frequency of transmitting laser in real time
Back stepping control system is acquired to data, makes laser frequency lock in the resonance wave strong point of metallic atom and ion.
As a kind of improvement of described device, the Pulsed Solid State YAG laser includes the component of injection seeded, described
The pulse laser of Pulsed Solid State YAG laser output is the flat top beam that wavelength is 532nm, and more transverse mode energy are uniformly distributed.
As a kind of improvement of described device, each optical parametric oscillation laser amplifier includes a corresponding seed
The component of injection.
As a kind of improvement of described device, the receiving system includes telescope, optical fiber, photodetector and filter
Mating plate；
The telescope, for receiving the echo-signal of metallic atom and ion；
The optical fiber is placed in the focal point of telescope, is used for transmission the echo letter of the laser of detection metallic atom and ion
Number, echo-signal is transmitted to optical filter；
The optical filter, for being transmitted to photodetector after filtering echo-signal；
The photodetector, for the echo optical signal received to be converted to electric signal, by treated, echo is believed
Number it is transmitted to data acquisition back stepping control system.
As a kind of improvement of described device, data acquisition back stepping control system include photonic data acquisition module and
Upper computer control module；
The photonic data acquisition module, for acquiring the echo-signal exported by photodetector；
The upper computer control module, for controlling the open and close of the photo-electronic data acquisition module, according to laser
The launch wavelength of the laser frequency of frequency regulator detection, control semiconductor seed laser is the resonance wave of metallic atom and ion
It is long, it is also used to screen the echo signal data of acquisition in real time and inverting, obtains detection data and stored.
Compared with prior art, the beneficial effects of the present invention are:
1, the laser radar of all solid state metallic atom of the invention and ion Layer Detection uses all solid state Laser emission system
System, for dye laser used in domestic and international existing Airborne Lidar examining system, transmitting highpowerpulse swashs
The technology of gloss solid state laser, the interference performances such as environment resistant temperature, vibration are strong, stable and reliable working performance, are suitble to long-term
Operation and observation is also suitable for the mal-condition of field inspection；
2, the laser radar detection index of all solid state metallic atom of the invention and ion Layer Detection is considerably beyond domestic and international
Similar detecting devices, it is all solid state to have many advantages, such as that low in energy consumption, the service life is long, stability and reliability is high.
3, all solid state metallic atom sheath detecting laser radar of the invention thoroughly solves dyestuff in use process and changes
The unstable problem with system capacity；And the output of this laser radar emits laser energy considerably beyond common laser radar；And
Stabilization of equipment performance is high, and mobile detection may be implemented.
Detailed description of the invention
Fig. 1 is the schematic device of the laser radar of all solid state metallic atom of the present invention and ion Layer Detection；
Fig. 2 is the Laser emission of the iron atom detection of the laser radar of all solid state metallic atom of the present invention and ion Layer Detection
System diagram；
Fig. 3 is that the calcium atom of the laser radar of all solid state metallic atom of the present invention and ion Layer Detection and calcium ion are visited simultaneously
The device figure of the laser radar of survey.
Specific embodiment
The present invention will be described in detail in the following with reference to the drawings and specific embodiments.
The invention discloses the laser radars of a kind of all solid state metallic atom and ion Layer Detection, including Laser emission system
System, receiving system and data acquire back stepping control system.
As shown in Figure 1, the laser transmitting system main devices include Pulsed Solid State YAG laser, seed optical-fiber laser
Device, semiconductor seed laser, optical parametric oscillation laser amplifier and laser frequency multiplier.
In laser transmitting system, seed is provided by seed optical fiber laser, is injected into Pulsed Solid State YAG laser,
The pulse laser for generating the single longitudinal mode Jing Guo frequency multiplication, is put by the optical parametric oscillation laser of laser pumped by pulsed laser semiconductor injection seeded
Big device generates fundamental frequency light by laser frequency multiplier and generates the laser for detecting metallic atom and ion.
The zlasing mode of the Pulsed Solid State YAG laser output is that more transverse mode energy are uniformly distributed, approximate flat top beam.
The laser of the optical parametric oscillation laser amplifier output is the single longitudinal mode arteries and veins of metallic atom and ion resonance wavelength
Rush two double-frequency lasers.
The laser frequency multiplier has temperature control and angle regulating function, is installed on after optical parametric oscillation laser amplifier,
The laser freuqency doubling that optical parametric oscillation amplifier is exported is metallic atom and ion resonance wavelength.Adjust the final of temperature control and angle
Effect is to improve the shg efficiency of laser frequency multiplier, increases the laser energy of output.Better meet experiment demand.
The laser transmitting system further includes laser beam expanding lens, improves laser beam divergence for adjusting, makes itself and telescope
Acceptance angle matches.
Laser transmitting system further includes autocollimation regulating device, for adjusting transmitting laser direction, makes itself and telescope
Receiving direction matches.
Laser transmitting system further includes laser frequency stabilisation device, the laser frequency stabilisation device, for acquiring and detecting sharp in real time
Laser frequency is input to data acquisition back stepping control system, makes laser frequency lock in metallic atom and ion by light frequency
Resonance wave strong point.
The receiving system main devices include large aperture telescope, optical fiber, photodetector, optical filter etc.；In
In telescopic system, optical fiber is placed in the focal point of telescope, for receiving the echo-signal of laser radar.
In telescopic system, optical fiber is placed in the focal point of 1 meter of large aperture telescope, for receiving the echo of metallic atom
Signal, the echo-signal that optical fiber receives pass through optical filter, enter photomultiplier tube.
In the receiving system, reception optical fiber is placed in the focal point of telescope.
The data acquisition back stepping control system main devices include photonic data acquisition module, industrial personal computer, host computer control
Molding block etc..Photonic data acquisition module is installed on inside industrial personal computer in data acquisition back stepping control system, soft by host computer
Part controls the acquisition and closing of data, and is screened in real time to the data of acquisition, inverting.
The upper computer control module, for controlling the open and close of echo data acquisition module, according to laser frequency stabilization
The launch wavelength of the laser frequency of device detection, control semiconductor seed laser is the resonant wavelength of metallic atom and ion,
It is also used to screen the echo signal data of acquisition in real time and inverting, obtains detection data and stored.
Embodiment 1
The present embodiment is the laser radar laser transmitting system detected for iron atom, laser radar Laser emission system
All devices device is solid-state schemes in system, and laser transmitting system main devices include Pulsed Solid State YAG laser, 1064nm
Seed optical fiber laser, 744nm semiconductor seed laser, 744nm optical parametric oscillation laser amplifier, 744nm laser freuqency doubling
Device.
In laser transmitting system, seed is provided by 1064nm seed optical fiber laser, is injected into Pulsed Solid State YAG laser
In device, the 532nm pulse laser of the single longitudinal mode Jing Guo frequency multiplication is generated, pumps the 744nm optical parameter of 744nm semiconductor injection seeded
Oscillating laser amplifier generates fundamental frequency light, and fundamental frequency light generates after 744nm laser frequency multiplier for detecting iron atom
372nm laser.
As shown in Fig. 2, the present embodiment specifically includes: the 1064nm seed optical fiber laser infuses 1064nm seed laser
Enter into Pulsed Solid State YAG laser；
The Pulsed Solid State YAG laser generates the high-power 532nm pulse laser of single longitudinal mode Jing Guo frequency multiplication, is sent to
The first input end of 744nm optical parametric oscillation laser amplifier；
Second input terminal of the 744nm optical parametric oscillation laser amplifier and a 744nm semiconductor seed laser
Series connection；
Metallic atom or ion Layer Detection fundamental frequency seed laser are injected by the 744nm semiconductor seed laser
744nm optical parametric oscillation laser amplifier；
The 744nm optical parametric oscillation laser amplifier is swashed by the highpowerpulse of the single longitudinal mode of first input end input
Under the collective effect of the fundamental frequency seed laser injection of optical pumping and the input of the second input terminal, transmitting can detect high-altitude metallic atom
Or the basic frequency laser of ion, output to laser frequency multiplier；
The laser frequency multiplier increases laser energy by adjusting temperature control and angle, is that metal is former by basic frequency laser frequency multiplication
The resonant wavelength 372nm of son or ion, and laser is directed into laser beam expanding lens；
The laser beam expanding lens improve laser beam divergence by adjusting, by Laser emission to autocollimation regulating device；
The autocollimation regulating device adjusts transmitting laser direction, makes the direction and the telescope recipient that emit laser
To matching, by emitting, laser reflection is aerial to day.
Laser transmitting system further includes laser frequency stabilisation device, the laser frequency stabilisation device, for acquiring and detecting sharp in real time
Laser frequency is input to data acquisition back stepping control system, makes laser frequency lock in metallic atom and ion by light frequency
Resonance wave strong point.
Embodiment 2
Originally it is embodied as the laser radar for all solid state calcium atom and calcium ion while detection, the laser radar can be same
When generate the laser of two beam different wave lengths, separately detect calcium atom and calcium ion, the laser radar include laser transmitting system,
Receiving system and data acquire back stepping control system.
The laser transmitting system main devices include Pulsed Solid State YAG laser, 1064nm seed optical fiber laser,
The first semiconductor seed laser of 846nm, the second semiconductor seed laser of 786nm, the first optical parametric oscillation of 846nm
The second of laser amplifier, the second optical parametric oscillation laser amplifier of 786nm, the first laser frequency multiplier of 846nm and 786nm
Laser frequency multiplier.
The zlasing mode of the Pulsed Solid State YAG laser output is that more transverse mode energy are uniformly distributed, approximate flat top beam.
In laser transmitting system, seed is provided by 1064nm seed optical fiber laser, is injected into Pulsed Solid State YAG laser
In device, the 532nm pulse laser of the single longitudinal mode Jing Guo frequency multiplication is generated, is passing through spectroscope, 532nm laser is divided into two bundles:
The first optical parametric oscillation laser amplifier of the 846nm of a branch of the first semiconductor injection seeded for being used to pump 846nm
Device generates fundamental frequency light；The laser for detecting metallic atom is generated using the first laser frequency multiplier of 846nm；
The first optical parametric oscillation laser amplifier of the 846nm, the laser of output are the single longitudinal mode pulse of metallic atom
Basic frequency laser；
The first laser frequency multiplier of 846nm is installed on after 846nm optical parametric oscillation laser amplifier, by the of 846nm
The basic frequency laser frequency multiplication of one optical parametric oscillation amplifier output is the resonant wavelength 423nm of calcium atom.
The second optical parametric oscillation laser that another beam is used to pump the 786nm of the second semiconductor injection seeded of 786nm is put
Big device generates fundamental frequency light；Using the second laser frequency multiplier of 786nm, the laser for detecting metal ion is generated.
The second optical parametric oscillation laser amplifier of the 786nm, the laser of output are the list of metal ion resonant wavelength
Longitudinal mode pulse basic frequency laser.
The second laser frequency multiplier of the 786nm is mounted on after the second optical parametric oscillation laser amplifier of 786nm,
The basic frequency laser frequency multiplication that the second optical parametric oscillation amplifier of 786nm is exported is calcium ion resonant wavelength 393nm.
As shown in figure 3, all-solid state laser emission system described in the present embodiment specifically include 1064nm seed optical fiber laser,
Second optical parametric oscillation laser of the first optical parametric oscillation laser amplifier of Pulsed Solid State YAG laser, 846nm, 786nm is put
The first laser of big device, the first semiconductor seed laser of 846nm, the second semiconductor seed laser of 786nm, 846nm
Frequency multiplier, the second laser frequency multiplier of 786nm, first laser beam expanding lens, second laser beam expanding lens, the first autocollimation adjust dress
It sets and the second autocollimation regulating device；
Seed laser is injected into Pulsed Solid State YAG laser by the seed optical fiber laser；
The Pulsed Solid State YAG laser generates the single longitudinal mode high power pulse laser Jing Guo frequency multiplication, is sent to simultaneously
The first optical parametric oscillation laser amplifier first input end of 846nm and the input of the second optical parametric oscillation laser amplifier first
End；
The second input terminal and the first semiconductor seed laser of the first optical parametric oscillation laser amplifier of the 846nm
Series connection；
The first semiconductor seed laser of the 846nm is by the injection seeded of metallic atom Layer Detection basic frequency laser to
One optical parametric oscillation laser amplifier；
The first optical parametric oscillation laser amplifier of the 846nm, by first input end input single longitudinal mode it is high-power
The fundamental frequency seed of the second input terminal of laser pumped by pulsed laser input, generates the basic frequency laser for detecting metallic atom, exports to sharp
Optical sccond-harmonic generation device；
The first laser frequency multiplier of the 846nm increases laser energy by adjusting temperature control and angle, by basic frequency laser times
Frequency is the resonant wavelength 423nm of metallic atom, and laser is directed into the first laser beam expanding lens of 846nm；
The first laser beam expanding lens of the 846nm improves laser beam divergence by adjusting, automatically by Laser emission to first
Collimation adjustment device；
The first autocollimation regulating device adjusts transmitting laser direction, connects the direction for emitting laser with telescope
Debit is to matching, and by emitting, laser reflection is aerial to day；
Second input terminal of the second optical parametric oscillation laser amplifier of the 786nm and the second semiconductor kind of 786nm
Sub- laser series connection；
The second semiconductor seed laser of the 786nm arrives the injection seeded of metal ion Layer Detection basic frequency laser
Second input terminal of the second optical parametric oscillation laser amplifier of 786nm；
The second optical parametric oscillation laser amplifier of the 786nm, by first input end input single longitudinal mode it is high-power
The fundamental frequency seed of the second input terminal of laser pumped by pulsed laser input generates the basic frequency laser for detecting metal ion, and output is extremely
The second laser frequency multiplier of 786nm；
The second laser frequency multiplier of the 786nm increases laser energy by adjusting temperature control and angle, by basic frequency laser times
Frequency is the resonant wavelength 393nm of metal ion, and laser is directed into second laser beam expanding lens；
The second laser beam expanding lens improves laser beam divergence by adjusting, by Laser emission to the second autocollimation tune
Regulating device；
The second autocollimation regulating device adjusts transmitting laser direction, connects the direction for emitting laser with telescope
Debit is to matching, and by emitting, laser reflection is aerial to day.
The laser transmitting system further includes laser frequency stabilisation device, the laser frequency stabilisation device, acquires and detects sharp in real time
Laser frequency is input to data acquisition back stepping control system, makes laser frequency lock in metallic atom and ion by light frequency
Resonance wave strong point.
The receiving system main devices include large aperture telescope, 846nm optical fiber, 786nm optical fiber, photodetection
Device, optical filter etc.；In telescopic system, optical fiber is placed in the focal point of telescope, for receiving the echo-signal of laser radar.
In telescopic system, 423nm optical fiber is placed in the focal point of telescope with 393nm optical fiber, using focal plane point
Light technology receives the echo-signal of calcium atom and calcium ion respectively.The echo-signal received pass through respectively 423nm optical filter with
393nm optical filter enters respective photomultiplier tube.
The data acquisition back stepping control system main devices include photonic data acquisition module, industrial personal computer, host computer control
Molding block etc..Photonic data acquisition module is installed on inside industrial personal computer in data acquisition back stepping control system, soft by host computer
Part controls the acquisition and closing of data, and is screened in real time to the data of acquisition, inverting.
The upper computer control module, for controlling the open and close of echo data acquisition module, according to laser frequency stabilization
The laser frequency of device detection, controls the transmitted wave of 846nm semiconductor seed laser and 786nm semiconductor seed laser
It is long, it is also used to screen the echo signal data of acquisition in real time and inverting, obtains detection data and stored.
The laser radar of all solid state metallic atom and ion Layer Detection of the present invention is easy to operate, and stability is good, makes
It is long with the service life, it can be realized the High precision detection of various metals atom and ion, also can be realized removable detection, be airborne
And satellite borne equipment lays the foundation.
The purpose of the present invention is to propose to a kind of all solid state metallic atom of 80-110km and ion detection laser radars, in laser
It is replaced by using optical parametric oscillation laser amplifier in existing metallic atom and ion laser radar detection in emission system
Dye laser, thoroughly solve the problems, such as in use process because dyestuff replacement caused by system capacity it is unstable；And it adopts
With all solid state laser radar technique, Laser emission energy is greater than common laser radar；And all solid state metal of the invention is former
Son and ion detection laser radar apparatus stability are high, realize mobile detection, reduce external environment in laser radar detection
Influence, ensure that laser radar detected with high accuracy, the long-life operation.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng
It is described the invention in detail according to embodiment, those skilled in the art should understand that, to technical side of the invention
Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention
Scope of the claims in.
Claims (8)
1. a kind of laser radar of all solid state metallic atom and ion Layer Detection, which is characterized in that emit including all-solid state laser
System, receiving system and data acquire back stepping control system；
The all-solid state laser emission system, for the optical parametric oscillation by high power pulse laser pumping semiconductor injection seeded
Laser amplifier is generated and transmitted by the laser that can detect high-altitude metallic atom and ion；
The receiving system, the echo-signal of the laser for receiving the detection metallic atom and ion described will return
Wave signal is input to data acquisition back stepping control system；
The data acquire back stepping control system, for controlling the optical maser wavelength of all-solid state laser emission system transmitting, to reception
To echo signal data screened in real time and inverting, and obtained detection data is stored.
2. the laser radar of all solid state metallic atom and ion Layer Detection according to claim 1, which is characterized in that described
All-solid state laser emission system include sequentially connected seed optical fiber laser, Pulsed Solid State YAG laser, optical parametric oscillation swash
Image intensifer, semiconductor seed laser, laser frequency multiplier, laser beam expanding lens and autocollimation regulating device；
Seed laser is injected into Pulsed Solid State YAG laser by the seed optical fiber laser；
The Pulsed Solid State YAG laser generates the single longitudinal mode high power pulse laser Jing Guo frequency multiplication, is sent to optical parametric oscillation
The first input end of laser amplifier；
The fundamental frequency seed laser of metallic atom or ion Layer Detection is injected into optical parametric oscillation by the semiconductor seed laser
Second input terminal of laser amplifier；
High power pulse laser pumping and the of the optical parametric oscillation laser amplifier in the received single longitudinal mode of first input end
Under the collective effect of the received fundamental frequency injection seeded of two input terminals, generation can detect high-altitude metallic atom or the fundamental frequency of ion swashs
Light, output to laser frequency multiplier；
The laser frequency multiplier increases laser energy by adjusting temperature control and angle, by basic frequency laser frequency multiplication be metallic atom or from
The resonant wavelength of son, and laser is directed into laser beam expanding lens；
The laser beam expanding lens adjust laser beam divergence, by Laser emission to autocollimation regulating device；
The autocollimation regulating device adjusts transmitting laser direction, makes the direction and the telescope receiving direction phase that emit laser
Match, transmitting laser reflection is aerial to day.
3. the laser radar of all solid state metallic atom and ion Layer Detection according to claim 1, which is characterized in that described
All-solid state laser emission system includes seed optical fiber laser, Pulsed Solid State YAG laser, the first optical parametric oscillation laser amplifier
Device, the second optical parametric oscillation laser amplifier, the first semiconductor seed laser, the second semiconductor seed laser, first swash
Optical sccond-harmonic generation device, second laser frequency multiplier, first laser beam expanding lens, second laser beam expanding lens, the first autocollimation regulating device and
Second autocollimation regulating device；
Seed laser is injected into Pulsed Solid State YAG laser by the seed optical fiber laser；
The Pulsed Solid State YAG laser generates the single longitudinal mode high power pulse laser Jing Guo frequency multiplication, while being sent to the first light
Parametric oscillation laser amplifier first input end and the second optical parametric oscillation laser amplifier first input end；
The first semiconductor seed laser shakes the fundamental frequency injection seeded of metal atomic layer exploring laser light to the first optical parameter
Swing the second input terminal of laser amplifier；
The high power pulse laser of the received single longitudinal mode of first input end of the first optical parametric oscillation laser amplifier pumps
Under the collective effect of the received fundamental frequency injection seeded of the second input terminal, the basic frequency laser that can detect metallic atom is generated, it is defeated
Out to first laser frequency multiplier；
The first laser frequency multiplier increases laser energy by adjusting temperature control and angle, is that metal is former by basic frequency laser frequency multiplication
The resonant wavelength of son, and laser is directed into first laser beam expanding lens；
The first laser beam expanding lens improves laser beam divergence by adjusting, Laser emission to the first autocollimation is adjusted and is filled
It sets；
The first autocollimation regulating device adjusts transmitting laser direction, makes the direction and the telescope recipient that emit laser
To matching, by emitting, laser reflection is aerial to day；
The second semiconductor seed laser swashs the injection seeded of metal ion exploring laser light to the second optical parametric oscillation
Second input terminal of image intensifer；
The high power pulse laser of the received single longitudinal mode of first input end of the second optical parametric oscillation laser amplifier pumps
Under the collective effect of the received fundamental frequency injection seeded of the second input terminal, the basic frequency laser for detecting metal ion is generated, it is defeated
Out to second laser frequency multiplier；
The second laser frequency multiplier increases laser energy by adjusting temperature control and angle, by basic frequency laser frequency multiplication be metal from
The resonant wavelength of son, and laser is directed into second laser beam expanding lens；
The second laser beam expanding lens improves laser beam divergence by adjusting, Laser emission to the second autocollimation is adjusted and is filled
It sets；
The second autocollimation regulating device adjusts transmitting laser direction, makes the direction and the telescope recipient that emit laser
To matching, by emitting, laser reflection is aerial to day.
4. the laser radar of all solid state metallic atom and ion Layer Detection according to claim 2 or 3, which is characterized in that
The all-solid state laser emission system further includes laser frequency stabilisation device；
Laser frequency is input to number for acquiring and detecting the laser frequency of transmitting laser in real time by the laser frequency stabilisation device
According to acquisition back stepping control system, make laser frequency lock in the resonance wave strong point of metallic atom and ion.
5. the laser radar of all solid state metallic atom and ion Layer Detection according to claim 2 or 3, which is characterized in that
The Pulsed Solid State YAG laser includes the component of injection seeded, the pulse laser of the Pulsed Solid State YAG laser output
The flat top beam for being 532nm for wavelength, more transverse mode energy are uniformly distributed.
6. the laser radar of all solid state metallic atom and ion Layer Detection according to claim 2 or 3, which is characterized in that
Each optical parametric oscillation laser amplifier includes the component of a corresponding injection seeded.
7. the laser radar of all solid state metallic atom and ion Layer Detection according to claim 2 or 3, which is characterized in that
The receiving system includes telescope, optical fiber, optical filter and photodetector；
The telescope receives the echo-signal of metallic atom and ion；
The optical fiber, is placed in the focal point of telescope, and echo-signal is transmitted to optical filter；
The optical filter is transmitted to photodetector after filtering echo-signal；
The photodetector, for the echo optical signal received to be converted to electric signal, by treated, echo-signal is passed
Transport to data acquisition back stepping control system.
8. the laser radar of all solid state metallic atom and ion Layer Detection according to claim 2 or 3, which is characterized in that
The data acquisition back stepping control system includes photonic data acquisition module and upper computer control module；
The photonic data acquisition module, for acquiring the echo-signal exported by photodetector；
The upper computer control module, for controlling the open and close of the photonic data acquisition module, according to laser frequency stabilization
The launch wavelength of the laser frequency of device detection, control semiconductor seed laser is the resonant wavelength of metallic atom and ion,
It is also used to screen the echo signal data of acquisition in real time and inverting, obtains detection data and stored.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114779219A (en) * | 2022-04-20 | 2022-07-22 | 中国科学院国家空间科学中心 | System and method for monitoring detection state of laser radar of high-rise atmospheric metal layer |
| CN115508864A (en) * | 2022-09-06 | 2022-12-23 | 中国科学院国家空间科学中心 | E-F area wind-temperature-density metal ion detection laser radar and detection method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009140480A1 (en) * | 2008-05-15 | 2009-11-19 | Lookheed Martin Corporation | Improved mid-ir laser for generation of ultrasound using a co2 laser and harmonic generation |
| CN104199046A (en) * | 2014-09-28 | 2014-12-10 | 中国科学院空间科学与应用研究中心 | Double-beam full-wave band detection laser radar |
| CN104466640A (en) * | 2014-12-25 | 2015-03-25 | 中国科学技术大学 | All-fiber frequency transformation seed light system applied to sodium laser radar |
| CN104795717A (en) * | 2015-04-21 | 2015-07-22 | 中国科学院上海光学精密机械研究所 | Blue-green band pulse all-solid-state laser |
| CN204992236U (en) * | 2015-09-23 | 2016-01-20 | 深圳市欧凌镭射科技有限公司 | Passive mode locking linear polarization psec pulsed optical fibre laser ware |
| US20170018904A1 (en) * | 2014-10-29 | 2017-01-19 | Shenzhen University | Optical parametric oscillation laser based on i-type quasi-phase matching |
| CN108183387A (en) * | 2018-02-09 | 2018-06-19 | 上海交通大学 | A kind of optical parametric oscillator system for laser |
| US20180269646A1 (en) * | 2017-03-16 | 2018-09-20 | Luminar Technologies, Inc. | Solid-state laser for lidar system |
-
2019
- 2019-07-08 CN CN201910610260.3A patent/CN110456381B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009140480A1 (en) * | 2008-05-15 | 2009-11-19 | Lookheed Martin Corporation | Improved mid-ir laser for generation of ultrasound using a co2 laser and harmonic generation |
| CN104199046A (en) * | 2014-09-28 | 2014-12-10 | 中国科学院空间科学与应用研究中心 | Double-beam full-wave band detection laser radar |
| US20170018904A1 (en) * | 2014-10-29 | 2017-01-19 | Shenzhen University | Optical parametric oscillation laser based on i-type quasi-phase matching |
| CN104466640A (en) * | 2014-12-25 | 2015-03-25 | 中国科学技术大学 | All-fiber frequency transformation seed light system applied to sodium laser radar |
| CN104795717A (en) * | 2015-04-21 | 2015-07-22 | 中国科学院上海光学精密机械研究所 | Blue-green band pulse all-solid-state laser |
| CN204992236U (en) * | 2015-09-23 | 2016-01-20 | 深圳市欧凌镭射科技有限公司 | Passive mode locking linear polarization psec pulsed optical fibre laser ware |
| US20180269646A1 (en) * | 2017-03-16 | 2018-09-20 | Luminar Technologies, Inc. | Solid-state laser for lidar system |
| CN108183387A (en) * | 2018-02-09 | 2018-06-19 | 上海交通大学 | A kind of optical parametric oscillator system for laser |
Non-Patent Citations (3)
| Title |
|---|
| XIA YUAN 等: ""Development of a solid-state sodium Doppler lidar using an all-fiber-coupled injection seeding unit for simultaneous temperature and wind measurements in the mesopause region"", 《OPTICS EXPRESS》 * |
| 洪光烈 等: ""水汽差分吸收激光雷达发射机935nm高功率光参量振荡器"", 《红外与激光工程》 * |
| 石顺祥等: "《光的电磁理论 光波的传播与控制》", 31 October 2006 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114779219A (en) * | 2022-04-20 | 2022-07-22 | 中国科学院国家空间科学中心 | System and method for monitoring detection state of laser radar of high-rise atmospheric metal layer |
| CN115508864A (en) * | 2022-09-06 | 2022-12-23 | 中国科学院国家空间科学中心 | E-F area wind-temperature-density metal ion detection laser radar and detection method thereof |
| WO2024051680A1 (en) * | 2022-09-06 | 2024-03-14 | 中国科学院国家空间科学中心 | Metal ion-based laser radar for detecting wind field and temperature in e-f regions and density, and detection method thereof |
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