CN105375251A - Waveband wavelength optional human eye safety laser and realization method - Google Patents
Waveband wavelength optional human eye safety laser and realization method Download PDFInfo
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- CN105375251A CN105375251A CN201510886112.6A CN201510886112A CN105375251A CN 105375251 A CN105375251 A CN 105375251A CN 201510886112 A CN201510886112 A CN 201510886112A CN 105375251 A CN105375251 A CN 105375251A
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- 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
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08086—Multiple-wavelength emission
- H01S3/0809—Two-wavelenghth emission
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- 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
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Abstract
The invention discloses a waveband wavelength optional human eye safety laser and a realization method. The laser comprises a laser body and a pumped source. The optical path of the laser body is successively provided with an output cavity mirror, a nonlinear optical crystal, a composite cavity mirror, a laser crystal, a dichroic spectroscope, a first acousto-optic Q switch and a first total-reflection cavity mirror from a laser output end, the laser crystal employs a pumping source working in a side-surface pumping mode for pumping, and one side of the dichroic spectroscope is successively provided with a second acousto-optic Q switch and a second total-reflection cavity mirror. According to the technical scheme provided by the invention, two human eye safe waveband lasers generate and share one laser crystal and one nonlinear optical crystal, a fundamental frequency cavity structure and a common light parameter oscillation cavity which share half a cavity are employed, the structure is compact, fewer optical elements are needed, the cost can be greatly reduced, the system stability is good, and the operation is convenient. Besides, wavebands are generated through non-critical phase matched nonlinear optical crystals, and the laser provided by the invention has the advantages of being free from walk-off angles, being high in frequency conversion efficiency and realizing same-optical-path output.
Description
Technical field
The present invention relates to field of photoelectric technology, be specifically related to the optional eye-safe laser of a kind of band wavelength and implementation method.
Background technology
1.5 microns and 2.1 micron waveband laser are in hydrone absorption band, and when inciding human eye, major part is absorbed by crystalline lens, only have small part to arrive retina, thus can not damage human eye.In civilian and military every field such as laser precision distance measuring, air and environmental monitoring, laser radar, laser guided weapon and target identifications, there are important using value and wide market prospects.
In recent years, the approach that Solid State Laser obtains this wave band of laser mainly contains: utilize and mix Er
3+with mix Tm
3+, Ho
3+laser crystal can realize 1.5 micron wavebands respectively and 2.1 micron waveband laser directly export.But these three kinds of quasi-three-level structure active ions, ground state absorbs seriously again, causes laser threshold higher, and need the effective output being realized laser by refrigeration control at a lower temperature, Output of laser centre wavelength can along with variations in temperature.Also stimulated Raman scattering can be adopted Nd
3+1.3 micron waveband laser convert.But power output is by the restriction of available basic frequency laser, and power is generally lower.The human gingival fibroblasts of single wavelength can only be realized with upper type.In related application field, realize the optional Laser output of multi-wavelength, the demand to complete machine quantity can be reduced, reduce equipment cost.Such as in air and environmental monitoring are applied, the laser of multiple wavelength is monitored gas with various composition; The fields such as laser guided weapon and target identification, the application of the optional Output of laser of multi-wavelength, can enrich the selection to detector, obtains best sensitivity.Under normal circumstances, for realizing multi-wavelength optional laser light source, usually need the equipment that multi-station laser is integrated, need the switch controlling various lasers to realize in the laser process of conversion different wave length, and multi-station laser cost is very high, system is unstable.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide that a kind of reasonable in design, structure are simple, compact conformation, required optical element is less, cost is low, the stability of a system is good, the easy to operate optional eye-safe laser of band wavelength.
For achieving the above object, the invention provides following technical scheme: the optional eye-safe laser of a kind of band wavelength and pumping source, comprise laser bodies, the light path of laser bodies is disposed with output cavity mirror from laser output, nonlinear optical crystal, Compound Cavity mirror, laser crystal, dichroic beam splitter, the first acoustooptic Q-switching and first are all-trans chamber mirror, described laser crystal adopts the pumping source pumping of profile pump working method, and described dichroic beam splitter side is disposed with the second acoustooptic Q-switching and second and is all-trans chamber mirror.
By adopting technique scheme, two kinds of human eye safe waveband laser produce a public laser crystal and nonlinear optical crystal, half is adopted to be total to the fundamental frequency cavity configuration in chamber and to be total to optical parametric oscillation chamber, compact conformation, required optical element is less, can greatly reduce costs, the stability of a system is good, easy to operate.And wave band is all produced by the nonlinear optical crystal of noncritical phase matching, have without deviation angle, frequency conversion conversion efficiency is high, the advantage that same light path exports.
The present invention is set to further: described first acoustooptic Q-switching is to the anti-reflection acoustooptic Q-switching of 1.06 micron wavebands, and the described first chamber mirror that is all-trans is to the high anti-chamber mirror of 1.06 micron wavebands; Described second acoustooptic Q-switching is to the anti-reflection acoustooptic Q-switching of 1.34 micron wavebands, and the described second chamber mirror that is all-trans is to the high anti-chamber mirror of 1.34 micron wavebands; And described first acoustooptic Q-switching and first is all-trans position and described second acoustooptic Q-switching and second of chamber mirror be all-trans chamber mirror position can together with exchange.
The present invention is also set to further: described pumping source is the semiconductor laser of 808 nanometers.
The present invention is also set to further: described Compound Cavity mirror is coated with from 1.06 microns to the anti-reflection film of 1.34 micron waveband laser and the high-reflecting film to 1.5 micron wavebands and 2.1 micron waveband laser.
The present invention is also set to further: described output cavity mirror is coated with from 1.06 microns to the high-reflecting film of 1.34 micron waveband laser and the part reflectance coating to 1.5 micron wavebands and 2.1 micron waveband laser.
The present invention is also set to further: described nonlinear optical crystal is the arsenic acid titanyl potassium, arsenic acid titanyl rubidium, potassium titanium oxide phosphate or the rubidium oxygen titanium phosphate that cut by noncritical phase matching.
The present invention also provides a kind of optional human gingival fibroblasts implementation method of band wavelength as above, when dichroic beam splitter be to 1.06 micron wavebands anti-reflection penetrate and eyeglass to 1.34 micron waveband high reverse--bias time, acoustooptic Q-switching in parallel light path is to the anti-reflection acoustooptic Q-switching of plating 1.06 micron waveband, and the chamber mirror that is all-trans is the high anti-chamber mirror of plating 1.06 micron waveband; Acoustooptic Q-switching in folded optical path is to the anti-reflection acoustooptic Q-switching of plating 1.34 micron waveband, and the chamber mirror that is all-trans is the high anti-chamber mirror of plating 1.34 micron waveband; When dichroic beam splitter be to 1.34 micron wavebands anti-reflection penetrate and eyeglass to 1.06 micron waveband high reverse--bias time, the acoustooptic Q-switching in parallel light path is to the anti-reflection acoustooptic Q-switching of plating 1.34 micron waveband, and the chamber mirror that is all-trans is the high anti-chamber mirror of plating 1.34 micron waveband; Acoustooptic Q-switching in folded optical path is to the anti-reflection acoustooptic Q-switching of plating 1.06 micron waveband, and the chamber mirror that is all-trans is the high anti-chamber mirror of plating 1.06 micron waveband.
By controlling the driver of two acoustooptic Q-switchings, during every task, any one acoustooptic Q-switching can be selected to open, be in and adjust Q operating state, another acoustooptic Q-switching turns off simultaneously, is in high diffraction loss state, a wherein road laser can be selected like this to be in operating condition; 1.06 microns are all-trans in 1.06 microns of fundamental resonance chambeies of chamber mirror and output cavity mirror composition, 1.34 microns of fundamental resonance chambeies of 1.34 microns of be all-trans chamber mirror and output cavity mirror compositions; Compound Cavity mirror and output cavity mirror form optical parametric oscillation chamber, can meet the conversion that 1.06 micron wavebands and 1.34 micron waveband laser pumpings realize to 1.5 micron wavebands and 2.1 micron waveband laser respectively:
When 1.06 micron waveband acoustooptic Q-switchings are opened, the basic frequency laser of 1.06 micron wavebands will vibrate in 1.06 micron waveband fundamental resonance chambeies, realizing the conversion of 1.06 mum laser to 1.5 mum laser by the nonlinear optical crystal in optical parametric oscillation chamber, and vibration is strengthened in optical parametric oscillation chamber, and export 1.5 micron waveband laser by output cavity mirror part, now, 1.34 micron waveband fundamental frequency chambeies are turned off by 1.3 microns of acoustooptic Q-switchings, cannot obtain the laser of 2.1 microns;
When 1.34 micron waveband acoustooptic Q-switchings are opened, the basic frequency laser of 1.34 micron wavebands will vibrate in 1.34 micron waveband fundamental resonance chambeies, realizing the conversion of 1.34 mum laser to 2.1 mum laser by the nonlinear optical crystal in optical parametric oscillation chamber, and vibration is strengthened in optical parametric oscillation chamber, and export 2.1 micron waveband laser by output cavity mirror part, now, 1.06 micron waveband fundamental frequency chambeies are turned off by 1.06 microns of acoustooptic Q-switchings, cannot obtain the laser of 1.5 microns.
The present invention meets the conversion that 1.06 micron wavebands and 1.34 micron waveband laser pumpings realize to 1.5 micron wavebands and 2.1 micron waveband laser respectively.
Advantage of the present invention is: compared with prior art, output wavelength of the present invention is selected to enrich more flexibly, vibrational power flow is reasonable, two kinds of human eye safe waveband laser public laser crystals of generation and nonlinear optical crystal, adopt half be total to the fundamental frequency cavity configuration in chamber and be total to optical parametric oscillation chamber, compact conformation, required optical element is less, can greatly reduce costs, the stability of a system is good, easy to operate.And 1.5 micron waveband and 2.1 micron wavebands be all produced by the nonlinear optical crystal of noncritical phase matching, have without deviation angle, frequency conversion conversion efficiency is high, the advantage that same light path exports.
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
See Fig. 1, the optional eye-safe laser of a kind of band wavelength disclosed by the invention, comprise laser bodies, the light path of laser bodies is disposed with output cavity mirror 10 from laser output, nonlinear optical crystal 9, Compound Cavity mirror 8, laser crystal 6, dichroic beam splitter 3, first acoustooptic Q-switching 2 and first are all-trans chamber mirror 1, described laser crystal 6 side is provided with pumping source 7, and described dichroic beam splitter 3 side is disposed with the second acoustooptic Q-switching 4 and second and is all-trans chamber mirror 5.By dichroic beam splitter 3, the light path of laser bodies is divided into parallel light path and folded optical path, parallel light path is directly parallel with original optical path by dichroic beam splitter 3, and original optical path reflects folding by dichroic beam splitter 3 by folded optical path.
As preferably, output cavity mirror 10 described in the present embodiment, nonlinear optical crystal 9, Compound Cavity mirror 8, laser crystal 6, dichroic beam splitter 3, first the acoustooptic Q-switching 2 and first chamber mirror 1 that is all-trans sets gradually from right to left; Described pumping source 7 is arranged on directly over laser crystal 6, sets gradually the second acoustooptic Q-switching 4 and second from top to bottom and be all-trans chamber mirror 5 immediately below dichroic beam splitter 3; Described output cavity mirror 10, nonlinear optical crystal 9, Compound Cavity mirror 8, laser crystal 6, dichroic beam splitter 3, first acoustooptic Q-switching 2, first chamber mirror 1, second the acoustooptic Q-switching 4 and second chamber mirror 5 that is all-trans that is all-trans is fixed respectively by existing fixture, this technology is well known to those skilled in the art, and the present embodiment is just no longer described.
Described first acoustooptic Q-switching 2 is to the anti-reflection acoustooptic Q-switching of 1.06 micron wavebands, and the described first chamber mirror 1 that is all-trans is to the high anti-chamber mirror of 1.06 micron wavebands; Described second acoustooptic Q-switching 4 is to the anti-reflection acoustooptic Q-switching of 1.34 micron wavebands, and the described second chamber mirror 5 that is all-trans is to the high anti-chamber mirror of 1.34 micron wavebands; And described first acoustooptic Q-switching 2 and first is all-trans position and described second acoustooptic Q-switching 4 and second of chamber mirror 1 be all-trans chamber mirror 5 position can together with exchange.Namely described first acoustooptic Q-switching 2 with the first position of being all-trans chamber mirror 1 be together with change, described second acoustooptic Q-switching 4 with the second position of being all-trans chamber mirror 5 be together with change.
The laser crystal that described laser crystal 6 is mixed disastrously for neodymium ion.As: Nd:YAG, Nd:YAP, Nd:YVO
4deng.The pumping source 7 adopted is semiconductor lasers of 808nm.
Described Compound Cavity mirror 8 is coated with from 1.06 microns to the anti-reflection film of 1.34 micron waveband laser and the high-reflecting film to 1.5 micron wavebands and 2.1 micron waveband laser.
Described nonlinear optical crystal 9 is for cutting (θ=90 by noncritical phase matching
0, φ=0) arsenic acid titanyl potassium, arsenic acid titanyl rubidium, potassium titanium oxide phosphate or rubidium oxygen titanium phosphate.
Described output cavity mirror 10 is coated with from 1.06 microns to the high-reflecting film of 1.34 micron waveband laser and the part reflectance coating to 1.5 micron wavebands and 2.1 micron waveband laser.
The present invention also provides a kind of optional human gingival fibroblasts implementation method of band wavelength as above, when dichroic beam splitter be to 1.06 micron wavebands anti-reflection penetrate and eyeglass to 1.34 micron waveband high reverse--bias time, acoustooptic Q-switching in parallel light path is to the anti-reflection acoustooptic Q-switching of plating 1.06 micron waveband, and the chamber mirror that is all-trans is the high anti-chamber mirror of plating 1.06 micron waveband; Acoustooptic Q-switching in folded optical path is to the anti-reflection acoustooptic Q-switching of plating 1.34 micron waveband, and the chamber mirror that is all-trans is the high anti-chamber mirror of plating 1.34 micron waveband; When dichroic beam splitter be to 1.34 micron wavebands anti-reflection penetrate and eyeglass to 1.06 micron waveband high reverse--bias time, the acoustooptic Q-switching in parallel light path is to the anti-reflection acoustooptic Q-switching of plating 1.34 micron waveband, and the chamber mirror that is all-trans is the high anti-chamber mirror of plating 1.34 micron waveband; Acoustooptic Q-switching in folded optical path is to the anti-reflection acoustooptic Q-switching of plating 1.06 micron waveband, and the chamber mirror that is all-trans is the high anti-chamber mirror of plating 1.06 micron waveband.
By controlling the driver of two acoustooptic Q-switchings, during every task, any one acoustooptic Q-switching can be selected to open, be in and adjust Q operating state, another acoustooptic Q-switching turns off simultaneously, is in high diffraction loss state, a wherein road laser can be selected like this to be in operating condition; 1.06 microns are all-trans in 1.06 microns of fundamental resonance chambeies of chamber mirror and output cavity mirror composition, 1.34 microns of fundamental resonance chambeies of 1.34 microns of be all-trans chamber mirror and output cavity mirror compositions; Compound Cavity mirror and output cavity mirror form optical parametric oscillation chamber, can meet the conversion that 1.06 micron wavebands and 1.34 micron waveband laser pumpings realize to 1.5 micron wavebands and 2.1 micron waveband laser respectively:
When 1.06 micron waveband acoustooptic Q-switchings are opened, the basic frequency laser of 1.06 micron wavebands will vibrate in 1.06 micron waveband fundamental resonance chambeies, realizing the conversion of 1.06 mum laser to 1.5 mum laser by the nonlinear optical crystal in optical parametric oscillation chamber, and vibration is strengthened in optical parametric oscillation chamber, and export 1.5 micron waveband laser by output cavity mirror part, now, 1.34 micron waveband fundamental frequency chambeies are turned off by 1.3 microns of acoustooptic Q-switchings, cannot obtain the laser of 2.1 microns;
When 1.34 micron waveband acoustooptic Q-switchings are opened, the basic frequency laser of 1.34 micron wavebands will vibrate in 1.34 micron waveband fundamental resonance chambeies, realizing the conversion of 1.34 mum laser to 2.1 mum laser by the nonlinear optical crystal in optical parametric oscillation chamber, and vibration is strengthened in optical parametric oscillation chamber, and export 2.1 micron waveband laser by output cavity mirror part, now, 1.06 micron waveband fundamental frequency chambeies are turned off by 1.06 microns of acoustooptic Q-switchings, cannot obtain the laser of 1.5 microns.
The present invention meets the conversion that 1.06 micron wavebands and 1.34 micron waveband laser pumpings realize to 1.5 micron wavebands and 2.1 micron waveband laser respectively.
The eye-safe Output of laser that the object of the invention is in order to 1.5 microns of realizing high-power high-efficiency and 2.1 micron waveband wavelength selectable exports, adopt the half cobasis cavity configuration frequently of a public laser crystal, realize the basic frequency laser vibration of 1.06 micron wavebands and 1.34 micron wavebands, intracavity pump only comprises the optical parametric oscillation cavity configuration of the nonlinear optical crystal of a noncritical phase matching, finally can realize the output of two kinds of human gingival fibroblasts same light path wavelength selectable.Output wavelength is selected abundant flexibly, and vibrational power flow is reasonable, and compact conformation, required optical element is less, can greatly reduce costs, and the stability of a system is good, easy to operate.And 1.5 micron waveband and 2.1 micron wavebands be all produced by the nonlinear optical crystal of noncritical phase matching, have without deviation angle, frequency conversion conversion efficiency is high, the advantage that same light path exports.
Above-described embodiment is to specific descriptions of the present invention; only be used to further illustrate the present invention; can not be interpreted as limiting the scope of the present invention, the technician of this area makes some nonessential improvement according to the content of foregoing invention to the present invention and adjustment all falls within protection scope of the present invention.
Claims (8)
1. the optional eye-safe laser of band wavelength, comprise laser bodies and pumping source, it is characterized in that: the light path of laser bodies is disposed with output cavity mirror from laser output, nonlinear optical crystal, Compound Cavity mirror, laser crystal, dichroic beam splitter, the first acoustooptic Q-switching and first are all-trans chamber mirror, described laser crystal adopts the pumping source pumping of profile pump working method, and described dichroic beam splitter side is disposed with the second acoustooptic Q-switching and second and is all-trans chamber mirror; By dichroic beam splitter, the light path of laser bodies is divided into parallel light path and folded optical path, parallel light path is directly parallel with original optical path by dichroic beam splitter, original optical path reflects folding by dichroic beam splitter by folded optical path, described dichroic beam splitter penetrates 1.06 micron wavebands are anti-reflection, and to the eyeglass of 1.34 micron waveband high reverse--bias or penetrate 1.34 micron wavebands are anti-reflection, and the eyeglass to 1.04 micron waveband high reverse--bias.
2. the optional eye-safe laser of a kind of band wavelength according to claim 1, is characterized in that: described first acoustooptic Q-switching is to the anti-reflection acoustooptic Q-switching of 1.06 micron wavebands, and the described first chamber mirror that is all-trans is to the high anti-chamber mirror of 1.06 micron wavebands; Described second acoustooptic Q-switching is to the anti-reflection acoustooptic Q-switching of 1.34 micron wavebands, and the described second chamber mirror that is all-trans is to the high anti-chamber mirror of 1.34 micron wavebands; And described first acoustooptic Q-switching and first is all-trans position and described second acoustooptic Q-switching and second of chamber mirror be all-trans chamber mirror position can together with exchange.
3. the optional eye-safe laser of a kind of band wavelength according to claim 2, is characterized in that: described pumping source is the semiconductor laser of 808 nanometers.
4. the optional eye-safe laser of a kind of band wavelength according to claim 3, is characterized in that: described Compound Cavity mirror is coated with anti-reflection film and high-reflecting film.
5. the optional eye-safe laser of a kind of band wavelength according to claim 4, is characterized in that: described output cavity mirror is coated with high-reflecting film and reflectance coating.
6. the optional eye-safe laser of a kind of band wavelength according to claim 5, is characterized in that: described nonlinear optical crystal is the arsenic acid titanyl potassium, arsenic acid titanyl rubidium, potassium titanium oxide phosphate or the rubidium oxygen titanium phosphate that cut by noncritical phase matching.
7. the implementation method of the optional eye-safe laser of a kind of band wavelength according to claim 6, it is characterized in that: when dichroic beam splitter be to 1.06 micron wavebands anti-reflection penetrate and eyeglass to 1.34 micron waveband high reverse--bias time, acoustooptic Q-switching in parallel light path is to the anti-reflection acoustooptic Q-switching of plating 1.06 micron waveband, and the chamber mirror that is all-trans is the high anti-chamber mirror of plating 1.06 micron waveband; Acoustooptic Q-switching in folded optical path is to the anti-reflection acoustooptic Q-switching of plating 1.34 micron waveband, and the chamber mirror that is all-trans is the high anti-chamber mirror of plating 1.34 micron waveband; When dichroic beam splitter be to 1.34 micron wavebands anti-reflection penetrate and eyeglass to 1.06 micron waveband high reverse--bias time, the acoustooptic Q-switching in parallel light path is to the anti-reflection acoustooptic Q-switching of plating 1.34 micron waveband, and the chamber mirror that is all-trans is the high anti-chamber mirror of plating 1.34 micron waveband; Acoustooptic Q-switching in folded optical path is to the anti-reflection acoustooptic Q-switching of plating 1.06 micron waveband, and the chamber mirror that is all-trans is the high anti-chamber mirror of plating 1.06 micron waveband.
8. the implementation method of the optional eye-safe laser of a kind of band wavelength according to claim 7, it is characterized in that: by controlling the driver of two acoustooptic Q-switchings, during every task, any one acoustooptic Q-switching can be selected to open, be in and adjust Q operating state, another acoustooptic Q-switching turns off simultaneously, is in high diffraction loss state, a wherein road laser can be selected like this to be in operating condition; 1.06 microns are all-trans in 1.06 microns of fundamental resonance chambeies of chamber mirror and output cavity mirror composition, 1.34 microns of fundamental resonance chambeies of 1.34 microns of be all-trans chamber mirror and output cavity mirror compositions; Compound Cavity mirror and output cavity mirror form optical parametric oscillation chamber, can meet the conversion that 1.06 micron wavebands and 1.34 micron waveband laser pumpings realize to 1.5 micron wavebands and 2.1 micron waveband laser respectively:
When 1.06 micron waveband acoustooptic Q-switchings are opened, the basic frequency laser of 1.06 micron wavebands will vibrate in 1.06 micron waveband fundamental resonance chambeies, realizing the conversion of 1.06 mum laser to 1.5 mum laser by the nonlinear optical crystal in optical parametric oscillation chamber, and vibration is strengthened in optical parametric oscillation chamber, and export 1.5 micron waveband laser by output cavity mirror part, now, 1.34 micron waveband fundamental frequency chambeies are turned off by 1.3 microns of acoustooptic Q-switchings, cannot obtain the laser of 2.1 microns;
When 1.34 micron waveband acoustooptic Q-switchings are opened, the basic frequency laser of 1.34 micron wavebands will vibrate in 1.34 micron waveband fundamental resonance chambeies, realizing the conversion of 1.34 mum laser to 2.1 mum laser by the nonlinear optical crystal in optical parametric oscillation chamber, and vibration is strengthened in optical parametric oscillation chamber, and export 2.1 micron waveband laser by output cavity mirror part, now, 1.06 micron waveband fundamental frequency chambeies are turned off by 1.06 microns of acoustooptic Q-switchings, cannot obtain the laser of 1.5 microns.
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| CN106253053A (en) * | 2016-08-31 | 2016-12-21 | 深圳大学 | Generator, production method and the application of a kind of 2.1 micron waveband pulse lasers |
| WO2018040021A1 (en) * | 2016-08-31 | 2018-03-08 | 深圳大学 | GENERATION DEVICE AND METHOD FOR 2.1 μM WAVEBAND PULSE LASER AND USE THEREOF |
| CN110768092A (en) * | 2019-10-28 | 2020-02-07 | 华中科技大学 | Laser regenerative amplifier based on acousto-optic effect |
| CN110932072A (en) * | 2019-11-28 | 2020-03-27 | 北京交通大学 | Synchronous spectrum-overlapped multi-wavelength pulse laser |
| CN110988891A (en) * | 2019-12-26 | 2020-04-10 | 广州市慧建科技有限公司 | Laser scanning target identification system and method |
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| CN106099625A (en) * | 2016-08-26 | 2016-11-09 | 山东大学 | A kind of Terahertz based on arsenic acid titanyl rubidium crystal produces system and method for work thereof |
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