CN101986482A - Compact green crystal component - Google Patents
Compact green crystal component Download PDFInfo
- Publication number
- CN101986482A CN101986482A CN2009101122823A CN200910112282A CN101986482A CN 101986482 A CN101986482 A CN 101986482A CN 2009101122823 A CN2009101122823 A CN 2009101122823A CN 200910112282 A CN200910112282 A CN 200910112282A CN 101986482 A CN101986482 A CN 101986482A
- Authority
- CN
- China
- Prior art keywords
- crystal
- optical
- green light
- laser
- optical film
- 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
- 239000013078 crystal Substances 0.000 title claims abstract description 91
- 230000003287 optical effect Effects 0.000 claims abstract description 38
- 239000004568 cement Substances 0.000 claims abstract description 9
- 239000012788 optical film Substances 0.000 claims description 42
- 229910009372 YVO4 Inorganic materials 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 abstract description 3
- 229910052779 Neodymium Inorganic materials 0.000 abstract description 2
- 239000003292 glue Substances 0.000 abstract description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000002310 reflectometry Methods 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- -1 neodymium ions Chemical class 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Lasers (AREA)
Abstract
The invention relates to the design of a compact green crystal component. The component comprises neodymium ion-doped later crystals, non-linear optical crystals YAl3(BO3)4 and an optical resonant cavity consisting of specific optical thin films coated on the front and rear end faces of the crystal component, wherein the two kinds of crystals are combined together by optical cement and glue. The laser module has the characteristics of simple design, compact structure, convenience of large-scale production and low cost. When used, the laser module does not need any adjustment and can emit green light directly under the irradiation of a semiconductor laser pump behind a reshaping and coupling system. The green laser module can be used in medium and small power output laser devices for realizing convenient and quick green laser output.
Description
The technical field is as follows:
the invention relates to a solid laser module, which belongs to the application of crystal materials in the photoelectric field and can be applied to LD end-pumping to generate green laser.
Background art:
the miniaturized, all-solid-state, high-efficiency, medium-and-small-power green laser has a wide application prospect in the fields of optical data storage, coherent light communication, color laser display, novel measurement systems and the like. At present, a plurality of green lasers adopt discrete optical elements, the whole system is more complex, and the influence of the environment is larger. At present, YVO4 and K are also adoptedTP optical glue or glued green crystal modules have been commercially used. In our study, nonlinear optical crystal YAl was found3(BO3)4Has good frequency doubling performance, if a laser crystal and a nonlinear optical crystal YAl are adopted3(BO3)4The green light component with the composition can obtain better performance. The invention provides another laser component which can directly emit green light without adjusting the irradiation of the semiconductor pump.
The invention content is as follows:
the invention aims to provide a low-cost and compact assembly which does not need any adjustment and can directly emit green light under the condition of a semiconductor pump.
The technical scheme of the invention is described as follows by combining the attached drawings:
the compact green light crystal component is a nonlinear optical crystal YAl cut by a laser crystal 1 according to the phase matching angle required by the frequency doubling to generate green light3(BO3)42 and specific optical films A and B respectively plated on the front and rear end surfaces of the crystal assembly. The laser crystal 1 doped with neodymium ions and the nonlinear optical crystal 2 are fixed together by optical cement or gluing. The component structure is as follows: optical film A/laser crystal 1/nonlinear optical crystal 2/optical film B. Wherein the optical film A and the optical film B form an optical resonant cavity with a flat cavity structure.
In the optical film, the optical film A plated on the front end face of the green light crystal component has the anti-reflection function on the wavelength near 808nm (for a module used as LD pump with the wavelength near 808 nm) or the wavelength near 880nm (for a module used as LD pump with the wavelength near 880 nm) and has high reflection on the 1.06 mu m waveband; the optical film B plated on the rear end face of the green light crystal component has high reflectivity on a 1.06 mu m wave band and high transmittance on 0.53 mu m frequency doubling green light wavelength.
The laser crystal 1 can be Nd: YAG or Nd: YVO4Or Nd: GdVO4。
The nonlinear optical crystal 2 is YAl3(BO3)4The phase matching angle theta required by frequency doubling to generate green light is 30.7 degrees, and the length can be cut according to the actual requirement of the crystal.
The application method of the invention comprises the following steps: the green light crystal component is fixed in the metal heat sink, so that the green light crystal component can be in good contact with the periphery to dissipate heat. For the optical film A coated with the anti-reflection module with the wavelength near 808nm, LD pump irradiation with the wavelength near 808nm after passing through a shaping focusing system can be adopted to directly emit green light; for the module with the optical film A coated and with the wavelength near 880nm for reflection increasing, LD pump irradiation with the wavelength near 880nm after passing through a shaping focusing system can be adopted to directly emit green light.
The invention has the advantages that: the compact green light crystal component has the advantages of simple design, compact structure, convenience for mass production and lower cost; when in use, the laser crystal, the nonlinear optical crystal and the resonant cavity do not need any adjustment. For the module with the optical film A for increasing the reflection at the wavelength near 808nm, the most commonly used LD pump with the wavelength near 808nm can be adopted, and the module has the advantages of large absorption coefficient and wide absorption bandwidth; for the module with the optical film A being anti-reflection at the wavelength near 880nm, an LD pump with the wavelength near 880nm can be adopted, and the module has the advantages of small quantum loss, small thermal effect influence and high efficiency.
Description of the drawings:
the attached drawing is a structural schematic diagram of the compact green crystal assembly of the invention. Wherein,
1 is a neodymium ion doped laser crystal; 2 is a nonlinear crystal YAl3(BO3)4(ii) a A is an optical film A; and B is an optical film B.
The specific implementation mode is as follows:
example 1:
according to the attached drawing, a compact green crystal assembly was fabricated. YAG Nd of 3mm × 3mm × 4mm with Nd concentration of 2.0% is used as laser crystal 1, and the laser crystal is cut at the phase matching angle theta of 30.7 deg. at room temperature to form YAl of 3mm × 3mm × 3mm size3(BO3)42 are fixed together by optical cement. Meanwhile, the optical film A plated on the front end face of the crystal component is anti-reflection to the pump wavelength of 808nm and high-reflection to the wavelength of 1.06 mu m; the optical film B plated on the rear end face of the crystal component has high reflectivity for 1.06 mu m wave band and simultaneously has anti-reflection for green light of 0.53 mu m wave band. The optical film A and the optical film B form an optical resonant cavity with a flat cavity structure.
When the laser diode is used, the green light crystal component is fixed in the metal heat sink, so that the green light crystal component is in good contact with the periphery for heat dissipation, and the green light with the wavelength of 0.53 mu m is directly emitted under the irradiation of an LD pump with the wavelength of 808nm after passing through the shaping and focusing system.
Example 2:
according to the attached drawing, a compact green crystal assembly was fabricated. YVO (Nd: YVO) with Nd concentration of 1.5% and size of 3mm x 1.5mm is used4The laser crystal 1 was a nonlinear optical crystal YAl cut at a phase matching angle θ of 30.7 ° at room temperature and having a size of 3mm × 3mm × 2mm3(BO3)42 are fixed together by optical cement. Meanwhile, the optical film A plated on the front end face of the crystal component is anti-reflection to the pump wavelength of 808nm and high-reflection to the wavelength of 1.06 mu m; the optical film B plated on the rear end face of the crystal component has high reflectivity for 1.06 mu m wave band and simultaneously has anti-reflection for green light of 0.53 mu m wave band. The optical film A and the optical film B form an optical resonant cavity with a flat cavity structure.
When the laser diode is used, the green light crystal component is fixed in the metal heat sink, so that the green light crystal component is in good contact with the periphery for heat dissipation, and the green light with the wavelength of 0.53 mu m is directly emitted under the irradiation of an LD pump with the wavelength of 808nm after passing through the shaping and focusing system.
Example 3:
according to the attached drawing, a compact green crystal assembly was fabricated. Adopting Nd (GdVO) with the Nd concentration of 1.0% and the size of 3mm multiplied by 5mm4The laser crystal 1 was a nonlinear optical crystal YAl cut at a phase matching angle θ of 30.7 ° at room temperature and having a size of 3mm × 3mm × 4mm3(BO3)42 are fixed together by optical cement. Meanwhile, the optical film A plated on the front end face of the crystal component is anti-reflection to the pump wavelength of 808nm and high-reflection to the wavelength of 1.06 mu m; the optical film B plated on the rear end face of the crystal component has high reflectivity for 1.06 mu m wave band and simultaneously has anti-reflection for green light of 0.53 mu m wave band. The optical film A and the optical film B form an optical resonant cavity with a flat cavity structure.
When the laser diode is used, the green light crystal component is fixed in the metal heat sink, so that the green light crystal component is in good contact with the periphery for heat dissipation, and the green light with the wavelength of 0.53 mu m is directly emitted under the irradiation of an LD pump with the wavelength of 808nm after passing through the shaping and focusing system.
Example 4:
according to the attached drawing, a compact green crystal assembly was fabricated. YAG Nd 3mm × 3mm Nd 1.0% and YAL 3mm × 6mm laser crystal is cut at room temperature to form YAl nonlinear optical crystal with phase matching angle of 30.7 deg and size of 3mm × 3mm × 6mm3(BO3)42 are fixed together by optical cement. Meanwhile, the optical film A plated on the front end face of the crystal component is anti-reflection to 880nm pump wavelength and high-reflection to 1.06 mu m wavelength; the optical film B plated on the rear end face of the crystal component has high reflectivity for 1.06 mu m wave band and simultaneously has anti-reflection for green light of 0.53 mu m wave band. The optical film A and the optical film B form an optical resonant cavity with a flat cavity structure.
When the laser is used, the green light crystal component is fixed in the metal heat sink, so that the green light crystal component is in good contact with the periphery for heat dissipation, and the green light with the wavelength of 0.53 mu m is directly emitted under the irradiation of an LD pump with the wavelength of 880nm after passing through the shaping and focusing system.
Example 5:
according to the attached drawings, make aA compact green crystal assembly. Adopting Nd-YVO with Nd concentration of 1.0% and size of 3mm x 4mm4The laser crystal 1 was a nonlinear optical crystal YAl cut at a phase matching angle θ of 30.7 ° at room temperature and having a size of 3mm × 3mm × 3mm3(BO3)42 are fixed together by optical cement. Meanwhile, the optical film A plated on the front end face of the crystal component is anti-reflection to 880nm pump wavelength and high-reflection to 1.06 mu m wavelength; the optical film B plated on the rear end face of the crystal component has high reflectivity for 1.06 mu m wave band and simultaneously has anti-reflection for green light of 0.53 mu m wave band. The optical film A and the optical film B form an optical resonant cavity with a flat cavity structure.
When the laser is used, the green light crystal component is fixed in the metal heat sink, so that the green light crystal component is in good contact with the periphery for heat dissipation, and the green light with the wavelength of 0.53 mu m is directly emitted under the irradiation of an LD pump with the wavelength of 880nm after passing through the shaping and focusing system.
Example 6:
according to the attached drawing, a compact green crystal assembly was fabricated. Adopting Nd (GdVO) with the Nd concentration of 1.0% and the size of 3mm multiplied by 5mm4The laser crystal 1 was a nonlinear optical crystal YAl cut at a phase matching angle θ of 30.7 ° at room temperature and having a size of 3mm × 3mm × 6mm3(BO3)42 are fixed together by optical cement. Meanwhile, the optical film A plated on the front end face of the crystal component is anti-reflection to 880nm pump wavelength and high-reflection to 1.06 mu m wavelength; the optical film B plated on the rear end face of the crystal component has high reflectivity for 1.06 mu m wave band and simultaneously has anti-reflection for green light of 0.53 mu m wave band. The optical film A and the optical film B form an optical resonant cavity with a flat cavity structure.
When the laser is used, the green light crystal component is fixed in the metal heat sink, so that the green light crystal component is in good contact with the periphery for heat dissipation, and the green light with the wavelength of 0.53 mu m is directly emitted under the irradiation of an LD pump with the wavelength of 880nm after passing through the shaping and focusing system.
Example 7:
according to the attached drawing, a compact green crystal is manufacturedA body assembly. Different from the examples 1, 2, 3, 4, 5 and 6 are the laser crystal 1 and the nonlinear optical crystal YAl3(BO3)4The fixing means of 2 may be gluing.
Claims (4)
1. A compact green laser crystal assembly comprising: laser crystal, nonlinear optical crystal YAl cut according to phase matching angle required by frequency doubling to generate green light3(BO3)4And special optical films plated on the front and back end faces of the whole crystal assembly; the method is characterized in that: laser crystal and nonlinear optical crystal YAl3(BO3)4Optical films plated on the front and rear end faces of the whole crystal assembly form an optical resonant cavity with a flat cavity structure through optical cement or gluing.
2. The compact green laser crystal assembly of claim 1, wherein: the laser crystal is Nd: YAG or Nd: YVO4Or Nd: GdVO4。
3. The compact green laser crystal assembly of claim 1, wherein: the phase matching angle required by the frequency multiplication to generate green light is 30.7 degrees.
4. The compact green laser crystal assembly of claim 1, wherein: the optical film plated on the front end face of the crystal module has the advantages of increasing the reflection of pump light at 808nm or 880nm and simultaneously having high reflection on a 1.06 mu m wave band, and the optical film plated on the rear end face of the crystal module has high reflection on the 1.06 mu m wave band and high transmission on a frequency doubling wavelength of 0.53 mu m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101122823A CN101986482A (en) | 2009-07-29 | 2009-07-29 | Compact green crystal component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101122823A CN101986482A (en) | 2009-07-29 | 2009-07-29 | Compact green crystal component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101986482A true CN101986482A (en) | 2011-03-16 |
Family
ID=43710802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101122823A Pending CN101986482A (en) | 2009-07-29 | 2009-07-29 | Compact green crystal component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101986482A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870776A (en) * | 2016-06-13 | 2016-08-17 | 马玉珂 | Combined function crystal for producing green light and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1497802A (en) * | 2002-09-29 | 2004-05-19 | 中国科学院福建物质结构研究所 | Tunable red-green-blue-purple laser |
| CN101471528A (en) * | 2007-12-28 | 2009-07-01 | 福建福晶科技股份有限公司 | Compact green light crystal component |
| CN101471527A (en) * | 2007-12-28 | 2009-07-01 | 福建福晶科技股份有限公司 | Compact blue light crystal component |
-
2009
- 2009-07-29 CN CN2009101122823A patent/CN101986482A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1497802A (en) * | 2002-09-29 | 2004-05-19 | 中国科学院福建物质结构研究所 | Tunable red-green-blue-purple laser |
| CN101471528A (en) * | 2007-12-28 | 2009-07-01 | 福建福晶科技股份有限公司 | Compact green light crystal component |
| CN101471527A (en) * | 2007-12-28 | 2009-07-01 | 福建福晶科技股份有限公司 | Compact blue light crystal component |
Non-Patent Citations (1)
| Title |
|---|
| 王继扬等: "激光自倍频晶体研究和应用进展", 《物理学进展》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870776A (en) * | 2016-06-13 | 2016-08-17 | 马玉珂 | Combined function crystal for producing green light and manufacturing method thereof |
| CN105870776B (en) * | 2016-06-13 | 2018-08-21 | 马玉珂 | It is a kind of to be used to generate combination function crystal of green light and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202678714U (en) | High-power pulse laser | |
| CN103887698A (en) | Efficient singular-pump-source and two-end-symmetric type pump laser | |
| CN103594914B (en) | A kind of yellow orange light laser based on self-frequency doubling laser crystal | |
| CN103618205A (en) | Full-solid-state single longitudinal mode yellow light laser | |
| CN201504011U (en) | All-solid-state raman frequency-doubled yellow laser | |
| CN100428587C (en) | Thulium and holmium double-doped lutetium lithium fluoride crystal laser for laser diode side pumping | |
| CN102025100B (en) | Single-frequency visible light laser based on self-frequency-doubling laser crystal | |
| CN103022886B (en) | all-solid-state picosecond laser amplifier | |
| CN114336254B (en) | High-brightness main oscillation power amplification picosecond laser system | |
| CN104253375B (en) | A kind of high repetition frequency narrow pulse width single-mode green light laser | |
| CN110556702B (en) | Solid blue laser | |
| CN104319603A (en) | Strip laser amplifier and laser output method thereof | |
| CN202167755U (en) | Outside-cavity resonant ultraviolet laser generating device | |
| CN101986480A (en) | Composite self-Raman frequency-doubled yellow laser crystal module | |
| CN203747230U (en) | High-efficient single-pump-source dual-end symmetric pump laser | |
| CN203645130U (en) | High-power glass-doped laser device | |
| CN113594842A (en) | Device and method for generating ultrashort pulse of erbium-doped laser | |
| CN100438232C (en) | Quasi-continuous high power red, green double-wavelength laser with LD side pumping | |
| CN103545700A (en) | Integrated single-platform miniature laser | |
| CN111668692A (en) | Laser material module for micron-waveband solid laser | |
| CN101986482A (en) | Compact green crystal component | |
| CN101378172A (en) | 760 nanometer waveband solid-state laser | |
| CN103972786A (en) | Amplifier structure and laser device | |
| CN201001003Y (en) | Thulium and holmium double-doped lutetium lithium fluoride crystal laser for laser diode side pumping | |
| CN114883896A (en) | 2 mu m laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110316 |