CN108418089A - A kind of high power single longitudinal mode mixes holmium solid state laser - Google Patents
A kind of high power single longitudinal mode mixes holmium solid state laser Download PDFInfo
- Publication number
- CN108418089A CN108418089A CN201810456643.5A CN201810456643A CN108418089A CN 108418089 A CN108418089 A CN 108418089A CN 201810456643 A CN201810456643 A CN 201810456643A CN 108418089 A CN108418089 A CN 108418089A
- Authority
- CN
- China
- Prior art keywords
- bragg grating
- volume bragg
- vbg1
- solid state
- reflective volume
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H01S3/105—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
- H01S3/1055—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length one of the reflectors being constituted by a diffraction grating
-
- 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
- H01S3/105—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
The invention discloses a kind of high power single longitudinal modes to mix holmium solid state laser, and the first pumping source and the second pumping source are located at Ho:YAG ceramics both lateral sides, Ho:The first reflective volume Bragg grating VBG1 is placed on the right of YAG ceramics longitudinal outputs light path, in the laser normal incidence to the second reflective volume Bragg grating VBG2 of first reflective volume Bragg grating VBG1 reflections, Ho is reflected back using the first reflective volume Bragg grating VBG1 by the normal reflection of the second reflective volume Bragg grating VBG2:The longitudinal output light path of YAG ceramics, makes the reflectance spectrum of two VBG have overlapping, Ho:Place output coupling mirror in the left side of YAG ceramics longitudinal output light paths.The beneficial effects of the invention are as follows the laser of output to have relatively narrow line width, realizes single longitudinal mode output, and high power operating may be implemented.
Description
Technical field
The invention belongs to field of laser device technology, are related to a kind of high power single longitudinal mode Ho:YAG ceramic lasers.
Background technology
The zlasing mode of single-mode laser output is both single longitudinal mode and single transverse mode.Single longitudinal mode refers to only single in resonant cavity
One longitudinal mode (single-frequency) is vibrated, and single transverse mode is also known as fundamental transverse mode, refers to that light intensity is distributed as Gauss point on light cross section
Cloth.The advantages of single-mode laser is no mode competition, and the stability of laser, coherence and beam quality are all fine.Interfering
The multiple fields such as rainbow holography, precise laser spectrum, laser radar, nonlinear frequency conversion, laser medicine, which have, widely answers
With.
There are many method for generating single longitudinal mode output, and main method has：1, short cavity regular way, shortening Resonant Intake System makes longitudinal mode spacing
More than gain curve；2, prism or optical grating constitution dispersion chamber are added in resonant cavity, makes only a certain specific frequency for dispersion cell method
Longitudinal mode can vibrate；3, Method of Etalon is inserted into the suitable etalon of a parameter in resonant cavity, and only single longitudinal mode is enable to lead to
Cross etalon oscillation；4, optical filter method is inserted into a birefringent filter in intracavitary, makes to be more than by the light frequency interval of optical filter
Gain line width.The main method for obtaining single transverse mode is to take appropriate measures to inhibit high-order transverse mode, ensures that only base is horizontal in resonant cavity
Mould can vibrate.Such as add people's aperture in intracavitary, reduce chamber Fresnel number and soft-sided is used using unsteady cavity or critical resonator
Light bar or soft-sided speculum etc..Single-mode output is obtained using the method for short cavity length, gain media can be made to be limited in the length of very little
Degree, and then limit the output power of laser；And chamber length is too short, and laser beam quality is easily caused to deteriorate, stability becomes
Difference.Single mode is generated using the methods of dispersion cell method, Method of Etalon and optical filter method, the structure of laser can be made to become complicated, damage
Consumption is big, and overall efficiency is not high.
In order to inhibit the generation of higher order mode, stable single longitudinal mode is maintained to export, the output of previous single longitudinal mode laser
Luminous power mostly maintains laser works Near Threshold；In order to obtain high-power single longitudinal mode laser, majority uses light and puts
Big mode increases the complexity and cost of system.If it is desired to the single longitudinal mode laser output that high power is stablized is obtained, it is existing
Technology has been difficult to realize or manufacturing cost increases severely.
Invention content
The purpose of the present invention is to provide a kind of high power single longitudinal modes to mix holmium solid state laser, the beneficial effects of the invention are as follows
Two VBG are used in combination, the laser of output has relatively narrow line width, then realizes Dan Zong by shortening the method for chamber length again
Mould exports, and high power operating may be implemented.
The technical solution adopted in the present invention is by pumping source, mixes holmium solid state gain medium Ho:YAG ceramics, two reflections
Formula volume Bragg grating (volume Bragg grating, hereinafter referred to as VBG) and output coupling mirror composition.First pumping
Source, the second pumping source, Ho:YAG ceramics, the first reflective volume Bragg grating VBG1, the second reflective volume Bragg grating
VBG2 and output coupling mirror；First pumping source and the second pumping source are located at Ho:YAG ceramics both lateral sides, Ho:YAG ceramics are longitudinal
The first reflective volume Bragg grating VBG1 is placed on the right of output light path, the first reflective volume Bragg grating VBG1 reflections swash
In light normal incidence to the second reflective volume Bragg grating VBG2, pass through the normal reflection of the second reflective volume Bragg grating VBG2
It is reflected back Ho using the first reflective volume Bragg grating VBG1:The longitudinal output light path of YAG ceramics, to realize that first is anti-
The angle tuning mode for penetrating the reflective volume Bragg grating VBG2 of formula volume Bragg grating VBG1 and second, makes the reflection of two VBG
Spectrum has overlapping, Ho:Place output coupling mirror in the left side of YAG ceramics longitudinal output light paths.
Further, profile pump is carried out using the first pumping source and the second pumping source and mixes holmium solid state gain medium Ho:YAG makes pottery
Porcelain, Ho:After YAG ceramics absorb the first pumping source and the energy of the second pumping source radiation, population inversion distribution, Ho are formed3+From
Son is in energy level5I8~5I7Between transition, generate the stimulated radiation of 2.1 micron waveband ranges, amplify by the oscillation of resonant cavity
Stable laser is formed, in Ho:Output coupling mirror is placed on the left side of YAG ceramics longitudinal output light paths, and the first reflection is placed on the right
Formula volume Bragg grating VBG1 adjusts the angle A of the first reflective volume Bragg grating VBG1, the laser normal incidence for making it reflect
Onto broadband medium film high reflection mirror, tunable Ho is formed:YAG solid state lasers, make Ho:YAG ceramic laser output wavelengths
Near 2090nm, the first reflective volume Bragg grating VBG1 is fixed, takes broadband medium film high reflection mirror away, with the second reflection
Formula volume Bragg grating VBG2 is substituted, and the normal reflection by the second reflective volume Bragg grating VBG2 is reflective using first
Volume Bragg grating VBG1 is reflected back original optical path, to realize the first reflective reflective bodies of volume Bragg grating VBG1 and second
The angle tuning mode of Bragg grating VBG2, makes the reflectance spectrum of two VBG have overlapping near 2090nm, reaches to narrow and mixes holmium
The purpose of the output laser linewidth of solid state laser, then shorten laser resonator cavity length and realize single longitudinal mode laser from output coupling
Mirror exports.
Further, the first pumping source and the second pumping source are semiconductor laser, output wavelength 1908nm.
Further, holmium solid gain matrix Ho is mixed:The Ho of YAG ceramics3+A concentration of 1.0at.% of ion doping, sectional area are
2×3mm2, length 8mm, Ho:YAG ceramics are cooled down using the heat sink mode of copper, are inhibited to Ho:The thermal damage of YAG ceramics.
Further, in the reflection of the first reflective reflective volume Bragg grating VBG2 of volume Bragg grating VBG1 and second
Cardiac wave length is respectively 2102.00nm and 2090.25nm, and half-wave bandwidth (FWHM) is respectively smaller than 1.0nm and 0.5nm, thickness difference
For 6.52mm and 12.01mm, plane of incidence size is respectively 9.0 × 7.5mm2With 8 × 6mm2。
Further, output coupling mirror is plano-concave mirror, and radius of curvature 100mm is high anti-in 1900-1950nm wave-length coverages,
It is 5% in the transmitance of 2050-2150nm wave-length coverages.
Further, broadband medium film high reflection mirror is parallel plane mirror, high anti-in 1900nm-1950nm wave-length coverages,
It is also high anti-in 2050nm-2150nm wave-length coverages.
The present invention is that the reflectance spectrum of multiple VBG partly overlaps by way of using angle tuning to multiple VBG, from
And the spectral width for mixing the output of thulium solid state laser is controlled, achieve the purpose that further to narrow and mixes thulium solid state laser line width, this
Sample can be controlled flexibly in resonator long side.
Description of the drawings
Fig. 1 tunable solid laser experimental provision schematic diagrams；
Fig. 2 Dan Zong mix thulium solid state laser experimental provision schematic diagram；
Fig. 3 Ho:The fluorescence spectrum of YAG ceramics.
In figure, 1. first pumping sources, 2. second pumping sources, 3.Ho:YAG ceramics, 4. first reflective volume Bragg gratings
VBG1,5. second reflective volume Bragg grating VBG2,6. output coupling mirrors, 7. broadband medium film high reflection mirrors.
Specific implementation mode
The present invention is described in detail With reference to embodiment.
It is as depicted in figs. 1 and 2 that high power single longitudinal mode of the present invention mixes holmium solid state laser, including the first pumping source (1), second
Pumping source (2), Ho:YAG ceramics (3), the first reflective volume Bragg grating VBG1 (4), the second reflective volume Bragg grating
VBG2 (5) and output coupling mirror (6)；First pumping source (1) and the second pumping source (2) are located at Ho:YAG ceramics (3) both lateral sides,
Ho:The first reflective volume Bragg grating VBG1 (4) is placed on the right of YAG ceramics (3) longitudinal output light paths, in Ho:YAG ceramics
(3) output coupling mirror (6) is placed on the left side of longitudinal output light path, and the first reflective volume Bragg grating VBG1 (4) is placed on the right,
The angle A for adjusting the first reflective volume Bragg grating VBG1 (4) keeps the laser normal incidence that it is reflected high anti-to broadband medium film
It penetrates on mirror (7), forms tunable Ho:YAG solid state lasers, make Ho:YAG ceramic laser output wavelengths near 2090nm,
The first reflective volume Bragg grating VBG1 (4) is fixed, takes broadband medium film high reflection mirror (7) away, with the second reflective body cloth
Glug grating VBG2 (5) is substituted, and the laser normal incidence of the first reflective volume Bragg grating VBG1 (4) reflection is reflective to second
On volume Bragg grating VBG2 (5), by the normal reflection of the second reflective volume Bragg grating VBG2 (5) using the first reflection
Formula volume Bragg grating VBG1 (4) is reflected back Ho:The longitudinal output light path of YAG ceramics (3), to realize the first reflective body cloth
The angle tuning mode of the reflective volume Bragg grating VBG2 (5) of glug grating VBG1 (4) and second, makes the reflected light of two VBG
Spectrum has overlapping near 2090nm.Achieve the purpose that narrow and mix the output laser linewidth of holmium solid state laser, then shortens laser
Cavity length realizes that single longitudinal mode laser is exported from output coupling mirror (6).This design is since the insertion loss of VBG is small, Ke Yi
It is operated under high power.
Volume Bragg grating is made by a kind of Photothermal refraction rate glass of particular components, and absolute diffraction efficiency is more than
99%, temperature stability is up to 400 DEG C, and insertion loss is small.The tolerance irradiated to continuous wave laser near infrared region is at least
Tens thousand of watts up to every square centimeter, under the pulsed laser radiation that wavelength is 1064nm, pulsewidth is 8ns, damage threshold is about
40J/cm2.It is very small that volume Bragg grating refractive index varies with temperature coefficient, about dn/dt=5 × 10-8/ K corresponds to temperature
It often increases once, Bragg wavelength drift 7pm；For fusion temperature close to 1000 DEG C, it is very high which results in volume Bragg gratings
Temperature stability.This volume Bragg grating provides narrow spectrum, and most down to 20pm, narrow angle Selection minimum is up to 100 μ rad.
Using two volume Bragg gratings as Ho:The Input coupling mirror of YAG ceramic lasers, and serve as the output that narrows and swash
The effect of optical linewidth needs first since the reflection wavelength for testing two VBG used is different by longer wavelengths of VBG1
The reflection wavelength of (2102.00nm) be tuned to VBG2 positive feedback wavelength (2090.25nm) near, each in experimental provision
The angle of reflection of VBG can be independently tuned, due to Ho:The gain of YAG ceramics compared with strength near 2090nm, such as Fig. 3
It is shown.VBG1 first, is tuned a small angle A, and combine with broadband medium film high reflection mirror by we in the following ways
At backfeed loop, make output wavelength near 2090nm, and optimizes output laser power to highest, fixed VBG1；Then it takes away
Broadband medium film high reflection mirror, is substituted with VBG2, and VBG2 and VBG1 is made to form positive feedback, the reflectance spectrum overlapping of two VBG.It answers
This is narrowed with double VBG after technology, and the output spectrum of laser will greatly be narrowed.Recycle rational laser resonant cavity
Chamber is long, can obtain single longitudinal mode output.And the insertion loss by verification experimental verification VBG is very small, can transport at high power
Turn.
The present invention is using two volume Bragg gratings as resonant cavity mirror.Requirement to two gratings is：It is reflected
Wavelength be in and mix in the fluorescence spectras of Tm solid state gain mediums and pass through tuning and can get identical reflection wavelength.This hair
Two VBG wavelength are respectively 2090.25nm and 2102.00nm used by bright, and diffraction efficiency is all higher than 99%, spectral width
(FWHM) 0.5nm and 1.0nm are respectively smaller than.In described below, the VBG that wavelength is 2061.00nm is called VBG1, wavelength by we
2090.25nm's is known as VBG2.By changing the incident angle of VBG2, its reflection wavelength can be adjusted near 2090.25nm.
The high power single longitudinal mode laser of design, including pumping source, Ho:YAG ceramics, two reflective volume Bragg gratings, export coupling
Close mirror.The present invention to VBG2 mainly, using by way of angle tuning, making the reflectance spectrum of itself and VBG1 partly overlap, reaching
Narrow Ho:The purpose of YAG ceramic laser output linewidths, makes the line width of output wavelength be limited to less than the width of more than ten of micromicron
Within, then by selecting resonant cavity of solid state laser length appropriate, so that it may to realize that stable single longitudinal mode exports.The present invention is suitable
The tunable operation of high power single mode for solid, optical fiber and other multiple types lasers.
The present invention makes reflection wavelength corresponding to two VBG simultaneously using two VBG as resonator surface reflecting element
Starting of oscillation makes the reflectance spectrum of two VBG partly overlap, reaches the Ho that narrows:The purpose of YAG ceramic laser output linewidths, this hair
It is bright to be limited to less than the line width of laser output wavelength within the width of more than ten of micromicron；And select solid state laser appropriate
Cavity length, so that it may which to realize that stable single longitudinal mode exports, and experiments verify that the insertion loss of VBG is smaller, so this swashs
Light device is suitable for high power operation.
The above is only the better embodiment to the present invention, not makees limit in any form to the present invention
System, every any simple modification that embodiment of above is made according to the technical essence of the invention, equivalent variations and modification,
Belong in the range of technical solution of the present invention.
Claims (8)
1. a kind of high power single longitudinal mode mixes holmium solid state laser, it is characterised in that：Including the first pumping source, the second pumping source, Ho:
YAG ceramics, the first reflective volume Bragg grating VBG1, the second reflective volume Bragg grating VBG2 and output coupling mirror；The
One pumping source and the second pumping source are located at Ho:YAG ceramics both lateral sides, Ho:First is placed on the right of YAG ceramics longitudinal outputs light path
The laser normal incidence of reflective volume Bragg grating VBG1, the first reflective volume Bragg grating VBG1 reflections are reflective to second
On volume Bragg grating VBG2, by the normal reflection of the second reflective volume Bragg grating VBG2 using the first reflective body cloth
Glug grating VBG1 is reflected back Ho:The longitudinal output light path of YAG ceramics, to realize the first reflective volume Bragg grating VBG1
With the angle tuning mode of the second reflective volume Bragg grating VBG2, the reflectance spectrum of two VBG is made to have overlapping, Ho:YAG ceramics
Place output coupling mirror in the left side of longitudinal output light path.
2. mixing holmium solid state laser according to a kind of high power single longitudinal mode described in claim 1, it is characterised in that：Using described first
Pumping source and the second pumping source carry out profile pump and mix holmium solid state gain medium Ho:YAG ceramics, Ho:YAG ceramics absorb the first pump
After the energy of Pu source and the second pumping source radiation, population inversion distribution, Ho are formed3+Ion is in energy level5I8~5I7Between transition,
The stimulated radiation for generating 2.1 micron waveband ranges is forming stable laser, in Ho by the oscillation amplification of resonant cavity:YAG makes pottery
Output coupling mirror is placed on the left side of porcelain longitudinal output light path, and the first reflective volume Bragg grating VBG1 is placed on the right, adjusts the
The angle A of one reflective volume Bragg grating VBG1, make its reflect laser normal incidence to broadband medium film high reflection mirror on, group
At tunable Ho:YAG solid state lasers, make Ho:YAG ceramic laser output wavelengths fix the first reflection near 2090nm
Formula volume Bragg grating VBG1 takes broadband medium film high reflection mirror away, is substituted, is led to the second reflective volume Bragg grating VBG2
The normal reflection for crossing the second reflective volume Bragg grating VBG2 is reflected back original using the first reflective volume Bragg grating VBG1
Light path, to realize the angle tuning of the first reflective reflective volume Bragg grating VBG2 of volume Bragg grating VBG1 and second
Mode makes the reflectance spectrum of two VBG have overlapping near 2090nm, reaches to narrow and mixes the output laser linewidth of holmium solid state laser
Purpose, then shorten laser resonator cavity length realize single longitudinal mode laser from output coupling mirror export.
3. mixing holmium solid state laser according to a kind of high power single longitudinal mode described in claim 1, it is characterised in that：First pumping
Source and the second pumping source are semiconductor laser, output wavelength 1908nm.
4. mixing holmium solid state laser according to a kind of high power single longitudinal mode described in claim 1, it is characterised in that：The holmium of mixing is consolidated
Body gain matrix Ho:The Ho of YAG ceramics3+A concentration of 1.0at.% of ion doping, sectional area are 2 × 3mm2, length 8mm, Ho:
YAG ceramics are cooled down using the heat sink mode of copper, are inhibited to Ho:The thermal damage of YAG ceramics.
5. mixing holmium solid state laser according to a kind of high power single longitudinal mode described in claim 1, it is characterised in that：First reflection
The reflection kernel wavelength of the reflective volume Bragg grating VBG2 of formula volume Bragg grating VBG1 and second be respectively 2102.00nm and
2090.25nm, half-wave bandwidth (FWHM) are respectively smaller than 1.0nm and 0.5nm, and thickness is respectively 6.52mm and 12.01mm, the plane of incidence
Size is respectively 9.0 × 7.5mm2With 8 × 6mm2。
6. mixing holmium solid state laser according to a kind of high power single longitudinal mode described in claim 1, it is characterised in that：The output coupling
Mirror is plano-concave mirror, and radius of curvature 100mm is high anti-in 1900-1950nm wave-length coverages, in 2050-2150nm wave-length coverages
Transmitance is 5%.
7. mixing holmium solid state laser according to a kind of high power single longitudinal mode described in claim 1, it is characterised in that：The broadband medium
Film high reflection mirror is parallel plane mirror, high anti-in 1900nm-1950nm wave-length coverages, in 2050nm-2150nm wave-length coverages
Also high anti-.
8. mixing holmium solid state laser according to a kind of high power single longitudinal mode described in claim 1, it is characterised in that：By to multiple
VBG is that the reflectance spectrum of multiple VBG partly overlaps by the way of angle tuning, to which the output of thulium solid state laser is mixed in control
Spectral width, achieve the purpose that further to narrow and mix thulium solid state laser line width, in this way in resonator long side
Flexibly control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456643.5A CN108418089A (en) | 2018-05-14 | 2018-05-14 | A kind of high power single longitudinal mode mixes holmium solid state laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456643.5A CN108418089A (en) | 2018-05-14 | 2018-05-14 | A kind of high power single longitudinal mode mixes holmium solid state laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108418089A true CN108418089A (en) | 2018-08-17 |
Family
ID=63139325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810456643.5A Pending CN108418089A (en) | 2018-05-14 | 2018-05-14 | A kind of high power single longitudinal mode mixes holmium solid state laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108418089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969402A (en) * | 2020-07-31 | 2020-11-20 | 山东师范大学 | Intermediate infrared narrow linewidth solid pulse laser applied to trolley and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101039012A (en) * | 2006-12-27 | 2007-09-19 | 中国科学院上海光学精密机械研究所 | Thulium and holmium double-doped lutetium lithium fluoride crystal laser for laser diode side pumping |
| CN101859974A (en) * | 2010-06-12 | 2010-10-13 | 徐州师范大学 | Narrow linewidth thulium-doped fiber laser |
| CN208368939U (en) * | 2018-05-14 | 2019-01-11 | 南京晓庄学院 | A kind of high power single longitudinal mode mixes holmium solid state laser |
-
2018
- 2018-05-14 CN CN201810456643.5A patent/CN108418089A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101039012A (en) * | 2006-12-27 | 2007-09-19 | 中国科学院上海光学精密机械研究所 | Thulium and holmium double-doped lutetium lithium fluoride crystal laser for laser diode side pumping |
| CN101859974A (en) * | 2010-06-12 | 2010-10-13 | 徐州师范大学 | Narrow linewidth thulium-doped fiber laser |
| CN208368939U (en) * | 2018-05-14 | 2019-01-11 | 南京晓庄学院 | A kind of high power single longitudinal mode mixes holmium solid state laser |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969402A (en) * | 2020-07-31 | 2020-11-20 | 山东师范大学 | Intermediate infrared narrow linewidth solid pulse laser applied to trolley and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Astapovich et al. | Watt-Level Nanosecond 4.42-$\mu $ m Raman Laser Based on Silica Fiber | |
| US5050179A (en) | External cavity semiconductor laser | |
| Kopp et al. | Large coherence area thin-film photonic stop-band lasers | |
| WO2015106606A1 (en) | Tunable narrow-linewidth single-frequency linear-polarization laser device | |
| JP6640733B2 (en) | Mid-infrared Kerr-lens mode-locked laser with polycrystalline TM: II-VI material for normal incidence mounting and method for controlling parameters of polycrystalline TM: II-VI kerr-lens mode-locked laser | |
| Xu et al. | Terahertz metasurface quantum-cascade VECSELs: Theory and performance | |
| JPH10506724A (en) | Tunable blue laser diode | |
| Danielewicz et al. | Hybrid output mirror for optically pumped far infrared lasers | |
| CN104868358B (en) | Visible light wave range multi-wavelength adjustable type solid Roman laser | |
| CN101859975A (en) | Dual-wavelength tunable thulium-doped fiber laser | |
| Moskalev et al. | Highly efficient, narrow-linewidth, and singlefrequency actively and passively Q-switched fiber-bulk hybrid Er: YAG lasers operating at 1645 nm | |
| CN208368939U (en) | A kind of high power single longitudinal mode mixes holmium solid state laser | |
| He et al. | Simultaneous cw red, yellow, and green light generation,“traffic signal lights,” by frequency doubling and sum-frequency mixing in an aperiodically poled LiTaO 3 | |
| CN108418089A (en) | A kind of high power single longitudinal mode mixes holmium solid state laser | |
| CN102332676A (en) | Mid-infrared fiber laser | |
| Ma et al. | Continuous-wave yellow laser generation at 578 nm by intracavity sum-frequency mixing of thin disk Yb: YAG laser and Nd: YAG laser | |
| JP6542874B2 (en) | Method and apparatus for generating cavity enhanced broadband intrapulse difference frequency | |
| CN115473118A (en) | Wide-temperature-range stable all-solid-state laser and frequency-doubled laser | |
| CN105006734B (en) | A kind of 2 μm of lasers that half Intracavity OPO is formed based on body grating | |
| CN105449520A (en) | Wavelength-tunable red laser and wavelength tuning method | |
| CN105322429A (en) | Semiconductor laser end plane pumping Er: YSGG electro-optical Q-switched laser | |
| RU2177665C2 (en) | Internally radiation-frequency doubling solid-state laser | |
| Vorholt et al. | Single-frequency oscillation of thin-disk lasers due to phase-matched pumping | |
| CN111313231B (en) | Vertical cavity surface emitting laser and control method and control device thereof | |
| US5150374A (en) | Method of fabricating a waveguide optical resonant cavity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200813 Address after: 303 room 327, ten Zi Zi street, Suzhou, Jiangsu, 215006 Applicant after: SUZHOU SOLAR TECHNOLOGY Co.,Ltd. Address before: No. 3601 Jiangning Road, Nanjing District hirokage 211171 cities in Jiangsu Province Applicant before: NANJING XIAOZHUANG University |