CN105514791A - Laser device and method for generating adjustable series pulse by square wave pumping to adjust Q for multiple times - Google Patents
Laser device and method for generating adjustable series pulse by square wave pumping to adjust Q for multiple times Download PDFInfo
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- CN105514791A CN105514791A CN201610035412.8A CN201610035412A CN105514791A CN 105514791 A CN105514791 A CN 105514791A CN 201610035412 A CN201610035412 A CN 201610035412A CN 105514791 A CN105514791 A CN 105514791A
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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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
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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
- H01S3/094076—Pulsed or modulated pumping
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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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
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Abstract
The invention discloses a laser device and method for generating adjustable series pulse by square wave pumping to adjust Q for multiple times, relating to the technical field of laser. The device comprises a Q adjusting unit, and a total reflection mirror, a Q adjusting crystal, a quarter-wave plate, a polaroid, a pumping device and an output mirror which are coaxially and sequentially arranged in the laser beam transmission direction of the device. The method comprises the following steps: enabling a pumping source to start working, and accumulating high energy level electrons, wherein laser pulse output does not occur; when the accumulation of the high energy level electrons reaches a preset value, starting to apply voltage on the Q adjusting crystal, forming laser oscillation in a resonant cavity, and enabling the accumulated high energy level electrons to transit to a low energy level and release photons, thus outputting a first laser pulse; by starting from the output of the first laser pulse, outputting one laser pulse at every time interval t to form a laser pulse string until the pumping source stops working. By adopting the laser device and method, adjustable series pulse laser is generated by using long pulse square wave pumping to adjust Q for multiple times, and output parameter change of a laser and damage to optical devices of the laser are avoided.
Description
Technical field
The present invention relates to laser technology field, particularly relate to a kind of square wave pumping and repeatedly adjust Q to produce laser aid and the method for adjustable series impulse.
Background technology
The laser series impulse comprising some laser pulses is widely used in fields such as gas ions diagnosis and pulse laser lightings, gas ions diagnosis and these two kinds of application of pulse laser lighting require that laser pulse interval is adjustable between 100 microsecond-300 microseconds, and, pumping pulse that what the laser of current use adopted is and Q impulse one to one method to produce laser series impulse, the defect that this method exists: if regulate the pulse number in laser series impulse and pulse spacing, the output parameter of laser will be made to change, laser internal optics components and parts even can be caused to damage.
Summary of the invention
The object of the present invention is to provide a kind of square wave pumping repeatedly to adjust Q to produce laser aid and the method for adjustable series impulse, thus solve the foregoing problems existed in prior art.
To achieve these goals, square wave pumping of the present invention repeatedly adjusts Q to produce the laser aid of adjustable series impulse, coaxially arranges completely reflecting mirror, adjusting Q crystal, quarter-wave plate, polarizer, pump arrangement and outgoing mirror in turn in the laser beam propagation direction of described laser aid.
Preferably, described device also comprises the tune Q circuit be connected with described adjusting Q crystal, and described tune Q circuit is fixed in the outer position near described adjusting Q crystal of resonant cavity.
Preferably, described completely reflecting mirror is towards the side plating total reflection film of described Q-modulating device.
Preferably, described pump arrangement comprises pumping source and laser crystal, described pumping source comprises pump cavity and the xenon flash lamp be fixed in described pump cavity or laser diode, described laser crystal is fixed on described pump cavity, and the axial direction of described laser crystal is identical with described laser beam propagation direction.
The present invention is based on laser aid that described square wave pumping repeatedly adjusts Q to produce adjustable series impulse to realize square wave pumping and repeatedly adjust Q to produce the laser means of adjustable series impulse, it is characterized in that, the method comprises:
Completely reflecting mirror and outgoing mirror composition resonant cavity;
Arrange and adjust Q circuit to adjusting Q crystal alive time interval t and alive number of times m;
Pumping source is started working, high level electronics is accumulated in laser crystal in pump arrangement, export without laser pulse, when high level electron accumulation amount reaches preset value, start to adjusting Q crystal making alive, form laser generation in resonant cavity, make the high level electronics of accumulation to low-lying level transition and discharge photon, exporting first laser pulse;
From first laser pulse exports, after time interval t, export a laser pulse, form laser pulse string, until pumping source quits work.
Preferably, in the pump pulse duration that pumping source is formed, alive time interval t and alive number of times M can be regulated arbitrarily, described making alive number of times m is identical with the laser pulse number in the pulse train of output, and the pulse spacing between adjacent two laser pulses is with adjacent twice alive time interval t is identical one to one;
The pumping pulse that described pumping source is formed is the pumping of long pulse square wave.
Preferably, Q circuit is adjusted to be 10 to the magnitude of adjusting Q crystal alive making alive time
-9s.
Preferably, the first laser pulse signal exports, and is specially:
S1, pumping source is started working;
S2, not to adjusting Q crystal making alive, the photon produced in pump arrangement successively after polarizer, quarter-wave plate, adjusting Q crystal, be totally reflected mirror reflection return along former road after successively through adjusting Q crystal and quarter-wave plate, be polarized sheet and reflect resonant cavity; Export without laser pulse;
S3, laser crystal constantly accumulates high level electronics until the accumulation of high level electronics reaches preset value, Q circuit is adjusted to start to apply voltage to adjusting Q crystal, the spontaneous radiation photon emitted from pump arrangement is made to enter laser crystal after phase changing capacity is 2 π, lure that high level electronics discharges photon to low-lying level transition into, number of photons sharply increases, feed back through resonant cavity, photon comes and goes several times in laser crystal, luminously from pumping source enter to spontaneous radiation photon the electronics that laser crystal transits to upper energy level during this period of time and all can transit to lower energy level and discharge the photon of corresponding quantity, form a laser giant pulse and export,
S4, adjusts Q circuit to stop applying voltage to adjusting Q crystal, repeats S2-S3; Adjacent twice alive time interval t is equal.
Preferably, in the pulse duration of the luminescence of pumping source, adjust Q circuit adjustable to adjusting Q crystal alive time interval t and alive number of times M.
Preferably, Q circuit is adjusted to be high pressure to the voltage that adjusting Q crystal adds.
The invention has the beneficial effects as follows:
Longer in the pump light pulse duration of pumping source and the intensity of pump light within the pumping time is consistent, adjust Q circuit to add the high-voltage pulse of some to adjusting Q crystal with certain hour interval, realize output laser pulse string; The method of the invention is by regulating the number of Q high-voltage pulse and adjusting the time interval between Q high-voltage pulse, the laser series impulse that production burst number, pulse spacing all can regulate continuously, due within the duration that all tune Q high pressure are included in pumping pulse, so the thermal effect in laser crystal can not be changed between the pulse number changing laser series impulse and pulse during interval, and then keep stablizing and avoiding the damage of laser optical components and parts of laser output parameters.
Q is repeatedly adjusted to produce adjustable series impulse laser by present invention achieves with the pumping of long pulse square wave, prevent because the pulse number in the series impulse of change laser and pulse spacing make laser crystal thermal effect change, and cause laser output parameters to change and the damage of laser optical components and parts.By regulating the number of Q signal and adjusting the time interval between Q signal in pump pulse duration, realization regulates the time interval between laser pulse number and laser pulse comprised in the middle of laser pulse string, because all Q impulses all appear within the pumping source LED pulse duration, so pulse number in pulse train and pulse interval change all can not make the change of laser crystal internal heat effect, thus ensure the safety of the stable of laser output-index and laser components and parts.
Accompanying drawing explanation
Fig. 1 is that square wave pumping repeatedly adjusts Q to produce the laser device structure schematic diagram of adjustable series impulse;
Fig. 2 is that square wave pumping repeatedly adjusts Q to produce the timing diagram of adjustable series impulse resonant cavity.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.Should be appreciated that embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Core of the present invention: longer in the pump light pulse duration of pumping source and the intensity of pump light within the pumping time is consistent, Q circuit is adjusted to add the high-voltage pulse of some to adjusting Q crystal with certain hour interval, realize output laser pulse string, the method of the invention is by regulating the number of Q high-voltage pulse and adjusting the time interval between Q high-voltage pulse, production burst number, the laser series impulse that pulse spacing all can regulate continuously, due within the duration that all tune Q high pressure are included in pumping pulse, so the thermal effect in laser crystal can not be changed between the pulse number changing laser series impulse and pulse during interval, and then keep stablizing and avoiding the damage of laser optical components and parts of laser output parameters.
Embodiment:
With reference to Fig. 1, square wave pumping repeatedly adjusts Q to produce the laser aid of adjustable series impulse, coaxially arranges completely reflecting mirror 1, adjusting Q crystal 2, quarter-wave plate 3, polarizer 4, pump arrangement 5 and outgoing mirror 6 in turn in the laser beam propagation direction of described laser aid.
Described device also comprises the tune Q circuit 7 be connected with described adjusting Q crystal 2, and described tune Q circuit 7 is arranged near described laser beam propagation direction.Described completely reflecting mirror 1 is towards the side plating total reflection film of described Q-modulating device.
Described pump arrangement comprises pumping source and laser crystal, described pumping source comprises pump cavity and the xenon flash lamp be fixed in described pump cavity or laser diode, described laser crystal is fixed on described pump cavity, and the axial direction of described laser crystal is identical with described laser beam propagation direction.
In accompanying drawing 1, components and parts 1 and components and parts 6 form the resonant cavity of laser, and its effect is for the gain inside particles energy level transition generation stimulated radiation in laser crystal provides feedback, and screens photonic nature; In accompanying drawing 1, components and parts 5 are pump cavity, are made up of pumping source and laser crystal, the level structure that the gain particle in laser crystal provides necessary for producing laser, and pumping source provides energy for gain particle generation energy level transition; Components and parts 4 in accompanying drawing are polarizer, and its effect is screened the polarization state of the photon transmitted in resonant cavity; Components and parts 3 in accompanying drawing 1 are quarter wave plate, its effect is the photon generation phase change making to pass through, phase change amount changes because of the crystalline axis direction of quarter wave plate and the angle in photon polarization state direction, and in the present invention, photon is pi/2 by this variable of quarter wave plate phase place at every turn; Components and parts 2 in accompanying drawing 1 are adjusting Q crystal, components and parts 7 are for adjusting Q circuit, the characteristic of adjusting Q crystal is, if adjust Q circuit to add corresponding voltage to adjusting Q crystal, can electro optic effect be there is in adjusting Q crystal, make the photon generation phase change passed through, the knots modification of phase place and the characteristic of adjusting Q crystal and the voltage adjusting Q circuit to be added on adjusting Q crystal relevant, adjust Q circuit to the phase change pi/2 of the photon made after adjusting Q crystal making alive by adjusting Q crystal in the present invention.
Components and parts 3 in accompanying drawing 1, namely quarter wave plate is a vitals in laser, but it is dispensable, if cancelled by quarter wave plate, make tune Q circuit always to adjusting Q crystal making alive simultaneously, remove voltage wanting to allow when laser Output of laser, just can form laser generation in laser resonant cavity, Output of laser, if but long-time use like this can produce bad effect to adjusting Q crystal, so mostly do not adopt this mode of operation.
The laser aid repeatedly adjusting Q to produce adjustable series impulse based on described square wave pumping realizes square wave pumping and repeatedly adjusts Q to produce the laser means of adjustable series impulse, and the method comprises:
Completely reflecting mirror and outgoing mirror composition resonant cavity;
Arrange and adjust Q circuit to adjusting Q crystal alive time interval t and alive number of times M;
Pumping source is started working, high level electronics is accumulated in laser crystal in pump arrangement, export without laser pulse, when high level electron accumulation amount reaches preset value, start to adjusting Q crystal making alive, form laser generation in resonant cavity, make the high level electronics of accumulation to low-lying level transition and discharge photon, exporting first laser pulse;
From first laser pulse exports, after time interval t, export a laser pulse, form laser pulse string, until pumping source quits work.
Be more specifically:
(1) in the pump pulse duration that pumping source is formed, alive time interval t and alive number of times M can be regulated arbitrarily, described making alive number of times m is identical with the laser pulse number in the pulse train of output, and the pulse spacing between adjacent two laser pulses is with adjacent twice alive time interval t is identical one to one.
(2) Q circuit is adjusted to be 10 to the magnitude of adjusting Q crystal alive making alive time
-9s.
In the pulse duration of the luminescence of pumping source, adjust Q circuit adjustable to adjusting Q crystal alive time interval t and alive number of times M.
Q circuit is adjusted to be high-voltage pulse to the voltage that adjusting Q crystal adds.
(3) first laser pulse signals export, and are specially:
S1, pumping source is started working;
S2, not to adjusting Q crystal making alive, the photon produced in pump arrangement successively after polarizer, quarter-wave plate, adjusting Q crystal, be totally reflected mirror reflection return along former road after successively through adjusting Q crystal and quarter-wave plate, be polarized sheet and reflect resonant cavity; Export without laser pulse;
S3, laser crystal constantly accumulates high level electronics until the accumulation of high level electronics reaches preset value, Q circuit is adjusted to start to apply voltage to adjusting Q crystal, the spontaneous radiation photon emitted from pump arrangement is made to enter laser crystal after phase changing capacity is 2 π, lure that high level electronics discharges photon to low-lying level transition into, number of photons sharply increases, feed back through resonant cavity, photon comes and goes several times in laser crystal, luminously from pumping source enter to spontaneous radiation photon the electronics that laser crystal transits to upper energy level during this period of time and all can transit to lower energy level and discharge the photon of corresponding quantity, form a laser giant pulse and export,
S4, adjusts Q circuit to stop applying voltage to adjusting Q crystal, repeats S2-S3; Adjacent twice alive time interval t is equal.
The time exporting whole pulse train is less than a work period of pumping source.
Pump cavity completes the wide pumping of square wave long pulse, the pulse duration of pumping source luminescence is ms magnitude, during this period of time, by controlling the interval of adjusting the number of Q voltage and adjusting between Q potential pulse, pulse number and the pulse spacing of the series impulse of laser Output of laser can just be regulated.
The production process of series impulse laser is as follows:
Pumping source luminescence makes the gain inside particles low-lying level electron transition in laser crystal to high level and rests on high level, portions of electronics meeting spontaneous radiation is had during this, low-lying level is transitted to from high level, discharge the photon identical with the electron amount that spontaneous radiation occurs simultaneously, these photons are after polarizer, the polarization state photon consistent with polarizer printing opacity direction is only had to pass through polarizer, by the photon of polarizer through quarter wave plate, its phase change pi/2, again through there is no alive adjusting Q crystal, phase place does not change, components and parts 1 in accompanying drawing are the rear mirror of laser, rear mirror is coated with 0 ° of incident total reflection film to laser Output of laser wavelength, therefore photon passes through after being returned along former road by reflection does not again have alive adjusting Q crystal, its phase place can not change equally, again through quarter wave plate, its phase place changes pi/2 again, the phase changing capacity of such twice photon after quarter wave plate is π, corresponding polarization state variable quantity is pi/2, namely now the polarization state of photon is vertical with the printing opacity direction of polarizer, photon will be polarized sheet and reflect resonant cavity, also just again laser crystal can not be entered, while the photon of spontaneous radiation generation is reflected resonant cavity, pumping source also provides energy ceaselessly to the energy level transition of gain inside particles in laser crystal, the electronics of upper energy level constantly increases, if when upper energy level electron number is more, adjust Q circuit to adjusting Q crystal making alive, adjusting Q crystal will play the effect identical with quarter wave plate, i.e. photon twice phase change π after adjusting Q crystal, add twice phase change amount through quarter wave plate like this, time photon is transferred to polarizer again, its phase changing capacity is 2 π, photon polarization state direction is consistent with the printing opacity direction of polarizer, polarizer can be passed through, spontaneous radiation photon again enters laser crystal and will lure the downward energy level transition of energy level electronics into and discharge photon, number of photons can in sharply increasing, feed back through resonant cavity, photon comes and goes several times in laser crystal, luminously from pumping source enter to spontaneous radiation photon the electronics that laser crystal transits to upper energy level during this period of time and all can transit to lower energy level and discharge the photon of corresponding quantity, form the very high laser giant pulse of peak power and pass through, Q circuit is adjusted very shortly to only have 10 to the adjusting Q crystal alive time
-9s magnitude, that is adjusting Q circuit to be added in, adjusting Q crystal is a potential pulse, and the laser pulse width that laser exports also is 10
-9s magnitude.
By adopting technique scheme disclosed by the invention, obtain effect useful as follows: repeatedly adjust Q to produce adjustable series impulse laser by present invention achieves with the pumping of long pulse square wave, prevent because the pulse number in for a change laser series impulse and pulse spacing make laser crystal thermal effect change, and cause laser output parameters to change and the damage of laser optical components and parts.By regulating the number of Q signal and adjusting the time interval between Q signal in pump pulse duration, realization regulates the time interval between laser pulse number and laser pulse comprised in the middle of laser pulse string, because all Q impulses all appear within the pumping source LED pulse duration, so pulse number in pulse train and pulse interval change all can not make the change of laser crystal internal heat effect, thus ensure the safety of the stable of laser output-index and laser components and parts, increase the useful life of pumping source.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should look protection scope of the present invention.
Claims (10)
1. a square wave pumping repeatedly adjusts Q to produce the laser aid of adjustable series impulse, it is characterized in that, in the laser beam propagation direction of described laser aid, coaxially completely reflecting mirror, adjusting Q crystal, quarter-wave plate, polarizer, pump arrangement and outgoing mirror are set in turn; Described laser aid also comprises the tune Q unit be connected with adjusting Q crystal.
2. laser aid according to claim 1, is characterized in that, described tune Q unit adjusts Q circuit, and described tune Q circuit is fixed in the outer position near described adjusting Q crystal of resonant cavity.
3. laser aid according to claim 1, it is characterized in that, described completely reflecting mirror is towards the side plating total reflection film of described Q-modulating device.
4. laser aid according to claim 1, it is characterized in that, described pump arrangement comprises pumping source and laser crystal, described pumping source comprises pump cavity and the xenon flash lamp be fixed in described pump cavity or laser diode, described laser crystal is fixed on described pump cavity, and the axial direction of described laser crystal is identical with described laser beam propagation direction.
5. the laser aid repeatedly adjusting Q to produce adjustable series impulse based on square wave pumping described in claim 1-4 any one realizes square wave pumping and repeatedly adjusts Q to produce a laser means for adjustable series impulse, and it is characterized in that, the method comprises:
Completely reflecting mirror and outgoing mirror composition resonant cavity;
Arrange and adjust Q circuit to adjusting Q crystal alive time interval t and alive number of times m;
Pumping source is started working, high level electronics is accumulated in laser crystal in pump arrangement, export without laser pulse, when high level electron accumulation amount reaches preset value, start to adjusting Q crystal making alive, form laser generation in resonant cavity, make the high level electronics of accumulation to low-lying level transition and discharge photon, exporting first laser pulse;
From first laser pulse exports, export a laser pulse every time interval t, form laser pulse string, until pumping source quits work.
6. method according to claim 5, it is characterized in that, in the pump pulse duration that pumping source is formed, alive time interval t and alive number of times M can be regulated arbitrarily, described making alive number of times m is identical with the laser pulse number in the pulse train of output, and the pulse spacing between adjacent two laser pulses is with adjacent twice alive time interval t is identical one to one;
The pumping pulse that described pumping source is formed is the pumping of long pulse square wave.
7. method according to claim 5, is characterized in that, adjusts Q circuit to be 10 to the magnitude of adjusting Q crystal alive making alive time
-9s.
8. method according to claim 5, is characterized in that, the first laser pulse signal exports, and is specially:
S1, pumping source is started working;
S2, not to adjusting Q crystal making alive, the photon produced in pump arrangement successively after polarizer, quarter-wave plate, adjusting Q crystal, be totally reflected mirror reflection return along former road after successively through adjusting Q crystal and quarter-wave plate, be polarized sheet and reflect resonant cavity; Export without laser pulse;
S3, laser crystal constantly accumulates high level electronics until the accumulation of high level electronics reaches preset value, Q circuit is adjusted to start to apply voltage to adjusting Q crystal, the spontaneous radiation photon emitted from pump arrangement is made to enter laser crystal after phase changing capacity is 2 π, lure that high level electronics discharges photon to low-lying level transition into, number of photons sharply increases, feed back through resonant cavity, photon comes and goes several times in laser crystal, luminously from pumping source enter to spontaneous radiation photon the electronics that laser crystal transits to upper energy level during this period of time and all can transit to lower energy level and discharge the photon of corresponding quantity, form a laser giant pulse and export,
S4, adjusts Q circuit to stop applying voltage to adjusting Q crystal, repeats S2-S3; Adjacent twice alive time interval t is equal.
9. method according to claim 5, is characterized in that, in the pulse duration of the luminescence of pumping source, adjusts Q circuit adjustable to adjusting Q crystal alive time interval t and alive number of times M.
10. method according to claim 5, is characterized in that, adjusts Q circuit to be high pressure to the voltage that adjusting Q crystal adds.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963746A (en) * | 2017-05-24 | 2018-12-07 | 中国科学院理化技术研究所 | The application method of laser, the laser of adjustable pulse width and its application method |
| CN106735893B (en) * | 2016-11-29 | 2019-08-13 | 大族激光科技产业集团股份有限公司 | A method of realizing that laser micro welding connects |
| CN110165539A (en) * | 2019-05-24 | 2019-08-23 | 长春理工大学 | The adjustable output method in subpulse group interval and laser are realized in multi-step pumping |
| CN110247288A (en) * | 2019-07-05 | 2019-09-17 | 电子科技大学 | Room temperature semiconductor maser and its application |
| CN110932074A (en) * | 2019-05-09 | 2020-03-27 | 长春理工大学 | Dual-wavelength laser cross frequency hopping and frequency modulation Q output laser and laser output method |
| CN111029893A (en) * | 2019-05-09 | 2020-04-17 | 长春理工大学 | Dual-wavelength alternate Q-switching single longitudinal mode output group pulse laser and laser output method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075571Y (en) * | 2007-08-01 | 2008-06-18 | 上海奥通激光技术有限公司 | Double impulse width output laser |
| US20120044960A1 (en) * | 2010-08-17 | 2012-02-23 | United States Of America, As Represented By The Secretary Of The Army | Uv illumination for mitigation of cold temperature pyroelectric effects in lithium niobate |
| CN102723659A (en) * | 2012-05-02 | 2012-10-10 | 清华大学 | Method for generation of long-span repetition frequency jumping Q-switched laser pulses |
| CN104242037A (en) * | 2014-10-16 | 2014-12-24 | 哈尔滨工业大学 | Method and device for obtaining pulse string laser through itracavity modulation |
| CN205335617U (en) * | 2016-01-19 | 2016-06-22 | 北京镭宝光电技术有限公司 | Square wave pumping transfers Q to produce laser device of adjustable series impulse many times |
-
2016
- 2016-01-19 CN CN201610035412.8A patent/CN105514791B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075571Y (en) * | 2007-08-01 | 2008-06-18 | 上海奥通激光技术有限公司 | Double impulse width output laser |
| US20120044960A1 (en) * | 2010-08-17 | 2012-02-23 | United States Of America, As Represented By The Secretary Of The Army | Uv illumination for mitigation of cold temperature pyroelectric effects in lithium niobate |
| CN102723659A (en) * | 2012-05-02 | 2012-10-10 | 清华大学 | Method for generation of long-span repetition frequency jumping Q-switched laser pulses |
| CN104242037A (en) * | 2014-10-16 | 2014-12-24 | 哈尔滨工业大学 | Method and device for obtaining pulse string laser through itracavity modulation |
| CN205335617U (en) * | 2016-01-19 | 2016-06-22 | 北京镭宝光电技术有限公司 | Square wave pumping transfers Q to produce laser device of adjustable series impulse many times |
Non-Patent Citations (1)
| Title |
|---|
| 周炳琨 等: "《激光原理》", 30 April 1995, 国防工业出版社 * |
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| CN108963746A (en) * | 2017-05-24 | 2018-12-07 | 中国科学院理化技术研究所 | The application method of laser, the laser of adjustable pulse width and its application method |
| CN108963746B (en) * | 2017-05-24 | 2020-06-26 | 中国科学院理化技术研究所 | Laser using method, pulse width adjustable laser and using method thereof |
| CN110932074A (en) * | 2019-05-09 | 2020-03-27 | 长春理工大学 | Dual-wavelength laser cross frequency hopping and frequency modulation Q output laser and laser output method |
| CN111029893A (en) * | 2019-05-09 | 2020-04-17 | 长春理工大学 | Dual-wavelength alternate Q-switching single longitudinal mode output group pulse laser and laser output method |
| CN110165539A (en) * | 2019-05-24 | 2019-08-23 | 长春理工大学 | The adjustable output method in subpulse group interval and laser are realized in multi-step pumping |
| CN110247288A (en) * | 2019-07-05 | 2019-09-17 | 电子科技大学 | Room temperature semiconductor maser and its application |
| CN110247288B (en) * | 2019-07-05 | 2024-02-13 | 电子科技大学 | Normal temperature semiconductor pulse and application thereof |
| WO2021212710A1 (en) * | 2020-04-24 | 2021-10-28 | 中国科学院长春光学精密机械与物理研究所 | Device and method for measuring upper energy level lifetime of co2 laser amplifier |
| CN113078544A (en) * | 2021-03-26 | 2021-07-06 | 长春理工大学 | Laser and method for realizing pulse group laser output based on cavity emptying group |
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