CN107742819A - Single pump both-end pumping green (light) laser - Google Patents
Single pump both-end pumping green (light) laser Download PDFInfo
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- CN107742819A CN107742819A CN201711193290.6A CN201711193290A CN107742819A CN 107742819 A CN107742819 A CN 107742819A CN 201711193290 A CN201711193290 A CN 201711193290A CN 107742819 A CN107742819 A CN 107742819A
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- 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
- H01S3/094038—End pumping
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- 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
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
- H01S3/109—Frequency multiplication, e.g. harmonic generation
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- 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
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1123—Q-switching
- H01S3/115—Q-switching using intracavity electro-optic devices
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- 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
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1123—Q-switching
- H01S3/117—Q-switching using intracavity acousto-optic devices
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- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Lasers (AREA)
Abstract
A kind of single pump both-end pumping green (light) laser, including pumping source, collimation lens, semi-transparent semi-reflecting lens, the first total reflective mirror, the first condenser lens, the second total reflective mirror, the 3rd total reflective mirror, the second condenser lens, laser crystal, the first end mirror, the second end mirror, turning mirror, the first tail end mirror, the second tail end mirror, adjusting Q crystal, two frequency-doubling crystals, spectroscope and the 4th total reflective mirror；First end mirror, the second end mirror, turning mirror, the first tail end mirror and the second tail end mirror form resonator；Become parallel rays after the collimated lens of pump light that pumping source is sent, then reflected by semi-transparent semi-reflecting lens, part pump light on semi-transparent semi-reflecting lens, part pump light is transmitted through semi-transparent semi-reflecting lens.Single pump both-end pumping green (light) laser of the present invention from the both ends of laser crystal by injecting pump light, make under conditions of gross output requirement is constant, laser crystal it is single-ended because of absorptive pumping light and caused by heat decline, be advantageous to the high power operations of 532nm green (light) lasers.
Description
Technical field
The present invention relates to laser technology, more particularly to a kind of single pump both-end pumping green (light) laser.
Background technology
Laser is one of invention of great significance in modern science technology, wherein, 532nm green lasers are led applied to cold working
Domain, the application value in nonmetallic and Precision Machining are especially prominent.As the whole world increasingly increases the demand of retrofit,
So that the application field of green (light) laser constantly expands.Existing 532nm green (light) lasers often use the work of single end face pump
Mode, but single end face pump is only capable of the application demand for meeting low-power, under the application of high average output power, single-ended face-pumping
Pu often makes the laser crystal in laser often be ftractureed because of uneven heating after absorptive pumping light, causes 532nm green lasers
Device can not be in stable operation under high-output power.
The content of the invention
Based on this, the present invention provides one kind and uses single pump both-end pumping, can meet that the output of high power 532nm green lasers will
The single pump both-end pumping green (light) laser asked.
In order to realize the purpose of the present invention, the present invention uses following technical scheme：
A kind of single pump both-end pumping green (light) laser, including pumping source, collimation lens, semi-transparent semi-reflecting lens, the first total reflective mirror,
First condenser lens, the second total reflective mirror, the 3rd total reflective mirror, the second condenser lens, laser crystal, the first end mirror, the second end mirror, turn
Fold mirror, the first tail end mirror, the second tail end mirror, adjusting Q crystal, two frequency-doubling crystals, spectroscope and the 4th total reflective mirror；The pumping source
For sending pump light；The pump light that the pumping source is sent becomes parallel light after the collimation lens, then passes through
The semi-transparent semi-reflecting lens, a part of pump light reflect on the semi-transparent semi-reflecting lens, and another part pump light is transmitted through institute
State semi-transparent semi-reflecting lens；First end mirror, second end mirror, the turning mirror, the first tail end mirror and second tail
End mirror forms resonator；The laser crystal is provided with the first incidence end and the second incidence end；It is first condenser lens, described
Laser crystal and second condenser lens are between first total reflective mirror and the 3rd total reflective mirror；The first end
For mirror between first condenser lens and the laser crystal, second end mirror is located at second condenser lens and institute
State between laser crystal；The turning mirror is oppositely arranged with first end mirror；The adjusting Q crystal, two frequency-doubling crystal, institute
Spectroscope is stated between second end mirror and the second tail end mirror；The pumping reflected on the semi-transparent semi-reflecting lens
Light, it is parallel after first total reflective mirror reflection to enter first condenser lens, the pump that first total reflective mirror reflects
Pu light focuses on by first condenser lens, and from the incident laser crystal of first incidence end；Transmitted through described half
The pump light of saturating semi-reflective mirror is reflected by second total reflective mirror, the 3rd total reflective mirror successively, and the 3rd total reflective mirror reflects
Pump light focused on by second condenser lens, and from the incident laser crystal of second incidence end；Pump light from
After the incident laser crystal in both ends, the continuous light of 1064nm fundamental frequencies is produced in resonator；Adjusted, obtained by the adjusting Q crystal
To the 1064nm pulsed lights of the roundtrip in the resonator；Along the turning mirror to the direction of the first tail end mirror,
1064nm pulsed lights are after the first tail end mirror reflection along backtracking；Along second end mirror to the second tail end mirror
Direction, 1064nm pulsed lights are injected in two frequency-doubling crystal after the adjusting Q crystal and the spectroscope, produce frequency multiplication
Effect, part 1064nm pulsed lights are converted into 532nm green glow, convert obtained 532nm green glows and remaining 1064nm pulses
Light reflects by the second tail end mirror, and again through two frequency-doubling crystal, and some 1064nm pulsed light converts
For 532nm green glow；532nm green glows obtained by all conversions together pass through the light splitting with remaining 1064nm pulsed lights
Mirror, the dichroic mirror 532nm green glows, transmission 1063nm pulsed lights, 1064nm pulsed lights are transmitted through edge after the spectroscope
Backtracking；532nm laser is by the dichroic mirror to the 4th total reflective mirror, then after the 4th total reflective mirror reflection
Output.
Single pump both-end pumping green (light) laser of the present invention is made total defeated by injecting pump light from the both ends of laser crystal
Go out power requirement it is constant under conditions of, laser crystal it is single-ended because of absorptive pumping light and caused by heat decline, pump light swash
Caused heat is uniformly distributed in laser crystal both sides on luminescent crystal, avoids laser crystal because single-ended heated and that ftractures ask
Topic, be advantageous to the high power operation of 532nm green (light) lasers.
In one of the embodiments, the semi-transparent semi-reflecting lens reflect 50% pump light, 50% pump light of transmission.
In one of the embodiments, first condenser lens by pump light focus in the laser crystal and with institute
The first incidence end is stated at 1~2mm, second condenser lens by pump light focus in the laser crystal and with it is described
Second incidence end is at 1~2mm.
In one of the embodiments, the collimation lens is planoconvex spotlight, and the semi-transparent semi-reflecting lens and the collimation are saturating
The convex surface of mirror is oppositely arranged and relative to the planar tilt of the collimation lens.
In one of the embodiments, first total reflective mirror, second total reflective mirror and the 3rd total reflective mirror are
The high anti-eyeglasses of 808nm or 880nm.
In one of the embodiments, first end mirror, second end mirror are that 808nm or 880nm is anti-reflection, 1064nm
High anti-eyeglass；The first tail end mirror is the high anti-eyeglasses of 1064nm；The second tail end mirror is 1064nm and 532nm high anti-
Eyeglass；The turning mirror is the high anti-eyeglasses of 1064nm.
In one of the embodiments, the adjusting Q crystal is acousto-optic Q crystal or electric light Q crystal.
In one of the embodiments, the laser crystal is Nd:YVO4、Nd:YAG、Nd:YLF or Nd:GVO4.
In one of the embodiments, two frequency-doubling crystal is lithium triborate crystal, potassium titanyl oxygenic phosphate(KTP) crystal, di(2-ethylhexyl)phosphate
Hydrogen potassium crystal or BBO Crystal.
In one of the embodiments, the frequency tripling crystal is lithium triborate crystal or BBO Crystal.
Brief description of the drawings
Fig. 1 is the schematic perspective view of single pump both-end pumping green (light) laser of the preferred embodiment of the present invention.
Embodiment
For the ease of understanding the present invention, the present invention will be described more fully below.But the present invention can be with perhaps
More different form is realized, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is to make
Understanding more thorough and comprehensive to the disclosure.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Referring to Fig. 1, it is single pump both-end pumping green (light) laser 100 of a better embodiment of the invention, for producing
532nm green lasers.Single pump both-end pumping green (light) laser 100 includes pumping source 10, collimation lens 11, semi-transparent semi-reflecting lens
12nd, the first total reflective mirror 13, the first condenser lens 14, the second total reflective mirror 15, the 3rd total reflective mirror 16, the second condenser lens 17, laser
Crystal 20, the first end mirror 21, the second end mirror 22, turning mirror 23, the first tail end mirror 24, the second tail end mirror 25, adjusting Q crystal 26, two
Frequency-doubling crystal 27, the total reflective mirror 29 of spectroscope 28 and the 4th.
Pumping source 10 is used to send pump light, and pumping source 10 can be the pump module for sending 808nm pump lights, can also
It is the PLM for sending 880nm pump lights.In the present embodiment, pumping source 10 is to send 808nm pump lights
PLM.
Collimation lens 11 is planoconvex spotlight, and semi-transparent semi-reflecting lens 12 are located between the total reflective mirror 15 of collimation lens 11 and second, half
The convex surface of saturating semi-reflective mirror 12 and collimation lens 11 is oppositely arranged and relative to the planar tilt of collimation lens 11.
Semi-transparent semi-reflecting lens 12 have 50% pump light of reflection, transmit the characteristic of 50% pump light；The pump that pumping source 10 is sent
Become parallel light after the collimated lens 11 of Pu light, parallel light passes through semi-transparent semi-reflecting lens 12, and a part of pump light is half
Reflected on saturating semi-reflective mirror 12, another part pumping light transmission semi-transparent semi-reflecting lens 12.
Laser crystal 20 is provided with the first incidence end and the second incidence end, and the first incidence end and the second incidence end are respectively to swash
The both ends of luminescent crystal 20；Semi-transparent semi-reflecting lens 12 are relative with the first total reflective mirror 13 close to the one side of collimation lens 11；First focuses on thoroughly
Mirror 14, the condenser lens 17 of laser crystal 20 and second are between the first total reflective mirror 13 and the 3rd total reflective mirror 16.
The pump light reflected on semi-transparent semi-reflecting lens 12, it is parallel after the reflection of the first total reflective mirror 13 to enter the first focusing
Lens 14, the pump light that the first total reflective mirror 13 reflects focus on by the first condenser lens 14, and swash from the first incidence end is incident
Luminescent crystal 20.
Pump light transmitted through semi-transparent semi-reflecting lens 12 is reflected by the second total reflective mirror 15, the 3rd total reflective mirror 16 successively, and the 3rd is complete
The pump light that anti-mirror 16 reflects focuses on by the second condenser lens 17, and from the second incidence end incident laser crystal 20；It is preferred that
Ground, to cause pump light can be preferably overlapping with light path in resonator in laser crystal 20, conversion efficiency be improved, first focuses on
Lens 14 focus on pump light in laser crystal 20 and with the first incidence end at 1~2mm, and the second condenser lens 17 is by pump
Pu light is focused in laser crystal 20 and with the second incidence end at 1~2mm.
Specifically, the first total reflective mirror 13, the second total reflective mirror 15 and the 3rd total reflective mirror 16 are the high anti-mirrors of 808nm or 880nm
Piece；Laser crystal 20 is Nd:YVO4、Nd:YAG、Nd:YLF or Nd:GVO4 crystal.
Between the first condenser lens 14 and laser crystal 20, the second end mirror 22 focuses on saturating first end mirror 21 positioned at second
Between mirror 17 and laser crystal 20；First end mirror 21, the second end mirror 22, turning mirror 23, the first tail end mirror 24 and the second tail end mirror
25 form resonator；Laser crystal 20 is located in resonator, and specifically, laser crystal 20 is located at the first end mirror 21 and the second end mirror
Between 22；First incidence end of the first end mirror 21 and laser crystal 20 is oppositely arranged and inclined relative to the axis of laser crystal 20
Tiltedly, the second incidence end of the second end mirror 22 and laser crystal 20 is oppositely arranged and tilted relative to the axis of laser crystal 20；Turn
Fold mirror 23 is oppositely arranged with the first end mirror 21；Adjusting Q crystal 26, two frequency-doubling crystals 27, spectroscope 28 are located at the second end mirror 22 and
Set in light path between two tail end mirrors 25 and close to the second tail end mirror 25, two frequency-doubling crystals 27 are positioned at the second tail end mirror 25 with dividing
Between light microscopic 28, spectroscope 28 inclines between two frequency-doubling crystals 27 and adjusting Q crystal 26 and with respect to the axis of two frequency-doubling crystals 27
Tiltedly set.
Specifically, the first end mirror 21, the second end mirror 22 are that 808nm or 880nm is anti-reflection, the high anti-eyeglasses of 1064nm, therefore the
One end mirror 21, the second end mirror 22 all have anti-reflection effect for 808nm or 880nm pump lights, have height to 1064nm pulsed lights
Reflex；First tail end mirror 24 is the high anti-eyeglasses of 1064nm, and therefore, the first tail end mirror 24 has for 1064nm pulsed lights
High reflection acts on；Second tail end mirror 25 is the high anti-eyeglasses of 1064nm and 532nm, and therefore, the second tail end mirror 25 is for 1064nm
Pulsed light and 532nm green glows all have high reflection effect；Turning mirror 23 is the high anti-eyeglasses of 1064nm；Adjusting Q crystal 26 is acousto-optic Q
Crystal or electric light Q crystal；Spectroscope 28 is 532nm full-reverse lens；Two frequency-doubling crystals 27 are LBO (lithium triborate crystal), KTP
(potassium titanyl oxygenic phosphate(KTP) crystal), KDP (potassium dihydrogen phosphate crystal) or BBO (BBO Crystal)；4th total reflective mirror 29 is 532nm
It is totally reflected eyeglass.
808nm or 880nm pump light line focus is incided in laser crystal 20, and both-end face-pumping is produced to laser crystal 20
Pu, laser crystal 20 absorb energy and realize that particle inverts, and the continuous light of 1064nm fundamental frequencies is produced in resonator；Pass through adjusting Q crystal
The Q values of 26 pairs of resonators are adjusted, and switch light path break-make, obtain the 1064nm pulsed lights of the roundtrip in resonator.
Along the direction of second the 22 to the second tail end of end mirror mirror 25,1064nm pulsed lights after adjusting Q crystal 26 and spectroscope 28,
Inject in two frequency-doubling crystals 27, when 1064nm pulsed lights pass through two frequency-doubling crystals 27, produce frequency-doubled effect, part 1064nm pulses
Light is converted into 532nm green glow, and it is anti-by the second tail end mirror 25 to convert obtained 532nm green glows and remaining 1064nm pulsed lights
Penetrate, again through two frequency-doubling crystals 27, and some 1064nm pulsed light is converted into 532nm green glow；Thereafter, it is all
Convert the 532nm green glows of gained and remaining 1064nm pulsed lights together pass through spectroscope 28, it is green that spectroscope 28 reflects 532nm
Light, transmission 1063nm pulsed lights, 1064nm pulsed lights are transmitted through along backtracking, continuing the work in resonator after spectroscope 28
Make；532nm laser (L1 in the figure) mirror 28 that is split is reflexed on the 4th total reflective mirror 29, then after the reflection of the 4th total reflective mirror 29 it is defeated
Go out.
Because the remaining 1064nm pulsed lights reflected through the first tail end mirror 24 again pass by two frequency-doubling crystals 27, improve
1064nm pulsed lights, so that under the conditions of Same Efficieney, can reduce the use of two frequency-doubling crystals 27 to the conversion ratio of 532nm green glows
Material, effectively save materials cost.
Along the direction of the tail end of turning mirror 23 to the first mirror 24,1064nm pulsed lights reflect Hou Yanyuan roads through the first tail end mirror 24
Return, continue to work in resonator.
In this practical example, due to resonator by the first end mirror 21, the second end mirror 22, turning mirror 23, the first tail end mirror 24 and
Second tail end mirror 25 is formed, and turning mirror 23 is oppositely arranged with the first end mirror 21, between the first end mirror 21 and the first tail end mirror 24
Light path transferred by turning mirror 23, reduce the space shared by resonator, so as to be more beneficial for realizing the small-sized of laser
Change.
In this practical example, due to pump light respectively from the incidence of the both ends of laser crystal 20, being made in gross output requirement
Under conditions of constant, laser crystal 20 it is single-ended because of absorptive pumping light and caused by heat decline, pump light is in laser crystal 20
Heat caused by upper is uniformly distributed in the both sides of laser crystal 20, avoids the problem of laser crystal 20 ftractures because of single-ended be heated,
Be advantageous to the high power operation of laser.
Further, to ensure respectively from intensity, the consistent wavelength of two strands of incident pump lights of the both ends of laser crystal 20,
So as to ensure that the even heat of the both sides of laser crystal 20 is distributed, in this practical example, semi-transparent semi-reflecting lens 12, the first total reflective mirror are utilized
13rd, single beam pump light that the second total reflective mirror 15 and the 3rd total reflective mirror 16 will be sent by single pumping source 10, is adjusted to two strands never
Enter the pump light of laser crystal 20 with end-fire, make the consistent wavelength of the pump light from both ends incident laser crystal 20, further, since
50% part that semi-transparent semi-reflecting lens 12 are reflected after the pump light collimation that same pumping source 10 is sent, transmits the same institute of pumping source 10
50% part after the pump light collimation sent, ensures the intensity one from two strands of incident pump lights of the both ends of laser crystal 20
Cause, the heat for being subject to crystal both ends is consistent；Due to coming from same pumping source 10 from the pump light of both ends incident laser crystal 20,
After single long-term use of pump both-end pumping green (light) laser 100, from the attenuation degree of the pump light of both ends incident laser crystal 20
Unanimously, so as to avoiding resonator after long-term use from being lacked of proper care because both ends pump light is inconsistent, ensure laser normally export and
The service life of single pump both-end pumping green (light) laser 100 is extended, makes single pump both-end pumping green (light) laser 100 in high power
It can stablize under output and run for a long time.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of single pump both-end pumping green (light) laser, it is characterised in that including pumping source, collimation lens, semi-transparent semi-reflecting lens,
One total reflective mirror, the first condenser lens, the second total reflective mirror, the 3rd total reflective mirror, the second condenser lens, laser crystal, the first end mirror,
Two end mirrors, turning mirror, the first tail end mirror, the second tail end mirror, adjusting Q crystal, two frequency-doubling crystals, spectroscope and the 4th total reflective mirror；Institute
Pumping source is stated to be used to send pump light；The pump light that the pumping source is sent becomes parallel light after the collimation lens,
Then the semi-transparent semi-reflecting lens are passed through, a part of pump light reflects on the semi-transparent semi-reflecting lens, another part pump light
Transmitted through the semi-transparent semi-reflecting lens；First end mirror, second end mirror, the turning mirror, the first tail end mirror and institute
State the second tail end mirror and form resonator；The laser crystal is provided with the first incidence end and the second incidence end；Described first focuses on thoroughly
Mirror, the laser crystal and second condenser lens are between first total reflective mirror and the 3rd total reflective mirror；It is described
Between first condenser lens and the laser crystal, second end mirror focuses on saturating first end mirror positioned at described second
Between mirror and the laser crystal；The turning mirror is oppositely arranged with first end mirror；The adjusting Q crystal, two frequency multiplication
Crystal, the spectroscope are between second end mirror and the second tail end mirror；Reflected on the semi-transparent semi-reflecting lens
Pump light, it is parallel after first total reflective mirror reflection to enter first condenser lens, first total reflective mirror reflection
The pump light gone out focuses on by first condenser lens, and from the incident laser crystal of first incidence end；Transmitted through
The pump light of the semi-transparent semi-reflecting lens is reflected by second total reflective mirror, the 3rd total reflective mirror successively, the 3rd total reflective mirror
The pump light reflected focuses on by second condenser lens, and from the incident laser crystal of second incidence end；Pump
Pu light produces the continuous light of 1064nm fundamental frequencies after the incident laser crystal in both ends in resonator；Adjusted by the adjusting Q crystal
Section, obtains the 1064nm pulsed lights of the roundtrip in the resonator；Along the turning mirror to the side of the first tail end mirror
To 1064nm pulsed lights are after the reflection of the first tail end mirror along backtracking；Along second end mirror to the second tail end mirror
Direction, 1064nm pulsed lights are injected in two frequency-doubling crystal after the adjusting Q crystal and the spectroscope, produce frequency multiplication
Effect, part 1064nm pulsed lights are converted into 532nm green glow, convert obtained 532nm green glows and remaining 1064nm pulses
Light reflects by the second tail end mirror, and again through two frequency-doubling crystal, and some 1064nm pulsed light converts
For 532nm green glow；532nm green glows obtained by all conversions together pass through the light splitting with remaining 1064nm pulsed lights
Mirror, the dichroic mirror 532nm green glows, transmission 1063nm pulsed lights, 1064nm pulsed lights are transmitted through edge after the spectroscope
Backtracking；532nm laser is by the dichroic mirror to the 4th total reflective mirror, then after the 4th total reflective mirror reflection
Output.
2. single pump both-end pumping green (light) laser according to claim 1, it is characterised in that the semi-transparent semi-reflecting lens reflection
50% pump light, 50% pump light of transmission.
3. single pump both-end pumping green (light) laser according to claim 2, it is characterised in that first condenser lens will
Pump light is focused in the laser crystal and with first incidence end at 1~2mm, and second condenser lens is by pump
Pu light is focused in the laser crystal and with second incidence end at 1~2mm.
4. single pump both-end pumping green (light) laser according to claim 1, it is characterised in that the collimation lens is plano-convex
The convex surface of lens, the semi-transparent semi-reflecting lens and the collimation lens is oppositely arranged and inclined relative to the plane of the collimation lens
Tiltedly.
5. single pump both-end pumping green (light) laser according to claim 1, it is characterised in that first total reflective mirror, institute
It is the high anti-eyeglasses of 808nm or 880nm to state the second total reflective mirror and the 3rd total reflective mirror.
6. single pump both-end pumping green (light) laser according to claim 5, it is characterised in that first end mirror, described
Second end mirror is that 808nm or 880nm is anti-reflection, the high anti-eyeglasses of 1064nm；The first tail end mirror is the high anti-eyeglasses of 1064nm；
The second tail end mirror is the high anti-eyeglasses of 1064nm and 532nm；The turning mirror is the high anti-eyeglasses of 1064nm.
7. single pump both-end pumping green (light) laser according to claim 1, it is characterised in that the adjusting Q crystal is acousto-optic Q
Crystal or electric light Q crystal.
8. single pump both-end pumping green (light) laser according to claim 1, it is characterised in that the laser crystal is Nd:
YVO4、Nd:YAG、Nd:YLF or Nd:GVO4.
9. single pump both-end pumping green (light) laser according to claim 1, it is characterised in that two frequency-doubling crystal is three
Lithium tetraborate crystal, potassium titanyl oxygenic phosphate(KTP) crystal, potassium dihydrogen phosphate crystal or BBO Crystal.
10. single pump both-end pumping green (light) laser according to claim 1, it is characterised in that the 4th total reflective mirror is
532nm is totally reflected eyeglass.
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| CN201711193290.6A CN107742819A (en) | 2017-11-24 | 2017-11-24 | Single pump both-end pumping green (light) laser |
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| CN201711193290.6A CN107742819A (en) | 2017-11-24 | 2017-11-24 | Single pump both-end pumping green (light) laser |
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Application publication date: 20180227 |