CN107994448B - White light laser - Google Patents
White light laser Download PDFInfo
- Publication number
- CN107994448B CN107994448B CN201711248991.5A CN201711248991A CN107994448B CN 107994448 B CN107994448 B CN 107994448B CN 201711248991 A CN201711248991 A CN 201711248991A CN 107994448 B CN107994448 B CN 107994448B
- Authority
- CN
- China
- Prior art keywords
- light
- laser
- mirror
- resonant cavity
- white light
- 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.)
- Active
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
- H01S3/06—Construction or shape of active medium
- H01S3/0602—Crystal lasers or glass lasers
-
- 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
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
-
- 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
- H01S3/10084—Frequency control by seeding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Lasers (AREA)
Abstract
The invention relates to a white light laser, comprising a pumping source, a first resonant cavity and a second resonant cavity; the pumping source is a blue semiconductor laser; the pumping light transmitted by the pumping source through the beam splitter sequentially passes through the first adjustable attenuator, the first total reflection mirror and the first lens and then enters the first resonant cavity, and the first laser crystal is pumped to generate red light; the pumping light reflected by the beam splitter from the pumping source sequentially passes through the second adjustable attenuator, the second total reflection mirror and the second lens and then enters the second resonant cavity, and the second laser crystal is pumped to generate green light; the red light, the green light and the pumping source are incident to the blue light which is not vibrated in the first resonant cavity and the blue light which is not vibrated in the second resonant cavity and enters the second resonant cavity, and the blue light are mixed into white light after being output from the cavity through the dichroic mirror and the laser output mirror. The white light laser of the invention respectively adjusts the power of the pump light which is incident to the two resonant cavities through the two adjustable attenuators, thereby controlling the power proportion of the red light and the green light so as to realize the adjustment of the output white light spectrum.
Description
Technical Field
The invention relates to the field of laser illumination and laser display, in particular to a white light laser.
Background
With advances in technology and rapid developments in laser technology, lasers have found wide application in the fields of communications, medical, machining, weapons, lighting, etc. The laser is limited by high monochromaticity of laser, and mainly outputs monochromatic light. Of course researchers have made a great deal of effort and attempts in the area of white light laser research and have achieved good results.
At present, the method for generating white light by utilizing the laser technology mainly comprises the following steps: (1) The method uses a plurality of discrete lasers to synthesize white light, and the method needs a plurality of devices, and the whole system is inconvenient to move and difficult to operate; (2) The method requires a pumping laser system with larger power, has certain danger in operation, and can reduce the quality of an output light beam due to nonlinear effects such as optical filaments, breakdown effect and the like in the experimental process; (3) The photonic crystal and the microstructure optical fiber are pumped by using the sapphire laser doped with titanium, the method is a practical technology, but the photonic crystal and the microstructure optical fiber have complex structures, and the sapphire laser doped with titanium has high price, so that the system has high manufacturing cost and is not easy to regulate and control; (4) And semiconductor materials with special structures, such as lattice-mismatched semiconductor crystals, are used, and the methods have high technical requirements, are not easy to obtain crystals and are high in cost. Therefore, a white light laser with simple structure, easy operation, convenient material drawing and low price is required by researchers, and is also urgently needed at present.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a white light laser with simple structure, convenient operation and adjustable spectrum.
The technical scheme adopted for solving the technical problems is as follows:
a white light laser comprises a pumping source, a beam splitter, a first adjustable attenuator, a second adjustable attenuator, a first total reflection mirror, a second total reflection mirror, a first lens, a second lens, a first resonant cavity and a second resonant cavity; the first resonant cavity comprises a first rear cavity mirror, a first laser crystal, a dichroic mirror and a laser output mirror which are sequentially arranged on the light path; the second resonant cavity comprises a second rear cavity mirror, a second laser crystal, a dichroic mirror and a laser output mirror which are sequentially arranged on the light path; the pumping source is a blue semiconductor laser; the pumping light transmitted by the pumping source through the beam splitter enters the first resonant cavity after passing through the first adjustable attenuator, the first total reflection mirror and the first lens in sequence, pumps the first laser crystal to generate red light, and the red light is emitted out of the cavity from the laser output mirror after passing through the dichroic mirror; the pumping light reflected by the beam splitter from the pumping source sequentially passes through the second adjustable attenuator, the second total reflection mirror and the second lens and then enters the second resonant cavity, the second laser crystal is pumped to generate green light, and the green light is reflected by the dichroic mirror and then exits from the laser output mirror to the outside of the cavity; the pumping source is incident to the outside of the output cavity of the first resonant cavity through the dichroic mirror and the laser output mirror, and enters the outside of the output cavity of the second resonant cavity through the dichroic mirror and the laser output mirror, and is mixed with the red light and the green light to form white light.
Preferably, the first adjustable attenuator adjusts the power of the pump light transmitted to the first resonant cavity to control the power of the output red light, so as to realize white light output with different spectral distributions.
Preferably, the second adjustable attenuator adjusts the power of the pump light reflected to the second resonant cavity to control the power of the output green light, so as to realize white light output with different spectral distributions.
Preferably, the first resonant cavity further comprises a first heat dissipation copper block; the first heat dissipation copper block tightly wraps the first laser crystal to dissipate heat of the first laser crystal.
Preferably, the second resonant cavity further comprises a second heat dissipation copper block; the second heat dissipation copper block tightly wraps the second laser crystal to dissipate heat of the second laser crystal.
Preferably, the first laser crystal and the second laser crystal are Pr: YLF crystals.
Preferably, the first rear cavity mirror has a blue light transmittance of greater than 90% and a red light reflectance of greater than 95%.
Preferably, the second rear cavity mirror has a blue light transmittance of greater than 90% and a green light reflectance of greater than 95%.
Preferably, the dichroic mirror has a transmittance of greater than 95% for red light and greater than 95% for green light.
Preferably, the laser output mirror has a blue light transmission of greater than 90%.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, two conventional Pr-YLF crystals are used, no special nano structure is needed to be made in the crystals, the crystal is easy to obtain from the market, and the price is moderate, so that the cost for obtaining white light is lower and easier;
2. the Pr-YLF crystal has low heat dissipation requirement, reduces the heat dissipation requirement of a laser system, simplifies the heat dissipation system of the laser crystal, provides an advantageous premise for the miniaturization of the whole system, and enables the integration of the system to be possible;
3. the invention utilizes the dichroic mirror to couple the two resonant cavities together, has more compact structure and simpler structure, simplifies the method for obtaining white light and has lower manufacturing cost of the system;
4. the red light, the blue light and the green light are output from the same laser output mirror, and no extra equipment is needed for coupling the light beams of all colors, so that the operation is simple;
5. the invention utilizes two adjustable attenuators, and can control the power proportion of red light and green light by changing the power of pump light incident into two resonant cavities, so that the spectrum of the obtained white light is more diversified, and the operation is simple, quick, real-time and convenient.
The present invention will be described in further detail with reference to the drawings and examples, but the white light laser of the present invention is not limited to the examples.
Drawings
Fig. 1 is a schematic structural diagram of a white light laser according to an embodiment of the present invention.
Reference numerals: 1. the laser beam splitter comprises a pumping source, 2, a beam splitter, 3, a first adjustable attenuator, 4, a second adjustable attenuator, 5, a first total reflection mirror, 6, a second total reflection mirror, 7, a first lens, 8, a second lens, 9, a first back cavity mirror, 10, a second back cavity mirror, 11, a first laser crystal, 12, a second laser crystal, 13, a first heat dissipation copper block, 14, a second heat dissipation copper block, 15, a dichroic mirror, 16 and a laser output mirror.
Detailed Description
The technical solutions in the embodiments of the present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The schematic structure of a white light laser provided in this embodiment is shown in fig. 1, and includes a pump source 1, a beam splitter 2, a first adjustable attenuator 3, a second adjustable attenuator 4, a total reflection mirror 5, a total reflection mirror 6, a lens 7, a lens 8, a first back cavity mirror 9, a second back cavity mirror 10, a first laser crystal 11, a second laser crystal 12, a first heat dissipation copper block 13, a second heat dissipation copper block 14, a dichroic mirror 15, and a laser output mirror 16.
In this embodiment, the pump source 1 is a blue semiconductor laser; the first laser crystal 11 and the second laser crystal 12 are Pr: YLF crystals. The main emission lines of Pr: YLF crystals include: 3 P 0 → 3 F 2 、 3 P 1 → 3 H 5 and the like, the corresponding peak transition wavelengths are red 639.5nm and green 522.6nm, respectively. The red spectral line gain is stronger than the green spectral line gain.
Further, the first back cavity mirror 9, the first laser crystal 11, the first heat dissipation copper block 13, the dichroic mirror 15 and the laser output mirror 16 form a first resonant cavity. Wherein the first rear cavity mirror 9 has a transmittance of 90% for blue light and a reflectance of 95% for red light; the laser output mirror 16 transmits 90% of the blue light.
Specifically, after being transmitted by the beam splitter 2, part of the blue light output by the pump source 1 sequentially passes through the first adjustable attenuator 3, the total reflection mirror 5 and the lens 7 and then enters the first resonant cavity, the first laser crystal 11 is pumped to generate red light, and the generated red light is emitted out of the cavity from the laser output mirror 16 after passing through the dichroic mirror 15;
further, the second back cavity mirror 10, the second laser crystal 12, the second heat dissipation copper block 14, the dichroic mirror 15 and the laser output mirror 16 form a second resonant cavity. Wherein the second rear cavity mirror 10 has a blue light transmittance of more than 90% and a green light reflectance of more than 95%; the dichroic mirror 15 has a transmittance of more than 95% for red light and a reflectance of more than 95% for green light.
Specifically, part of the blue light output by the pump source 1 is reflected by the beam splitter 2, then sequentially passes through the second adjustable attenuator 4, the total reflection mirror 6 and the lens 8, and then enters the second resonant cavity, the second laser crystal 12 is pumped to generate green light, and the generated green light is reflected by the dichroic mirror 15 and then exits from the laser output mirror 16 to the outside of the cavity.
Further, the pumping source 1 is incident to blue light which is not vibrated in the first resonant cavity and is output out of the cavity through the dichroic mirror 15 and the laser output mirror 16; the pumping source 1 enters blue light of the second resonant cavity, wherein the non-vibrating part is output out of the cavity through the dichroic mirror 15 and the laser output mirror 16, and is mixed with red light output by the first resonant cavity and green light output by the second resonant cavity to form white light.
Further, the first adjustable attenuator 3 controls the power of the pump light incident into the first resonant cavity, so as to adjust the power of the red light generated by the first resonant cavity; the second adjustable attenuator 4 controls the power of the pump light incident into the second resonant cavity, so as to adjust the power of green light generated by the second resonant cavity; by adjusting the ratio between the power of the red light generated by the first resonator and the power of the green light generated by the second resonator, white light of different spectral distributions can be output.
Further, the first heat dissipation copper block 13 tightly wraps the first laser crystal 11, and is fully contacted with the first laser crystal 11 to dissipate heat of the first laser crystal 11; the second heat dissipation copper block 14 tightly wraps the second laser crystal 12, and is fully contacted with the laser crystal to dissipate heat, so as to dissipate heat of the second laser crystal 12.
The basic principle of the invention is as follows: the pumping source 1 is a blue semiconductor laser, and laser light output by the blue semiconductor laser is divided into two beams of pumping light to pump Pr: YLF crystals in the first resonant cavity and the second resonant cavity respectively. The main emission lines of the Pr: YLF crystals used include: 3P0→3F2, 3P1→3H25, etc., and the corresponding peak transition wavelengths are respectively red light 639.5nm and green light 522.6nm. The gain of the red light spectrum line is stronger than that of the green light spectrum line, so that two Pr-YLF crystals are respectively arranged in two resonant cavities, and competition between the red light spectrum line and the green light spectrum line in the same resonant cavity is avoided; and because Pr: YLF crystals are respectively arranged in the two resonant cavities, the power of pump light entering the two resonant cavities can be conveniently adjusted, thereby realizing independent adjustment of the power of red light and green light. The two resonant cavities are coupled together by using a dichroic mirror, so that blue light, red light and green light can be output from the same laser output mirror to obtain white light.
The white light laser adopts two conventional Pr: YLF crystals, so that the cost for obtaining white light is lower, the requirement of a laser system on heat dissipation is reduced, and a favorable premise is provided for the miniaturization of the whole system. And the two resonant cavities are coupled together by using the dichroic mirror, so that the structure is more compact and simpler. The red light, the blue light and the green light are output from the same laser output mirror, no extra equipment is needed for collimating the light beams of all colors, and the operation is convenient. The power of the pump light incident to the two resonant cavities is respectively adjusted by utilizing the two adjustable attenuators, so that the power proportion of the output red light and green light is adjusted, the obtained white light spectrum is adjustable, and the operation is simple, real-time and convenient.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The white light laser is characterized by comprising a pumping source (1), a beam splitter (2), a first adjustable attenuator (3), a second adjustable attenuator (4), a first total reflection mirror (5), a second total reflection mirror (6), a first lens (7), a second lens (8), a first resonant cavity and a second resonant cavity; the first resonant cavity comprises a first rear cavity mirror (9), a first laser crystal (11), a dichroic mirror (15) and a laser output mirror (16) which are sequentially arranged on the light path; the second resonant cavity comprises a second rear cavity mirror (10), a second laser crystal (12), a dichroic mirror (15) and a laser output mirror (16) which are sequentially arranged on the light path; the pumping source (1) is a blue semiconductor laser; the pumping light transmitted by the pumping source (1) through the beam splitter (2) sequentially passes through the first adjustable attenuator (3), the first total reflection mirror (5) and the first lens (7) and then enters the first resonant cavity, the first laser crystal (11) is pumped to generate red light, and the red light is emitted out of the cavity from the laser output mirror (16) after passing through the dichroic mirror (15); the pumping light reflected by the pumping source (1) through the beam splitter (2) sequentially passes through the second adjustable attenuator (4), the second total reflection mirror (6) and the second lens (8) and then enters the second resonant cavity, the second laser crystal (12) is pumped to generate green light, and the green light is reflected by the dichroic mirror (15) and then exits from the laser output mirror (16) to the outside of the cavity; the pumping source (1) is incident to the outside of the output cavity of the non-vibrating blue light in the first resonant cavity through the dichroic mirror (15) and the laser output mirror (16), and the pumping source (1) enters the outside of the output cavity of the non-vibrating blue light in the second resonant cavity through the dichroic mirror (15) and the laser output mirror (16) and is mixed with the red light and the green light to form white light;
the first laser crystal (11) and the second laser crystal (12) are Pr: YLF crystals.
2. The white light laser according to claim 1, characterized in that the first tunable attenuator (3) adjusts the pump light power transmitted to the first resonator to control the power of the outputted red light, realizing white light output of different spectral distributions.
3. A white light laser as claimed in claim 1, characterized in that the second tuneable attenuator (4) adjusts the pump light power reflected to the second resonator to control the power of the output green light, achieving white light output of different spectral distribution.
4. A white light laser according to claim 1, characterized in that the first resonator cavity further comprises a first heat-dissipating copper block (13); the first radiating copper block (13) tightly wraps the first laser crystal (11) to radiate heat for the first laser crystal (11).
5. The white light laser of claim 1, characterized in that the second resonator further comprises a second heat-dissipating copper block (14); the second heat dissipation copper block (14) tightly wraps the second laser crystal (12) to dissipate heat of the second laser crystal (12).
6. The white light laser according to claim 1, characterized in that the first back facet mirror (9) has a blue light transmittance of more than 90% and a red light reflectance of more than 95%.
7. The white light laser according to claim 1, characterized in that the second back facet mirror (10) has a blue light transmittance of more than 90% and a green light reflectance of more than 95%.
8. The white light laser according to claim 1, characterized in that the dichroic mirror (15) has a transmittance of more than 95% for red light and more than 95% for green light.
9. The white light laser of claim 1, wherein the laser output mirror (16) has a blue light transmission of greater than 90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711248991.5A CN107994448B (en) | 2017-12-01 | 2017-12-01 | White light laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711248991.5A CN107994448B (en) | 2017-12-01 | 2017-12-01 | White light laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107994448A CN107994448A (en) | 2018-05-04 |
| CN107994448B true CN107994448B (en) | 2023-05-26 |
Family
ID=62034955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711248991.5A Active CN107994448B (en) | 2017-12-01 | 2017-12-01 | White light laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107994448B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711731A (en) * | 2018-08-28 | 2018-10-26 | 深圳市格镭激光科技有限公司 | A kind of both-end pumping polarized combination intracavity frequency doubling high frequency green laser |
| CN109324360A (en) * | 2018-11-29 | 2019-02-12 | 中国科学院上海光学精密机械研究所 | Laser beam collector |
| CN110137794B (en) * | 2019-04-23 | 2020-09-25 | 湖北大学 | Laser for coaxially outputting red and green laser |
| CN114284851A (en) * | 2021-12-24 | 2022-04-05 | 天津理工大学 | All-solid-state white light laser system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167712A (en) * | 1978-01-31 | 1979-09-11 | The United States Of America As Represented By The Secretary Of The Navy | Praseodymium blue-green laser system |
| DE102007027680B3 (en) * | 2007-06-15 | 2009-02-26 | Coherent Gmbh | Laser resonator for production of ultra-violet laser radiation by resonator-internal frequency conversion, has two resonator end mirrors, where housing has housing wall, and recess is covered by metal diaphragm |
| CN102597869A (en) * | 2009-08-31 | 2012-07-18 | 3M创新有限公司 | Projection and display system |
| CN103457147A (en) * | 2013-09-13 | 2013-12-18 | 厦门大学 | White light laser module |
| CN103996968A (en) * | 2014-05-27 | 2014-08-20 | 天津大学 | Self Raman yellow light laser of composite cavity structure |
| CN104102010A (en) * | 2014-07-25 | 2014-10-15 | 厦门大学 | Optical fiber laser backlight shaping device |
| WO2016044422A1 (en) * | 2014-09-16 | 2016-03-24 | Ipg Photonics Corporation | Rgb laser source for luminaire projector system |
| CN106848821A (en) * | 2017-04-13 | 2017-06-13 | 中国科学技术大学 | A kind of pump laser |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070189338A1 (en) * | 2006-02-14 | 2007-08-16 | Wolf Seelert | White light solid-state laser source |
| US20070189343A1 (en) * | 2006-02-14 | 2007-08-16 | Wolf Seelert | White light solid-state laser source with adjustable RGB output |
-
2017
- 2017-12-01 CN CN201711248991.5A patent/CN107994448B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167712A (en) * | 1978-01-31 | 1979-09-11 | The United States Of America As Represented By The Secretary Of The Navy | Praseodymium blue-green laser system |
| DE102007027680B3 (en) * | 2007-06-15 | 2009-02-26 | Coherent Gmbh | Laser resonator for production of ultra-violet laser radiation by resonator-internal frequency conversion, has two resonator end mirrors, where housing has housing wall, and recess is covered by metal diaphragm |
| CN102597869A (en) * | 2009-08-31 | 2012-07-18 | 3M创新有限公司 | Projection and display system |
| CN103457147A (en) * | 2013-09-13 | 2013-12-18 | 厦门大学 | White light laser module |
| CN103996968A (en) * | 2014-05-27 | 2014-08-20 | 天津大学 | Self Raman yellow light laser of composite cavity structure |
| CN104102010A (en) * | 2014-07-25 | 2014-10-15 | 厦门大学 | Optical fiber laser backlight shaping device |
| WO2016044422A1 (en) * | 2014-09-16 | 2016-03-24 | Ipg Photonics Corporation | Rgb laser source for luminaire projector system |
| CN106716247A (en) * | 2014-09-16 | 2017-05-24 | Ipg光子公司 | RGB laser source for luminaire projector system |
| CN106848821A (en) * | 2017-04-13 | 2017-06-13 | 中国科学技术大学 | A kind of pump laser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107994448A (en) | 2018-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107994448B (en) | White light laser | |
| TWI569086B (en) | Rgb laser source for luminaire projector system | |
| WO2006109730A1 (en) | Laser light source and optical device | |
| CN101950918B (en) | Self-frequency doubling green light solid-state laser suitable for laser display | |
| WO2013127174A1 (en) | Single-pump multi-wavelength lasing semiconductor raman pump laser and pump combination apparatus | |
| US9599835B2 (en) | Projection systems with despeckled laser light | |
| CN107482425A (en) | A kind of Gao Zhongying, single longitudinal mode, narrow spaces 2.79um laser pumping source | |
| CN104022436A (en) | Multi-wavelength solid laser device based on Raman conversion | |
| CN105470795B (en) | Medicinal all-solid-state yellow laser | |
| CN110165536B (en) | Tunable all-solid-state white light laser system | |
| US7489437B1 (en) | Fiber laser red-green-blue (RGB) light source | |
| CN107611762A (en) | A kind of broad tuning, narrow linewidth, efficient mid-infrared parameter oscillator | |
| CN104409957B (en) | A kind of 2 μm of laser devices of narrow linewidth | |
| CN207602970U (en) | A kind of white light laser | |
| CN105356215A (en) | Direct frequency multiplication device of semiconductor laser | |
| JP2020188250A (en) | High power multi-wavelength visible light raman laser | |
| CN105762649B (en) | Infrared super continuous spectrums laser in a kind of output of flat spectrum | |
| CN105790053B (en) | Infrared super continuous spectrums laser implementation method in a kind of output of flat spectrum | |
| CN106684681A (en) | Single-end pump near and middle infrared dual-band optical fiber laser and stable output method | |
| CN205319504U (en) | Medical all -solid yellow laser | |
| CN202094471U (en) | White light quantum dot fiber laser | |
| CN110165529A (en) | Three wave bands of one kind are the same as repetition tunable wave length mid-infrared fiber laser | |
| CN117728277A (en) | Red, green and blue three primary colors laser with absolute ethyl alcohol participating in frequency conversion | |
| Sun et al. | Progress on Wavelength Division Multiplexing Beam Combining Technology for Diode Lasers | |
| CN113540940A (en) | Integrated perfect soliton crystal frequency comb source with tunable repetition frequency and generation method |
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 |