CN111146670A - Ultraviolet pulse laser - Google Patents
Ultraviolet pulse laser Download PDFInfo
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- CN111146670A CN111146670A CN201911336164.0A CN201911336164A CN111146670A CN 111146670 A CN111146670 A CN 111146670A CN 201911336164 A CN201911336164 A CN 201911336164A CN 111146670 A CN111146670 A CN 111146670A
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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
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0078—Frequency filtering
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/106—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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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Lasers (AREA)
Abstract
The invention discloses an ultraviolet pulse laser, belongs to the technical field of laser pulse, and can solve the problems of low energy and poor beam quality of the existing 226nm ultraviolet pulse laser. The laser includes: the laser comprises a pumping source, and a titanium sapphire crystal, a grating component and a first frequency doubling crystal which are sequentially arranged on an emergent light path of the pumping source; laser emitted by a pumping source passes through a titanium sapphire crystal to obtain first pulse laser; the grating component is used for compressing the line width of the first pulse laser and tuning the central wavelength of the first pulse laser; the first frequency doubling crystal is used for converting the first pulse laser into the second pulse laser; the laser also comprises a laser unit, and the laser unit is used for generating third pulse laser; and the sum frequency unit is used for carrying out sum frequency on the second pulse laser and the third pulse laser to obtain fourth pulse laser. The invention is suitable for optical diagnosis of the hypersonic flow field.
Description
Technical Field
The invention relates to an ultraviolet pulse laser, and belongs to the technical field of laser pulse.
Background
The technology needs a beam of narrow-line-width tunable 226nm ultraviolet pulse laser, the narrow-line-width tunable 226nm ultraviolet pulse laser is integrated into a planar laser through an optical system, the nitric oxide in a flow field can be excited, and the characteristic parameters such as the flow field structure, the speed and the temperature of the flow field can be obtained by shooting fluorescence through a high-speed image enhancement camera.
The existing 226nm ultraviolet pulse laser is generated by a dye laser, the dye laser generally uses liquid organic dye as a laser medium, and the laser generated by the dye laser has the defects of low energy, poor beam quality, incapability of being used at high repetition frequency and the like.
Disclosure of Invention
The invention provides an ultraviolet pulse laser, which can solve the problems that the existing ultraviolet pulse laser is low in energy and poor in beam quality and cannot be used under high repetition frequency.
The invention provides an ultraviolet pulse laser, comprising: the laser comprises a pumping source, and a titanium sapphire crystal, a grating component and a first frequency doubling crystal which are sequentially arranged on an emergent light path of the pumping source; the laser emitted by the pumping source passes through the titanium sapphire crystal to obtain a first pulse laser; the grating component is used for compressing the line width of the first pulse laser and tuning the central wavelength of the first pulse laser; the first frequency doubling crystal is used for converting the first pulse laser into the second pulse laser.
The laser also comprises a laser unit, wherein the laser unit is used for generating third pulse laser; the laser device further comprises a sum frequency unit, and the sum frequency unit is used for carrying out sum frequency on the second pulse laser and the third pulse laser to obtain fourth pulse laser.
Optionally, the pump source is a 532nm pump source; the first pulse laser is 786nm pulse laser; the second pulse laser is 393nm pulse laser; the third pulse laser is 532nm pulse laser; the fourth pulse laser is 226nm ultraviolet pulse laser.
Optionally, the laser further comprises an amplifying part; the amplifying part is positioned on a light path between the grating component and the first frequency doubling crystal and is used for amplifying the signal of emergent light of the grating component.
Optionally, the laser further includes a beam splitter; the beam splitter is arranged on a light path between the pumping source and the titanium sapphire crystal and is used for splitting emergent light of the pumping source into a first laser beam and a second laser beam; the titanium gem crystal is used for converting the first laser beam into the first pulse laser and then injecting the first pulse laser into the grating component.
A first total reflection mirror is arranged on a light path between the grating component and the amplifying component; the first full mirror is used for reflecting the emergent light of the grating assembly to the amplifying part; the laser further comprises a second fully reflective mirror for reflecting the second laser beam to the amplifying means; the amplifying part may perform signal amplification on the outgoing light of the first half mirror using the second laser beam.
Optionally, a third total reflection mirror is arranged on an incident light path of the titanium sapphire crystal; an output mirror is arranged on an emergent light path of the grating component; the third fully reflective mirror and the output mirror form a resonant cavity.
Optionally, the grating assembly includes: blazed gratings and grating mirrors; the blazed grating is arranged between the titanium sapphire crystal and the output mirror and is used for compressing the line width of the first pulse laser; the grating reflector is perpendicular to the first-order diffraction angle of the blazed grating and is used for tuning the central wavelength of the first pulse laser.
Optionally, the amplifying part is an amplifying-grade titanium sapphire crystal.
Optionally, the laser unit includes: the laser seed source, the electro-optical modulator and the second frequency doubling crystal; the laser seed source is used for generating 1064nm continuous laser; the electro-optical modulator and the second frequency doubling crystal are sequentially arranged on an emergent light path of the laser seed source;
the electro-optical modulator is used for converting the 1064nm continuous laser into 1064nm pulse laser; the second frequency doubling crystal is used for converting the 1064nm pulsed laser into the third pulsed laser.
Optionally, the laser unit further includes: a pulsed laser amplifier; the pulse laser amplifier is arranged on a light path between the electro-optical modulator and the second frequency doubling crystal and used for amplifying signals of the 1064nm pulse laser.
Optionally, the laser further includes: a control unit; the control unit is used for controlling the working states of the pumping source and the electro-optical modulator so as to synchronize the second pulse laser and the third pulse laser in time domain.
The invention has the following beneficial effects:
the invention provides an ultraviolet pulse laser, which obtains a fourth ultraviolet pulse laser by carrying out sum frequency on a second pulse laser and a third pulse laser, wherein the second pulse laser is generated firstly, laser generated by a pumping source is injected into a titanium sapphire crystal and then converted into a first pulse laser, the first pulse laser enters a grating component, the grating component not only can greatly compress the actual oscillation starting wavelength range, but also can further control the central wavelength position of a narrower oscillation starting spectral range, therefore, after passing through the grating component, the first pulse laser with tunable narrow line width can be obtained, and finally, the second pulse laser is obtained after the first pulse laser with tunable narrow line width is frequency-doubled by a frequency doubling crystal.
The purpose of finally tuning the central wavelength of the fourth ultraviolet pulse laser is achieved by tuning the central wavelength of the first pulse laser, so that the central wavelength of the 226nm ultraviolet pulse laser can be aligned to the absorption peak of nitric oxide in the application process, and a better absorption effect is generated. Compared with the 226nm ultraviolet laser generated by a dye laser in the prior art, the 226nm laser generated by the laser has the advantages of high energy, good beam quality and high-frequency reuse.
Drawings
FIG. 1 is a schematic diagram of an overall structure provided by an embodiment of the present invention;
fig. 2 is a schematic diagram of a specific structure of a 393nm laser unit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a 532nm laser unit according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to examples, but the present invention is not limited to these examples.
The ultraviolet pulse laser provided by the embodiment of the invention comprises: a pumping source 101, and a titanium sapphire crystal 104, a grating component and a first frequency doubling crystal 111 which are arranged on an emergent light path of the pumping source 101 in sequence.
Laser emitted by a pumping source 101 passes through a titanium sapphire crystal 104 to obtain first pulse laser; the grating component is used for compressing the line width of the first pulse laser and tuning the central wavelength of the first pulse laser; the first frequency doubling crystal 111 is used for converting the first pulse laser into the second pulse laser.
As shown in fig. 1, the laser further includes a laser unit 2, the laser unit 2 is used for generating third pulse laser light; the laser further comprises a sum frequency unit 3, wherein the sum frequency unit is used for carrying out sum frequency on the second pulse laser and the third pulse laser to obtain fourth pulse laser.
As shown in fig. 2, the laser further includes a 393nm laser unit 1, a pump source 101, and a titanium sapphire crystal 104, a grating component and a first frequency doubling crystal 111 which are sequentially arranged on an emergent light path of the pump source 101, all of which are components in the 393nm laser unit 1; the first pulse laser is 786nm pulse laser; the second pulse laser is 393nm pulse laser; the third pulse laser is 532nm pulse laser; the fourth pulse laser is 226nm ultraviolet pulse laser.
In practical application, 393nm pulse laser and 532nm pulse laser are subjected to sum frequency to obtain 226nm ultraviolet pulse laser, wherein the 393nm pulse laser is firstly generated through a pumping source 101 to generate 532nm pulse laser, then the 532nm pulse laser enters a titanium gem crystal 104 to be converted into 786nm pulse laser and then enters a grating assembly, the grating assembly not only can greatly compress the actual oscillation starting wavelength range, but also can further control the central wavelength position of a narrower oscillation starting spectral range, therefore, after passing through the grating assembly, 786nm pulse laser with tunable narrow line width can be obtained, and finally, after frequency doubling is carried out on the 786nm pulse laser with tunable narrow line width through a frequency doubling crystal 111, 393nm pulse laser is obtained.
The purpose of finally tuning the central wavelength of the 226nm ultraviolet pulse laser is achieved by tuning the central wavelength of the 786nm pulse laser, so that the central wavelength of the 226nm ultraviolet pulse laser can be aligned to the absorption peak of nitric oxide in the application process, and a better absorption effect is generated. Compared with the 226nm laser generated by a dye laser in the prior art, the 226nm laser generated by the laser has the advantages of high energy, good beam quality and high-frequency repeated use.
The 393nm laser unit 1 provided by the embodiment of the invention further comprises an amplifying part 109; the amplifying part 109 is located on the optical path between the grating assembly and the first frequency doubling crystal 111, and is used for amplifying the signal of the emergent light of the grating assembly.
Wherein the amplifying member 109 is typically an amplifying grade titanium sapphire crystal.
In practical application, the amplifying part 109 is disposed on the optical path between the grating assembly and the first frequency doubling crystal 111, and is configured to amplify the energy of the narrow-linewidth tunable 786nm pulsed laser generated by the grating assembly, so that the finally obtained 226nm ultraviolet pulsed laser has higher energy.
The laser provided by the embodiment of the invention also comprises a beam splitter 102; the beam splitter 102 is arranged on an optical path between the pump source 101 and the titanium sapphire crystal 104 and is used for splitting emergent light of the pump source 101 into a first laser beam and a second laser beam; the titanium gem crystal 104 is used for converting the first laser beam into a first pulse laser and then injecting the first pulse laser into the grating component;
a first total reflection mirror 108 is further arranged on the light path between the grating assembly and the amplifying part 109; the first total reflection mirror 108 is used for reflecting the emergent light of the grating assembly to the amplifying part 109; the laser further comprises a second fully reflective mirror 110, the second fully reflective mirror 110 being adapted to reflect the second laser beam to the amplifying section 109; the amplification section 109 may signal-amplify the exit light of the first half mirror 108 with the second laser beam.
In practical application, a beam splitter 102 is further disposed in the 393nm laser unit 1, the beam splitter 102 is disposed on an optical path between the pump source 101 and the titanium sapphire crystal 104, the outgoing light from the pump source 101 is split into a first laser beam and a second laser beam, in addition, a first all-reflection mirror 108 is further disposed on an optical path between the grating assembly and the amplifying component 109, and a second all-reflection mirror 110 is further disposed between the beam splitter 102 and the amplifying component 109;
the first laser beam is converted into a first pulse laser after passing through the titanium sapphire crystal 104 and is emitted into the grating assembly, and emergent light of the grating assembly is reflected into the amplifying assembly 109 through the first full-reflecting mirror 108; the second laser beam is reflected to the amplifying part 109 by the second totally reflecting mirror 110;
the first laser beam and the second laser beam generate a laser gain in the amplifying part 109, and the amplifying part 109 can amplify the energy of the 786nm pulse laser by using the energy of the second laser beam, so that the finally obtained 226nm ultraviolet pulse laser has a higher energy.
The incident light path of the titanium sapphire crystal 104 provided by the embodiment of the invention is provided with a third total reflection mirror 103; an output mirror 106 is arranged on an emergent light path of the grating component; the third fully reflective mirror 103 and the output mirror 106 form a resonant cavity.
In practical application, a third full-reflection mirror 103 is further arranged between the titanium sapphire crystal 104 and the beam splitter 102, an output mirror 106 is further arranged between the grating assembly and the first full-reflection mirror 108, and the third full-reflection mirror 103 and the output mirror 106 form an oscillation-level resonant cavity, so that the injection power of 786nm pulse laser can be improved under the condition that the titanium sapphire crystal 104 is not damaged by the resonant cavity structure, and the stability of the 393nm laser unit 1 is ensured.
The grating assembly provided by the embodiment of the invention comprises: a blazed grating 105 and a grating mirror 107; the blazed grating 105 is arranged between the titanium sapphire crystal 104 and the output mirror 106 and is used for compressing the line width of the first pulse laser; the grating mirror 107 is disposed perpendicular to the first-order diffraction angle of the blazed grating 105, and is used to tune the center wavelength of the first pulse laser light.
In practical application, the blazed grating 105 is arranged on a light path between the titanium sapphire crystal and the output mirror 106, the grating reflector 107 is arranged perpendicular to a first-order diffraction angle of the blazed grating 105, 786nm pulse laser generated by the titanium sapphire crystal 104 enters the blazed grating 105, first-order diffracted light generated after diffraction by the blazed grating 105 is fed back to the titanium sapphire crystal 104 through the grating reflector 107, and zero-order diffracted light generated after diffraction by the blazed grating 105 is output through the output mirror 106.
By adopting the grating component, the invention not only can greatly compress the actual oscillation starting wavelength range, but also can further control the central wavelength position of the narrower oscillation starting spectrum range, and the tuning control of the output light can be realized only by rotating the angle of the grating reflector 107 properly, so that the 786nm pulse laser after passing through the grating component has the advantage of tunable narrow line width, and meanwhile, the final purpose of tunable central wavelength of the 226nm ultraviolet pulse laser can be achieved by tuning the central wavelength of the 786nm pulse laser.
The laser unit 2 provided by the embodiment of the invention comprises: a laser seed source 21, an electro-optical modulator 22 and a second frequency doubling crystal 24; the laser seed source 21 is used for generating 1064nm continuous laser; the electro-optical modulator 22 and the second frequency doubling crystal 24 are sequentially arranged on an emergent light path of the laser seed source 21; the electro-optical modulator 22 is used for converting 1064nm continuous laser into 1064nm pulse laser; the second frequency doubling crystal 24 is used for converting 1064nm pulsed laser light into third pulsed laser light.
As shown in fig. 3, the laser unit 2 is a 532nm laser unit, including: in practical application, the laser seed source 21 is usually a 1064nm continuous semiconductor laser with a single longitudinal mode and a narrow line width, and can generate 1064nm continuous laser with a narrow line width, and the 1064nm continuous laser passes through the electro-optical modulator 22 to obtain 1064nm pulse laser; after the 1064nm pulse laser passes through the second frequency doubling crystal 24, 532nm pulse laser with narrow line width can be obtained.
The 532nm laser unit 2 provided by the embodiment of the invention further comprises: a pulsed laser amplifier 23; the pulse laser amplifier 23 is disposed on the optical path between the electro-optical modulator 22 and the second frequency doubling crystal 24, and is configured to amplify a 1064nm pulse laser.
In practical application, the pulsed laser amplifier 23 can amplify the energy of the 1064nm pulsed laser to make the finally obtained 226nm ultraviolet pulsed laser have higher energy.
The laser provided by the embodiment of the invention also comprises: a control unit 4; the control unit 4 is used for controlling the working states of the pump source 101 and the electro-optical modulator 22 so as to synchronize the second pulse laser and the third pulse laser in time domain.
In practical application, the control unit 4 controls the pumping source 101 and the electro-optical modulator 22 to be simultaneously turned on, so that 393nm pulse laser and 532nm pulse laser can simultaneously enter the sum frequency unit 3, and the 226nm ultraviolet pulse laser is finally obtained by performing nonlinear frequency conversion in the sum frequency unit 3.
According to the embodiments, the invention can generate the narrow-line-width tunable 226nm ultraviolet pulse, and is suitable for optical diagnosis of the hypersonic flow field.
The above embodiments are described in detail, and although the present invention has been described with reference to preferred embodiments, it should be understood that the present invention is not limited thereto, and various changes and modifications can be made by those skilled in the art without departing from the scope of the present invention.
Claims (10)
1. An ultraviolet pulse laser, comprising: the laser comprises a pumping source, and a titanium sapphire crystal, a grating component and a first frequency doubling crystal which are sequentially arranged on an emergent light path of the pumping source;
the laser emitted by the pumping source passes through the titanium sapphire crystal to obtain a first pulse laser;
the grating component is used for compressing the line width of the first pulse laser and tuning the central wavelength of the first pulse laser;
the first frequency doubling crystal is used for converting the first pulse laser into the second pulse laser;
the laser also comprises a laser unit, wherein the laser unit is used for generating third pulse laser;
the laser device further comprises a sum frequency unit, and the sum frequency unit is used for carrying out sum frequency on the second pulse laser and the third pulse laser to obtain fourth pulse laser.
2. The laser of claim 1, wherein the pump source is a 532nm pump source;
the first pulse laser is 786nm pulse laser;
the second pulse laser is 393nm pulse laser;
the third pulse laser is 532nm pulse laser;
the fourth pulse laser is 226nm ultraviolet pulse laser.
3. The laser according to claim 1, further comprising an amplifying part;
the amplifying part is positioned on a light path between the grating component and the first frequency doubling crystal and is used for amplifying the signal of emergent light of the grating component.
4. The laser of claim 3, further comprising a beam splitter;
the beam splitter is arranged on a light path between the pumping source and the titanium sapphire crystal and is used for splitting emergent light of the pumping source into a first laser beam and a second laser beam; the titanium gem crystal is used for converting the first laser beam into the first pulse laser and then injecting the first pulse laser into the grating component;
a first total reflection mirror is arranged on a light path between the grating component and the amplifying component; the first full mirror is used for reflecting the emergent light of the grating assembly to the amplifying part;
the laser further comprises a second fully reflective mirror for reflecting the second laser beam to the amplifying means;
the amplifying part may perform signal amplification on the outgoing light of the first half mirror using the second laser beam.
5. The laser according to claim 1, wherein a third all-reflecting mirror is arranged on an incident light path of the titanium sapphire crystal; an output mirror is arranged on an emergent light path of the grating component;
the third fully reflective mirror and the output mirror form a resonant cavity.
6. The laser of claim 5, wherein the grating assembly comprises: blazed gratings and grating mirrors;
the blazed grating is arranged between the titanium sapphire crystal and the output mirror and is used for compressing the line width of the first pulse laser;
the grating reflector is perpendicular to the first-order diffraction angle of the blazed grating and is used for tuning the central wavelength of the first pulse laser.
7. The laser of claim 3, wherein the amplifying member is an amplifying grade titanium sapphire crystal.
8. The laser of claim 1, wherein the laser unit comprises: the laser seed source, the electro-optical modulator and the second frequency doubling crystal;
the laser seed source is used for generating 1064nm continuous laser;
the electro-optical modulator and the second frequency doubling crystal are sequentially arranged on an emergent light path of the laser seed source;
the electro-optical modulator is used for converting the 1064nm continuous laser into 1064nm pulse laser; the second frequency doubling crystal is used for converting the 1064nm pulsed laser into the third pulsed laser.
9. The laser of claim 8, wherein the laser unit further comprises: a pulsed laser amplifier;
the pulse laser amplifier is arranged on a light path between the electro-optical modulator and the second frequency doubling crystal and used for amplifying signals of the 1064nm pulse laser.
10. The laser of claim 1, further comprising: a control unit;
the control unit is used for controlling the working states of the pumping source and the electro-optical modulator so as to synchronize the second pulse laser and the third pulse laser in time domain.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911268285 | 2019-12-11 | ||
| CN2019112682856 | 2019-12-11 |
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| CN111146670A true CN111146670A (en) | 2020-05-12 |
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Citations (7)
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| JP2000275107A (en) * | 1999-03-26 | 2000-10-06 | Kanagawa Acad Of Sci & Technol | Method for measuring laser frequency, method for controlling laser frequency and laser beam generator |
| CN101132105A (en) * | 2007-09-07 | 2008-02-27 | 北京工业大学 | Continuously-tuning full solid state ultraviolet laser |
| CN102324689A (en) * | 2011-08-25 | 2012-01-18 | 中国科学院理化技术研究所 | Device for generating narrow-linewidth deep ultraviolet laser by direct frequency doubling |
| CN102570311A (en) * | 2012-02-24 | 2012-07-11 | 哈尔滨工业大学 | Tunable narrow-band UV laser generating device and generating method therefor |
| CN105529604A (en) * | 2016-02-26 | 2016-04-27 | 昂纳信息技术（深圳）有限公司 | Pump-sharing optical fiber amplifier |
| CN208862362U (en) * | 2018-09-18 | 2019-05-14 | 深圳市杰普特光电股份有限公司 | Controllable passive Q-adjusted green (light) laser |
| CN110277726A (en) * | 2019-07-11 | 2019-09-24 | 长春新产业光电技术有限公司 | A kind of acousto-optic Q modulation ultraviolet laser |
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2019
- 2019-12-23 CN CN201911336164.0A patent/CN111146670A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000275107A (en) * | 1999-03-26 | 2000-10-06 | Kanagawa Acad Of Sci & Technol | Method for measuring laser frequency, method for controlling laser frequency and laser beam generator |
| CN101132105A (en) * | 2007-09-07 | 2008-02-27 | 北京工业大学 | Continuously-tuning full solid state ultraviolet laser |
| CN102324689A (en) * | 2011-08-25 | 2012-01-18 | 中国科学院理化技术研究所 | Device for generating narrow-linewidth deep ultraviolet laser by direct frequency doubling |
| CN102570311A (en) * | 2012-02-24 | 2012-07-11 | 哈尔滨工业大学 | Tunable narrow-band UV laser generating device and generating method therefor |
| CN105529604A (en) * | 2016-02-26 | 2016-04-27 | 昂纳信息技术（深圳）有限公司 | Pump-sharing optical fiber amplifier |
| CN208862362U (en) * | 2018-09-18 | 2019-05-14 | 深圳市杰普特光电股份有限公司 | Controllable passive Q-adjusted green (light) laser |
| CN110277726A (en) * | 2019-07-11 | 2019-09-24 | 长春新产业光电技术有限公司 | A kind of acousto-optic Q modulation ultraviolet laser |
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Application publication date: 20200512 |