CN1658449A - External cavity electrically controlled laser wavelength code input method and biwavelength laser module thereof - Google Patents
External cavity electrically controlled laser wavelength code input method and biwavelength laser module thereof Download PDFInfo
- Publication number
- CN1658449A CN1658449A CN 200510011115 CN200510011115A CN1658449A CN 1658449 A CN1658449 A CN 1658449A CN 200510011115 CN200510011115 CN 200510011115 CN 200510011115 A CN200510011115 A CN 200510011115A CN 1658449 A CN1658449 A CN 1658449A
- Authority
- CN
- China
- Prior art keywords
- laser
- output
- wavelength
- crystal
- polarization
- 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
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000010287 polarization Effects 0.000 claims abstract description 106
- 230000003287 optical effect Effects 0.000 claims abstract description 87
- 239000013078 crystal Substances 0.000 claims abstract description 77
- 230000009466 transformation Effects 0.000 claims description 57
- 230000010355 oscillation Effects 0.000 claims description 17
- 230000009977 dual effect Effects 0.000 claims description 14
- 230000009365 direct transmission Effects 0.000 claims description 12
- 241000931526 Acer campestre Species 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 230000009022 nonlinear effect Effects 0.000 claims description 4
- 229910013641 LiNbO 3 Inorganic materials 0.000 claims description 2
- 238000007747 plating Methods 0.000 claims description 2
- 230000002194 synthesizing effect Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 235000009508 confectionery Nutrition 0.000 abstract 1
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008485 antagonism Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Landscapes
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Lasers (AREA)
Abstract
This invention is an output method of coding of external-cavity electric laser wave length and its double wave length laser module, and belongs to the field of non-linear optical laser technology. This invention makes use that the strong selection of the non-linear crystal to the polarization state, uses 1/2 wave voltage added on the optical crystal to switch the polarization state of the outputting laser, in order to use the polarization prismatic components to control the transmission direction of the front laser, and make the laser surge of certain polarization direction not pass through non-linear crystal and output the first wave length directly; and make another laser surge of pass through non-linear crystal and output the second wave length. Because the electric and optical crystal can realize high frequency confection, so it can achieve the fast switching speed of the wave length and the switching is very simple. It can precisely assure the laser of two wave lengths to output through the same optical path and easily achieve high output efficiency and realize wave length coding output. The structure of this invention is reliable, and the cost is low.
Description
Technical field
The present invention relates to the automatically controlled optical maser wavelength code input method of external cavity type and this kind dual-wavelength laser device module, belong to nonlinear optical technology field.
Background technology
Optical parametric oscillator is as working media with nonlinear crystal, place the optical parameter resonant cavity, be beneficial to the nonlinear effect in the crystal, the linear polarization pump energy that will meet matching condition is converted to parametric oscillation flashlight and ideler frequency light, the optical parameter resonant cavity makes flashlight come and go vibration and obtains gain, and forms the laser output of specific wavelength; Nonlinear crystal cuts little ice to the linear polarization pump light that does not meet matching condition simultaneously.
The second harmonic that the laser freuqency doubling foot utilizes light laser to produce by nonlinear crystal is realized.The linearly polarized light energy that meets matching condition will be converted to frequency doubled light; Nonlinear crystal will cut little ice to the linearly polarized light that does not meet matching condition simultaneously.
Electrooptic crystal is by putting on the voltage on the crystal, and the birefringence state that changes crystal changes the input polarization polarized state of light then.Usually is uniaxial crystal under the electrooptic crystal nature, applies the polarization direction half-twist that electrooptic crystal behind 1/2 wave voltage will change into biaxial crystal and make the incoming line polarised light.
Laser photoelectricity antagonism an urgent demand optical maser wavelength can be carried out Wavelength-encoding and be switched as the antagonism of microwave frequency hopping.But dual laser in the past or two kinds of long wavelength lasers are vibrated simultaneously, (for example publication number is CN2269003, CN2363405,1091316 and can't only select certain wavelength output.); Be in light path, to insert, shift out a part of optical element with the method for machinery, perhaps make laser enter different passages and switch output wavelength with mechanical method deflection mirror, the wavelength switch speed is slow, the mechanical positioning difficulty, poor reliability, performance index are difficult to reach higher level, can not adapt to the requirement of weaponry adverse circumstances.(for example publication number is CN1464602, CN1209669, CN1285636, CN1459894, CN1459895, CN1459896.)。
Though it is a kind of with prism chromatic dispersion beam split that notification number has been 2362210 patent disclosure, add the scheme of dispersing prism, Q switching crystal and completely reflecting mirror after the beam split on two kinds of wavelength light path separately, its wavelength conversion speed is very fast, but difficulty is bigger on its optical arrangement; Two kinds of wavelength of output all must be within the tuning range of laser medium, and the wavelength difference is less.
In sum, all existing researchs and patent all do not relate to or are hinting the switching that utilizes output laser polarization state, and then change the method for laser output wavelength.
Summary of the invention
The purpose of this invention is to provide automatically controlled optical maser wavelength code input method of a kind of external cavity type and dual laser module thereof, it is simple that its wavelength is switched, can guarantee accurately that the laser of two kinds of wavelength exports with light path, reach higher output performance index easily, the structural reliability height, manufacturing cost is lower, and can carry out the frequency hopping coding of output wavelength easily.
Technical scheme of the present invention is as follows:
The automatically controlled optical maser wavelength code input method of a kind of external cavity type is characterized in that this method comprises the steps:
1) on the output optical axis of common accent Q polarized pulses laser near the chamber external position of outgoing mirror be provided with electrooptic modulation crystal (2) and with this electrooptic modulation crystal on same optical axis or beam splitting optical axis laser nonlinear frequency transformation device and be used to guarantee pump light two directional pump laser nonlinear frequency transformation device and make the one group optical delivery control element of dual-wavelength laser with optical axis output;
2) when not applying control voltage on the electrooptic crystal, utilize the strong selectivity of laser nonlinear frequency transformation device to polarization state, make front end allow the not influence of Stimulated Light nonlinear frequency transformation device of laser polarization state of vibration, keep front end and transfer the wavelength output of Q polarized pulses laser, export first kind of wavelength;
3) when applying 1/2 λ voltage on the electrooptic crystal, make the laser rays polarization state half-twist of output, utilize the strong selectivity of laser nonlinear frequency transformation device to polarization state, laser nonlinear frequency transformation device will transfer the laser of Q polarized pulses laser output as pump light, and making its nonlinear transformation is second kind of output wavelength.
In the method for the invention, can be according to the waveform that puts on the voltage on the electrooptic crystal, its final output wavelength is a kind of wavelength in the dual wavelength, or two kinds of wavelength alternate coded outputs.The optical parametric oscillation wavelength of frequency multiplication wavelength, degeneracy or single resonance that second wavelength of described output can be first wavelength.
The present invention also provides the automatically controlled laser dual laser of a kind of external cavity type module, it is characterized in that: this laser module comprises that front end transfers Q polarized pulses laser, be arranged on the laser output optical axis near the electrooptic modulation crystal of the chamber external position of outgoing mirror and with the laser nonlinear frequency transformation device of this electrooptic modulation crystal on same optical axis.When applying 1/2 λ voltage on the electrooptic crystal, the laser that laser nonlinear frequency transformation device will be transferred Q polarized pulses solid state laser output to front end is as pump light, and produces the output of second wavelength laser.
On the basis of such scheme, technical characterictic of the present invention also is: this laser module also comprises and is used to guarantee pump light two directional pump laser nonlinear frequency transformation device and makes the one group optical delivery control element of dual-wavelength laser with optical axis output; Described one group of optical delivery control element comprises the polarization splitting prism on same optical axis with electrooptic modulation crystal and laser nonlinear frequency transformation device, lay respectively at two speculums and two optical wave plates on the vertical beam split optical axis in polarization splitting prism both sides, described optical wave plate is between polarization splitting prism and speculum.Perhaps described optical delivery control element comprise with the electrooptic modulation crystal the polarization splitting prism on the same optical axis with vertical beam split optical axis is set on speculum.When electrooptic crystal did not apply voltage, polarization splitting prism was transferred all direct transmission output of parallel polarized light of output of Q polarized pulses laser with front end; When the electrooptic modulation crystal applies 1/2 wave voltage, after quarter wave plate and total reflective mirror 6, through polarization splitting prism it is transmitted through the quarter wave plate on opposite and total reflective mirror rear polarizer state half-twist again, reflection output at last again by polarization splitting prism reflection.
Technical characterictic of the present invention also is: described optical delivery control element comprise with the electrooptic modulation crystal at the polarization splitting prism on the same optical axis be arranged on speculum on this Amici prism reflection optical axis.When electrooptic crystal did not apply voltage, polarization splitting prism was transferred all direct transmission output of parallel polarized light of output of Q polarized pulses laser with front end; When the electrooptic modulation crystal applies 1/2 wave voltage, polarization splitting prism is exported the direct transmission of the parallel polarization parametric oscillation light light that produces, and the pump light of vertical polarization is reflected after through polarization splitting prism its reflection is continued two directional pump laser nonlinear frequency transformation device again after the total reflective mirror reflection.
The present invention also provides the automatically controlled laser dual laser of another kind of external cavity type module, it is characterized in that: this laser module comprises front end accent Q polarized pulses laser, the one group of optical delivery control element that is arranged on the electrooptic modulation crystal of the chamber external position of close outgoing mirror on the laser output optical axis and is arranged on the laser nonlinear frequency transformation device on the vertical optical axis and is used to guarantee pump light two directional pump laser nonlinear frequency transformation device and dual-wavelength laser is exported with optical axis; Described one group of optical delivery control element comprise with the electrooptic modulation crystal the polarization splitting prism on the same optical axis be arranged on vertical beam split optical axis on speculum and the synthetic dichroic mirror of light path.When electrooptic crystal did not apply voltage, polarization splitting prism was transferred all direct transmission output of parallel polarized light of output of Q polarized pulses laser with front end; When the electrooptic modulation crystal applies 1/2 wave voltage, polarization splitting prism is exported the direct transmission of the parallel polarization parametric oscillation light light that produces, and the pump light of vertical polarization is reflected after through polarization splitting prism its reflection is continued two directional pump laser nonlinear frequency transformation device again after the total reflective mirror reflection.
The wavelength of described accent Q polarized pulses laser is any optical maser wavelength that can produce nonlinear effect, for example the 1.06 μ m optical maser wavelengths of Nd:YAG and its frequency multiplication wavelength 0.53 μ m; The nonlinear crystal of laser nonlinear frequency transformation device comprises KTP, KTA or LiNbO
3, LBO and BBO, KD
*P, CD
*A, ADP, PPLN and KDP crystal.
The present invention compared with prior art has the following advantages and the high-lighting effect:
This method is utilized the strong selectivity of nonlinear crystal to polarization state, (leakage current is very small with putting on 1/2 wave voltage on the electrooptic crystal, power consumption is extremely low) switching of exporting the laser polarization state, and then utilize the strong selectivity of laser nonlinear frequency transformation device to polarization state, make the linearly polarized light energy pumping nonlinear optical device as far as possible losslessly that meets matching condition, and the linearly polarized light energy that does not meet matching condition there is suitable coupling output.Because electrooptic crystal can be realized high frequency modulated,, realize Wavelength-encoding output easily so the present invention can realize sufficiently high wavelength conversion speed; In addition, the formed wavelength of nonlinear frequency transformation can not have unnecessary restriction to laser working medium away from first output wavelength yet.The present invention has wavelength and switches simply, can guarantee accurately that the laser of two kinds of wavelength exports with light path, reaches higher output performance index easily, the structural reliability height, and manufacturing cost is lower.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of the automatically controlled laser dual laser of external cavity type provided by the invention module.
Fig. 2 is the structural representation of second kind of embodiment provided by the invention.
Fig. 3 is the structural representation of the third embodiment provided by the invention.
Fig. 4 is for being the structural representation of another kind of embodiment provided by the invention.
Embodiment
Below in conjunction with accompanying drawing concrete structure of the present invention and operation principle are further described.
The present invention utilizes the strong selectivity of nonlinear crystal to polarization state, (leakage current is very small with putting on 1/2 wave voltage on the electrooptic crystal, power consumption is extremely low) switching of exporting the laser polarization state, and then utilize the strong selectivity of laser nonlinear frequency transformation device to polarization state, be of the transmission direction of laser nonlinear frequency transformation device, make the laser generation of a certain linear polarization directly not export first kind of wavelength by nonlinear crystal to a kind of laser beam splitter control front end laser of polarization direction; And the laser generation of another linear polarization is by second kind of optical maser wavelength of nonlinear crystal output.Its concrete steps are as follows:
1) on the output optical axis of common accent Q polarized pulses laser 1 near the chamber external position of outgoing mirror be provided with the electrooptic modulation crystal 2 and with this electrooptic modulation crystal on same optical axis or beam splitting optical axis laser nonlinear frequency transformation device 3 and be used to guarantee pump light two directional pump laser nonlinear frequency transformation device and make the one group optical delivery control element of dual-wavelength laser with optical axis output;
2) when not applying control voltage on the electrooptic crystal 2, utilize the strong selectivity of 3 pairs of polarization states of laser nonlinear frequency transformation device, make front end allow the not influence of Stimulated Light nonlinear frequency transformation device of laser polarization state of vibration, keep front end and transfer the wavelength output of Q polarized pulses laser, export first kind of wavelength;
3) when applying 1/2 λ voltage on the electrooptic crystal, make the laser rays polarization state half-twist of output, utilize the strong selectivity of laser nonlinear frequency transformation device to polarization state, laser nonlinear frequency transformation device will transfer the laser of Q polarized pulses laser output as pump light, and making its nonlinear transformation is second kind of output wavelength.
In said method, can be according to the waveform that puts on the voltage on the electrooptic crystal, its final output wavelength is a kind of wavelength in the dual wavelength, or two kinds of wavelength alternate coded outputs.The optical parametric oscillation wavelength of frequency multiplication wavelength, degeneracy or single resonance that to export second wavelength can be first wavelength.
Be several specific embodiment of the present invention below:
The single resonance parametric oscillation flashlight that 1: the second output wavelength of embodiment is the noncritical phase matching of II class.As shown in Figure 2, the present invention is that the chamber external position near outgoing mirror adds an electrooptic modulation crystal 2 and laser nonlinear frequency transformation device 3 on common accent Q polarized pulses solid state laser output optical axis, when it does not apply voltage, it to output the laser rays polarization state without any influence; Transfer this moment the linear polarization of Q polarized pulses solid state laser 1 output just in time vertical with the laser nonlinear frequency transformation device 3 desired polarization directions of II class noncritical phase matching, optical parametric oscillator (laser nonlinear frequency transformation device) will not produce any influence to its output, keep the wavelength output that front end is transferred Q polarized pulses laser; When it applies voltage 1/2 wave voltage, it makes the laser rays polarization state half-twist of output, transfer this moment the linear polarization of Q ND:YAG laser output just in time identical with the laser nonlinear frequency transformation device 3 desired polarization directions of II class noncritical phase matching, the laser that laser nonlinear frequency transformation device 3 will be transferred Q polarized pulses solid state laser 1 output to front end is as pump light, and produces the output of second wavelength laser.Not enough is this moment, the laser nonlinear frequency transformation device 3 of II class noncritical phase matching can only be unidirectional pumping configuration, and efficient is lower.
Any nonlinear optics conversion wavelength (comprising the frequency multiplication wavelength, the optical parametric oscillation signal light wavelength of degeneracy or single resonance) that 2: the second output wavelengths of embodiment are two directional pump
As shown in Figure 3, the difference of it and embodiment 1 individual event pumping is to add a polarization splitting prism 4 in common accent Q polarized pulses solid state laser chamber 1 and electrooptic crystal 2 back, when its electrooptic crystal 2 does not apply voltage, it to output the laser rays polarization state without any influence; Transfer this moment the linear polarization of Q polarized pulses solid state laser output just in time to be the laser of parallel polarization, it will see through polarization splitting prism 4 and dichroic mirror 7 fully, keep the wavelength output that front end is transferred Q polarized pulses laser; When it applies voltage 1/2 wave voltage, it makes the laser rays polarization state half-twist of output, become the laser of vertical polarization, it will be polarized Amici prism 4 reflections and enter reflection optical axis, its linear polarization is just in time identical with laser nonlinear frequency transformation device 3 desired polarization directions, become the pump light of laser nonlinear frequency transformation device, and produce the output of second wavelength laser.The effect of speculum 6 is that the laser polarization of second wavelength output is whole to exporting with light path with the laser of front end polarization Q pulse laser output.Plated film requires: dichroic mirror 7 output faces plating front end is transferred the anti-reflection film of Q polarized pulses laser output wavelength and the high-reflecting film of nonlinear properties light.
The double resonance parametric oscillation optical wavelength of the II class noncritical phase matching that 3: the second output wavelengths of embodiment are degeneracy.
The output of the double resonance optical parametric oscillation of the II class noncritical phase matching of degeneracy is that two linear polarization have, so its embodiment has its particularity.But because the output wavelength of the double resonance optical parametric oscillator of the critical phase matched of II class of degeneracy is one times of its pump light, so the quarter wave plate of parametric oscillation light is exactly 1/2 wave plate of pump light.Utilize this characteristic, we are on the basis of embodiment 1, add in laser nonlinear frequency transformation device 3 (in the present embodiment for single resonance optical parametric oscillator) back that promptly 5 and two total reflective mirrors 6 of quarter wave plate (also being 1/2 wave plate of pump light) of 4, two parametric oscillation light of a polarization splitting prism just can realize.Its principle as shown in Figure 1.Only be when electrooptic crystal 2 does not apply voltage with the difference of embodiment 1 on the principle, after the polarization splitting prism 4 that adds front end can be transferred all direct transmission output of parallel polarized lights of output of Q polarized pulses laser; When the electrooptic modulation crystal 2 applies 1/2 wave voltage, it makes the laser rays polarization state half-twist of output, become the laser of vertical polarization, its linear polarization is just in time identical with laser nonlinear frequency transformation device 3 desired polarization directions, become the pump light of laser nonlinear frequency transformation device, and produce the output of second wavelength laser.The residual pump light of unidirectional pumping will be polarized Amici prism 4 reflections and enter reflected light path, its 1/2 wave plate, 5 rear polarizer states of twice process of this part pump light do not change under the effect of completely reflecting mirror 6, and polarization splitting prism 4 continues two directional pump laser nonlinear frequency transformation devices 3 (being optical parametric oscillator in the present embodiment) with its reflected back laser nonlinear frequency transformation device 3; The output light of parallel polarization is by polarization splitting prism 4 direct transmission outputs in the parametric oscillation light that produces, the output light of vertical polarization is polarized Amici prism 4 reflections and enters reflected light path, twice its quarter wave plate rear polarizer state half-twist of process under the effect of completely reflecting mirror 6, polarization splitting prism is transmitted through the quarter wave plate on opposite and total reflective mirror 6 rear polarizer states half-twist again, reflection output at last with it.
The single resonance parametric oscillation signal light wavelength that 4: the second output wavelengths of embodiment are the noncritical phase matching of I class or the frequency multiplication wavelength of the tuning angle of I class
Because the single resonance parametric oscillation light of I class noncritical phase matching, or the linear polarization of the frequency doubled light of the tuning angle of I class is all vertical with the linear polarization of pump light.Like this on the basis of embodiment 1 scheme, add in the back of the described device of embodiment that promptly a polarization splitting prism 4 and a total reflective mirror 6 just can realize.Its theory structure only is being when electrooptic crystal 2 does not apply voltage with the difference of embodiment 1 on the principle as shown in Figure 4, after the polarization splitting prism 4 that adds can be with all direct transmission output of parallel polarized lights of output of front end polarization Q pulse laser 1; When the electrooptic modulation crystal 2 applies 1/2 wave voltage, after the polarization splitting prism 4 that adds can be with the direct transmission output of the parallel polarization parametric oscillation light light that produces, and the pump light of vertical polarization is reflected downwards, pump light does not change through total reflective mirror 6 reflection rear polarizer states, and polarization splitting prism continues two directional pump optical parametric oscillator (laser nonlinear frequency transformation device) with its reflected back left side.
Claims (8)
1. the automatically controlled optical maser wavelength code input method of external cavity type is characterized in that this method comprises the steps:
1) on the output optical axis of common accent Q polarized pulses laser near the chamber external position of outgoing mirror be provided with electrooptic modulation crystal (2) and with this electrooptic modulation crystal on same optical axis or beam splitting optical axis laser nonlinear frequency transformation device and be used to guarantee pump light two directional pump laser nonlinear frequency transformation device and make the one group optical delivery control element of dual-wavelength laser with optical axis output;
2) when not applying control voltage on the electrooptic crystal, utilize the strong selectivity of laser nonlinear frequency transformation device to polarization state, make front end allow the not influence of Stimulated Light nonlinear frequency transformation device of laser polarization state of vibration, keep front end and transfer the wavelength output of Q polarized pulses laser, export first kind of wavelength;
3) when applying 1/2 λ voltage on the electrooptic crystal, make the laser rays polarization state half-twist of output, utilize the strong selectivity of laser nonlinear frequency transformation device to polarization state, laser nonlinear frequency transformation device will transfer the laser of Q polarized pulses laser output as pump light, and making its nonlinear transformation is second kind of output wavelength.
2. according to the described method of claim 1, it is characterized in that: according to the waveform that puts on the voltage on the electrooptic crystal, its final output wavelength is a kind of wavelength in the dual wavelength, or two kinds of wavelength alternate coded outputs.
3. it is characterized in that in accordance with the method for claim 1: the optical parametric oscillation wavelength of frequency multiplication wavelength, degeneracy or single resonance that second wavelength of described output is first wavelength.
4. implement the dual laser module of method according to claim 1 for one kind, contain and transfer Q polarized pulses laser (1), it is characterized in that: laser module also comprise be provided with on the output optical axis of transferring Q polarized pulses solid state laser (1) near the electrooptic modulation crystal (2) of the chamber external position of outgoing mirror and with the laser nonlinear frequency transformation device (3) of this electrooptic modulation crystal on same optical axis; When not applying control voltage on the electrooptic crystal, keep the wavelength output that front end is transferred Q polarized pulses laser; When applying 1/2 λ voltage on the electrooptic crystal, the laser that laser nonlinear frequency transformation device will be transferred Q polarized pulses solid state laser (1) output to front end is as pump light, and produces the output of second wavelength laser.
5. according to the described dual laser module of claim 4, it is characterized in that: this laser module also comprises and is used to guarantee pump light two directional pump laser nonlinear frequency transformation device and makes the one group optical delivery control element of dual-wavelength laser with optical axis output; Described one group of optical delivery control element comprises the polarization splitting prism (4) on same optical axis with electrooptic modulation crystal (2) and laser nonlinear frequency transformation device (3), lay respectively at two speculums (6) and two optical wave plates (5) on the vertical beam split optical axis in polarization splitting prism (4) both sides, described optical wave plate (5) is between polarization splitting prism and speculum; When electrooptic crystal (2) when not applying voltage, polarization splitting prism is transferred all direct transmission output of parallel polarized lights of output of Q polarized pulses laser with front end; When the electrooptic modulation crystal applies 1/2 wave voltage, after quarter wave plate and total reflective mirror 6, through polarization splitting prism it is transmitted through the quarter wave plate on opposite and total reflective mirror 6 rear polarizer states half-twist again, reflection output at last again through mirror polarization splitting prism reflection.
6. according to the described dual laser module of claim 4, it is characterized in that: this laser module also comprises and is used to guarantee pump light two directional pump laser nonlinear frequency transformation device and makes the one group optical delivery control element of dual-wavelength laser with optical axis output; Described optical delivery control element comprise with electrooptic modulation crystal (2) at the polarization splitting prism on the same optical axis (4) be arranged on speculum (6) on this Amici prism reflection optical axis; When electrooptic crystal did not apply voltage, polarization splitting prism was transferred all direct transmission output of parallel polarized light of output of Q polarized pulses laser with front end; When the electrooptic modulation crystal applies 1/2 wave voltage, polarization splitting prism is exported the direct transmission of the parallel polarization parametric oscillation light light that produces, and the pump light of vertical polarization is reflected after through polarization splitting prism its reflection is continued two directional pump laser nonlinear frequency transformation device again after total reflective mirror (6) reflection.
7. implement the dual laser module of method according to claim 1 for one kind, contain and transfer Q polarized pulses laser (1), it is characterized in that: this laser module also comprises electrooptic modulation crystal (2) and the polarization splitting prism (4) that is arranged on the chamber external position of close outgoing mirror on the output optical axis of transferring Q polarized pulses solid state laser (1), be arranged on laser nonlinear frequency transformation device (3) in the polarization splitting prism reflected light path and make dual-wavelength laser, the anti-reflection film of the output face of dichroic mirror plating front end accent Q polarized pulses laser output wavelength and the high-reflecting film of non-linear output light with two speculums (6) and dichroic mirror (7) on the synthetic light path of optical axis output; When its electrooptic crystal 2 did not apply voltage, the laser of the parallel polarization of polarization Q pulsed solid stale laser output saw through polarization splitting prism 4 and dichroic mirror 7 fully, kept the wavelength output that front end is transferred Q polarized pulses laser; When it applied voltage 1/2 wave voltage, the laser of the parallel polarization of laser output became the pump light of laser nonlinear frequency transformation device after polarization splitting prism 4 reflections, exported after synthesizing two speculums on the light path and dichroic mirror again.
8. according to the described dual laser module of the arbitrary claim of claim 3～7, it is characterized in that: the wavelength of described accent Q polarized pulses laser (1) is the optical maser wavelength that can produce nonlinear effect; The nonlinear crystal of laser nonlinear frequency transformation device comprises KTP, KTA or LiNbO
3, LBO and BBO, KD
*P, CD
*A, ADP, PPLN and KDP crystal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100111151A CN100364186C (en) | 2005-01-07 | 2005-01-07 | External cavity electrically controlled laser wavelength code input method and biwavelength laser module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100111151A CN100364186C (en) | 2005-01-07 | 2005-01-07 | External cavity electrically controlled laser wavelength code input method and biwavelength laser module thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1658449A true CN1658449A (en) | 2005-08-24 |
| CN100364186C CN100364186C (en) | 2008-01-23 |
Family
ID=35007767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100111151A Expired - Fee Related CN100364186C (en) | 2005-01-07 | 2005-01-07 | External cavity electrically controlled laser wavelength code input method and biwavelength laser module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100364186C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025783A (en) * | 2016-06-06 | 2016-10-12 | 中国工程物理研究院应用电子学研究所 | Q-switched pulse laser for quickly switching polarization states |
| CN106329304A (en) * | 2016-11-14 | 2017-01-11 | 天津津航技术物理研究所 | Polarized controllable laser-cavity mirror |
| 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 |
| CN107069409A (en) * | 2017-01-20 | 2017-08-18 | 西北核技术研究所 | A kind of double-wavelength pulse of exocoel actively Q-switched alternately exports laser aid and method |
| CN110048297A (en) * | 2019-04-28 | 2019-07-23 | 中国人民解放军63889部队 | A kind of four wavelength free switching laser systems |
| CN110752503A (en) * | 2019-05-09 | 2020-02-04 | 长春理工大学 | Single longitudinal mode and non-single longitudinal mode double-pulse laser alternate Q-switching output method and laser |
| CN113054524A (en) * | 2021-03-18 | 2021-06-29 | 中国科学院空天信息创新研究院 | Time-sharing synthesized optical parametric oscillation device |
| CN115376881A (en) * | 2022-10-10 | 2022-11-22 | 山东省科学院激光研究所 | Double-optical-path time delay adjustable device for double-beam laser mass spectrum ionization source |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0688979A (en) * | 1992-09-08 | 1994-03-29 | Sumitomo Cement Co Ltd | Q switch/second harmonic generating combined element |
| JPH06334252A (en) * | 1993-05-21 | 1994-12-02 | Nec Corp | Laser oscillator |
| US5987041A (en) * | 1997-04-23 | 1999-11-16 | Mitsubishi Cable Industries, Ltd. | Laser apparatus and method for emission of laser beam using same |
| CN1116723C (en) * | 1997-08-25 | 2003-07-30 | 中国科学院福建物质结构研究所 | Double wave-length vibration passive double modulating Q laser |
| JP2002107779A (en) * | 2000-10-03 | 2002-04-10 | Toshiba Corp | Wavelength conversion method, wavelength converter and laser device |
| CN1225066C (en) * | 2002-12-11 | 2005-10-26 | 中国科学院安徽光学精密机械研究所 | Homo-light-beam double-wavelength double-pulse laser generating method |
-
2005
- 2005-01-07 CN CNB2005100111151A patent/CN100364186C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025783A (en) * | 2016-06-06 | 2016-10-12 | 中国工程物理研究院应用电子学研究所 | Q-switched pulse laser for quickly switching polarization states |
| CN106329304A (en) * | 2016-11-14 | 2017-01-11 | 天津津航技术物理研究所 | Polarized controllable laser-cavity mirror |
| CN107069409A (en) * | 2017-01-20 | 2017-08-18 | 西北核技术研究所 | A kind of double-wavelength pulse of exocoel actively Q-switched alternately exports laser aid and method |
| CN107069409B (en) * | 2017-01-20 | 2020-05-05 | 西北核技术研究所 | Dual-wavelength pulse alternate output laser device and method with external cavity actively adjusting Q |
| 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 |
| CN106711751B (en) * | 2017-02-08 | 2023-10-24 | 北京宏强富瑞技术有限公司 | All-solid-state dual-wavelength ultrafast laser and working method thereof |
| CN110048297A (en) * | 2019-04-28 | 2019-07-23 | 中国人民解放军63889部队 | A kind of four wavelength free switching laser systems |
| CN110048297B (en) * | 2019-04-28 | 2024-09-27 | 中国人民解放军63895部队 | Four-wavelength free switching laser system |
| CN110752503A (en) * | 2019-05-09 | 2020-02-04 | 长春理工大学 | Single longitudinal mode and non-single longitudinal mode double-pulse laser alternate Q-switching output method and laser |
| CN113054524A (en) * | 2021-03-18 | 2021-06-29 | 中国科学院空天信息创新研究院 | Time-sharing synthesized optical parametric oscillation device |
| CN115376881A (en) * | 2022-10-10 | 2022-11-22 | 山东省科学院激光研究所 | Double-optical-path time delay adjustable device for double-beam laser mass spectrum ionization source |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100364186C (en) | 2008-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100364187C (en) | Internal cavity electrically controlled wavelength code output method and biwavelength laser module thereof | |
| CN1658449A (en) | External cavity electrically controlled laser wavelength code input method and biwavelength laser module thereof | |
| CN100345346C (en) | Multi wave length simultaneously output full solid state tunnable laser light source | |
| CN101335424A (en) | Polarization coupled parallel Q modulating solid laser | |
| CN102163794A (en) | Laser device capable of freely switching laser between 1064nm wavelength and 355nm wavelength | |
| CN113314939B (en) | Multi-wavelength mid-infrared laser energy ratio regulation and control amplifier based on Nd-MgO-APLN crystal | |
| CN102280808A (en) | Self-frequency doubling laser device | |
| CN1905294A (en) | LD pumping cogain double cavity very-large frequency difference double frequency Nd:YAG laser | |
| CN110752503B (en) | Single longitudinal mode and non-single longitudinal mode double-pulse laser alternate Q-switching output method and laser | |
| CN113314940B (en) | Multi-wavelength mid-infrared laser pulse train cavity emptying laser based on Nd, MgO and APLN crystals | |
| CN103311792A (en) | Littrow configuration electro-optical Q-switched frequency-doubled laser | |
| CN101304150A (en) | Structure of micro-slice type electro-optical Q-switching laser | |
| CN110932070B (en) | Dual-wavelength alternating Q-switching narrow pulse laser and output method | |
| CN111755943B (en) | Optical parametric oscillator based on pulse laser pumping and working method | |
| CN110932069B (en) | Ultrahigh repetition frequency narrow pulse single-wavelength alternate Q-switched laser output method and laser | |
| CN110829172B (en) | Laser output method with repetition frequency 2 times electro-optic Q-switched frequency and laser | |
| CN2882042Y (en) | Whole solid quasi-continuous broadband near-infrared coherent light source | |
| CN102723661A (en) | Electro-optic Q-switching and acousto-optic Q-switching pulse laser capable of quickly converting Q-switching modes | |
| CN1200491C (en) | High-power semiconductor laser frequency converter | |
| CN2800595Y (en) | Tunable titanium sapphire laser capable of full solid-state quasi- continuous dual wavelength operation | |
| CN220401095U (en) | Laser resonant cavity capable of controlling intracavity structure | |
| CN202749676U (en) | End-pumped dual-wavelength coaxial switching output laser device | |
| CN1123104C (en) | Laser capable of simultaneously outputting three colors of red, green and blue | |
| CN2772074Y (en) | Intracavity frequency doubling micro plate laser | |
| CN111048985B (en) | Dual-wavelength single-longitudinal-mode laser alternate Q-switching output method and 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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 Termination date: 20190107 |