CN106410583A - Intracavity frequency doubling enhanced laser - Google Patents
Intracavity frequency doubling enhanced laser Download PDFInfo
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- CN106410583A CN106410583A CN201610439762.0A CN201610439762A CN106410583A CN 106410583 A CN106410583 A CN 106410583A CN 201610439762 A CN201610439762 A CN 201610439762A CN 106410583 A CN106410583 A CN 106410583A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/0813—Configuration of resonator
- H01S3/0815—Configuration of resonator having 3 reflectors, e.g. V-shaped resonators
-
- 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
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
- H01S3/109—Frequency multiplication, e.g. harmonic generation
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Lasers (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The present invention provides an intracavity frequency doubling enhanced laser. The laser comprises a first reflector, an SHG characteristic crystal, a THG characteristic crystal, a second reflector and a third reflector; the second reflector is configured to reflect the first frequency doubling light and the second frequency doubling light propagated in the THG characteristic crystal, the first frequency doubling light and the second frequency doubling light are reflected on a Brewster angle plane to the interior of the THG characteristic crystal, and the frequency doubling light to be reflected of the THG characteristic crystal is transmitted out; the third reflector is configured to reflect the first frequency doubling light and the second frequency doubling light propagated in the THG characteristic crystal, the first frequency doubling light and the second frequency doubling light are reflected on the Brewster angle plane, and the frequency doubling light to be reflected of the THG characteristic crystal is transmitted out; and the frequency doubling light to be used for refraction and the frequency doubling light to be used for reflection is recycled in the light path reversibility mode to the THG characteristic crystal for sum frequency, the frequency doubling light which fully employs the intracavity frequency doubling of the ultraviolet laser is recycled to reduce the invalid loss of the laser so as to maximize the sum frequency efficiency, and the recycled frequency doubling light can perform multi-time sum frequency so as to increase the power output of the ultraviolet light.
Description
Technical field
The invention belongs to laser field is and in particular to a kind of intracavity frequency doubling enhanced ultraviolet laser instrument.
Background technology
Ultraviolet laser industrial micro Process field tool be widely used, be such as applied to industrial part mark,
Boring, scribing, welding, cutting, and it is applied to the micro Process of medical apparatus and instruments, the encapsulation of electronic component,
Micro-component stereo shaping field.In addition, in microelectronics, spectrum analyses, optical data storage, CD control
System, Atmospheric Survey, photochemistry, photobiology, space optical communication, laser induced material atom fluorescence and
Uv absorption and medical field have a wide range of applications.Realizing can in the core mainly laser instrument of laser
To realize the working-laser material of population inversion, i.e. the operation material containing metastable energy level.As working substance
Matter is that lenticular or glass laser instrument is referred to as body laser and amorphous laser generally this two class
Laser instrument is referred to as solid state laser.The major part composition of the structure of fixed laser is laser work respectively
Material, optical resonator and pumping system, solid laser working substance be have can produce stimulated emission make
Metal ion mixes crystal and makes.These are doped to the main spy of the metal ion in solid matrix
Putting is：There is relatively wide effective absorbing band, relatively higher fluorescence efficiency, long fluorescence lifetime
With narrow fluorescent line, thus it is easy to produce population inversion and stimulated emission.In fixed laser
Power supply is powered for pumping source, to provide pump light to laser crystal, so that laser crystal produces upper energy level grain
Subnumber accumulates, and then provides gain, produces stimulated radiation, and wherein, optical resonator is by completely reflecting mirror and defeated
Appearance is constituted.
The distribution of current intracavity frequency doubling structure refers to Fig. 1, and Fig. 1 is dividing of existing intracavity frequency doubling structure
Cloth schematic diagram, as shown in figure 1, the total reflective mirror being distributed as being collectively aligned successively of existing intracavity frequency doubling structure
110th, SHG (Second-Harmonic Generation) characteristic crystal 120 and THG (Third-Harmonic
Generation) characteristic crystal 130, wherein said total reflective mirror 110 is used for reflection for the first time from described THG
Characteristic crystal 130 is injected, and reaches the base of described total reflective mirror 110 through described SHG characteristic crystal 120
Frequency light and frequency doubled light, so that described fundamental frequency light and described frequency doubled light press backtracking, and then are transmitted to described
In SHG characteristic crystal 120 and described THG characteristic crystal 130, so that backtracking is transmitted to described THG
Described fundamental frequency light in characteristic crystal 130 and described frequency doubled light carry out in described THG characteristic crystal 130 and
Frequently, thus producing frequency tripling light (being ultraviolet light).Ordinary circumstance can be in described THG characteristic crystal 130
The surface of outgoing ultraviolet light carry out the cutting of Brewster's angle, so that for the first time from described THG characteristic crystal
The damage of 130 fundamental frequency light injected is minimum, and effect in addition is as shown in figure 1, making in described THG characteristic
The ultraviolet light a and frequency doubled light b transmiting described THG characteristic crystal carrying out in crystal 130 and frequently producing
With fundamental frequency light c because the Brewster angle plane d that the difference of refractive index is split on right side carries out dispersion beam splitting biography
Broadcast, unquestionable ultraviolet light is the demand output of laser instrument, but same in the ultraviolet light exporting effective demand
When, the demand that the frequency doubled light propagating out from Brewster's angle beam splitting does not utilize, thus be abandoned, unreal
The effectively utilizes of existing frequency doubled light or recovery, increase the invalid loss of laser instrument.
Content of the invention
The present invention is lost big, the low problem of utilization rate for existing laser instrument is invalid, there is provided a kind of intracavity times
Frequency enhancement mode laser instrument, it is desirable to provide a kind of invalid loss is low, and utilization rate is high, and high-power intracavity frequency doubling
Enhancement mode laser instrument.
The present invention provides a kind of intracavity frequency doubling enhancement mode laser instrument, anti-including be collectively aligned distribution successively first
Penetrate mirror, SHG characteristic crystal and THG characteristic crystal, described first reflecting mirror is used for reflection from described THG
Characteristic crystal injects the institute through described SHG characteristic crystal described first reflecting mirror of arrival for the fundamental frequency light of propagation
State fundamental frequency light and the first frequency doubled light, so that described fundamental frequency light and described first frequency doubled light press backtracking, and then
It is transmitted to the frequency multiplication that described SHG characteristic crystal carries out I type-Ⅱphase matching, produce the second frequency doubled light, simultaneously
Transmit described fundamental frequency light, described first frequency doubled light and described second frequency doubled light in described THG characteristic crystal
Carry out II type-Ⅱphase matching and frequency, to produce and beam splitting output ultraviolet light, wherein, described first frequency doubled light
It is to produce during described SHG characteristic crystal from the described fundamental frequency light that described THG characteristic crystal is injected
Raw frequency doubled light, the incidence surface of described SHG characteristic crystal and exiting surface be coated with respectively for transmission fundamental frequency light and
The anti-reflection film of frequency doubled light, and, the ultraviolet light exiting surface of described THG characteristic crystal is cut into Brewster's angle
Plane, the exiting surface of fundamental frequency light described in described THG characteristic crystal outgoing to described SHG characteristic crystal is coated with
Anti-reflection film for transmission fundamental frequency light and frequency doubled light and frequency tripling light high-reflecting film；And,
Described intracavity frequency doubling enhancement mode laser instrument also includes the second reflecting mirror and the 3rd reflecting mirror, and described second is anti-
Penetrate mirror for reflecting described first frequency doubled light propagated in described THG characteristic crystal and described second frequency doubled light,
Carry out reflexing to described THG characteristic crystals in described Brewster angle plane, transmit described afterwards again
The stand-by frequency doubled light of reflection of THG characteristic crystal, reflects stand-by frequency doubled light extremely so that the recovery of reversibility of optical path is described
Carry out again and frequency in described THG characteristic crystal, it is brilliant that described 3rd reflecting mirror is used for reflecting described THG characteristic
In body, described first frequency doubled light propagated and described second frequency doubled light are reflected in described Brewster angle plane
Go out the stand-by frequency doubled light of refraction of described THG characteristic crystal, with stand-by times of the described refraction of the recovery of reversibility of optical path
Frequency light is to carrying out in described THG characteristic crystal again and frequency.
As a kind of optional embodiment, described first reflecting mirror is to carry out instead for fundamental frequency light and frequency doubled light
The total reflective mirror penetrated.
As a kind of optional embodiment, described second reflecting mirror and described 3rd reflecting mirror are for frequency multiplication
The total reflective mirror that light is reflected.
As a kind of optional embodiment, described SHG characteristic crystal is lithium triborate crystal or β skew
Barium borate crystal or potassium dihydrogen phosphate.
As a kind of optional embodiment, described THG characteristic crystal is lithium triborate crystal.
The present invention provides a kind of intracavity frequency doubling enhancement mode laser instrument, anti-including be collectively aligned distribution successively first
Penetrate mirror, SHG characteristic crystal and THG characteristic crystal, also include the second reflecting mirror and the 3rd reflecting mirror, institute
State the first reflecting mirror for reflection inject the fundamental frequency light of propagation through described SHG from described THG characteristic crystal
Characteristic crystal reaches the described fundamental frequency light of described first reflecting mirror and the first frequency doubled light so that described fundamental frequency light and
Described first frequency doubled light presses backtracking, and then is transmitted to described SHG characteristic crystal and produces the second frequency multiplication
Light, transmits described fundamental frequency light, described first frequency doubled light and described second frequency doubled light special to described THG simultaneously
Property crystal in carry out and frequency produces and beam splitting output ultraviolet light, and described second reflecting mirror be used for reflecting described
Described first frequency doubled light propagated in THG characteristic crystal and described second frequency doubled light are in described Brewster's angle
Plane carries out reflexing to described THG characteristic crystals, transmits described THG characteristic crystal afterwards again
Reflect stand-by frequency doubled light, reflect stand-by frequency doubled light to described THG characteristic crystalline substance so that the recovery of reversibility of optical path is described
In body, described 3rd reflecting mirror be used for reflect in described THG characteristic crystal propagate described first frequency doubled light and
Described second frequency doubled light carries out reflecting the refraction of described THG characteristic crystal in described Brewster angle plane
Stand-by frequency doubled light, reflects stand-by frequency doubled light to described THG characteristic crystal so that the recovery of reversibility of optical path is described
In, while exporting the ultraviolet light of effective demand, reflect stand-by frequency multiplication so that the recovery of reversibility of optical path is described
Light and the stand-by frequency doubled light of described reflection carry out again and frequency to described THG characteristic crystal, by reclaiming fully profit
With the frequency doubled light of ultraviolet laser intracavity frequency doubling, reduce the invalid loss of laser instrument, make the efficiency with frequency
Maximum, the frequency doubled light after simultaneously reclaiming can carry out multiple and frequency, increased the power output of ultraviolet light.
Brief description
Fig. 1 is the distribution schematic diagram of existing intracavity frequency doubling structure；
Fig. 2 is a kind of structure chart of intracavity frequency doubling enhancement mode laser instrument provided in an embodiment of the present invention.
Specific embodiment
Embodiments set forth below represents the necessary information allowing those skilled in the art to put into practice the present invention, and
Illustrate to put into practice the best mode of the present invention.Once having read description below, people in the art with reference to the accompanying drawings
Member is just it will be understood that the present invention's conceives and it will be recognized that the application of these concepts not particularly addressed herein.Should
Work as understanding, these are conceived and apply the scope falling into disclosure and the accompanying claims book.With reference to enforcement
The present invention is further described for example.
Refer to Fig. 2, Fig. 2 is a kind of knot of intracavity frequency doubling enhancement mode laser instrument provided in an embodiment of the present invention
Structure schematic diagram.As shown in Fig. 2 the intracavity frequency doubling enhancement mode laser instrument that the present embodiment provides is included successively in the same direction
First reflecting mirror 210 of arranged distribution, SHG characteristic crystal 220, THG characteristic crystal 230, second are anti-
Penetrate mirror 240 and the 3rd reflecting mirror 250, the first reflecting mirror 210 is used for reflection and penetrates from THG characteristic crystal 230
Enter the fundamental frequency light of propagation and reach the fundamental frequency light of the first reflecting mirror 210 and first times through SHG characteristic crystal 220
Frequency light, so that fundamental frequency light and the first frequency doubled light press backtracking, and then is transmitted to SHG characteristic crystal 220
Carry out the frequency multiplication of I type-Ⅱphase matching, produce the second frequency doubled light, transmit fundamental frequency light, the first frequency multiplication simultaneously
That light and the second frequency doubled light carry out II type-Ⅱphase matching in THG characteristic crystal 230 and frequency, with produce and point
Bundle output ultraviolet light b, wherein, the first frequency doubled light is that the fundamental frequency light injected from THG characteristic crystal 230 is passed through
The frequency doubled light producing during SHG characteristic crystal 220, the incidence surface of SHG characteristic crystal 220 and go out light
Face is coated with the anti-reflection film for transmission fundamental frequency light and frequency doubled light respectively, and, the purple of THG characteristic crystal 230
Outer smooth exiting surface is cut into Brewster angle plane, and THG characteristic crystal 230 outgoing fundamental frequency light is special to SHG
Property crystal 220 exiting surface be coated with high anti-for the anti-reflection film of transmission fundamental frequency light and frequency doubled light and frequency tripling light
Film；Frequency tripling light high-reflecting film is ultraviolet light high-reflecting film.And, the second reflecting mirror 240 is used for reflecting THG spy
Property crystal 230 in propagate the first frequency doubled light and the second frequency doubled light, reflexed in Brewster angle plane
Inside THG characteristic crystal 230, transmit the stand-by frequency doubled light of reflection of THG characteristic crystal 230 afterwards again
C, reflects stand-by frequency doubled light with the recovery of reversibility of optical path and carries out again and frequency to THG characteristic crystal 230,
3rd reflecting mirror 250 is used for reflecting the first frequency doubled light propagated in THG characteristic crystal 230 and the second frequency doubled light
Carry out reflecting the refraction stand-by frequency doubled light c of THG characteristic crystal 230 in Brewster angle plane, with light path
Reversible reclaim reflect stand-by frequency doubled light carry out to THG characteristic crystal 230 again and frequency.
Preferably, the first reflecting mirror 210 is the total reflective mirror being reflected for fundamental frequency light and frequency doubled light.
Preferably, the second reflecting mirror 240 and the 3rd reflecting mirror 250 are for being all-trans that frequency doubled light is reflected
Mirror.
Preferably, SHG characteristic crystal 220 is lithium triborate crystal.SHG characteristic crystal 220 is chosen as three
Lithium tetraborate crystal, belongs to micro- deliquescence crystal mainly due to lithium triborate crystal, and it is special not need to carry out
Keep away wet process, and there is higher nonlinear factor.
Preferably, THG characteristic crystal 230 is lithium triborate crystal.THG characteristic crystal 230 is chosen as
Lithium triborate crystal, belongs to micro- deliquescence crystal mainly due to lithium triborate crystal, and it is special not need to carry out
Keep away wet process, and there is higher nonlinear factor, and it be high, in purple to convert the efficiency comparison of ultraviolet light
The damage threshold of outer light is high, the features such as long service life.
Intracavity frequency doubling enhancement mode laser instrument provided in an embodiment of the present invention, including being collectively aligned the of distribution successively
One reflecting mirror 210, SHG characteristic crystal 220 and THG characteristic crystal 230, also include the second reflecting mirror 240
With the 3rd reflecting mirror 250, the first reflecting mirror 210 is used for reflecting injects propagation from THG characteristic crystal 230
Fundamental frequency light reaches fundamental frequency light and first frequency doubled light of the first reflecting mirror 210 through SHG characteristic crystal 220, with
Make fundamental frequency light and the first frequency doubled light by backtracking, and then be transmitted to SHG characteristic crystal 220 to produce second
Frequency doubled light, transmits fundamental frequency light, the first frequency doubled light and the second frequency doubled light to THG characteristic crystal 230 simultaneously
In carry out and frequency produces and beam splitting output ultraviolet light, and the second reflecting mirror 240 to be used for reflecting THG characteristic brilliant
The first frequency doubled light propagated in body 230 and the second frequency doubled light carry out reflexing to THG spy in Brewster angle plane
Property crystal 230 inside, transmit the stand-by frequency doubled light of reflection of THG characteristic crystal 230 afterwards, with light path again
Reversible recovery reflects stand-by frequency doubled light to THG characteristic crystal 230, and the 3rd reflecting mirror 250 is used for anti-
Penetrate the first frequency doubled light propagated in THG characteristic crystal 230 and the second frequency doubled light is carried out in Brewster angle plane
Reflect the stand-by frequency doubled light of refraction of THG characteristic crystal 230, reflect stand-by times with the recovery of reversibility of optical path
Frequency light to THG characteristic crystal 230, export effective demand ultraviolet light while, with reversibility of optical path
Recovery reflect stand-by frequency doubled light and reflect stand-by frequency doubled light carry out to THG characteristic crystal 230 again and frequency,
By reclaiming the frequency doubled light taking full advantage of ultraviolet laser intracavity frequency doubling, reduce the invalid loss of laser instrument,
Make maximum with the efficiency of frequency, the frequency doubled light after simultaneously reclaiming can carry out multiple and frequency, increased the work(of ultraviolet light
Rate exports.
Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and is not to this
The restriction of the embodiment of invention.For those of ordinary skill in the field, in the base of described above
Can also make other changes in different forms on plinth.There is no need to all of embodiment party
Formula is exhaustive.And the obvious change that the spirit that these belong to the present invention is extended out or variation are still located
Among protection scope of the present invention.
Claims (5)
1. a kind of intracavity frequency doubling enhancement mode laser instrument is it is characterised in that include being collectively aligned the of distribution successively
One reflecting mirror, SHG characteristic crystal and THG characteristic crystal, described first reflecting mirror is used for reflection from described
The fundamental frequency light that THG characteristic crystal injects propagation reaches described first reflecting mirror through described SHG characteristic crystal
Described fundamental frequency light and the first frequency doubled light so that described fundamental frequency light and described first frequency doubled light press backtracking,
And then it is transmitted to the frequency multiplication that described SHG characteristic crystal carries out I type-Ⅱphase matching, produce the second frequency doubled light,
Transmit described fundamental frequency light, described first frequency doubled light and described second frequency doubled light brilliant to described THG characteristic simultaneously
Carry out in body II type-Ⅱphase matching and frequency, to produce and beam splitting output ultraviolet light, wherein, described first times
Frequency light is the described fundamental frequency light injected from the described THG characteristic crystal process through described SHG characteristic crystal
The frequency doubled light of middle generation, the incidence surface of described SHG characteristic crystal and exiting surface are coated with respectively for transmission fundamental frequency
Light and the anti-reflection film of frequency doubled light, and, the ultraviolet light exiting surface of described THG characteristic crystal be cut into cloth scholar this
Special angle plane, the exiting surface of fundamental frequency light described in described THG characteristic crystal outgoing to described SHG characteristic crystal
It is coated with the anti-reflection film for transmission fundamental frequency light and frequency doubled light and frequency tripling light high-reflecting film；
Described intracavity frequency doubling enhancement mode laser instrument also includes the second reflecting mirror and the 3rd reflecting mirror, and described second is anti-
Penetrate mirror for reflecting described first frequency doubled light propagated in described THG characteristic crystal and described second frequency doubled light,
Carry out reflexing to described THG characteristic crystals in described Brewster angle plane, transmit described afterwards again
The stand-by frequency doubled light of reflection of THG characteristic crystal, reflects stand-by frequency doubled light extremely so that the recovery of reversibility of optical path is described
Carry out again and frequency in described THG characteristic crystal, it is brilliant that described 3rd reflecting mirror is used for reflecting described THG characteristic
In body, described first frequency doubled light propagated and described second frequency doubled light are reflected in described Brewster angle plane
Go out the stand-by frequency doubled light of refraction of described THG characteristic crystal, with stand-by times of the described refraction of the recovery of reversibility of optical path
Frequency light is to carrying out in described THG characteristic crystal again and frequency.
2. intracavity frequency doubling enhancement mode laser instrument as claimed in claim 1 is it is characterised in that described first is anti-
Penetrating mirror is the total reflective mirror being reflected for fundamental frequency light and frequency doubled light.
3. intracavity frequency doubling enhancement mode laser instrument as claimed in claim 1 or 2 is it is characterised in that described
Two-mirror and described 3rd reflecting mirror are the total reflective mirror being reflected for frequency doubled light.
4. intracavity frequency doubling enhancement mode laser instrument as claimed in claim 3 is it is characterised in that described SHG
Characteristic crystal is lithium triborate crystal.
5. the intracavity frequency doubling enhancement mode laser instrument as described in claim 3 or 4 is it is characterised in that described THG
Characteristic crystal is lithium triborate crystal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439762.0A CN106410583A (en) | 2016-06-17 | 2016-06-17 | Intracavity frequency doubling enhanced laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439762.0A CN106410583A (en) | 2016-06-17 | 2016-06-17 | Intracavity frequency doubling enhanced laser |
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| CN106410583A true CN106410583A (en) | 2017-02-15 |
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| CN201610439762.0A Pending CN106410583A (en) | 2016-06-17 | 2016-06-17 | Intracavity frequency doubling enhanced laser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106520A (en) * | 2019-11-28 | 2020-05-05 | 北京科益虹源光电技术有限公司 | 355nm laser |
| WO2021017539A1 (en) * | 2019-07-26 | 2021-02-04 | 南京钻石激光科技有限公司 | Device for generating triple rate of laser radiation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060742A (en) * | 1990-10-11 | 1992-04-29 | 中国科学院上海光学精密机械研究所 | Chamber type higher harmonic laser device |
| US5850407A (en) * | 1997-11-25 | 1998-12-15 | Lightwave Electronics Corporation | Third-harmonic generator with uncoated brewster-cut dispersive output facet |
| CN101355224A (en) * | 2008-08-12 | 2009-01-28 | 山西大学 | Single frequency inner cavity frequency-doubling laser |
| JP2014032309A (en) * | 2012-08-03 | 2014-02-20 | Mitsubishi Electric Corp | Laser oscillator |
-
2016
- 2016-06-17 CN CN201610439762.0A patent/CN106410583A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060742A (en) * | 1990-10-11 | 1992-04-29 | 中国科学院上海光学精密机械研究所 | Chamber type higher harmonic laser device |
| US5850407A (en) * | 1997-11-25 | 1998-12-15 | Lightwave Electronics Corporation | Third-harmonic generator with uncoated brewster-cut dispersive output facet |
| CN101355224A (en) * | 2008-08-12 | 2009-01-28 | 山西大学 | Single frequency inner cavity frequency-doubling laser |
| JP2014032309A (en) * | 2012-08-03 | 2014-02-20 | Mitsubishi Electric Corp | Laser oscillator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021017539A1 (en) * | 2019-07-26 | 2021-02-04 | 南京钻石激光科技有限公司 | Device for generating triple rate of laser radiation |
| CN111106520A (en) * | 2019-11-28 | 2020-05-05 | 北京科益虹源光电技术有限公司 | 355nm laser |
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