CN104361804B - Experimental system of pumping OPO (optical parametric oscillator) of YAG pulse laser - Google Patents
Experimental system of pumping OPO (optical parametric oscillator) of YAG pulse laser Download PDFInfo
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Abstract
The invention discloses an experimental system of a pumping OPO (optical parametric oscillator) of a YAG pulse laser. The experimental system comprises a light condensation cavity component, a Q-modulation component, a mirror component, an OPO conversion component, a second output mirror, a double-frequency mirror component and a target plate component on the same optical axis. The light condensation cavity component, the mirror component and the second output mirror form a resonance cavity of the YAG laser and form laser oscillation in the same after electrified, the Q-modulation component is used for enabling the YAG laser to output short pulse laser light intensive in energy, a resonance cavity of the OPO is formed in the OPO conversion component used for generating laser oscillation of appointed optical parameters in the resonance cavity of the OPO and outputting laser light, and the double-frequency mirror component is used for converting the laser light into green or red light distinguishable for human eyes; the target plate component is used for displaying the green or red light. The experimental system is modularized and is simple to operate and convenient for students to learn the structural composition and the operating principle of the OPO.
Description
Technical field
The present invention relates to teaching experiment system field, in particular to yag pulse laser pump optical parametric oscillator
Experimental system.
Background technology
Optical parametric oscillator (opo) technology can produce the tunable relevant light output of wide spectrum, and can swash existing
Light wavelength conversion is beyond one's reach wave band to conventional laser, and it is in military confrontation, atmosphere environment supervision, laser radar and light
The extensive application of the numerous areas such as spectroscopy study, be photoelectricity specialty student it should be understood that and grasp an important frequency
Rate tunable technology.
In order to allow student preferably learn the relevant knowledge of optical parametric oscillator, need to make student straight by laboratory facilities
The study seen and the structure composition and the operation principle that understand optical parametric oscillator.But, currently without for optical parametric oscillator
The education experiment of device and custom-designed experimental system, or existing experimental apparatus are the good commercial products of overall package, no
The internal structure composition of normal direction student's display opticses parametric oscillator, or being the principle prototype that faculty oneself builds, behaviour
Make complicated, adjust extremely time-consuming, student is difficult to interior in laboratory complete experimental implementation.Lack simple and clear, simple to operate
Experiment porch, education experiment is difficult to carry out.
Content of the invention
In order to solve the problems, such as to lack optical parametric oscillator teaching experiment platform at present, the present invention provides one kind to aim at light
The experimental system learned parametric oscillator education experiment and design, this experimental system adopts modularized design, simple to operate, and structure is clear
Clear, it is easy to structure composition and operation principle that student understands and grasp optical parametric oscillator.
For achieving the above object, the experiment system of the yag pulse laser pump optical parametric oscillator designed by the present invention
System, it is characterized in that, including the laser pump cavity assembly being positioned in same optical axis, adjusts q assembly, the mirror assembly that is all-trans, opo to turn
Change assembly, the second outgoing mirror, two frequency multiplication mirror assemblies and target plate assembly, described laser pump cavity assembly, be all-trans mirror assembly and the second output
Mirror constitutes the resonator cavity of yag laser instrument, sets up laser generation after energising in the resonator cavity of yag laser instrument, and described tune q assembly is used
In making yag laser instrument export the short-pulse laser that energy is concentrated, described opo transition components include ktp crystal and the first outgoing mirror,
Described ktp crystal and the resonator cavity of the first outgoing mirror composition optical parametric oscillator, for the resonance in optical parametric oscillator
Set up, in chamber, the laser generation specifying optical parameter, and export laser, described two frequency multiplication mirror assemblies are used for converting laser light into people
The distinguishable green glow of eye or HONGGUANG, described target plate assembly is used for showing green glow or HONGGUANG.
Further, described laser pump cavity assembly includes cavity, the xenon lamp above described cavity and the position of both ends open
Laser bar on optical axis below the described xenon lamp, described xenon lamp is connected with power supply, and adjusts output by changing supply voltage value
Power.In laser pump cavity assembly, encapsulation xenon lamp and laser bar are as yag laser pump source and operation material.
Further, described tune q assembly includes adjusting q bearing, is provided with tune q crystal, described tune above described tune q bearing
Q crystal is rotated by the rotary shaft being arranged on side.Adjust q crystal can by rotary shaft adjust and laser output optical axis angle,
Optical axis can also be completely offset from, realize adjusting the mutual conversion of q and uncomfortable q mode of operation.
Further, described opo transition components include both ends open setting opo transition components support, ktp crystal,
First outgoing mirror and rotating mechanism, described rotating mechanism is located at the top of opo transition components support, described ktp crystal and first
Outgoing mirror is integrated, and described ktp crystal and the first outgoing mirror are connected with rotating mechanism, positioned at described opo transition components
At the both ends open of support.Ktp crystal and the solidification of the first outgoing mirror are integral, are easy to system and integrally debug.Ktp crystal and first
Outgoing mirror can manually be adjusted into and out optical axis, completes the mutual conversion work of two kinds of wavelength laser output modes.
Further, described two frequency multiplication mirror assemblies include two frequency multiplication mirror bearings and frequency-doubling crystal, described frequency-doubling crystal with
Two frequency multiplication mirror bearing grafting cooperations, described two frequency multiplication mirror bearing intermediate formation perforation, described frequency-doubling crystal props up positioned at two frequency multiplication mirrors
At the perforation of seat.Two frequency multiplication mirror assemblies are designed to detachable pattern, frequency-doubling crystal can easily insert two frequency multiplication mirror bearings or from
Take out in bearing, realize the normal output of laser and frequency multiplication exports.
Further, described laser pump cavity assembly, adjust q assembly, the mirror assembly that is all-trans, opo transition components, the second outgoing mirror,
Two frequency multiplication mirror assemblies and target plate assembly are fixed on the same plane of base, and described base is provided with for showing magnitude of voltage
Display, the control panel for Switching Power Supply and adjusting voltage and power supply.
Further, described first outgoing mirror is 1570nm outgoing mirror；Described second outgoing mirror is 1064nm outgoing mirror.
The principle of the present invention is: constitutes yag pulse laser by the mirror assembly that is all-trans, laser pump cavity assembly and the second outgoing mirror
Device output wavelength is the laser of 1064nm, moves into and is changed into after adjusting q assembly adjusting the yag pulse laser of q, then by opo transition components
Constitute by the optical parametric oscillator of yag pulse laser pumping after moving into optical axis, output wavelength is the laser of 1570nm, insertion
After two frequency multiplication mirror assemblies can respectively will yag pulse laser and optical parametric oscillator output 1064nm and 1570nm invisible
Light is respectively converted into green glow and the HONGGUANG of 532nm and 785nm, shows on target plate assembly.
It is an advantage of the current invention that: this experimental system adopts modularity, the visual design, can complete measurement yag pulse and swash
The threshold voltage of light device and operating characteristic, measurement adjust the laser output characteristic of yag pulse laser under q state, measurement to adjust q state
Lower yag pulse laser frequency multiplication operating characteristic, the threshold value of measurement optical parametric oscillator, impulse waveform and wavelength, yag pulse swash
Multiple tests such as the related contrast experiment of light device, relevant comparative's experiment of opo, help student intuitively to learn and understand Optical Parametric
The structure composition of amount agitator and operation principle.Each opticses are positioned in same optical axis through precision optical machinery, adjust q assembly, opo
Transition components and two frequency multiplication mirror assemblies have higher repetitive positioning accuracy, can be with the mode of operation of fast switching system and light source
Classification is it is not necessary to regulating system light path repeatedly, simple to operate.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the index path of the present invention；
Fig. 3 is the structural representation adjusting q assembly in Fig. 1；
Fig. 4 is the structural representation of opo transition components in Fig. 1；
Fig. 5 is the structural representation of two frequency multiplication mirror assemblies in Fig. 1.
Wherein: laser pump cavity assembly 1, cavity 1.1, xenon lamp 1.2, laser bar 1.3, adjust q assembly 2, adjust q bearing 2.1, rotary shaft
2.2, adjust q crystal 2.3, be all-trans mirror assembly 3, opo transition components 4, opo transition components support 4.1, ktp crystal 4.2, and first is defeated
Appearance 4.3, rotating mechanism 4.4, the second outgoing mirror 5, two frequency multiplication mirror assemblies 6, two frequency multiplication mirror bearings 6.1, frequency-doubling crystal 6.2, bottom
Seat 7, display 8, control panel 9, power supply 10, target plate assembly 11.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in figure 1, the experimental system of yag pulse laser pump optical parametric oscillator of the present invention includes being positioned together
Laser pump cavity assembly 1 in one optical axis, tune q assembly 2, the mirror assembly 3 that is all-trans, opo transition components 4, the second outgoing mirror 5, two frequency multiplication mirrors
Assembly 6 and target plate assembly 11, laser pump cavity assembly 1, the resonator cavity of be all-trans mirror assembly 3 and the second outgoing mirror 5 composition yag laser instrument,
Set up laser generation after energising in the resonator cavity of yag laser instrument, adjust q assembly 2 to be used for making yag laser instrument export what energy was concentrated
Short-pulse laser, opo transition components 4 include ktp crystal 4.2 and the first outgoing mirror 4.3, ktp crystal 4.2 and the first outgoing mirror
The resonator cavity of 4.3 composition optical parametric oscillators, specifies optical parameter for setting up in the resonator cavity of optical parametric oscillator
Laser generation, and export laser, two frequency multiplication mirror assemblies 6 are used for converting laser light into the distinguishable green glow of human eye or HONGGUANG,
Target plate assembly 11 is used for showing green glow or HONGGUANG.
Wherein, laser pump cavity assembly 1 includes the cavity 1.1 of both ends open, is located at the xenon lamp 1.2 of cavity 1.1 top and is located at
Laser bar 1.3 on xenon lamp 1.2 lower section optical axis.It is packaged with xenon lamp 1.2 and laser bar 1.3 as yag laser in laser pump cavity assembly 1
Device pumping source and operation material, xenon lamp 1.2 is connected with power supply 10, and adjusts output by changing supply voltage value.
As shown in figure 3, adjusting q assembly 2 to include adjusting q bearing 2.1, adjusting and above q bearing 2.1, being provided with tune q crystal 2.3, adjust q brilliant
Body 2.3 is rotated by the rotary shaft 2.2 being arranged on side.Adjust q crystal 2.3 can adjust and laser output optical axis by rotary shaft 2
Angle it is also possible to completely offset from optical axis, realize adjusting the mutual conversion of q and uncomfortable q mode of operation.
As shown in figure 4, opo transition components 4 include the opo transition components support 4.1 of both ends open setting, ktp crystal
4.2nd, the first outgoing mirror 4.3 and rotating mechanism 4.4, rotating mechanism 4.4 is located at the top of opo transition components support 4.1, and ktp is brilliant
Body 4.2 and the first outgoing mirror 4.3 are integrated, and ktp crystal 4.2 and the first outgoing mirror 4.3 are connected with rotating mechanism 4.4,
At the both ends open of opo transition components support 4.1.First outgoing mirror 4.3 is 1570nm outgoing mirror.Ktp crystal 4.2 and
One outgoing mirror 4.3 is fixed together, in ktp crystal 4.2 on the end face of laser bar 1.3 plated film, this film layer is to 1064nm light
Anti-reflection, 1570nm light is all-trans.Rotating mechanism 4.4 can be selected for the precision bearing system with bearing and the group of elastic steel ball position-limit mechanism
Close, 20 can be reached " within repetitive positioning accuracy, meet system high accuracy conversion requirements.Ktp crystal 4.2 and the first output
Mirror 4.3 can manually be adjusted into and out optical axis, completes the mutual conversion work of two kinds of laser.
As shown in figure 5, two frequency multiplication mirror assemblies 6 include two frequency multiplication mirror bearings 6.1 and frequency-doubling crystal 6.2, frequency-doubling crystal 6.2 with
Two frequency multiplication mirror bearing 6.1 grafting coordinates, and two frequency multiplication mirror bearing 6.1 intermediate formation is bored a hole, and frequency-doubling crystal 6.2 props up positioned at two frequency multiplication mirrors
At the perforation of seat 6.1.Two frequency multiplication mirror assemblies 6 are designed to detachable pattern, and frequency-doubling crystal 6.2 can easily insert two frequency multiplication mirrors and prop up
Seat 6.1 or taking-up from two frequency multiplication mirror bearings 6.1, realize the normal output of laser and frequency multiplication exports.
Laser pump cavity assembly 1, tune q assembly 2, the mirror assembly 3 that is all-trans, opo transition components 4, the second outgoing mirror 5, two frequency multiplication microscope groups
Part 6 and target plate assembly 11 are fixed on the same plane of base 7, base 7 is provided with for show magnitude of voltage display 8,
The control panel 9 for Switching Power Supply and adjusting voltage and power supply 10, power supply 10 is connected with xenon lamp 1.2.
Fig. 2 show experimental system index path, and the first outgoing mirror 4.3 is all-trans to 1064nm light, anti-to 1570nm light half, the
Two outgoing mirrors 5 are anti-to 1064nm light half, high to 1570nm light saturating, after xenon lamp 1.2 lights, through the cavity 1.1 of laser pump cavity assembly 1
Focus on laser bar 1.3, make operation material realize population inversion, the light being sent is in mirror assembly 3 and the second output of being all-trans
1064nm laser is exported after vibrating between mirror 5.Opo transition components 4 can be moved with vertical optical axis, after transition components move into optical axis,
1064nm optical pumping ktp crystal 4.2 produces 1570nm light, exports after vibrating between ktp crystal 4.2 and the first outgoing mirror 4.3
1570nm laser.The 1064nm laser of system output or 1570nm laser are converted to human eye after two frequency multiplication mirror assemblies 6 and can divide
The green glow distinguished and HONGGUANG are shown on target plate assembly 11.
Carry out concretely comprising the following steps of optical parametric oscillator correlation test using the present invention:
A. the threshold voltage of measurement yag pulse laser and operating characteristic
Pass through in this experiment to change supply voltage value, measure it and export energy, and by calculating yag pulse laser
The electro-optical efficiency of device, draws the output energy of yag pulse laser and the relation curve of running voltage.Obtaining threshold value electricity
A suitable voltage, Laser Measurement device output pulse waveform and spectrum is fixed after pressure.Experimental procedure is as follows:
1. q assembly 2 will be adjusted, opo transition components 4 remove optical axis, connect a laser energy below in the second outgoing mirror 5
Meter.Turn on the power, pre-heating system.
2. supply voltage is adjusted to 600v, length is pressed trigger switch, loosed one's grip after the sound hearing " serge ", observes energy meter and read
Number.
3. increase primary power source voltage every 10v, by same operation triggering, occurring first in energy meter is not 0
Reading, from now on record 10 experimental datas in table 1.
The static uncomfortable q energy measured value of table 1 yag laser
| Number of times | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Averagely |
| Voltage | 660 | 670 | 680 | 690 | 700 | 710 | 720 | 730 | 740 | 750 | |
| Energy | 2.63 | 12.7 | 37.6 | 94.5 | 143.5 | 176.3 | 184.7 | 199.6 | 202.5 | 208.7 |
4. utilize correction formula eActual=1.3eActual measurementCalculate corresponding laser instrument reality output energy under each magnitude of voltage,
And draw out the relation curve between yag pulse laser output energy and running voltage using the data obtained.
5. utilize formula meterCalculate the energy storage of electric capacity under each magnitude of voltage, in conjunction with the reality obtaining in step 3
Output energy, the electric light dress calculating yag pulse laser under each magnitude of voltage changes efficiency and seeks its meansigma methods, as experiment knot
Fruit is recorded.
6. magnitude of voltage is fixed on 750v, energy meter is changed into pin and manages and oscillograph, the impulse waveform of Laser Measurement device,
Preserve image and analyze.
7. keep voltage constant, pin pipe and oscillograph are changed into band meter, obtains now laser instrument
Output spectrum, preserve image and simultaneously analyze.
By this experiment, the threshold operative voltage 660v of yag pulse laser can be obtained；The energy electricity drawn
Line of buckling can also intuitively represent the situation of change with voltage for the output energy；The electro-optical efficiency tried to achieve is even more laser
One important performance indexes of device.The impulse waveform recording and spectrum are also the important of analysis yag pulse laser operating characteristic
Foundation.
B. the laser output characteristic of yag pulse laser under q state is adjusted in measurement
The effect adjusting q is by the artificial output threshold value controlling laser instrument, makes laser instrument output stage sharp, can quantity set
In giant-pulse, adjust q before and after pulse width with output energy all there occurs change.We will be by changing voltage in this experiment
Value, the output energy of yag pulse laser under q state is adjusted in measurement, calculates and adjusts the electric light of yag pulse laser under q state to turn
Change efficiency, and measure the oscillogram adjusting laser pulse before and after q, the change of analyzed pulse width.Experimental procedure is as follows:
1. q assembly 2 will be adjusted to move into optical axis, opo transition components 4 remove optical axis, and connect one below in the second outgoing mirror 5 and swash
Luminous energy.Turn on the power, pre-heating system.
2. supply voltage is adjusted to 660v, length is pressed trigger switch, loosed one's grip after the sound hearing " serge ", observes energy meter and read
Number, and record.Increase primary power source voltage every 10v, 10 groups of data records of measurement are in table 2.
Table 2 yag dynamic Laser adjusts q energy measured value
| Number of times | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Averagely |
| Voltage | 660 | 670 | 680 | 690 | 700 | 710 | 720 | 730 | 740 | 750 | |
| Energy | 1.03 | 7.24 | 21.7 | 65.6 | 106.8 | 134.7 | 153.1 | 164.2 | 173.4 | 185.7 |
3. utilize correction formula eActual=1.3eActual measurementAnd formulaCalculate corresponding under each magnitude of voltage respectively
Under laser instrument reality output energy and each magnitude of voltage, the energy storage of electric capacity, then calculates yag pulse laser under each magnitude of voltage
Dynamic electric light dress changes efficiency and seeks its meansigma methods, records as experimental result.
4. supply voltage is fixed on 750v, q assembly 2 will be adjusted to remove optical axis, energy meter is changed to pin pipe and oscillograph,
Measurement timing chart now, preserves image and analyzes the pulsewidth characteristic of the uncomfortable q of yag dynamic Laser.
5. supply voltage is fixed on 750v, q assembly 2 will be adjusted to move into optical axis, energy meter is changed to pin pipe and oscillograph,
Measurement timing chart now, preserves image and analyzes the pulsewidth characteristic that yag dynamic Laser adjusts q.
After this experiment can verify tune q, electro-optical efficiency substantially reduces, and pulse width is contracted to nanosecond order, in addition
Also demonstrate the feature adjusting q to export energy stabilization.
C. yag pulse laser frequency multiplication operating characteristic under q state is adjusted in measurement
Yag pulse laser output laser be 1064nm invisible laser, the system adopt frequency-doubling crystal 6.2 by its
Be converted to the green glow of wavelength 532nm.The frequency-doubling conversion efficiency that yag pulse laser under q state is adjusted in measurement, frequency multiplication are passed through in this experiment
Impulse waveform afterwards changes and the wavelength change after frequency multiplication, and analysis frequency-doubled effect is the impact of output to laser instrument.Experimental procedure
As follows:
1. q assembly 2 and two frequency multiplication mirror assemblies 6 will be adjusted to move into optical axis, opo transition components 4 remove optical axis, in frequency-doubling crystal
6.2 connect a laser energy meter below.Turn on the power, pre-heating system.
2. supply voltage is adjusted to 660v, length is pressed trigger switch, loosed one's grip after the sound hearing " serge ", observes energy meter and read
Number, and record.Increase primary power source voltage every 10v, 10 groups of data records of measurement are in table 3.
Table 3 yag dynamic Laser adjusts q frequency multiplication energy measured value
| Number of times | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Averagely |
| Voltage | 660 | 670 | 680 | 690 | 700 | 710 | 720 | 730 | 740 | 750 | |
| Energy | 1.02 | 7.04 | 20.9 | 65.4 | 105.3 | 133.5 | 149.1 | 158.2 | 170.5 | 183.8 |
3. utilize correction formula eActual=1.3eActual measurementAnd formulaCalculate corresponding under each magnitude of voltage respectively
The energy storage of electric capacity under laser instrument reality output energy and each magnitude of voltage, by formula e1064=ecηElectrical-opticalTransition draws corresponding electricity
The output energy of pressure 1064nm laser, then calculates the dynamic frequency-doubling conversion efficiency of yag pulse laser under each magnitude of voltage
And seek its meansigma methods, record as experimental result.
4. supply voltage is fixed on 750v, energy meter is changed to pin pipe and oscillograph, measurement impulse waveform now
Figure, after preserving image and analyzing frequency multiplication, yag dynamic Laser adjusts the pulsewidth characteristic of q.
5. keep supply voltage constant, pin pipe and oscillograph are changed into band meter, respectively yag pulse before and after measurement frequency multiplication
The output wavelength of q dynamically adjusted by laser instrument, preserves image and analyzes the wavelength shifting efficiency of frequency multiplication.
Experiment proves that frequency-doubling crystal 6.2 is at a relatively high for the frequency-doubling conversion efficiency of 1064nm laser, and for impulse waveform
Measurement show that frequency-doubled effect has a certain impact for the pulse width of laser, after frequency multiplication, the pulse width of laser will become
Narrow, and the measurement surface frequency-doubling crystal for output wavelength achieves accurately halving of output wavelength.Can on target plate assembly 11
To see obvious green glow, reach the visualization purpose of output.
D. the threshold value of measurement optical parametric oscillator, impulse waveform and wavelength
The main output characteristic of optical parametric oscillator opo is existing optical maser wavelength to be transformed into conventional laser
It is unable to reach wave band, in the system, the Main Function of ktp crystal 4.2 is the laser that the laser of 1064nm is converted to 1570nm.
This experiment passes through to measure the conversion efficiency of optical parametric oscillator, the wavelength before and after conversion and impulse waveform change, analysis opo's
Operating characteristic.Experimental procedure is as follows:
1. q assembly 2 and opo transition components 4 will be adjusted all to move into optical axis, connect a laser energy below in the second outgoing mirror 5
Gauge.Turn on the power, pre-heating system.
2. supply voltage is adjusted to 660v, length is pressed trigger switch, loosed one's grip after the sound hearing " serge ", observes energy meter and read
Number.
3. increase primary power source voltage every 10v, by same operation triggering, occurring first in energy meter is not 0
Reading, write down voltage now.Keep supply voltage 750v constant, repetitive operation, record 10 groups of data, and charge in table 4.
Table 4 opo dynamic Laser adjusts q energy measured value 1,064 1570 e=750v
| Number of times | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Averagely |
| Energy mj | 18.4 | 19.2 | 17.6 | 18.1 | 16.4 | `17.7 | 18.5 | 19.4 | 18.7 | 18.9 |
4. utilize correction formula eActual=1.3eActual measurementAnd formulaCalculate corresponding under each magnitude of voltage respectively
The energy storage of electric capacity under opo transition components 4 reality output energy and fixed voltage value, by formula e1064=ecηElectrical-opticalTransition draws
The output energy of 1064nm laser under corresponding voltage, then calculates the dynamic opo conversion efficiency of each opo transition components 4 and asks
Its meansigma methods, records as experimental result.
5. keep supply voltage constant, energy meter is changed to pin pipe and oscillograph, measurement timing chart now, protects
Deposit image and analyze the pulsewidth characteristic that opo dynamic Laser adjusts q.
6. continue to keep voltage constant, pin pipe and oscillograph changed into band meter, measurement now opo transition components 4 defeated
Go out spectrum, preserve image and analyze the spectral characteristic that opo dynamic Laser adjusts q.
Experiment proves that ktp crystal 4.2 is excellent as opo crystal property, has higher opo efficiency, meets phase matched
Condition.Gained spectrogram also can intuitively show that opo achieves 1064nm laser and the rapid translating of 1570nm laser.
The related contrast experiment of e.yag pulse laser
Knowable to the general design idea of system, having three kinds under five kinds of mode of operations of system is and yag pulse laser
Relevant, it is common yag pulse laser, the yag pulse laser adjusting q and the yag pulse laser adjusting q frequency multiplication respectively.?
In this experiment, we will analyze laser instrument output spy by realizing the conversion of three of the above mode of operation under fixed voltage
The change of property.Experimental procedure is as follows:
1. q assembly 2, opo transition components 4 and two frequency multiplication mirror assemblies 6 will be adjusted all to remove optical axis, turn on the power, pre-heating system.
2. supply voltage is fixed on a certain desired value on threshold voltage, length is pressed trigger switch, heard a sound of " serge "
After loose one's grip, observe target plate assembly 11 on experimental phenomena.Connect laser energy meter, pin pipe respectively and show before target plate assembly 11
Ripple device, band meter, the energy of measurement now laser instrument output, impulse waveform and spectrum simultaneously make a record.
3. keep supply voltage constant, move into and adjust q crystal 2.3, observe the experimental phenomena on target plate assembly 11.In target plate group
Laser energy meter, pin pipe and oscillograph, band meter, the energy of measurement now laser instrument output, impulse wave is connected respectively before part 11
Shape and spectrum simultaneously make a record, and are contrasted with the result that obtains in step 2, analyze reason.
4. keep supply voltage constant, insert frequency-doubling crystal 6.2 on the basis of step 3, observe on target plate assembly 11
Experimental phenomena.Laser energy meter, pin pipe and oscillograph, band meter, measurement now laser instrument is connected respectively before target plate assembly 11
The energy of output, impulse waveform and spectrum simultaneously make a record, and are contrasted with the result of acquisition in step 3, analyze reason.
5. change supply voltage twice, will adjust q assembly 2 and after two frequency multiplication mirror assemblies 6 remove optical axis, repeat step 2 arrives and walks
Rapid 4.
In this experiment, before insertion frequency-doubling crystal 6.2, target plate assembly 11 is invisible any experimental phenomena
, because 1064nm belongs to sightless wave band, it can be observed that occurring green on target plate assembly 11 after insertion frequency-doubling crystal 6.2
Light, in order to strengthen observing effect, can change the outfit a target plate assembly 11 with collecting lenses.Can see, adjust the arteries and veins of laser after q
Rush narrowed width, output energy has reduced, but relatively stable, and wavelength is almost unchanged.Experimental result also shows frequency multiplication
Export energy attenuation very little in front and back, shg efficiency is very high, and halving of wavelength is also very accurate.
Relevant comparative's experiment of f.opo
In five kinds of mode of operations of system, remaining two kinds is then relevant with opo, is that the yag pulse adjusting q swashs respectively
Optical pumping opo and the yag laser pumped by pulsed laser opo frequency multiplication adjusting q.Equally, we will be by fixed voltage in this experiment
The change to analyze output characteristic of laser for the lower conversion realizing both the above mode of operation.Experimental procedure is as follows:
1. opo transition components 4 are moved into optical axis, adjust q assembly 2 and two frequency multiplication mirror assembly 6 removal optical axis, turn on the power, in advance
Hot systems.
2. supply voltage is fixed on 750v, length is pressed trigger switch, loosed one's grip after the sound hearing " serge ", observes on target plate
Experimental phenomena.Laser energy meter, pin pipe and oscillograph, band meter, measurement now laser instrument output is connected respectively before target plate
Energy, impulse waveform and spectrum make a record.
3. keep supply voltage constant, move into and adjust q crystal 2.3, observe the experimental phenomena on target plate assembly 11.In target plate group
Laser energy meter, pin pipe and oscillograph, band meter, the energy of measurement now laser instrument output, impulse wave is connected respectively before part 11
Shape and spectrum simultaneously make a record, and are contrasted with the result that obtains in step 2, analyze reason.
4. keep supply voltage constant, insert frequency-doubling crystal 6.2 on the basis of step 3, observe on target plate assembly 11
Experimental phenomena.Laser energy meter, pin pipe and oscillograph, band meter, measurement now laser instrument is connected respectively before target plate assembly 11
The energy of output, impulse waveform and spectrum simultaneously make a record, and are contrasted with the result of acquisition in step 3, analyze reason.
Equally, in this experiment, before insertion frequency-doubling crystal 6.2, target plate is invisible any experimental phenomena,
Because 1570nm falls within sightless wave band, after insertion frequency-doubling crystal 6.2, HONGGUANG in target plate assembly 11.From impulse wave
After shape figure can be seen that opo, pulse width has no too big change, and pulsewidth then has a certain degree of pressure after frequency multiplication
Contracting.
The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (5)
- The experimental system of 1.yag pulse laser pump optical parametric oscillator it is characterised in that: include being positioned same optical axis In laser pump cavity assembly (1), adjust q assembly (2), the mirror assembly that is all-trans (3), opo transition components (4), the second outgoing mirror (5), two times Frequency mirror assembly (6) and target plate assembly (11), described laser pump cavity assembly (1), the mirror assembly that is all-trans (3) and the second outgoing mirror (5) are constituted The resonator cavity of yag laser instrument, sets up laser generation after energising in the resonator cavity of yag laser instrument, and described tune q assembly (2) is used for Yag laser instrument is made to export the short-pulse laser that energy is concentrated, described opo transition components (4) include ktp crystal (4.2) and first Outgoing mirror (4.3), described ktp crystal (4.2) constitutes the resonator cavity of optical parametric oscillator with the first outgoing mirror (4.3), is used for Set up, in the resonator cavity of optical parametric oscillator, the laser generation specifying optical parameter, and export laser, described two frequency multiplication mirrors Assembly (6) is used for converting laser light into the distinguishable green glow of human eye or HONGGUANG, and described target plate assembly (11) is used for showing green glow Or HONGGUANG；Described tune q assembly (2) includes adjusting q bearing (2.1), is provided with tune q crystal above described tune q bearing (2.1) (2.3), described tune q crystal (2.3) is rotated by the rotary shaft (2.2) being arranged on side；Described opo transition components include two ends Opo transition components support (4.1) of opening setting, ktp crystal (4.2), the first outgoing mirror (4.3) and rotating mechanism (4.4), institute State top, described ktp crystal (4.2) and the first outgoing mirror that rotating mechanism (4.4) is located at opo transition components support (4.1) (4.3) it is integrated, described ktp crystal (4.2) and the first outgoing mirror (4.3) are connected with rotating mechanism (4.4), positioned at institute State at the both ends open of opo transition components support (4.1).
- 2. the experimental system of yag pulse laser pump optical parametric oscillator according to claim 1, its feature exists Include the cavity (1.1) of both ends open, be located at xenon lamp (1.2) above described cavity (1.1) in: described laser pump cavity assembly (1) With the laser bar (1.3) on optical axis below described xenon lamp (1.2), described xenon lamp (1.2) is connected with power supply (10), and passes through Change supply voltage value and adjust output.
- 3. the experimental system of yag pulse laser pump optical parametric oscillator according to claim 1, its feature exists In: described two frequency multiplication mirror assemblies (6) include two frequencys multiplication mirror bearing (6.1) and frequency-doubling crystal (6.2), described frequency-doubling crystal (6.2) Coordinate with two frequency multiplication mirror bearing (6.1) grafting, described two frequency multiplication mirror bearing (6.1) intermediate formation perforation, described frequency-doubling crystal (6.2) it is located at the perforation of two frequencys multiplication mirror bearing (6.1).
- 4. the experimental system of yag pulse laser pump optical parametric oscillator according to claim 2, its feature exists In: described laser pump cavity assembly (1), adjust q assembly (2), the mirror assembly that is all-trans (3), opo transition components (4), the second outgoing mirror (5), two Frequency multiplication mirror assembly (6) and target plate assembly (11) are fixed on the same plane of base (7), described base (7) is provided with for The display (8) of display magnitude of voltage, the control panel (9) for Switching Power Supply and adjusting voltage and power supply (10).
- 5. the experimental system of yag pulse laser pump optical parametric oscillator according to claim 1, its feature exists In: described first outgoing mirror (4.3) is 1570nm outgoing mirror；Described second outgoing mirror (5) is 1064nm outgoing mirror.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673917A (en) * | 2009-09-29 | 2010-03-17 | 天津大学 | End-pumped mid-infrared KTA parametric oscillator |
| CN102331649A (en) * | 2011-10-22 | 2012-01-25 | 西北大学 | Multi-wavelength terahertz wave parametric oscillator |
| CN103346468A (en) * | 2013-06-09 | 2013-10-09 | 华侨大学 | All-solid-state Q-switching frequency multiplication non-diffracting laser device |
| CN204229718U (en) * | 2014-10-17 | 2015-03-25 | 中国人民解放军海军工程大学 | The experimental system of YAG pulsed laser pump optical parametric oscillator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673917A (en) * | 2009-09-29 | 2010-03-17 | 天津大学 | End-pumped mid-infrared KTA parametric oscillator |
| CN102331649A (en) * | 2011-10-22 | 2012-01-25 | 西北大学 | Multi-wavelength terahertz wave parametric oscillator |
| CN103346468A (en) * | 2013-06-09 | 2013-10-09 | 华侨大学 | All-solid-state Q-switching frequency multiplication non-diffracting laser device |
| CN204229718U (en) * | 2014-10-17 | 2015-03-25 | 中国人民解放军海军工程大学 | The experimental system of YAG pulsed laser pump optical parametric oscillator |
Non-Patent Citations (1)
| Title |
|---|
| 纳秒光学参量振荡器及其应用技术研究;万勇;《中国优秀硕博士论文全文数据库（博士）信息科技辑》;20070115;第76-83页，图6-10 * |
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