CN111180987A - Orthogonal polarization dual-wavelength laser with adjustable power proportion - Google Patents
Orthogonal polarization dual-wavelength laser with adjustable power proportion Download PDFInfo
- Publication number
- CN111180987A CN111180987A CN202010023989.3A CN202010023989A CN111180987A CN 111180987 A CN111180987 A CN 111180987A CN 202010023989 A CN202010023989 A CN 202010023989A CN 111180987 A CN111180987 A CN 111180987A
- Authority
- CN
- China
- Prior art keywords
- laser
- raman
- wavelength
- polarization
- crystal
- 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.)
- Granted
Links
Images
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
- H01S3/05—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
- H01S3/08086—Multiple-wavelength emission
- H01S3/0809—Two-wavelenghth emission
-
- 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
-
- 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
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
-
- 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
- H01S3/30—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The invention discloses an orthogonal polarization dual-wavelength laser with adjustable power proportion, wherein linearly polarized fundamental laser enters a Raman crystal through the focusing of a coupling focusing system to provide Raman gain, and when the Raman gain is greater than the loss of a Stokes light resonant cavity, Stokes light is formed to oscillate in the cavity and is output. The Raman crystal has different Raman main peak frequency shifts in different polarization directions, when the polarization direction of the fundamental frequency light is not parallel to the main axis of the crystal, orthogonal polarization dual-wavelength laser output is obtained, the polarization direction of the incident linear polarization fundamental frequency laser is controlled by a half-wave plate, the proportion of two polarization components of the fundamental frequency light in the main axis direction of the crystal is changed, and the simple adjustment of the proportion of the orthogonal polarization dual-wavelength output power is realized.
Description
Technical Field
The invention relates to the field of lasers, in particular to an orthogonal polarization dual-wavelength laser with adjustable power proportion.
Background
The dual-wavelength laser with similar wavelength and mutually orthogonal polarization directions has important application in the fields of nonlinear optical frequency conversion, laser radar and the like. The current cross-polarization dual-wavelength laser mostly adopts the combination of two same or two laser crystals with different emission peak wavelengths in two polarization directions, such as Nd: YLF (neodymium-doped yttrium lithium fluoride)[1]Or Nd: YAP (neodymium-doped yttrium aluminate)[2]And the two wavelengths are combined/split by polarization devices such as a polarization beam splitting prism or a polarization beam splitting plate in the cavity, so that a beam combining part and a beam splitting part for phase separation of the dual-wavelength resonant cavity are constructed.
The method generally needs two sets of pumping sources, the cost is higher, and the optical path of the system is complex; polarization beam splitting and beam combining in a laser resonant cavity are involved, and the risk of damage to devices is high; the stimulated emission cross sections of the two laser crystals at two wavelengths are different, so that the difficulty of the time synchronization of the dual-wavelength laser pulse is high. If the power ratio of two wavelengths in the dual-wavelength laser output needs to be adjusted, the pump power emitted by the two sets of pump sources can be adjusted, the two sets of pump sources are dependent on mutually independent pump sources, and the cost is high.
Other methods such as double crystal OPO (optical parametric oscillation) can also achieve the selection of the parametric optical wavelength by phase matching angle design[3]And the dual-wavelength laser output is obtained, but the range of the output wavelength which can be realized is limited by the phase matching condition, and the wavelength stability is sensitive to the temperature, so that the application is limited.
Reference to the literature
[1]Jing Zhang,HuiLong Liu,Jing Xia,and Xihong Fu,Orthogonallypolarized dual-wavelength Nd:YLiF4laser,Chin.Opt.Lett.13,031402(2015).
[2]Yanfei Lü,Jing Xia,Jing Zhang,Xihong Fu,and Huilong Liu,Orthogonally polarized dual-wavelength Nd:YAlO3 laser at 1341 and 1339nm andsum-frequency mixing for an emission at 670nm,Appl.Opt.53,5141-5146(2014).
[3]G.K.Samanta,and M.Ebrahim-Zadeh,Dual-wavelength,two-crystal,continuous-wave,optical parametric oscillator,Optics Letters,36,3033(2011).
Disclosure of Invention
The invention provides an orthogonal polarization dual-wavelength laser with adjustable power proportion, which utilizes different Raman main peak frequency shifts in different polarization directions of potassium gadolinium tungstate (KGW) crystals to realize orthogonal polarization dual-wavelength laser output with similar wavelengths, and the power proportion of dual-wavelength laser can be conveniently adjusted, thereby overcoming the defects of complex system, high damage risk, difficulty in time synchronization and the like of the traditional dual-wavelength laser, and the detailed description is as follows:
an adjustable power-ratio dual orthogonal-polarization wavelength laser, the dual wavelength laser comprising: a fundamental frequency laser light source, a coupling focusing system, a half-wave plate, a Stokes light resonant cavity and a Raman crystal,
the linearly polarized fundamental laser enters the Raman crystal through the focusing of the coupling focusing system to provide Raman gain, and when the Raman gain is larger than the loss of the Stokes light resonant cavity, the Stokes light is formed to oscillate in the cavity and output;
the Raman crystal has different Raman main peak frequency shifts in different polarization directions, when the polarization direction of the fundamental frequency light is not parallel to the main axis of the crystal, orthogonal polarization dual-wavelength laser output is obtained, the polarization direction of the incident linear polarization fundamental frequency laser is controlled by a half-wave plate, the proportion of two polarization components of the fundamental frequency light in the main axis direction of the crystal is changed, and the adjustment of the proportion of the orthogonal polarization dual-wavelength output power is realized.
Further, the air conditioner is provided with a fan,
the coupling focusing system is plated with a fundamental frequency laser antireflection film and consists of 1 or more lenses;
the working wavelength of the half-wave plate is fundamental frequency laser wavelength, and a fundamental frequency laser antireflection film is plated on the half-wave plate;
the Raman resonant cavity comprises an input mirror, a Stokes light output mirror or a plurality of cavity mirrors.
The input mirror is plated with a fundamental frequency laser antireflection and Raman Stokes light high-reflection film system, the Stokes light output mirror is plated with a Stokes light partial reflection film, and other cavity mirrors are plated with Stokes light high-reflection films; the Raman crystal is plated with fundamental frequency laser and a Stokes high-transmittance film system.
Preferably, the fundamental frequency laser light source is a solid laser, or a fiber laser, and the wavelength is 1064nm, or other wavelengths in the raman crystal pass band.
Preferably, the raman crystal is a crystal in which the raman main peak frequency shifts differ in the two polarization directions.
Preferably, the fundamental frequency laser light source is: continuous wave, modulation, Q-switched pulse and mode-locked pulse.
In the specific implementation, KGW nonlinear crystals are selected as the Raman crystals. The KGW-type crystal is a biaxial crystal, and the three principal axes are a Nm axis, an Ng axis, and an Np axis, respectively. When a crystal cut in the Np direction is used, the frequency shifts of the Raman peaks corresponding to the optical fields with polarization directions along the Nm and Ng axes are 901cm, respectively-1And 768cm-1And thus the stokes light wavelengths in the corresponding two polarization directions are also different.
For example: when the wavelength of the fundamental laser is 1064Nm, if the polarization direction is along the Nm axis when the fundamental laser is incident on the KGW crystal, the wavelength of the Stokes light is 1176Nm, and if the polarization direction is along the Ng axis when the fundamental laser is incident on the KGW crystal, the wavelength of the Stokes light is 1159 Nm.
Therefore, the polarization direction of the fundamental laser light is adjusted by the half-wave plate, and when the polarization direction of the fundamental laser light is not parallel to the Nm axis and the Ng axis, the linearly polarized fundamental laser light is decomposed into two components polarized along the Nm axis and the Ng axis in the KGW crystal, and Raman gains in the respective polarization directions and corresponding Raman frequency shift wavelengths, namely orthogonally polarized 1176Nm and 1159Nm Stokes light, are respectively generated.
On the basis, the polarization direction of the fundamental frequency laser is adjusted through the half-wave plate, so that the proportion of polarization components decomposed by the fundamental frequency laser along the Nm axis and Ng axis directions of the KGW crystal can be controlled, and the effect of adjusting the power proportion output by the orthogonal polarization dual-wavelength laser is realized.
The technical scheme provided by the invention has the beneficial effects that:
1) the invention provides a novel method for generating orthogonal polarization dual-wavelength laser output, overcomes the dependence of the conventional orthogonal polarization dual-wavelength laser on a dual-path pump source, and has compact structure and economic cost;
2) in the dual-wavelength laser provided by the invention, the power proportion of the dual-wavelength laser can be adjusted only by adjusting the polarization direction of the fundamental laser through the half-wave plate;
3) the invention realizes dual-wavelength operation through different frequency shifts of Raman peaks in different polarization directions of the Raman crystal, and compared with methods for realizing dual-wavelength laser output such as dual-wavelength OPO and the like, the method is not limited by phase matching conditions, has better resistance to temperature drift, can realize output in the whole light-transmitting wave band of the Raman crystal, and has wider wavelength selection range;
4) the dual-wavelength laser is generated based on Raman crystal Stimulated Raman Scattering (SRS), the SRS process has the excellent characteristics of beam purification, spectrum purification, pulse narrowing and the like, and better beam quality, narrower spectral line width and shorter pulse width are easy to realize.
Drawings
FIG. 1 is a schematic structural diagram of an orthogonal polarization dual-wavelength laser with adjustable power ratio according to the present invention;
fig. 2 is another schematic structural diagram of an orthogonal polarization dual-wavelength laser with adjustable power ratio according to the present invention.
In fig. 1, the list of components represented by the various reference numbers is as follows:
1: a fundamental frequency laser light source; 2: a focusing lens;
3: a half-wave plate; 4-1: a stokes optical resonant cavity input mirror;
4-2: a stokes optical resonator output mirror; 5: raman crystals (illustrated by KGW).
In fig. 2, the list of components represented by the various reference numbers is as follows:
1: a fundamental frequency laser light source; 2: a focusing lens;
3: a half-wave plate; 4-1: a stokes optical resonant cavity input mirror;
4-2: a stokes optical resonator output mirror; 4-3: a Stokes light resonant cavity total reflection mirror;
5: raman crystals (KYW is exemplified).
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below.
Example 1:
the embodiment of the invention provides an orthogonal polarization dual-wavelength laser with adjustable power proportion, which comprises: a fundamental frequency laser light source 1, a focusing lens 2, a half-wave plate 3, a Stokes light resonant cavity input mirror 4-1, a Stokes light resonant cavity output mirror 4-2 and a Raman crystal KGW 5;
wherein, the fundamental frequency laser light source 1 is a Q-switched pulse Nd: YVO4A laser with a wavelength of 1064nm and linear polarization; the focal length of the focusing lens 2 is 100mm, and a 1064nm antireflection film is plated; the working wavelength of the half-wave plate 3 is 1064nm, and a 1064nm antireflection film is plated; the Stokes light resonant cavity input mirror 4-1 is a plano-concave mirror, the radius of curvature is 100mm, the 1064nm antireflection film is plated on both sides, the 1150-1200nm high-reflection film is plated on the concave surface; the output mirror 4-2 of the Stokes light resonant cavity is a plano-concave mirror, the curvature radius is 100mm, a 1064nm antireflection film is plated on the double surfaces, and a 1150-1200nm partial reflecting film is plated on the concave surface; the Stokes light resonant cavity input mirror 4-1 and the Stokes light resonant cavity output mirror 4-2 form a Stokes light resonant cavity, and the cavity length is 190 mm; the Raman crystal KGW5 is cut along the Np axis direction and has the size of 4 multiplied by 20mm3And is plated with antireflection films of 1064nm and 1150-1200 nm.
In the concrete implementation, the 1064Nm linearly polarized fundamental laser is polarized along the vertical direction when being emitted from the fundamental laser light source 1, the optical axis of the half-wave plate 3 is polarized along the vertical direction, the Nm axis of the Raman crystal KGW5 is polarized along the vertical direction, the Ng axis is polarized along the horizontal direction, at the moment, the polarization direction of the fundamental laser after passing through the half-wave plate 3 is not changed, and the incident Raman laser is incident along the vertical polarization direction (namely along the Nm axis)Crystal KGW5, 901cm in Nm-axis-1Produces raman stokes light of wavelength 1176 nm. When the half-wave plate 3 is rotated, the polarization direction of the fundamental frequency laser changes, the linear polarization fundamental frequency laser entering the KGW crystal is decomposed into components in the electric field vibration direction along the Nm axis and the Ng axis of the crystal and passing through 901cm respectively in the two polarization directions of the Nm axis and the Ng axis of the crystal no longer along the Nm axis of the KGW crystal-1And 768cm-1The Raman frequency shift of the optical fiber generates Raman Stokes light with the wavelengths of 1176Nm and 1159Nm and the polarization directions along the Nm axis (vertical) direction and the Ng axis (horizontal) direction respectively, and dual-wavelength laser output with orthogonal polarization is obtained.
The proportion of components of the fundamental frequency laser along the Nm axis and the Ng axis of the crystal in two polarization directions can be controlled by changing the polarization direction of the linear polarization fundamental frequency laser by rotating the half-wave plate 3, so that the effect of adjusting the output power proportion of the orthogonal polarization dual-wavelength laser is achieved.
In summary, the embodiments of the present invention have the advantages that the two mirror cavities (i.e. the stokes optical resonant cavity input mirror 4-1 and the stokes optical resonant cavity output mirror 4-2) are adopted, the structure is compact, the loss is low, the efficiency is high, the dual-wavelength raman stokes light of orthogonal polarization can be realized by controlling the polarization state of the incident fundamental frequency laser through the half-wave plate, and the power ratio of dual-wavelength output can be simply and conveniently adjusted.
Example 2:
the embodiment of the invention provides an orthogonal polarization dual-wavelength laser with adjustable power proportion, which comprises: the device comprises a fundamental frequency laser light source 1, a focusing lens 2, a half-wave plate 3, a Stokes light resonant cavity input mirror 4-1, a Stokes light resonant cavity output mirror 4-2, a Stokes light resonant cavity total reflection mirror 4-3 and a Raman crystal KYW 5;
YAG laser with wavelength of 532nm and linear polarization; the focal length of the focusing lens 2 is 100mm, and a 532nm antireflection film is plated; the working wavelength of the half-wave plate 3 is 532nm, and a 532nm antireflection film is plated; the Stokes light resonant cavity input mirror 4-1 is a flat mirror, and both sides are plated with 532nm antireflection films, and one side is plated with 550-600nm high-reflection films; the output mirror 4-2 of the Stokes light resonant cavity is a plano-concave mirror with the curvature radius of 100mm, 532nm antireflection film is plated on two surfaces, and the part with the thickness of 550-560nm is plated on the concave surfaceA partial reflection film; the total reflection mirror 4-3 of the Toxoks optical resonant cavity is a plano-concave mirror, the curvature radius is 100mm, and the concave surface is plated with a 550-560nm high reflection film; the Stokes light resonant cavity input mirror 4-1, the Stokes light resonant cavity output mirror 4-2 and the Stokes light resonant cavity total reflection mirror 4-3 form a Stokes light resonant cavity, and the cavity length is 190 mm; the Raman crystal KYW 5 is cut along the Np axis direction and has the size of 4 multiplied by 30mm3And is plated with antireflection films of 532nm and 550-560 nm.
During specific implementation, linear polarization 532Nm fundamental frequency laser is polarized along the vertical direction when being emitted from the fundamental frequency laser light source 1, the optical axis of the half-wave plate 3 is along the vertical direction, the Nm axis of the Raman crystal KYW 5 is along the vertical direction, the Ng axis is along the horizontal direction, the polarization direction of the fundamental frequency laser after passing through the half-wave plate 3 is not changed, the linear polarization laser is incident into the Raman crystal KGW5 along the vertical polarization direction (namely along the Nm axis), and the linear polarization fundamental frequency laser is 905cm in the Nm axis direction-1Produces Raman Stokes light of a wavelength of 559 nm. When the half-wave plate 3 is rotated, the polarization direction of the fundamental frequency laser changes, the linear polarization fundamental frequency laser entering the KYW crystal is decomposed into components along the Nm axis and the Ng axis of the crystal and passes through 905cm respectively in two polarization directions of the Nm axis and the Ng axis of the crystal no longer along the Nm axis of the KYW crystal-1And 765cm-1The Raman frequency shift of the optical fiber generates Raman Stokes light with the wavelengths of 559Nm and 555Nm and the polarization directions along the Nm axis (vertical) direction and the Ng axis (horizontal) direction respectively, and dual-wavelength laser output with orthogonal polarization is obtained. The proportion of components of the fundamental frequency laser along the Nm axis and the Ng axis of the crystal in two polarization directions can be controlled by changing the polarization direction of the linear polarization fundamental frequency laser by rotating the half-wave plate 3, so that the effect of adjusting the output power proportion of the orthogonal polarization dual-wavelength laser is achieved.
In summary, the embodiments of the present invention have the advantages that the short wavelength fundamental laser has higher raman gain, which is beneficial to improving the conversion efficiency, and the orthogonal polarization dual wavelength output of the visible light band is directly obtained through the stimulated raman scattering, which cannot be realized by the conventional technologies such as dual wavelength infrared fundamental frequency light frequency doubling/sum frequency.
Example 3
In the above embodiments 1 and 2, the active fiber of the fundamental laser light source 1 may be a Nd-doped solid-state laser, or may be a solid-state or fiber doped with other ions such as Yb, or a laser of other gain medium, as long as the linear polarization laser output in the light passing range of the raman crystal can be provided at the wavelength, which is not limited in the embodiment of the present invention.
Correspondingly, the raman crystal 5 may be KGW, KYW, or other raman crystals with different raman main peak frequency shift amounts in different polarization directions, and in the specific implementation, the wavelength of the fundamental frequency light and the device coating film may be selected according to specific needs and frequency shifts of the raman crystal, which is not limited in the embodiment of the present invention.
In summary, the embodiments of the present invention provide an orthogonal polarization dual-wavelength laser with adjustable power ratio, in which crystals with different raman main peak frequency shifts in different polarization directions are used as raman gain media to obtain orthogonal polarization dual-wavelength laser output, and the ratio of polarization components of fundamental frequency light along two main axes of the crystal is changed by controlling the relative relationship between the polarization direction of incident fundamental frequency laser and the main axis of the raman crystal, so as to implement simple adjustment of the power ratio of orthogonal polarization dual-wavelength output.
In the embodiment of the present invention, except for the specific description of the model of each device, the model of other devices is not limited, as long as the device can perform the above functions.
Those skilled in the art will appreciate that the drawings are only schematic illustrations of preferred embodiments, and the above-described embodiments of the present invention are merely provided for description and do not represent the merits of the embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. An orthogonally polarized dual wavelength laser with adjustable power ratios, the dual wavelength laser comprising: a fundamental frequency laser light source, a coupling focusing system, a half-wave plate, a Stokes light resonant cavity and a Raman crystal,
the linearly polarized fundamental laser enters the Raman crystal through the focusing of the coupling focusing system to provide Raman gain, and when the Raman gain is larger than the loss of the Stokes light resonant cavity, the Stokes light is formed to oscillate in the cavity and output;
the Raman crystal has different Raman main peak frequency shifts in different polarization directions, when the polarization direction of the fundamental frequency light is not parallel to the main axis of the crystal, orthogonal polarization dual-wavelength laser output is obtained, the polarization direction of the incident linear polarization fundamental frequency laser is controlled by a half-wave plate, the proportion of two polarization components of the fundamental frequency light in the main axis direction of the crystal is changed, and the adjustment of the proportion of the orthogonal polarization dual-wavelength output power is realized.
2. The tunable power ratio orthogonal polarization dual wavelength laser of claim 1,
the coupling focusing system is plated with a fundamental frequency laser antireflection film and consists of 1 or more lenses;
the working wavelength of the half-wave plate is fundamental frequency laser wavelength, and a fundamental frequency laser antireflection film is plated on the half-wave plate;
the Raman resonant cavity comprises an input mirror, a Stokes light output mirror or a plurality of cavity mirrors.
3. A power-ratio-adjustable cross-polarized dual-wavelength laser as defined in claim 2,
the input mirror is plated with a fundamental frequency laser anti-reflection Raman Stokes light high-reflection film system, the Stokes light output mirror is plated with a Stokes light partial reflection film, and other cavity mirrors are plated with Stokes light high-reflection films; the Raman crystal is plated with fundamental frequency laser and a Stokes high-transmittance film system.
4. The tunable power ratio orthogonal polarization dual wavelength laser of claim 1,
the fundamental frequency laser light source is a solid laser or a fiber laser, and the wavelength is 1064nm or other wavelengths in the light passing band of the Raman crystal.
5. The tunable power ratio orthogonal polarization dual wavelength laser of claim 1,
the Raman crystal is a crystal with different Raman main peak frequency shifts in two polarization directions.
6. A power-ratio-adjustable cross-polarized dual-wavelength laser as in any one of claims 1-5,
the fundamental frequency laser light source is: continuous wave, modulation, Q-switched pulse and mode-locked pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010023989.3A CN111180987B (en) | 2020-01-09 | 2020-01-09 | Orthogonal polarization dual-wavelength laser with adjustable power proportion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010023989.3A CN111180987B (en) | 2020-01-09 | 2020-01-09 | Orthogonal polarization dual-wavelength laser with adjustable power proportion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111180987A true CN111180987A (en) | 2020-05-19 |
| CN111180987B CN111180987B (en) | 2021-11-12 |
Family
ID=70656255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010023989.3A Active CN111180987B (en) | 2020-01-09 | 2020-01-09 | Orthogonal polarization dual-wavelength laser with adjustable power proportion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111180987B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447755A (en) * | 2022-04-11 | 2022-05-06 | 天津大学 | Orthogonal oscillation laser gain self-balancing system based on intracavity polarization conversion device |
| CN115420729A (en) * | 2022-11-02 | 2022-12-02 | 哈尔滨翰奥科技有限公司 | Method for enhancing Raman effect based on multi-step excitation 244nm laser |
| CN116111434A (en) * | 2023-04-13 | 2023-05-12 | 山东科技大学 | Green light double-frequency laser system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5091912A (en) * | 1990-02-13 | 1992-02-25 | Societe D'applications Generales D'electricite Et De Mecanique Sagem | Laser having two modes at different frequencies |
| CN101242070A (en) * | 2008-02-15 | 2008-08-13 | 福州高意通讯有限公司 | Solid laser of semiconductor pumping |
| CN102195229A (en) * | 2010-03-02 | 2011-09-21 | 中国科学院福建物质结构研究所 | Novel orthogonal-polarization dual-wavelength laser |
| CN102983493A (en) * | 2012-11-30 | 2013-03-20 | 中国科学院福建物质结构研究所 | Cross polarization dual-wavelength laser |
| CN104022436A (en) * | 2014-06-23 | 2014-09-03 | 山东大学 | Multi-wavelength solid laser device based on Raman conversion |
| CN105098589A (en) * | 2014-05-13 | 2015-11-25 | 中国人民解放军军械工程学院 | Dual-wavelength Raman mode locked laser |
-
2020
- 2020-01-09 CN CN202010023989.3A patent/CN111180987B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5091912A (en) * | 1990-02-13 | 1992-02-25 | Societe D'applications Generales D'electricite Et De Mecanique Sagem | Laser having two modes at different frequencies |
| CN101242070A (en) * | 2008-02-15 | 2008-08-13 | 福州高意通讯有限公司 | Solid laser of semiconductor pumping |
| CN102195229A (en) * | 2010-03-02 | 2011-09-21 | 中国科学院福建物质结构研究所 | Novel orthogonal-polarization dual-wavelength laser |
| CN102983493A (en) * | 2012-11-30 | 2013-03-20 | 中国科学院福建物质结构研究所 | Cross polarization dual-wavelength laser |
| CN105098589A (en) * | 2014-05-13 | 2015-11-25 | 中国人民解放军军械工程学院 | Dual-wavelength Raman mode locked laser |
| CN104022436A (en) * | 2014-06-23 | 2014-09-03 | 山东大学 | Multi-wavelength solid laser device based on Raman conversion |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447755A (en) * | 2022-04-11 | 2022-05-06 | 天津大学 | Orthogonal oscillation laser gain self-balancing system based on intracavity polarization conversion device |
| CN115420729A (en) * | 2022-11-02 | 2022-12-02 | 哈尔滨翰奥科技有限公司 | Method for enhancing Raman effect based on multi-step excitation 244nm laser |
| CN115420729B (en) * | 2022-11-02 | 2023-06-23 | 中国科学院新疆理化技术研究所 | Method for enhancing Raman effect based on multi-step excitation 244nm laser |
| CN116111434A (en) * | 2023-04-13 | 2023-05-12 | 山东科技大学 | Green light double-frequency laser system |
| CN116111434B (en) * | 2023-04-13 | 2023-08-18 | 山东科技大学 | Green light double-frequency laser system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111180987B (en) | 2021-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Pollak et al. | CW laser operation of Nd: YLF | |
| CN111180987B (en) | Orthogonal polarization dual-wavelength laser with adjustable power proportion | |
| CN107046222B (en) | Inner cavity optical parametric oscillator for realizing similar dual-wavelength output | |
| JP2007036195A (en) | Laser apparatus using nonlinear optical crystal or solid slab laser rod of multiplex optical path | |
| CN111431021A (en) | Laser with orthogonal polarization output | |
| CN109449736B (en) | Compact-structure watt-level continuous wave inner cavity frequency doubling single-frequency laser | |
| Zhang et al. | Watt-level continuous-wave intracavity frequency-doubled Pr: YLF-LBO laser at 320 nm | |
| Xia et al. | Radially polarized, actively Q-switched, and end-pumped Nd: YAG laser | |
| US5764662A (en) | Solid state ultraviolet laser tunable from 223 NM to 243 NM | |
| Schellhorn et al. | High-Efficient Resonantly Pumped Q-Switched Ho: LLF MOPA System | |
| CN111416263A (en) | Terahertz source based on phosphorus germanium zinc crystal non-collinear phase matching difference frequency | |
| CN104701726A (en) | Cylindrical vector pulse laser device based on walk-off effect of birefringent crystal | |
| CN212182756U (en) | Laser with orthogonal polarization output | |
| EP1845595A1 (en) | Optically anisotropic solid state laser pumped with perpendicularly polarized pump light | |
| CN114883896A (en) | 2 mu m laser | |
| Zhu et al. | All-solid-state dual end pumped Nd: YAG/LBO yellow green laser with 10.8 W output power at 561 nm | |
| Isyanova et al. | High-power, passively Q-switched microlaser-power amplifier system | |
| CN108512025B (en) | Passive Q-switched Yb CaYAlO4All-solid-state pulse laser | |
| Zuo et al. | Multi-Watt Simultaneous Orthogonally Polarized Dual-Wavelength Pulse Generation of an Intracavity Nd: YLF/YVO 4 Raman Laser | |
| CN112397984A (en) | All-solid-state tunable blue-green laser based on self-sum frequency effect | |
| CN113725712B (en) | System and method for generating pulse blue laser based on alkali metal vapor and neodymium-doped solid | |
| Kimmelma et al. | Short pulse, diode pumped, passively Q-switched Nd: YAG laser at 946 nm quadrupled for UV production | |
| Eichler et al. | Design and construction of high-power solid state laser amplifiers with phase conjugating mirror | |
| CN219917893U (en) | Solid laser with bias selection function | |
| Ma et al. | Diode-pumped acousto-optically Q-switched laser using a novel Nd: GdYTaO 4 mixed crystal |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |