CN103311789A - Thin laser medium laser device - Google Patents
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- CN103311789A CN103311789A CN2013102535904A CN201310253590A CN103311789A CN 103311789 A CN103311789 A CN 103311789A CN 2013102535904 A CN2013102535904 A CN 2013102535904A CN 201310253590 A CN201310253590 A CN 201310253590A CN 103311789 A CN103311789 A CN 103311789A
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Abstract
The invention discloses a thin laser medium laser device. The thin laser medium laser device comprises a first reflecting mirror and a second reflecting mirror. The first reflecting mirror is plated on a light passing face of a thin laser medium, has high reflectivity to pumping light and laser produced by the laser device, is used for controlling pumping light propagation and serves as a back reflecting mirror of a laser resonant cavity. The second reflecting mirror is a concave spherical surface reflecting mirror, one face of a substrate of the second reflecting mirror facing the first reflecting mirror is a concave spherical surface. A pumping light control cavity formed by the first reflecting mirror and the second reflecting mirror enables the pumping light to be propagated back and forth between the two reflecting mirrors along a Z-shaped stereo annular light path for multiple times, and the pumping light passes through multiple regions located on the thin laser medium and distributed in an axial symmetry mode. The thin laser medium laser device adopts a pumping light beam controlled consisting of the two reflecting mirrors, enables pumping light beams to be propagated between the two reflecting mirrors along the non-planar stereo annular light path and to pass the laser medium for multiple times, performs multiple-pass pumping of the pumping light beams and improves the pumping light utilizing rate.
Description
Technical field
The present invention relates to a kind of laser technology field, relate in particular to a kind of thin-disc laser dielectric laser device.
Background technology
Laser diode (Laser Diode is called for short LD) light-pumped solid state laser, particularly high average power solid laser device have very widely in fields such as industry, scientific research and military affairs to be used.Because the thermal conductivity of solid laser medium is lower usually, and the used heat that optical pumping produces in solid laser medium can cause that medium temperature raises, thereby the refractive index that causes laser medium is inhomogeneous, mechanical stress increases and effect such as depolarization, therefore limit the further raising of this type of laser output power and beam quality, even caused the fracture of laser medium.This is very unfavorable to the application of promoting this type of laser.
LD pumping thin-disc laser dielectric laser device can make hot-fluid be transmitted to heat sink along the laser medium thickness direction approx, the one dimension temperature field distribution that formation changes along thickness direction, thereby can reduce thermal lensing effect and the thermic stress birfringence of medium greatly, improve power output and the beam quality of laser.One of main difficulty that improves LD pumping thin-disc laser dielectric laser device power output is: because the thickness of thin-disc laser medium is little and its absorption coefficient to pump light is big inadequately, cause the reduction to the pump light utilance, also reduced the power output of laser simultaneously.
The solid state laser with the LD pumping of existing multiple structure adopts the whole bag of tricks to improve the utilance of pump light.
Fig. 1 is the basic structure schematic diagram of a kind of LD round trip light-pumped solid state laser of the prior art.As shown in Figure 1, the pumping light beams 2 that is sent by LD1 incides on the thin-disc laser medium 3 it is carried out pumping after through focusing system 9 and dichroic mirror 7; Thin-disc laser medium 3 is fixed on heat sink 4, and heat sink 4 are used for thin-disc laser medium 3 is cooled off and temperature control; Be coated with the speculum 5 that pumping light and the laser that produces with LD round trip light-pumped solid state laser are thus carried out high reflection simultaneously in thin-disc laser medium 3 rear surfaces; Speculum 5, outgoing mirror 6 and the dichroic mirror 7 common laserresonators of forming; The laser that produces with LD round trip light-pumped solid state laser sees through outgoing mirror 6 outputs thus.In this process, pumping light beams 2 twice by laser medium, realized the round trip pumping.
Fig. 2 a is the basic structure schematic diagram of a kind of LD16 journey light-pumped solid state laser of the prior art.Shown in Fig. 2 a, the pumping light beams 2 that the LD1 that is exported by the optical fiber coupling sends is through focusing systems 9 collimations, incide shown in regional 91(Fig. 2 b of parabolic pumping light reflection mirror 10) go up the back, be reflected and focus in the thin-disc laser medium 3 on the focal plane that is placed on parabolic pumping light reflection mirror 10, be coated on again on thin-disc laser medium 3 rear surfaces, to pumping light 2 with thus on the zone 92 of the parabolic pumping light reflection mirror 10 of speculum 5 reflected backs of the laser beam 8 high reflection simultaneously that produces of LD16 journey light-pumped solid state laser.In said process, pumping light has carried out two journey pumping to laser medium.After zone 92 reflections of polished object face pumping light reflection mirror 10, pumping light 2 becomes directional light and incides on 90 ° of prisms 911, on the zone 93 of its sidesway, the parabolic pumping light reflection mirror 10 of reflected back, and is focused onto again on the thin-disc laser medium 3.In this device, four 90 ° of prisms that comprise prism 911 are arranged, wherein 3 prisms only do not make its sidesway to 10, the four prisms of pumping light reflected back parabolic reflector by former direction reflection pumping light 2 when making pumping light sidesway.These four prisms and parabolic pumping light reflection mirror 10 make pumping light 2 by the propagated shown in Fig. 2 b jointly, have realized 16 journey pumping to thin-disc laser medium 3 simultaneously.The laser beam 8 that produces of LD16 journey light-pumped solid state laser passes the through hole 12 at mirror substrate 11 centers of parabolic pumping light reflection mirror 10 thus, and in the laserresonator of being formed by speculum 5 and outgoing mirror 6, come and go and propagate, and by outgoing mirror 6 outputs.
Though it is existing multiple with LD multipass pumping thin-disc laser dielectric laser device now, can improve its output beam quality and power output, the pump light utilance is not high enough, pump light distributes inadequately evenly at laser medium, shortcomings such as output beam quality has much room for improvement, laser structure complexity, cost height but they exist respectively.
Summary of the invention
One of technical problem to be solved by this invention provides and a kind ofly can improve uniformity and the output beam quality thin-disc laser dielectric laser device that pump light utilance, pump light distribute at laser medium.
In order to solve the problems of the technologies described above, the invention provides a kind of thin-disc laser dielectric laser device, comprise: first speculum, it is coated on the logical light face of thin-disc laser medium, and be high reflection to the laser that pumping light and laser produce, be used for the propagation of the described pumping light of control and as the back mirror of laserresonator; Second speculum, it is concave spherical mirror, its substrate is concave spherical surface towards the one side of described first speculum, wherein, the pumping photocontrol chamber that described first speculum and described second speculum are formed makes pumping light three-dimensional circular light path along " Z " font between described first speculum and described second speculum repeatedly come and go propagation, and described pumping light is repeatedly by a plurality of zones on the described thin-disc laser medium, that become axial symmetry to distribute.
In one embodiment, described second speculum comprises two zones that area is different at least, wherein area less zone is for only high transmission of pumping, make described pumping light enter in the described pumping photocontrol chamber by this zone, the bigger zone of another area is to only high reflection of described pumping, makes that entering to pumping light in the described pumping photocontrol chamber comes and goes between this zone and described first speculum and to propagate.
In one embodiment, described second speculum, its substrate dorsad the one side of described first speculum be coated with the pumping anti-reflection film of high transmission only.
In one embodiment, one zone, center of described second speculum has through hole, and the laser that produces come and go to be propagated in described laserresonator by described through hole, different two zones of described area not with this region overlapping.
In one embodiment, one zone, center of described second speculum is coated with the anti-reflection film that the laser that produces is had high transmission, the laser that produces come and go to be propagated in described laserresonator by this zone, different two zones of described area not with this region overlapping.
In one embodiment, the linear pattern resonant cavity that described laserresonator is made up of described first speculum and an outgoing mirror, the laser that produces is by described outgoing mirror coupling output.
In one embodiment, described laserresonator is by described first speculum, an outgoing mirror and two figure of eight resonant cavitys that speculum is formed, and the laser that produces is by described outgoing mirror coupling output.
In one embodiment, comprise a polarizer and a Faraday rotator in the light path of described figure of eight resonant cavity at least, the two acting in conjunction makes that the laser that produces can only one way propagation.
In one embodiment, comprise an etalon in the light path of described figure of eight resonant cavity at least, its spectral width to the fundamental frequency light that produces is pressed narrow.
In one embodiment, comprise a nonlinear optical crystal in the light path of described figure of eight resonant cavity at least, it carries out frequency inverted to the fundamental frequency light that produces.
Compared with prior art, one or more embodiment of the present invention can have following advantage:
The thin-disc laser dielectric laser device that the present invention proposes, by adopting the pumping light beams controller of only being formed by two-face mirror, pumping light beams is propagated along the three-dimensional light path of going in ring of on-plane surface between this two-face mirror, repeatedly by laser medium, it is carried out the utilance that the multipass pumping has improved pumping light.
Utilize the two-face mirror control pumping light beams of this laser by the position of thin-disc laser medium, form different but overlapping, a plurality of pumping areas that are symmetrically distributed mutually in position at the thin-disc laser medium, to form the large tracts of land pumping area that pumping is even, pump intensity is symmetrical at the thin-disc laser medium, thereby can be under the situation of not damaging the thin-disc laser medium, adopt more high-power pumping light that the thin-disc laser medium is carried out even pumping, power output is higher to obtain, the better laser output of beam quality.
The thin-disc laser dielectric laser device that the present invention proposes simple in structure simplified laser structure and manufacturing process, and be easy to use, improved stability, reduced cost, is expected to be widely used.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in specification, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used for jointly explaining the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the basic structure schematic diagram of a kind of LD round trip light-pumped solid state laser of the prior art;
Fig. 2 a, Fig. 2 b are respectively the basic structure schematic diagram of a kind of LD16 journey light-pumped solid state laser of the prior art and the propagation path of light schematic diagram of this laser;
Fig. 3 a, Fig. 3 b are respectively thin-disc laser dielectric laser device basic structure front view and the left views according to first embodiment of the invention;
Fig. 4 a, Fig. 4 b are respectively thin-disc laser dielectric laser device basic structure front view and the left views according to second embodiment of the invention;
Fig. 5 a, Fig. 5 b are respectively thin-disc laser dielectric laser device basic structure front view and the left views according to third embodiment of the invention;
Fig. 6 a, Fig. 6 b are respectively thin-disc laser dielectric laser device basic structure front view and the left views according to fourth embodiment of the invention;
Fig. 7 a, Fig. 7 b are respectively thin-disc laser dielectric laser device basic structure front view and the left views according to fifth embodiment of the invention.
The drawing reference numeral explanation:
Semiconductor laser (LD): 1
Pumping light beams: 2,21,22,23
Thin-disc laser medium: 3
Heat sink: 4
Outgoing mirror: 6,61
Dichroic mirror: 7
Laser beam: 8,81
Focusing system: 9
Parabolic reflector: 10
Mirror substrate: 11
Through hole: 12
90 ° of prisms: 911
Pumping light reflection mirror: 101,102
Polarizer: 31
Faraday rotator: 32
Etalon (frequency-selector): 33
Frequency multiplier: 34
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, how the application technology means solve technical problem to the present invention whereby, and the implementation procedure of reaching technique effect can fully understand and implements according to this.Need to prove that only otherwise constitute conflict, each embodiment among the present invention and each feature among each embodiment can mutually combine, formed technical scheme is all within protection scope of the present invention.
In this application, the term that relates to " high reflection " and " high transmission ", high reflection and high transmission are terms commonly used in the laser field, for different lasers, comprise different laser mediums, different resonant cavity types, different draw powers, different working methods (output or pulse output etc. continuously) etc., their size has very wide scope.In this application, preferred high reflection digital reflex rate is greater than 50%, and high transmission refers to that transmissivity is greater than 50%.
First embodiment
Fig. 3 a, Fig. 3 b are respectively thin-disc laser dielectric laser device basic structure front view and the left views according to first embodiment of the invention, in the accompanying drawings, " zero " is the pip of pumping light on concave mirror, " " is the pip of pumping light on level crossing, describes the concrete composition structure of this laser below in detail.
Shown in Fig. 3 a, this laser comprises focusing system 9, outgoing mirror 6, pumping light reflection mirror 101, thin-disc laser medium 3, heat sink 4 and a lip-deep speculum 5 being plated in thin-disc laser medium 3, and this surface is thin-disc laser medium 3 and heat sink 4 surfaces that contact.
By adopting two-face mirror (the pumping light reflection mirror 101 among Fig. 3 a and speculum 5) to form pumping photocontrol chamber, in order to control the propagation of the pumping light beams that LD sends.Make pumping light beams between this two-face mirror, repeatedly come and go propagation along the belt light path of the solid of " Z " font.Repeatedly coming and going between propagation periods, a plurality of zones that pumping light beams repeatedly distributes by the one-tenth axial symmetry that is on the thin-disc laser medium between the two-face mirror, thus realize the thin-disc laser medium is carried out the uniform pumping of multipass.
In the two-face mirror in pumping photocontrol chamber, it is directly to be coated on the level crossing that laser on the logical light face of thin-disc laser medium, that simultaneously pumping light and laser are produced all carries out high reflection that a speculum (as the speculum 5 among Fig. 3 a) is arranged, this level crossing is except the propagation of control pumping light, and this face speculum also is used as the back mirror of laser resonant cavity simultaneously.Another side speculum in the two-face mirror in pumping photocontrol chamber (as the pumping light reflection mirror 101 among Fig. 3 a) is concave spherical mirror.
The concave spherical mirror in pumping photocontrol chamber (as the pumping light reflection mirror 101 among Fig. 3 a), its substrate is concave spherical surface towards the one side of back mirror (as the speculum 5 among Fig. 3 a).Concave spherical mirror has two zones that area is different at least, one of them area less zone is to only high transmission of pumping, make the LD pumping light beams enter between the two-face mirror in pumping photocontrol chamber by this zone, the bigger zone of one of them area is to only high reflection of pumping, enters LD pumping light beams between the two-face mirror of pumping photocontrol chamber and comes and goes between the back mirror of this regional high reflection mirror and laserresonator and to propagate.Concave spherical mirror, its substrate one side of back mirror dorsad are coated with the pumping anti-reflection film of high transmission only.The center of concave spherical mirror has through hole, the laser that produces has a zone by this through hole comes and goes propagation or concave spherical mirror in laserresonator center, two surfaces at this zone internal reflector) being coated with the laser that produces is the anti-reflection film of high transmission, and the laser that produces sees through this zone and come and go propagation in laserresonator.Describe the course of work of this laser below in detail.
At first, the pumping light beams 2 that is sent by LD focuses on through focusing system 9, after seeing through pumping light reflection mirror 101 and thin-disc laser medium 3, focus on be coated on thin-disc laser medium 3 right surfaces, all be on the high speculum 5 that reflects to pumping light and laser that this laser produces.Pumping light is reflected after mirror 5 reflection, and pumping light shines on the pumping light reflection mirror 101 after seeing through thin-disc laser medium 3 again, then again by pumping light reflection mirror 101 focus on, reflection is to thin-disc laser medium 3.In above-mentioned smooth communication process, pumping light passes through the thin-disc laser medium twice, and it has been carried out the round trip pumping.After this, pumping light continues to come and go propagation along the belt light path of the solid shown in Fig. 3 a between pumping light reflection mirror 101 and speculum 5.During incidence point when pumping light is got back to it and seen through pumping light reflection mirror 101 for the first time along this light path, finished a circulation.Around here, six processes of pumping light thin-disc laser medium has carried out six journey pumping to it, in the pumping zone of three symmetrical distributions of thin-disc laser medium 3 formation, shown in Fig. 3 b.Speculum 5 and outgoing mirror 6 are formed the linear pattern laserresonator.The laser beam that produces is by the through hole (also can be the zone of having plated anti-reflection film) 12 at mirror substrate 11 centers herein, between speculum 5 and outgoing mirror 6, come and go and propagate, be subjected to simultaneously by the amplification of the thin-disc laser medium 3 of pumping, the part of the laser beam that produces is by outgoing mirror 6 coupling outputs.
Incidence point by adjusting pumping light beams 2 is to distance and incident direction, the curvature of pumping light reflection mirror 101 concave surfaces and the spacing between pumping light reflection mirror 101 and the speculum 5 of laserresonator optical axis, just can increase pumping light beams passes through the thin-disc laser medium when the belt light path of solid is propagated one time number of times, namely increase it to the pumping number of passes of thin-disc laser medium, thereby improved the utilance of pumping light, also increase simultaneously quantity and the pumping area in pumping zone on the thin-disc laser medium, thereby improved the uniformity that thin-disc laser medium pump intensity is distributed.
By from present embodiment as can be seen, the laser that the embodiment of the invention proposes is because the pumping area on the thin-disc laser medium is bigger, thereby allows to use more high-power pumping, namely can obtain higher power output.Has higher pumping light utilization efficiency owing to carrying out the more pumping of multipass to the thin-disc laser medium.Owing to can carry out more pumping and the more uniform pumping of multipass to the thin-disc laser medium, therefore when guaranteeing high pumping light utilization efficiency, can use thinner thin-disc laser medium, thus further reduce thermal lensing effect and improve output laser beam quality.Because the control of pumping light light path is only realized by two-face mirror, thereby its structure is simpler, it is easier to make, and cost of manufacture is lower.These advantages make it have bright application prospect.
Second embodiment
Fig. 4 a, Fig. 4 b are respectively thin-disc laser dielectric laser device basic structure front view and the left views according to second embodiment of the invention, and in the accompanying drawings, " zero " is the pip of pumping light on concave mirror, and " " is the pip of pumping light on level crossing.
For convenience of explanation, no longer the structure identical with previous embodiment launched in detail, and only stressed difference with previous embodiment.In Fig. 3 a and Fig. 4 a, to the same or analogous composition structure of previous embodiment, adopted identical Reference numeral.
What present embodiment was different with first embodiment is to have increased a pumping light reflection mirror 102 in the present embodiment, below the course of work of this laser of detailed description.
In the present embodiment, when returning it seeing through the incidence point of pumping light reflection mirror 101 for the first time after pumping light beams 2 that LD sends carries out the multipass pumping according to the light path among first embodiment Fig. 3 a to thin-disc laser medium 3, pumping light beams continues in Fig. 4 a the direction of light beam 21 and propagates.When running into pumping light reflection mirror 102, it is reflected, direction along the light beam 22 opposite with light beam 21 directions is returned, and warp is along propagating with the antipodal direction of the first embodiment pumping optical propagation direction, simultaneously thin-disc laser medium 3 is carried out the second multipass pumping of taking turns, make the pumping number of passes of thin-disc laser medium double.
In an embodiment of the present invention, pumping light is increased to twice to the number of passes of the multipass pumping of thin-disc laser medium, thereby can allow to use thinner laser medium, improve utilance and the uniformity of pumping light, and make the adjustment of laser simple more, work is more stable.
The 3rd embodiment
Fig. 5 a, Fig. 5 b are respectively thin-disc laser dielectric laser device basic structure front view and the left views according to third embodiment of the invention, and in the accompanying drawings, " zero " is the pip of pumping light on concave mirror, and " " is the pip of pumping light on level crossing.
For convenience of explanation, no longer the structure identical with previous embodiment launched in detail, and only stressed difference with previous embodiment.In Fig. 4 a and Fig. 5 a, to the same or analogous composition structure of previous embodiment, adopted identical Reference numeral.
Differently with second embodiment in the present embodiment be, pumping light reflection mirror 102 in the present embodiment is not that pumping light beams 21 is returned along original optical path by opposite direction, but make it along the reflection of the direction of pumping light beams 23 to thin-disc laser medium 3, shine on the needed position, for example, shine the center of thin-disc laser medium, so that the thin-disc laser medium obtains more uniform pumping.
In an embodiment of the present invention, can reflex to the relative more weak position of pumping on the thin-disc laser medium to pumping light beams 21 by the orientation that changes pumping light reflection mirror 102, and can change the spot size of pumping light 23 on the thin-disc laser medium owing to change the radius of curvature of pumping light reflection mirror 102, thereby pumping light light intensity on the homogenize thin-disc laser medium effectively, further improve the quality of Laser Output Beam.
The 4th embodiment
Fig. 6 a, Fig. 6 b are respectively basic structure front view and the left views according to the thin-disc laser dielectric laser device of fourth embodiment of the invention, and in the accompanying drawings, " zero " is the pip of pumping light on concave mirror, and " " is the pip of pumping light on level crossing.
For convenience of explanation, no longer the structure identical with previous embodiment launched in detail, and only stressed difference with previous embodiment.In Fig. 4 a and Fig. 6 a, to the same or analogous composition structure of previous embodiment, adopted identical Reference numeral.
Pumping light channel structure in the embodiment of the invention is identical with second embodiment, different with second embodiment is that the laserresonator of present embodiment is formed figure of eight resonant cavity jointly by three speculums 5 in the face of the concussion laser total reflection, speculum 51, speculum 52 and outgoing mirror 6.Be inserted with polarizer 31, Faraday rotator 32, etalon (frequency-selector) 33 in the resonant cavity light path, the effect of etalon 33 is to press narrow to the fundamental frequency light spectrum that produces.The laser beam 8 that laser produces passes the central through hole 12 of mirror substrate 11, propagates in resonant cavity, and outputs to outside the chamber through the direction of outgoing mirror 6 along light beam 8.Polarizer 31 and Faraday rotator 32 actings in conjunction can only produce along the single-frequency laser bundle 8 of the linear polarization of a direction propagation laser.Etalon 33 makes the breadth of spectrum line of the single-frequency laser bundle 8 that produces narrower.
Laser shown in the embodiment of the invention has higher pumping light utilization efficiency, draw power distributing homogeneity, can export the single-frequency laser of high-output power, high light beam quality.
The 5th embodiment
Fig. 7 a, Fig. 7 b are respectively basic structure front view and the left views according to the thin-disc laser dielectric laser device of fifth embodiment of the invention, and in the accompanying drawings, " zero " is the pip of pumping light on concave mirror, and " " is the pip of pumping light on level crossing.
For convenience of explanation, no longer the structure identical with previous embodiment launched in detail, and only stressed difference with previous embodiment.In Fig. 6 a and Fig. 7 a, to the same or analogous composition structure of previous embodiment, adopted identical Reference numeral.
Pumping light channel structure in the embodiment of the invention and laserresonator and the 4th embodiment's is basic identical, different with the 4th embodiment is, increased frequency multiplier 34 in the laserresonator of present embodiment, and adopt only high reflection of fundamental frequency that laser is produced, to frequency doubled light be the outgoing mirror 61 of high transmission replaced among the 4th embodiment to the fundamental frequency outgoing mirror 6 of part transmission only.
Laser shown in the present embodiment has higher pumping light utilization efficiency, draw power distributing homogeneity, the one-frequency or frequency-multiplying laser of output high-output power, high light beam quality.
Though invention has been described with reference to preferred embodiment, without departing from the scope of the invention, can carry out various improvement and can replace wherein parts with equivalent it.Especially, only otherwise have structural hazard, every technical characterictic of mentioning among each embodiment all can combine in any way.The present invention is not limited to disclosed specific embodiment in the literary composition, but comprises all technical schemes in the scope that falls into claim.
Claims (10)
1. thin-disc laser dielectric laser device comprises:
First speculum, it is coated on the logical light face of thin-disc laser medium, and is high reflection to the laser that pumping light and laser produce, and is used for the propagation of the described pumping light of control and as the back mirror of laserresonator;
Second speculum, it is concave spherical mirror, its substrate is concave spherical surface towards the one side of described first speculum,
Wherein, the pumping photocontrol chamber that described first speculum and described second speculum are formed makes pumping light three-dimensional circular light path along " Z " font between described first speculum and described second speculum repeatedly come and go propagation, and described pumping light is repeatedly by a plurality of zones on the described thin-disc laser medium, that become axial symmetry to distribute.
2. thin-disc laser dielectric laser device according to claim 1 is characterized in that,
Described second speculum comprises two zones that area is different at least, wherein area less zone is for only high transmission of pumping, make described pumping light enter in the described pumping photocontrol chamber by this zone, the bigger zone of another area is to only high reflection of described pumping, makes that entering to pumping light in the described pumping photocontrol chamber comes and goes between this zone and described first speculum and to propagate.
3. thin-disc laser dielectric laser device according to claim 2 is characterized in that,
Described second speculum, its substrate one side of described first speculum dorsad are coated with the pumping anti-reflection film of high transmission only.
4. thin-disc laser dielectric laser device according to claim 2 is characterized in that,
One zone, center of described second speculum has through hole, and the laser that produces come and go to be propagated in described laserresonator by described through hole, different two zones of described area not with this region overlapping.
5. thin-disc laser dielectric laser device according to claim 2 is characterized in that,
One zone, center of described second speculum is coated with the anti-reflection film that the laser that produces is had high transmission, and the laser that produces come and go to be propagated in described laserresonator by this zone, different two zones of described area not with this region overlapping.
6. according to each described thin-disc laser dielectric laser device in the claim 1 to 5, it is characterized in that,
The linear pattern resonant cavity that described laserresonator is made up of described first speculum and an outgoing mirror, the laser that produces is by described outgoing mirror coupling output.
7. according to each described thin-disc laser dielectric laser device in the claim 1 to 5, it is characterized in that, described laserresonator is by described first speculum, an outgoing mirror and two figure of eight resonant cavitys that speculum is formed, and the laser that produces is by described outgoing mirror coupling output.
8. thin-disc laser dielectric laser device according to claim 7 is characterized in that, comprises a polarizer and a Faraday rotator in the light path of described figure of eight resonant cavity at least, and the two acting in conjunction makes that the laser that produces can only one way propagation.
9. thin-disc laser dielectric laser device according to claim 7 is characterized in that, comprises an etalon in the light path of described figure of eight resonant cavity at least, and its spectral width to the fundamental frequency light that produces is pressed narrow.
10. thin-disc laser dielectric laser device according to claim 7 is characterized in that, comprises a nonlinear optical crystal in the light path of described figure of eight resonant cavity at least, and it carries out frequency inverted to the fundamental frequency light that produces.
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| CN105742945A (en) * | 2016-04-29 | 2016-07-06 | 长春理工大学 | Microchip laser device |
| CN109494551A (en) * | 2017-09-13 | 2019-03-19 | 中国科学院大连化学物理研究所 | A kind of disc laser |
| CN109494551B (en) * | 2017-09-13 | 2024-03-01 | 中国科学院大连化学物理研究所 | Disc laser |
| CN110661163A (en) * | 2018-06-29 | 2020-01-07 | 福州高意光学有限公司 | Thin-chip laser and preparation method of thin chip thereof |
| CN109286123A (en) * | 2018-08-30 | 2019-01-29 | 华中科技大学 | One kind being based on three paraboloidal disc lasers |
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Application publication date: 20130918 |