CN102723661A - Electro-optic Q-switching and acousto-optic Q-switching pulse laser capable of quickly converting Q-switching modes - Google Patents
Electro-optic Q-switching and acousto-optic Q-switching pulse laser capable of quickly converting Q-switching modes Download PDFInfo
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- CN102723661A CN102723661A CN2012101354860A CN201210135486A CN102723661A CN 102723661 A CN102723661 A CN 102723661A CN 2012101354860 A CN2012101354860 A CN 2012101354860A CN 201210135486 A CN201210135486 A CN 201210135486A CN 102723661 A CN102723661 A CN 102723661A
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Abstract
The invention belongs to the technical field of lasers and relates to an electro-optic Q-switching and acousto-optic Q-switching pulse laser capable of quickly converting Q-switching modes. The laser comprises an electro-optic Q-switching structure which is used for realizing electro-optic Q-switching and an acousto-optic Q-switching structure which is used for realizing acousto-optic Q-switching, and the laser can realize conversion of working modes of the electro-optic Q-switching structure and the acousto-optic Q-switching structure. Electro-optic Q-switching and acousto-optic Q-switching modes can be quickly converted, laser pulse which is high in single-pulse energy, high in peak power and low in repetition frequency and laser pulse which is low in single-pulse energy, low in peak power and high in repetition frequency can be included in the same output pulse sequence of the Q-switching pulse laser, and equipment is simplified.
Description
Technical field
The invention belongs to the laser technique field, particularly a kind of electric light, the two Q that transfer of acousto-optic, and transfer the Q mode Q-switched pulse laser of shear fast.
Background technology
Q-switched pulse laser is laser to be exported energy be compressed in the extremely narrow laser pulse of time width and launch; Its operation principle is: when Q switching was closed, laserresonator was in the low reactance-resistance ratio state, and cavity loss is big; The lasing fluorescence threshold value is high, and the energy of pumping radiation is stored in the laser amplification medium.
Electric-optically Q-switched and acousto-optic Q modulation are that commonly used two kinds of present laser technology field are transferred the Q modes, and electric-optically Q-switched is to utilize the electro optic effect of some crystal to make corresponding electric-optically Q-switched switching device to realize transferring the Q function, and electric-optically Q-switched have switching time short (about 10
-9S), efficient high, transfer that Q can accurately control constantly, output pulse width narrow (10～20ns), the high advantages such as (more than tens MW) of peak power; But modulation voltage high (several kilovolts); Be difficult for realizing the laser pulse output of high repetition frequency; Therefore, electro-optical Q-switching laser is generally operational in low-repetition-frequency state (below the 100Hz); Acousto-optic Q modulation is when utilizing ultrasonic wave in acousto-optic medium, to transmit; The refractive index that forms in the acousto-optic medium produces the periodic characteristics that distribute and makes the Q-switch device; Ultrasonic wave is at the acousto-optic medium internal communication, and the medium refraction index cyclic variation that causes is equivalent to " phase grating " for incident light wave, and light produces Bragg diffraction during through this device; The direction of propagation that BEAM SQUINT is original, thus play the effect of transferring Q.By the transit time decision of sound wave through light beam, be example with the vitreous silica opening time of acousto-optic Q modulation switch mainly, and sound wave is 200ns through the time of the material require of 1mm length; This time is oversize concerning some high-gain laser; Therefore, the acousto-optic Q modulation switch generally is applied to the lower continuous wave laser that gains, in addition; Since the driving voltage that acoustooptic Q-switching needs very low (＜200V); So realize easily continuous wave laser is transferred Q, to obtain the laser pulse output of high repetition frequency, general repetition rate can reach 1～20kHz.Because the acousto-optic Q modulation switch is relatively poor to the switching capability of high-energy laser, so generally be applicable to the low gain Q-switched laser.
Existing Q-switched pulse laser or adopt electric-optically Q-switched mode; Export the laser pulse of big single pulse energy, high-peak power, low-repetition-frequency; Adopt the acousto-optic Q modulation mode; Export the laser pulse of little single pulse energy, low peak power, high repetition frequency,, need the laser pulse of high repetition frequency again if both needed the laser pulse of low-repetition-frequency in the practical application; Then will be equipped with two with the laser of people having the same aspiration and interest Q mode work not, and two lasers to make its collaborative work through the control circuit of complicacy.
Summary of the invention
The technical problem that (one) will solve
The technical problem that the present invention will solve is: how to overcome traditional Q-switched pulse laser can not both comprise big single pulse energy, high-peak power, low-repetition-frequency in same laser pulse output sequence laser pulse; The shortcoming that comprises the laser pulse of little single pulse energy, low peak power, high repetition frequency again proposes a kind of two Q-switched pulse lasers of electric light, acousto-optic of transferring the quick shear of Q mode.
(2) technical scheme
For solving the problems of the technologies described above; The present invention proposes the two Q-switched pulse lasers of electric light, acousto-optic of the quick shear of a kind of Q of accent mode; Said laser comprises and is used to realize electric-optically Q-switched electric-optically Q-switched structure and the acousto-optic Q modulation structure that is used to realize acousto-optic Q modulation, and said laser can be realized the conversion of working method between said electric-optically Q-switched structure and the acousto-optic Q modulation structure.
Preferably; Said electric-optically Q-switched structure comprises speculum, electric-optically Q-switched crystal and
wave plate of placing successively; Said acousto-optic Q modulation structure comprises acousto-optic Q modulation crystal and speculum, and the conversion of working method is realized by polarizer and electrooptic crystal between said electric-optically Q-switched structure and the acousto-optic Q modulation structure.
Preferably; Angle between
optical axis direction of wave plate and the printing opacity direction of polarizer is 45 °; The induction optical axis of electric-optically Q-switched crystal overlaps with the fast axle or the slow axis of
wave plate, and the angle of the induction optical axis of said electrooptic crystal and the optical direction of polarizer is 45 °.
Preferably; The logical light face of electric-optically Q-switched crystal and
wave plate all is coated with anti-reflection film, and the reflecting surface of the speculum in the said electric-optically Q-switched structure is coated with high reflection film.
Preferably, the speculum in the said electric-optically Q-switched structure is replaced with logical light face is coated with anti-reflection film, p light and s light produced phasic difference when fully reflecting surface was coated with and can prevents total reflection the position prism of corner cube of film mutually.
Preferably, the logical light face of said acousto-optic Q modulation crystal is coated with anti-reflection film, and the reflecting surface of said speculum is coated with high reflection film.
Preferably, the speculum in the said acousto-optic Q modulation structure is replaced with logical light face is coated with anti-reflection film, p light and s light produced phasic difference when fully reflecting surface was coated with and can prevents total reflection the position prism of corner cube of film mutually.
Preferably, the logical light face of said polarizer and electrooptic crystal all is coated with anti-reflection film.
Preferably, said polarizer is replaced with the ahrens prism that logical light end face is coated with anti-reflection film.
Preferably, said laser also comprises the pumping gaining structure, and said pumping gaining structure comprises two dichroscopes and laser medium, and two dichroscopes are arranged at the two ends of laser medium respectively.
(3) beneficial effect
The present invention adopts the mode of electric light, the two Q of accent of acousto-optic; Electric light, the shear fast of acousto-optic Q modulation mode; Realized in the same output pulse sequence of Q-switched laser; The laser pulse that had both comprised big single pulse energy, high-peak power, narrow pulse width, low-repetition-frequency comprises the laser pulse of little single pulse energy, low peak power, broad pulse width, high repetition frequency again, has simplified equipment.
Description of drawings
Fig. 1 is the laser structure sketch map of an embodiment of the present invention;
Fig. 2 is a kind of execution mode sketch map of the laser of Fig. 1, adopts the end pumping mode to work;
Fig. 3 is the another kind of execution mode sketch map of the laser of Fig. 1, adopts the profile pump mode to work;
Fig. 4 is the laser structure sketch map of another embodiment of the present invention, and the laser medium that this structure is used is the anisotropic gain medium;
Fig. 5 is the laser structure sketch map of another embodiment of the present invention, has wherein replaced polarizer with ahrens prism;
Fig. 6 is the laser structure sketch map of another embodiment of the present invention, and this structure adopts the refrative cavity structure.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
The present invention proposes the two Q-switched pulse lasers of electric light, acousto-optic of the quick shear of a kind of Q of accent mode; Both comprise electric-optically Q-switched structure in this laser structure and also comprised the acousto-optic Q modulation structure; Realize the quick conversion between electric-optically Q-switched mode and the acousto-optic Q modulation mode through electrooptic crystal and polarizer; Make in the same output pulse sequence of same laser; Both comprised the laser pulse that repetition rate is low, single pulse energy is big, pulse duration is narrow, pulse peak power is high, comprised the laser pulse that repetition rate is high, single pulse energy is low, pulse duration is wide and pulse peak power is less that produces by acousto-optic Q modulation again by electric-optically Q-switched generation.
Fig. 1 has provided laser structure sketch map of the present invention; Whole accent Q part had both comprised that electric-optically Q-switched structure also comprised the acousto-optic Q modulation structure; Light from right to left; Through behind the electrooptic crystal 5, remain the linearly polarized light that the polarization direction is parallel to paper through polarizer 8 (suppose the polarisation of light direction in paper, electrooptic crystal 5 is making alive not); The printing opacity direction of polarizer 4 is parallel to paper; Therefore light can see through polarizer 4 smoothly, and
optical axis of wave plate 3 and the angle of paper are 45 °, and light is through behind
wave plate 3; Become circularly polarized light; When electric-optically Q-switched crystal 2 not during making alive, it does not exert an influence to polarization state of light, and circularly polarized light is after speculum 1 reflection; The direction of rotation and the incident light of circularly polarized light are opposite; After passing through
wave plate 3 again, become linearly polarized light, but the polarization direction is vertical with paper; Like this can not be but upwards reflect resonant cavity by it through polarizer 4, so just can not form laser generation.If electric-optically Q-switched crystal 2 adds
voltage; Then be equivalent to
wave plate; Fast axle of
wave plate that induction generates behind the electric-optically Q-switched crystal 2 making alive and the fast axle of
wave plate 3 overlap; Then the two common effect is equivalent to
wave plate; And the angle of optical axis and paper is 45 °; The linearly polarized light that is parallel to paper when the polarization direction from polarizer 4 outgoing is through
wave plate 3 with after adding the electric-optically Q-switched crystal 2 of
voltage; The plane of polarization half-twist; The direction of vibration of light vector is vertical with paper; After plane mirror 1 reflection; The polarization direction is constant; Still perpendicular to paper; Behind the electric-optically Q-switched crystal 2 and
wave plate 3 that add
voltage; The direction of vibration of light vector is half-twist once more; The polarisation of light direction is parallel with paper; Can pass through polarizer 4 smoothly, so just form laser generation; After if electric-optically Q-switched crystal 2 adds
voltage; The fast axle of
wave plate that induction generates overlaps with the slow axis of
wave plate 3; Then the two is cancelled out each other to the influence of polarised light; Electric-optically Q-switched crystal 2 behind the making alive combines polarised light is not exerted an influence with
wave plate 3; So the linearly polarized light that is parallel to paper by the polarization direction of polarizer 4 outgoing is through behind
wave plate 3 and the electric-optically Q-switched crystal 2; Still the linearly polarized light that is parallel to paper for the polarization direction; Through plane mirror 1 reflection; Once more through behind electric-optically Q-switched crystal 2 and
wave plate 3; The polarization direction still remains unchanged; The direction of vibration of light vector still is in the paper; Consistent with the printing opacity direction of polarizer 4; Therefore; Reflection luminous energy so also forms laser generation smoothly through prism.
It is thus clear that under electric-optically Q-switched operating state, when electric-optically Q-switched crystal 2 not during making alive, resonant cavity can not form laser generation, is in the low reactance-resistance ratio state, cavity loss is very big; When electric-optically Q-switched crystal 2 adds
voltage; The fast axle no matter the electrooptic crystal induction generates is parallel or vertical with the fast axle of
wave plate 3; Light can both form vibration in resonant cavity; Resonant cavity is in high Q state of value, and cavity loss is very little.
When electrooptic crystal 5 adds
voltage; The angle of induction optical axis and paper is 45 °; Linearly polarized light transmission left, that plane of polarization is parallel to paper is through after adding the electrooptic crystal 5 of
voltage; The polarization direction half-twist; The direction of vibration of light vector is perpendicular to paper; Pass through the acousto-optic Q modulation crystal 6 through polarizer 4 back reflections; Reflect through plane mirror 7 again, through the acousto-optic Q modulation crystal 6, and through after polarizer 4 reflections; Again through adding the electrooptic crystal 5 of
voltage; Polarisation of light changes 90 ° towards circling round, and the direction of vibration of light vector is parallel with paper, and is consistent with the polarisation of light direction of original incident electrooptic crystal 5 left.On the acousto-optic Q modulation crystal 6, do not have ultrasonic wave to do the time spent, deviation does not take place in light beam, so can form laser generation in the resonant cavity, and resonant cavity is in low-loss, high Q state of value; In the acousto-optic Q modulation crystal 6, have ultrasonic wave to do the time spent, beam emissions Bragg diffraction, diffraction light depart from original direction of beam propagation, leak out outside the chamber, so resonant cavity is in high loss, and the low reactance-resistance ratio state.
Can know by above argumentation; Though in transferring the Q module, have electric-optically Q-switched structure and acousto-optic Q modulation structure simultaneously; But the two is not worked simultaneously; Conversion between the not influence each other, electric-optically Q-switched and acousto-optic Q modulation working method is accomplished by polarizer 4 and electrooptic crystal 5, because the switching speed of electrooptical switching fast (can reach the ns magnitude); So can change fast between electric-optically Q-switched and the acousto-optic Q modulation working method; Thereby be implemented in the same output laser pulse sequence of laser, both comprised low repetition electric-optically Q-switched laser pulse, comprise the high repetition acousto-optic Q modulation laser pulse of the little single pulse energy that produces by acousto-optic Q modulation, broad pulse width, low peak power again by the big single pulse energy of electric-optically Q-switched generation, narrow pulse width, high-peak power.Wherein, the position of electric-optically Q-switched structure and acousto-optic Q modulation structure can exchange.
The pumping gaining structure comprises that dichroscope 9, gain medium 10,11 are the end pumping radiation, and 12 is the profile pump radiation; The working method of pumping source can have following 5 kinds: 1. electric-optically Q-switched state adopts the profile pump mode down, adopts the end pumping mode under the acousto-optic Q modulation operating state, like this; The single pulse energy of the low Repetition Frequency Laser pulse that from laser, obtains is bigger; But beam quality is relatively poor relatively, and the single pulse energy of high Repetition Frequency Laser pulse is lower, but beam quality is better.2. adopt the end pumping mode under the electric-optically Q-switched operating state; Adopt the profile pump mode under the acousto-optic Q modulation operating state, the single pulse energy of the low Repetition Frequency Laser pulse that from laser, obtains like this is lower, but beam quality is better; And the single pulse energy of high Repetition Frequency Laser pulse is higher; But beam quality is relatively poor, and the profile pump radiation when under this operating state, it shall yet further be noted that corresponding acousto-optic Q modulation can not be too strong; Otherwise can cause that acoustooptic Q-switching closes phenomenon incessantly, this will directly cause high Repetition Frequency Laser pulse not form.3. no matter under the electric-optically Q-switched working method or under the acousto-optic Q modulation working method; All adopt profile pump mode and end pumping mode simultaneously; Adopt this method to help improving the single pulse energy of output laser; Certainly, under the electric-optically Q-switched state and under the acousto-optic Q modulation operating state, the pro rate of each self-corresponding end pumping and profile pump can be confirmed according to actual conditions.4. electric-optically Q-switched working method and acousto-optic Q modulation working method all adopt the pump mode of end pumping; As shown in Figure 2; Under this working method; Compare with pumping working method Φ, though the single pulse energy of low Repetition Frequency Laser pulse is lower, the beam quality of low Repetition Frequency Laser pulse and high Repetition Frequency Laser pulse is all relatively good.5. electric-optically Q-switched working method and acousto-optic Q modulation working method all adopt the method for profile pump; As shown in Figure 3, under this working method, Φ compares with the pumping working method; Though the beam quality of high Repetition Frequency Laser pulse decreases, single pulse energy can increase.Under this working method, do not need dichroscope.
13 is the outgoing mirror of laser, 14 laser for output, and 8 is another polarizer, polarizer 8 can be replaced by the ahrens prism 16 that two ends are coated with anti-reflection film.If laser medium is the anisotropic gain medium of polarised light output, like Nd:YVO
4, Nd:YLF etc., and have only the zlasing mode output of a linear polarization, then polarizer 8 can remove, and is as shown in Figure 4.Polarizer 4 is replaceable to be ahrens prism 15, as shown in Figure 5.Resonant cavity can also use the structure of refrative cavity, and is as shown in Figure 6.
Can find out by above embodiment; The present invention adopts the mode of electric light, the two Q of accent of acousto-optic; Electric light, the shear fast of acousto-optic Q modulation mode have realized in the same output pulse sequence of Q-switched laser, both having comprised the laser pulse of big single pulse energy, high-peak power, narrow pulse width, low-repetition-frequency; Comprise the laser pulse of little single pulse energy, low peak power, broad pulse width, high repetition frequency again, simplified equipment.
The above only is an execution mode of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and modification, these improve and modification also should be regarded as protection scope of the present invention.
Claims (10)
1. an electric light of transferring the quick shear of Q mode, the two Q-switched pulse lasers of acousto-optic; It is characterized in that; Said laser comprises and is used to realize electric-optically Q-switched electric-optically Q-switched structure and the acousto-optic Q modulation structure that is used to realize acousto-optic Q modulation, and said laser can be realized the conversion of working method between said electric-optically Q-switched structure and the acousto-optic Q modulation structure.
2. laser as claimed in claim 1; It is characterized in that; Said electric-optically Q-switched structure comprises speculum (1), electric-optically Q-switched crystal (2) and
wave plate (3) of placing successively; Said acousto-optic Q modulation structure comprises acousto-optic Q modulation crystal (6) and speculum (7), and the conversion of working method is realized by polarizer (4) and electrooptic crystal (5) between said electric-optically Q-switched structure and the acousto-optic Q modulation structure.
3. laser as claimed in claim 2; It is characterized in that; Angle between the optical axis direction of
wave plate (3) and the printing opacity direction of polarizer (4) is 45 °; The induction optical axis of electric-optically Q-switched crystal (2) overlaps with the fast axle or the slow axis of
wave plate (3), and the angle of the optical direction of the induction optical axis of said electrooptic crystal (5) and polarizer (4) is 45 °.
4. laser as claimed in claim 2; It is characterized in that; The logical light face of electric-optically Q-switched crystal (2) and
wave plate (3) all is coated with anti-reflection film, and the reflecting surface of the speculum (1) in the said electric-optically Q-switched structure is coated with high reflection film.
5. laser as claimed in claim 4 is characterized in that, the speculum (1) in the said electric-optically Q-switched structure is replaced with logical light face is coated with anti-reflection film, p light and s light produced phasic difference when fully reflecting surface was coated with and can prevents total reflection the position prism of corner cube of film mutually.
6. laser as claimed in claim 2 is characterized in that, the logical light face of said acousto-optic Q modulation crystal (6) is coated with anti-reflection film, and the reflecting surface of said speculum (7) is coated with high reflection film.
7. laser as claimed in claim 6 is characterized in that, the speculum (7) in the said acousto-optic Q modulation structure is replaced with logical light face is coated with anti-reflection film, p light and s light produced phasic difference when fully reflecting surface was coated with and can prevents total reflection the position prism of corner cube of film mutually.
8. laser as claimed in claim 2 is characterized in that, the logical light face of said polarizer (4) and electrooptic crystal (5) all is coated with anti-reflection film.
9. laser as claimed in claim 2 is characterized in that, said polarizer (4) is replaced with the ahrens prism that logical light end face is coated with anti-reflection film.
10. like each described laser in the claim 1～9; It is characterized in that; Said laser also comprises the pumping gaining structure, and said pumping gaining structure comprises two dichroscopes (9) and laser medium (10), and two dichroscopes (9) are arranged at the two ends of laser medium (10) respectively.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025783A (en) * | 2016-06-06 | 2016-10-12 | 中国工程物理研究院应用电子学研究所 | Q-switched pulse laser for quickly switching polarization states |
| CN108346971A (en) * | 2018-04-08 | 2018-07-31 | 北京华宇德信光电技术有限公司 | A kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output |
| CN110635349A (en) * | 2019-09-27 | 2019-12-31 | 中国科学院长春光学精密机械与物理研究所 | Ultra-high repetition frequency narrow pulse width CO2Laser device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6292505B1 (en) * | 1998-10-12 | 2001-09-18 | Mitsubishi Denki Kabushiki Kaisha | Dual resonator laser apparatus with optical modulation |
| CN201001002Y (en) * | 2006-08-11 | 2008-01-02 | 北京国科世纪激光技术有限公司 | Laser capable of adjusting pulsewidth |
| CN101335424A (en) * | 2008-07-11 | 2008-12-31 | 华中科技大学 | Polarization coupled parallel Q modulating solid laser |
| CN101527423B (en) * | 2009-04-20 | 2011-01-26 | 清华大学 | High-mean-power high-repetition-rate solid laser |
-
2012
- 2012-05-02 CN CN201210135486.0A patent/CN102723661B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6292505B1 (en) * | 1998-10-12 | 2001-09-18 | Mitsubishi Denki Kabushiki Kaisha | Dual resonator laser apparatus with optical modulation |
| CN201001002Y (en) * | 2006-08-11 | 2008-01-02 | 北京国科世纪激光技术有限公司 | Laser capable of adjusting pulsewidth |
| CN101335424A (en) * | 2008-07-11 | 2008-12-31 | 华中科技大学 | Polarization coupled parallel Q modulating solid laser |
| CN101527423B (en) * | 2009-04-20 | 2011-01-26 | 清华大学 | High-mean-power high-repetition-rate solid laser |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025783A (en) * | 2016-06-06 | 2016-10-12 | 中国工程物理研究院应用电子学研究所 | Q-switched pulse laser for quickly switching polarization states |
| CN108346971A (en) * | 2018-04-08 | 2018-07-31 | 北京华宇德信光电技术有限公司 | A kind of acousto-optic Q modulation frequency double laser using electrooptical switching control laser output |
| CN110635349A (en) * | 2019-09-27 | 2019-12-31 | 中国科学院长春光学精密机械与物理研究所 | Ultra-high repetition frequency narrow pulse width CO2Laser device |
| CN110635349B (en) * | 2019-09-27 | 2021-01-05 | 中国科学院长春光学精密机械与物理研究所 | Ultra-high repetition frequency narrow pulse width CO2Laser device |
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