CN107863680A - A kind of continuously adjustabe dual-wavelength laser output device - Google Patents
A kind of continuously adjustabe dual-wavelength laser output device Download PDFInfo
- Publication number
- CN107863680A CN107863680A CN201711469908.7A CN201711469908A CN107863680A CN 107863680 A CN107863680 A CN 107863680A CN 201711469908 A CN201711469908 A CN 201711469908A CN 107863680 A CN107863680 A CN 107863680A
- Authority
- CN
- China
- Prior art keywords
- frequency
- light
- dichroic mirror
- polariscope
- dual
- 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 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims description 25
- 230000010287 polarization Effects 0.000 claims description 16
- 238000007747 plating Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000005304 optical glass Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 239000005350 fused silica glass Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- H01S3/10061—Polarization control
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 provides a kind of continuously adjustabe dual-wavelength laser output device, the program includes speculum, polariscope, polarizer, half wave plate, frequency-doubling crystal and dichroic mirror；Incident basic frequency laser injects polariscope after being transmitted through half wave plate, and after polariscope is divided, transmitted light forms frequency doubled light by frequency-doubling crystal, and frequency doubled light exports after being transmitted through dichroic mirror；The fundamental frequency light of polarizer reflective injects dichroic mirror after polarizer and speculum reflection successively, then after dichroic mirror reflects with frequency doubled light coaxially equidirectional output.
Description
Technical field
The present invention relates to all solid state laser field, especially a kind of continuously adjustabe dual-wavelength laser output device.
Background technology
In the prior art, using nonlinear crystal/device, thus it is possible to vary the frequency/wavelength of fundamental frequency light, effectively expand
The application field of laser.But most of nonlinear crystals have and walk off corner effect so that laser after frequency multiplication with fundamental frequency light not
Can coaxially it export, this is the weak point present in prior art.
The content of the invention
The purpose of the present invention, aiming at the deficiency present in prior art, and a kind of continuously adjustabe dual wavelength is provided and swashed
The technical scheme of light output arrangement, the program can realize that laser dual wavelength energy continuously adjustabe exports, and can effectively expand tune and swash
Light device uses field.
This programme is achieved by the following technical measures：
A kind of continuously adjustabe dual-wavelength laser output device, include speculum, polariscope, polarizer, half wave plate, times
Frequency crystal and dichroic mirror；Incident basic frequency laser injects polariscope after being transmitted through half wave plate, is divided by polariscope
Afterwards, transmitted light forms frequency doubled light by frequency-doubling crystal, and frequency doubled light exports after being transmitted through dichroic mirror；The fundamental frequency light of polarizer reflective
Inject dichroic mirror after polarizer and speculum reflection successively, then after dichroic mirror reflects it is coaxial equidirectional defeated with frequency doubled light
Go out.
As the preferred of this programme：Half wave plate is the quartz crystal of two-sided plating transmission film, and half wave plate
Minute surface it is vertical with optical axis direction.
As the preferred of this programme：Polariscope is optical glass, simultaneously plates P polarization light transmissive films, another side plating S-polarization light
High-reflecting film, and polariscope is put with optical axis in Brewster angle.
As the preferred of this programme：Polarizer can by incidence fundamental frequency light reflect and make the optical axis direction after reflection with again
The optical axis direction of frequency light is parallel.
As the preferred of this programme：The light beam of incidence can be reflected and make optical axis direction and frequency multiplication after reflection by speculum
The optical axis direction of light is vertical.
As the preferred of this programme：Dichroic mirror is optical glass, and two sides is coated with frequency multiplication light transmissive films and fundamental frequency light reflection
Film, and dichroic mirror is put with frequency doubled light optical axis in 45 ° of angles.
As the preferred of this programme：Half wave plate can control the size that polarization state is P and S energy.
The beneficial effect of this programme can be learnt according to the narration to such scheme, because incident fundamental frequency light passes through in this scenario
Half wave plate, its polarization state are changed, partial polarization state be P laser after polariscope, incide frequency multiplication crystalline substance
Frequency multiplication in body, the double-frequency laser after frequency multiplication transmit output after dichroic mirror, not separated by the basic frequency laser of frequency multiplication after dichroic mirror；
Partial polarization state be S laser after polarizer reflective, incided after polarizer, speculum on dichroic mirror reflect output,
So as to realize that dual-wavelength laser exports, the size that polarization state is P and S energy, Jin Ershi can be controlled by half wave plate
The twin wavelength laser output of existing continuously adjustabe.
As can be seen here, the present invention compared with prior art, has substantive distinguishing features and progress, its beneficial effect implemented
It is obvious.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure, 1 is half wave plate, and 2 be polarizer, and 3 be speculum, and 4 be polariscope, and 5 be frequency-doubling crystal, and 6 be double
Look mirror.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
This specification（Including any accessory claim, summary and accompanying drawing）Disclosed in any feature, except non-specifically chatting
State, can alternative features equivalent by other or with similar purpose replaced.I.e., unless specifically stated otherwise, each feature
It is an example in a series of equivalent or similar characteristics.
By accompanying drawing, it can be seen that this programme includes speculum, polariscope, polarizer, half wave plate, frequency multiplication crystalline substance
Body and dichroic mirror；Incident basic frequency laser injects polariscope after being transmitted through half wave plate, after polariscope is divided, thoroughly
Penetrate light and form frequency doubled light by frequency-doubling crystal, frequency doubled light exports after being transmitted through dichroic mirror；The fundamental frequency light of polarizer reflective is successively
Inject dichroic mirror after polarizer and speculum reflection, then after dichroic mirror reflects with frequency doubled light coaxially equidirectional output.
Half wave plate is the quartz crystal of two-sided plating transmission film, and the minute surface of half wave plate is vertical with optical axis direction.Polarization
Mirror is optical glass, simultaneously plates P polarization light transmissive films, another side plating S-polarization light high-reflecting film, and polariscope and optical axis are in Bruce
Special angle swing is put.The fundamental frequency light of incidence can be reflected and put down the optical axis direction of the optical axis direction after reflection and frequency doubled light by polarizer
OK.The light beam of incidence can be reflected and make the optical axis direction after reflection vertical with the optical axis direction of frequency doubled light by speculum.It is double-colored
Mirror is optical glass, and two sides is coated with frequency multiplication light transmissive films and fundamental frequency optical reflection film, and dichroic mirror presss from both sides with frequency doubled light optical axis in 45 °
Angle swing is put.Half wave plate can control the size that polarization state is P and S energy.
In the present embodiment, the speculum is average mirror, clear aperture 30mm, material fused quartz, refractive index 1.45,
1064nm reflectance coatings, reflectivity >=99%；The half wave plate, clear aperture 30mm, wave-length coverage 1064nm ± 1nm；
Polariscope is average mirror, clear aperture 30mm, material fused quartz, refractive index 1.45, two-sided plating 1064nm polarizing coatings, inclined during use
Galvanometer is 56.5 ° with optical axis included angle；Frequency-doubling crystal material is KTP, LBO, bbo crystal, two-sided plating 1064nm, 532nm transmission film,
Size is 10mm × 10mm × 10mm；Dichroic mirror is average mirror, clear aperture 30mm, material fused quartz, and refractive index 1.45 is two-sided
Plating 1064nm is all-trans film and 532 transmission films.Optical element and device shown in Fig. 1 according to sequentially putting.
During implementation, incident 1064nm fundamental frequency lights are changed through half wave plate, its polarization state, and partial polarization state is
P 1064nm laser incides frequency multiplication in frequency-doubling crystal KTP after polariscope, and the 532nm laser after frequency multiplication is after dichroic mirror
Transmission output, is not separated by the 1064nm laser of frequency multiplication after dichroic mirror；The 1064nm laser that partial polarization state is S is by polarization
After mirror reflection, incided after polariscope, speculum and output is reflected on dichroic mirror, so as to realize 1064nm and 532nm dual wavelengths
Laser coaxial exports, and by half wave plate polarization state can be controlled to be the size of P and S energy, and then realize continuously adjustabe
1064nm and 532nm twin wavelength laser outputs.
The invention is not limited in foregoing embodiment.The present invention, which expands to, any in this manual to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (7)
1. a kind of continuously adjustabe dual-wavelength laser output device, it is characterized in that：Include speculum, polariscope, polarizer, two points
One of wave plate, frequency-doubling crystal and dichroic mirror；Incident basic frequency laser injects polariscope after being transmitted through half wave plate, passes through
After polariscope light splitting, transmitted light forms frequency doubled light by frequency-doubling crystal, and frequency doubled light exports after being transmitted through dichroic mirror；Polariscope is anti-
The fundamental frequency light penetrated injects dichroic mirror after polarizer and speculum reflection successively, then after dichroic mirror reflects it is same with frequency doubled light
The equidirectional output of axle.
2. a kind of continuously adjustabe dual-wavelength laser output device according to claim 1, it is characterized in that：The half
Wave plate is the quartz crystal of two-sided plating transmission film, and the minute surface of half wave plate is vertical with optical axis direction.
3. a kind of continuously adjustabe dual-wavelength laser output device according to claim 1, it is characterized in that：The polariscope is
Optical glass, P polarization light transmissive films, another side plating S-polarization light high-reflecting film are simultaneously plated, and polariscope and optical axis are in Brewster angle
Put.
4. a kind of continuously adjustabe dual-wavelength laser output device according to claim 1, it is characterized in that：The polarizer energy
Enough fundamental frequency lights by incidence reflect and make the optical axis direction after reflection parallel with the optical axis direction of frequency doubled light.
5. a kind of continuously adjustabe dual-wavelength laser output device according to claim 1, it is characterized in that：The speculum energy
Enough light beams by incidence reflect and make the optical axis direction after reflection vertical with the optical axis direction of frequency doubled light.
6. a kind of continuously adjustabe dual-wavelength laser output device according to claim 1, it is characterized in that：The dichroic mirror is
Optical glass, two sides is coated with frequency multiplication light transmissive films and fundamental frequency optical reflection film, and dichroic mirror is put with frequency doubled light optical axis in 45 ° of angles
Put.
7. a kind of continuously adjustabe dual-wavelength laser output device according to claim 1, it is characterized in that：The half
Wave plate can control the size that polarization state is P and S energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711469908.7A CN107863680A (en) | 2017-12-29 | 2017-12-29 | A kind of continuously adjustabe dual-wavelength laser output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711469908.7A CN107863680A (en) | 2017-12-29 | 2017-12-29 | A kind of continuously adjustabe dual-wavelength laser output device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107863680A true CN107863680A (en) | 2018-03-30 |
Family
ID=61707642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711469908.7A Pending CN107863680A (en) | 2017-12-29 | 2017-12-29 | A kind of continuously adjustabe dual-wavelength laser output device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107863680A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210050703A1 (en) * | 2019-08-14 | 2021-02-18 | Wuhan Yangtze Soton Laser Co. Ltd. | Ultrafast laser |
| CN115693374A (en) * | 2022-12-30 | 2023-02-03 | 北京东方锐镭科技有限公司 | Laser frequency doubling device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777724A (en) * | 2009-12-25 | 2010-07-14 | 武汉凌云光电科技有限责任公司 | End-pumped dual-wavelength coaxial switching output Q-switched base-frequency and double-frequency laser |
| CN102163794A (en) * | 2011-02-25 | 2011-08-24 | 天津梅曼激光技术有限公司 | Laser device capable of freely switching laser between 1064nm wavelength and 355nm wavelength |
| JP2012252289A (en) * | 2011-06-07 | 2012-12-20 | Nikon Corp | Laser device, exposure apparatus, and inspection apparatus |
| CN104218442A (en) * | 2014-09-29 | 2014-12-17 | 广州安特激光技术有限公司 | 1064nm and 532nm wavelength free switching output laser based on polarization compensator |
| CN106711751A (en) * | 2017-02-08 | 2017-05-24 | 北京宏强富瑞技术有限公司 | All-solid-state dual-wavelength ultrafast laser and working method thereof |
| CN106785874A (en) * | 2017-03-03 | 2017-05-31 | 深圳市杰普特光电股份有限公司 | Laser and its frequency multiplication module |
| CN208111910U (en) * | 2017-12-29 | 2018-11-16 | 中国工程物理研究院应用电子学研究所 | A kind of continuously adjustable dual-wavelength laser output device |
-
2017
- 2017-12-29 CN CN201711469908.7A patent/CN107863680A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777724A (en) * | 2009-12-25 | 2010-07-14 | 武汉凌云光电科技有限责任公司 | End-pumped dual-wavelength coaxial switching output Q-switched base-frequency and double-frequency laser |
| CN102163794A (en) * | 2011-02-25 | 2011-08-24 | 天津梅曼激光技术有限公司 | Laser device capable of freely switching laser between 1064nm wavelength and 355nm wavelength |
| JP2012252289A (en) * | 2011-06-07 | 2012-12-20 | Nikon Corp | Laser device, exposure apparatus, and inspection apparatus |
| CN104218442A (en) * | 2014-09-29 | 2014-12-17 | 广州安特激光技术有限公司 | 1064nm and 532nm wavelength free switching output laser based on polarization compensator |
| CN106711751A (en) * | 2017-02-08 | 2017-05-24 | 北京宏强富瑞技术有限公司 | All-solid-state dual-wavelength ultrafast laser and working method thereof |
| CN106785874A (en) * | 2017-03-03 | 2017-05-31 | 深圳市杰普特光电股份有限公司 | Laser and its frequency multiplication module |
| CN208111910U (en) * | 2017-12-29 | 2018-11-16 | 中国工程物理研究院应用电子学研究所 | A kind of continuously adjustable dual-wavelength laser output device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210050703A1 (en) * | 2019-08-14 | 2021-02-18 | Wuhan Yangtze Soton Laser Co. Ltd. | Ultrafast laser |
| US11621537B2 (en) * | 2019-08-14 | 2023-04-04 | Wuhan Yangtze Soton Laser Co. Ltd. | Ultrafast laser |
| CN115693374A (en) * | 2022-12-30 | 2023-02-03 | 北京东方锐镭科技有限公司 | Laser frequency doubling device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Petrov et al. | Femtosecond nonlinear frequency conversion based on BiB3O6 | |
| US7447245B2 (en) | Optically pumped semiconductor laser pumped optical parametric oscillator | |
| EP2706406B1 (en) | Optical vortex laser vibration method and optical vortex laser vibration device | |
| EP2517320A1 (en) | Ultrafast raman laser systems and methods of operation | |
| CN109196737B (en) | Efficient laser system for third harmonic generation | |
| KR20150129021A (en) | Highly Efficient, Single-Pass, Harmonic Generator with Round Output Beam | |
| US9377667B2 (en) | Cascaded optical harmonic generation | |
| CN103545706B (en) | A kind of all solid state 355nm lasers | |
| CN104953461A (en) | Solid laser based on twisted mode cavity and volume grating | |
| CN109066280A (en) | A kind of power proportions and pulse spacing adjustable dual wavelength light parametric oscillator | |
| CN107863680A (en) | A kind of continuously adjustabe dual-wavelength laser output device | |
| CN208111910U (en) | A kind of continuously adjustable dual-wavelength laser output device | |
| CN103311791A (en) | Femtosecond optical parameter amplifier | |
| US6021140A (en) | Polarization based mode-locking of a laser | |
| CN110932079A (en) | Generation device of fourth harmonic beam | |
| JP3904263B2 (en) | Laser with frequency multiplier | |
| Kieleck et al. | Polarization effects and fiber-laser-pumping of a 2-µm-pumped OP-GaAs OPO | |
| Abdullaev et al. | Difference frequency generation in a GaSe crystal with continuous tuning in the 560–1050 cm–1 range | |
| Qin et al. | Over 20-W mid-infrared picosecond optical parametric oscillator | |
| Liu et al. | Multi-optical parametric oscillator based on electro-optical polarization mode conversion at 3.3 μm and 3.84 μm | |
| US10042231B2 (en) | Method and device for cavity-enhanced broadband intrapulse difference frequency generation | |
| CN208707068U (en) | A kind of power proportions and pulse spacing adjustable dual wavelength light parametric oscillator | |
| Haidar et al. | Temperature tuning of 5–12 μm by difference frequency mixing of OPO outputs in a AgGaS2 crystal | |
| EP2051137A1 (en) | Laser system and method for generating and amplifying optical pulses with a tunable output wavelength between approximately 0.75 and 2.5 µm | |
| US20230404668A1 (en) | Apparatus for laser endo-vascular ablation |
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 |