CN106684683B - Continuous and superimposed pulses formula single beam solid state laser - Google Patents
Continuous and superimposed pulses formula single beam solid state laser Download PDFInfo
- Publication number
- CN106684683B CN106684683B CN201611163811.9A CN201611163811A CN106684683B CN 106684683 B CN106684683 B CN 106684683B CN 201611163811 A CN201611163811 A CN 201611163811A CN 106684683 B CN106684683 B CN 106684683B
- Authority
- CN
- China
- Prior art keywords
- laser
- wavelength
- mirror
- polarizer
- coated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08059—Constructional details of the reflector, e.g. shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08086—Multiple-wavelength emission
Abstract
The disclosure discloses a kind of continuous and superimposed pulses formula single beam solid state laser, and the unpolarized stimulated radiation fluorescence of tri- kinds of wavelength of 946nm, 1064nm and 1319nm that Nd:YAG crystal generates simultaneously is decomposed into the s- polarization excited fluorescence of respective wavelength through polarizer with the laser and p- polarizes stimulated radiation fluorescence.It is being adjusted using motorized precision translation stage in compound first resonant cavity of multiple groups, the second resonant cavity that reflecting mirror and outgoing mirror constituted, the s- polarization excited fluorescence and p- polarization stimulated radiation fluorescence of respective wavelength are respectively completed oscillation amplification, realize that the s- polarization continuous laser of respective wavelength and p- polarized pulses laser export simultaneously and beam is closed in equidirectional superposition, three kinds of wavelength can be obtained respectively and there is continuous plus pulse characteristic laser beam, and the processing technologies efficiency such as laser drill, laser marking, laser scoring can be improved in such laser beam.The laser structure of the disclosure is compact, reliable for operation, has very strong practicability.
Description
Technical field
This disclosure relates to laser technology field, and in particular to a kind of continuous and superimposed pulses that the output of three kinds of wavelength can be achieved
Formula single beam solid state laser.
Background technique
Currently, laser drill, laser marking have been widely used for all kinds of accurate industrial processing fielies.It is sharp in order to improve
Drill finish hole, laser marking efficiency, people are by powerful continuous laser irradiation material and while making its fusing, by narrow arteries and veins
Rush width, the pulse laser of high-peak power makes irradiation zone sputtering of materials and vaporization in cladding state, to realize fast
Fast, efficient laser drill, laser marking.
Conventional method is that the laser for exporting the laser that one continuously exports with a pulse is combined at present, will
Continuous laser and pulse laser carry out space overlapping and close beam, generate the continuous and superimposed pulses laser beam with single beam form.
Although that such method can have that there are two types of the laser beams of characteristic is controllable, can obtain stable continuous and superimposed pulses formula laser beam
The advantages of, but due to using two lasers, cause the with high costs, bulky of system, operation complexity, optical maser wavelength solid
Order one limits it in the application range of field of laser processing.
Summary of the invention
To solve the above-mentioned problems, the disclosure provides one kind and is based on composite resonant cavity configuration, can export continuous and pulse
Superposing type single beam solid state laser.
The continuous and superimposed pulses formula single beam solid state laser includes: first kind plano-concave reflecting mirror, the first polarization member
Part (7), first kind flat output mirror, the second class flat output mirror, in which:
The first kind plano-concave reflecting mirror, the first polarizer (7), first kind flat output mirror form the first resonant cavity；
The first kind plano-concave reflecting mirror, the second class flat output mirror form the second resonant cavity；
First polarizer (7) is located between first kind plano-concave reflecting mirror and the second class flat output mirror, three's
Optical center is point-blank；
There are Q switched element (12) between the first polarizer (7) and the second class flat output mirror, the optical center of three is at one
On straight line；
There is stimulated radiation light source between the first kind plano-concave reflecting mirror (1) and the first polarizer (7), it is non-for generating
Polarize stimulated radiation fluorescence；
The unpolarized stimulated radiation fluorescence through the first polarizer (7) be decomposed into s- polarization excited fluorescence and p- polarization by
Swash radiofluorescence；
S- polarization stimulated radiation fluorescence output s- after the amplification of the first internal oscillation polarizes continuous laser；
The p- polarization stimulated radiation fluorescence is modulated through Q switched element (12), is exported after oscillation amplification in the second resonant cavity
P- polarized pulses laser；
The s- polarization continuous laser overlaps on same propagation direction with p- polarized pulses laser.
Further, the radius of curvature of the first kind plano-concave reflecting mirror is 1000nm, including the first plano-concave reflecting mirror
(1), the second plano-concave reflecting mirror (2), third plano-concave reflecting mirror (3), in which:
The plane of the first plano-concave reflecting mirror (1) is coated with the double-colored anti-reflection film of 0 ° of incidence 1064nm, 1319nm wavelength,
Concave surface is coated with the high-reflecting film of 0 ° of incidence 946nm wavelength and the double-colored anti-reflection film of 1064nm, 1319nm wavelength；
Plated film, the height that concave surface is coated with 0 ° of incident 1064nm wavelength be not anti-for the plane of the second plano-concave reflecting mirror (2)
Film；
The plane of the third plano-concave reflecting mirror (3) is coated with the anti-reflection film of 0 ° of incidence 1064nm wavelength, and concave surface is coated with 0 °
The high-reflecting film of incident 1319nm wavelength and the anti-reflection film of 1064nm wavelength.
Further, the first kind flat output mirror includes the first outgoing mirror (8), the second outgoing mirror (9), third output
Mirror (10), in which:
The part that plane of first outgoing mirror (8) close to the first polarizer (7) is coated with 0 ° of incidence 946nm wavelength is anti-
The double-colored anti-reflection film of film and 1064nm, 1319nm wavelength is penetrated, another plane is coated with 0 ° of incidence 946nm, 1064nm, 1319nm wave
Three long color anti-reflection films；
Plane of second outgoing mirror (9) close to the first polarizer (7) is coated with the part of 0 ° of incidence 1064nm wavelength
Reflectance coating, another plane are coated with the anti-reflection film of 0 ° of incidence 1064nm wavelength；
Plane of the third outgoing mirror (10) close to the first polarizer (7) is coated with the part of 0 ° of incidence 1319nm wavelength
The anti-reflection film of reflectance coating and 1064nm wavelength, another plane are coated with the double-colored anti-reflection film of 0 ° of incidence 1064nm, 1319nm wavelength.
Further, the second class flat output mirror include the 4th outgoing mirror (13), it is the 5th outgoing mirror (14), the 6th defeated
Appearance (15), in which:
Plane of 4th outgoing mirror (13) close to the first polarizer (7) is coated with the 0 ° of incidence part 946nm reflectance coating
With the double-colored anti-reflection film of 1064nm, 1319nm wavelength, another plane is coated with 0 ° of incidence 946nm, 1064nm, 1319nm wavelength
Three color anti-reflection films；
Plane of 5th outgoing mirror (14) close to the first polarizer (7) is coated with 0 ° of part incidence 1064nm and reflects
Film, another plane are coated with the anti-reflection film of 0 ° of incident 1064nm wavelength；
Plane of 6th outgoing mirror (15) close to the first polarizer (7) is coated with the 0 ° of incidence part 1319nm reflectance coating
With the anti-reflection film of 1064nm wavelength, another plane is coated with the double-colored anti-reflection film of 0 ° of incidence 1064nm, 1319nm wavelength.
Further, the first kind plano-concave reflecting mirror is located on the first motorized precision translation stage (4), first kind flat output mirror
Positioned on the second motorized precision translation stage (11), the second class flat output mirror is located on third motorized precision translation stage (16)；
The first kind plano-concave reflecting mirror, first kind flat output mirror, the second class flat output mirror position can lead to
Motorized precision translation stage where crossing it is adjusted along the same rectilinear direction perpendicular to respective optical path.
Further, the Q switched element is acousto-optic crsytal (12).
Further, the s- polarization continuous laser is after the output of first kind flat output mirror, successively through the second polarization member
Part (17), third polarizer (18), the reflection of the 4th polarizer (19), it is inclined with the p- through the 4th polarizer (19) total transmissivity
Vibration pulse laser overlaps on same propagation direction.
Further, s- polarization continuous laser is in second polarizer (17), third polarizer (18), the
Incidence angle on four polarizers (19) is 56.7 °.
Further, incidence angle of the p- polarized pulses laser on the 4th polarizer (19) is 56.7 °.
Further, the stimulated radiation light source includes Nd: YAG crystal bar (5), semiconductor laser side pump module (6),
In:
Nd: the YAG crystal bar (5) is laser gain medium, in the semiconductor for absorbing semiconductor laser side pump module (6)
After laser energy, while generating the unpolarized stimulated radiation fluorescence of tri- kinds of wavelength of 946nm, 1064nm and 1319nm.
Compared with prior art, the laser of the disclosure has following advantages:
1) p- polarized pulses laser resonator and s- polarization continuous laser resonant cavity are formed into a complex wrapping type resonance
Chamber, and be divided using the first polarizer, the p- polarized pulses laser and s- polarization continuous laser for realizing co-wavelength are simultaneously
Oscillation output.
2) it can be generated simultaneously using Nd: YAG crystal bar and semiconductor laser side pump module as stimulated radiation light source
The unpolarized stimulated radiation fluorescence of tri- kinds of wavelength of 946nm, 1064nm and 1319nm, and using motorized precision translation stage adjustment reflecting mirror and
Outgoing mirror may be constructed multiple groups resonant cavity, realizes the p- polarized pulses laser of three kinds of wavelength and connects with the s- polarization of its co-wavelength
Continuous laser exports simultaneously.
3) successively with the reflection of 56.7 ° of second polarizers of Brewster's angle, third polarizer and the 4th polarizer
S- polarizes that continuous laser transmit with by the 4th polarizer with 56.7 ° of Brewster's angles and the identical p- polarized pulses of wavelength are sharp
Realize that superposing type closes beam, so that laser structure is compact, and can generate with single beam shape on their same propagation directions of light
The continuous and superimposed pulses laser beam of formula, thus solve two co-wavelengths laser complete superposing type close beam caused by
The problem of this is high, bulky, operation is complicated, optical maser wavelength fixed single, has very strong practicability.
Detailed description of the invention
Fig. 1 is in an embodiment of the present disclosure about continuous and superimposed pulses formula single beam solid state laser structural representation
Figure；
Wherein: 1, the first plano-concave reflecting mirror；2, the second plano-concave reflecting mirror；3, third plano-concave reflecting mirror；4, first is electronic flat
Moving stage；5, Nd: YAG crystal bar；6, semiconductor laser side pump module；7, the first polarizer；8, the first outgoing mirror；9, second is defeated
Appearance；10, third outgoing mirror；11, the second motorized precision translation stage；12, Q switched element (Q-switch)；13, the 4th outgoing mirror；14, the 5th
Outgoing mirror；15, the 6th outgoing mirror；16, third motorized precision translation stage；17, the second polarizer；18, third polarizer；19,
Four polarizers.
Specific embodiment
Continuous and superimposed pulses formula single beam solid state laser is illustrated below with reference to Fig. 1.
Laser, by transformation reflecting mirror and outgoing mirror, can form under the premise of using same stimulated radiation light source
Multiple groups resonant cavity.Every group of resonant cavity includes the first resonant cavity and the second resonant cavity.First resonant cavity by first kind plano-concave reflecting mirror,
First polarizer (7), first kind flat output mirror are constituted, and polarize continuous laser for vibrating amplification s；Second resonant cavity is by
A kind of plano-concave reflecting mirror, the second class flat output mirror are constituted, for vibrating amplification p- polarized pulses laser.It is anti-in first kind plano-concave
Penetrating between mirror (1) and the first polarizer (7) has stimulated radiation light source, unpolarized for generating unpolarized stimulated radiation fluorescence
Stimulated radiation fluorescence is decomposed into s- polarization excited fluorescence through the first polarizer (7) and p- polarizes stimulated radiation fluorescence, in which: s-
It polarizes stimulated radiation fluorescence output s- after the amplification of the first internal oscillation and polarizes continuous laser, p- polarizes stimulated radiation fluorescence warp
Q switched element (12) modulation in second resonant cavity, exports p- polarized pulses laser after oscillation amplification in the second resonant cavity.It is described
S- polarization continuous laser overlaps on same propagation direction with p- polarized pulses laser.
Q switched element (12) is acousto-optic crsytal.The acousto-optic crsytal can use optically uniaxial acousto-optic crsytal, mainly there is dioxy
Change the crystal such as tellurium, lead molybdate, calogreen.When extraneous ultrasonic wave passes through acousto-optic crsytal, internal density generating period
Variation, causes refractive index periodic to change, and makes to deflect by the p- polarization stimulated radiation fluorescence of acousto-optic crsytal, can not be humorous
Intracavitary oscillation of shaking is amplified, and it is even more impossible to form laser output；In the presence of not having ultrasonic wave, it is excited by the p- polarization of acousto-optic crsytal
Radiofluorescence can vibrate in resonant cavity amplifies and is formed laser output；When ultrasonic wave is periodically by acousto-optic crsytal,
The output of p- polarized pulses laser will be generated.
In said elements, stimulated radiation light source, first kind plano-concave reflecting mirror, the first polarizer (7), the second class plane are defeated
Appearance optical center is on the same line.
The characteristic type of first kind plano-concave reflecting mirror, first kind flat output mirror and the second class flat output mirror is according to effect
Different wave length selection.
In Fig. 1, first kind plano-concave reflecting mirror is flat including the first plano-concave reflecting mirror (1), the second plano-concave reflecting mirror (2), third
Recessed reflecting mirror (3), is respectively acting on the laser of 946nm, 1064nm, 1319nm wavelength, their radius of curvature is 1000nm, and
Have the characteristics that following:
The plane of first plano-concave reflecting mirror (1) is coated with the double-colored anti-reflection film of 0 ° of incidence 1064nm, 1319nm wavelength, concave surface
It is coated with the high-reflecting film of 0 ° of incidence 946nm wavelength and the double-colored anti-reflection film of 1064nm, 1319nm wavelength；
Plated film, concave surface are not coated with the high-reflecting film of 0 ° of incident 1064nm wavelength to the plane of second plano-concave reflecting mirror (2)；
The plane of third plano-concave reflecting mirror (3) is coated with the anti-reflection film of 0 ° of incidence 1064nm wavelength, and concave surface is coated with 0 ° of incidence
The high-reflecting film of 1319nm wavelength and the anti-reflection film of 1064nm wavelength.
Correspondingly, plane of the first outgoing mirror (8) close to the first polarizer (7) is coated with the portion of 0 ° of incidence 946nm wavelength
The double-colored anti-reflection film of point reflectance coating and 1064nm, 1319nm wavelength, another plane be coated with 0 ° of incidence 946nm, 1064nm,
Three color anti-reflection films of 1319nm wavelength；Plane of 4th outgoing mirror (13) close to the first polarizer (7) is coated with 0 ° of incidence 946nm
The double-colored anti-reflection film of part reflectance coating and 1064nm, 1319nm wavelength, another plane be coated with 0 ° of incidence 946nm, 1064nm,
Three color anti-reflection films of 1319nm wavelength；
Plane of second outgoing mirror (9) close to the first polarizer (7) is coated with the part reflection of 0 ° of incidence 1064nm wavelength
Film, another plane are coated with the anti-reflection film of 0 ° of incidence 1064nm wavelength；5th outgoing mirror (14) is close to the first polarizer (7)
Plane is coated with the 0 ° of incidence part 1064nm reflectance coating, and another plane is coated with the anti-reflection film of 0 ° of incident 1064nm wavelength；
Plane of the third outgoing mirror (10) close to the first polarizer (7) is coated with the part reflection of 0 ° of incidence 1319nm wavelength
The anti-reflection film of film and 1064nm wavelength, another plane are coated with the double-colored anti-reflection film of 0 ° of incidence 1064nm, 1319nm wavelength；6th
Plane of the outgoing mirror (15) close to the first polarizer (7) is coated with the increasing of 0 ° of the incidence part 1319nm reflectance coating and 1064nm wavelength
Permeable membrane, another plane are coated with the double-colored anti-reflection film of 0 ° of incidence 1064nm, 1319nm wavelength.
In this way, the first plano-concave reflecting mirror (1), the first polarizer (7), the first outgoing mirror (8) the first resonance of formation
Chamber polarizes 946nm continuous laser for vibrating amplification output s-；First plano-concave reflecting mirror (1), the 4th outgoing mirror (13) form the
Two resonant cavities polarize 946nm pulse laser for output p- after vibrating amplification；Second plano-concave reflecting mirror (2), the first polarizer
(7), the second outgoing mirror (9) forms third resonant cavity, polarizes 1064nm continuous laser for vibrating amplification output s-；Second plano-concave
Reflecting mirror (2), the 5th outgoing mirror (14) form the 4th resonant cavity, swash for output p- polarization 1064nm pulse after vibrating amplification
Light；Third plano-concave reflecting mirror (3), the first polarizer (7), third outgoing mirror (10) form the 5th resonant cavity for vibrating amplification
It exports s- and polarizes 1319nm continuous laser；Third plano-concave reflecting mirror (3), the 6th outgoing mirror (15) form the 6th resonant cavity, are used for
Output p- polarizes 1319nm pulse laser after oscillation amplification.
By the first plano-concave reflecting mirror (1), the second plano-concave reflecting mirror (2), that third plano-concave reflecting mirror (3) is placed on first is electronic
On translation stage (4), it can according to need mobile first motorized precision translation stage (4) and select suitable reflecting mirror.It similarly, can also be by
One outgoing mirror (8), the second outgoing mirror (9), third outgoing mirror (10) are placed on the second motorized precision translation stage (11), by the 4th output
Mirror (13), the 5th outgoing mirror (14), the 6th outgoing mirror (15) are placed on third motorized precision translation stage (16).Motorized precision translation stage can be with
Facilitate according to the needs of different wave length switched mirror or outgoing mirror in the vertical line of corresponding optical path.
The stimulated radiation light source includes Nd: YAG crystal bar (5), semiconductor laser side pump module (2), in which: the Nd
: YAG crystal bar (5) is that laser gain medium can after the semiconductor laser energy for absorbing semiconductor laser side pump module (2)
946nm, 1064nm and 1319nm tri- unpolarized stimulated radiation fluorescence is generated as needed.Semiconductor laser side pump module can
With preferred 808nm semiconductor laser side pump module.
When the stimulated radiation fluorescence for the respective wavelength that stimulated radiation light source generates is passed through through the first polarizer (7), by the
One polarizer (7) is decomposed into s- polarization stimulated radiation fluorescence and p- polarization stimulated radiation fluorescence.It is glimmering in s- polarization stimulated radiation
Light amplifies to form s- polarization continuous laser through the first internal oscillation, and p- polarization stimulated radiation fluorescence is put through the second internal oscillation
It is big to form p- polarized pulses laser.Increase polarization member in the optical path that s- polarizes continuous laser and p- polarized pulses laser propagation
Part, thus it is possible to vary s- polarizes the direction of propagation of continuous laser and/or p- polarized pulses laser, so that s- polarization continuous laser and p-
The direction of propagation of polarized pulses laser is identical, overlaps them on same propagation direction.
In Fig. 1, the second polarizer is set in the optical path that s- polarizes continuous laser and p- polarized pulses laser propagation
(17), third polarizer (18), the 4th polarizer (19), by the second polarizer (17), third polarizer (18),
4th polarizer (19) changes the direction of propagation of s- polarization continuous laser, makes the biography of its direction of propagation Yu p- polarized pulses laser
Broadcast that direction is identical, and the p- polarized pulses laser for crossing the 4th polarizer (19) with full impregnated is overlaped.
Further, Brewster principle, the second polarizer (17), third polarizer (18), the 4th polarization are based on
The angle of element (19) and incident light is 56.7 ° of angles.
Using the optical path between the first polarizer (7) and the second class flat output mirror as first straight line optical path, by first
Optical path between polarizer (7) and first kind flat output mirror as second straight line optical path, the direction of second straight line optical path with
The direction of first straight line optical path is at 66.6 ° of angles.Optical path where second polarizer (17), third polarizer (18) is made
For third linear light path, the direction of third linear light path and the direction of second straight line optical path are at 66.6 ° of angles.Third is polarized into member
For optical path where part (18), the 4th polarizer (19) as the 4th linear light path, the direction of the 4th linear light path and third are straight
The direction on linear light road is at 66.6 ° of angles.In Fig. 1, first straight line optical path is propagated to the right in the horizontal direction, and second straight line optical path is along right
Top propagate, third linear light path first level optical path top and propagate to the right in the horizontal direction, the 4th linear light path exists
It is simultaneously propagated along lower right on the right of second straight line optical path.Also, the intersection point of second straight line optical path and first straight line optical path is first
On polarizer (7) left side plane, the right side of the intersection point of third linear light path and second straight line optical path in the second polarizer (17)
On side plane, the intersection point of the 4th linear light path and third linear light path is on the left side plane of third polarizer (18), and the 4th
On the right side plan of linear light path and the 4th polarizer (19) of intersection point of first straight line optical path.
For above-mentioned linear light path in same level, this is a kind of preferred embodiment, and laser structure can be made compact, side
Just adjustment constitutes each element of laser.But each element also can according to need deployment, there are linear light paths not same
The possibility of horizontal plane.
It in one embodiment, is 4mm, stick long 75mm, Nd in Nd: YAG crystal bar diameter3+Ion doping concentration is
0.9at.%, the 808nm semiconductor laser total pump power in semiconductor laser side pump module are 600W, the first outgoing mirror (8)
Transmissivity to s- polarization 946nm continuous laser fractional transmission is T=5.6%, and the second outgoing mirror (9) connects s- polarization 1064nm
The transmissivity of continuous laser part transmission is T=20%, and third outgoing mirror (10) polarizes 1319nm continuous laser fractional transmission to s-
Transmissivity be T=8.8%, the 4th outgoing mirror (13) to p- polarization 946nm pulse laser fractional transmission transmissivity be T=
10.5%, the 5th outgoing mirror (14) is T=33.2% to the transmissivity of p- polarization 1064nm pulse laser fractional transmission, and the 6th is defeated
Under the experiment condition that appearance (15) is T=15.0% to the transmissivity of p- polarization 1319nm pulse laser fractional transmission, to continuous
It is the continuous and superimposed pulses of 946nm, 1064nm, 1319nm with superimposed pulses formula single beam solid state laser difference generation wavelength
The maximum superposition output power of single beam laser is measured, while also measuring s- polarization continuous laser by the second polarizer
(17) the maximum continuous power output, p- polarized pulses laser before reflecting are by the maximum before the transmission of the 4th polarizer (19)
The pulse recurrence frequency of mean power and p- polarized pulses laser, correlation measure is referring to table 1.
Table 1
As it can be seen from table 1 will from same laser emission light source simultaneously generate, the s of phase co-wavelength polarization continuous laser with
P- polarized pulses laser can obtain that high power is continuous and superimposed pulses formula single beam laser in such a way that beam is closed in superposition.Not
Under the premise of replacing laser emission light source, by replacing corresponding reflecting mirror and outgoing mirror, the Gao Gong of three kinds of wavelength can be obtained
Rate is continuous and superimposed pulses formula single beam laser, and closes beam efficiency and reached 99% or so.
A kind of continuous and superimposed pulses formula single beam solid state laser that the disclosure proposes as a result, with current conventional base
The laser that the laser that Yu Yitai is continuously exported is exported with a pulse closes beam by space and obtains the continuous of single beam form
Comparing with superimposed pulses laser, there are three types of the design features of composite resonant cavity for tool, and it is cheap, compact-sized, reliable for operation, it is special
It is not that the high power that can obtain tri- kinds of wavelength of 946nm, 1064nm, 1319nm respectively using same laser stimulated radiation light source is continuous
With superimposed pulses formula single beam laser, the energy conversion efficiency of laser stimulated radiation light source is improved, therefore there is very strong reality
The property used.
The disclosure is described in detail above, principle and embodiment party of the specific case to the disclosure are applied in text
Formula is expounded, disclosed method that the above embodiments are only used to help understand and its core concept；Meanwhile it is right
In those skilled in the art, according to considering for the disclosure, there will be changes in the specific implementation manner and application range.It is comprehensive
Upper described, the content of the present specification should not be construed as the limitation to the disclosure.
Claims (9)
1. continuous and superimposed pulses formula single beam solid state laser, which is characterized in that the laser includes:
First kind plano-concave reflecting mirror, the first polarizer (7), first kind flat output mirror, the second class flat output mirror, in which:
The first kind plano-concave reflecting mirror, the first polarizer (7), first kind flat output mirror form the first resonant cavity；
The first kind plano-concave reflecting mirror, the second class flat output mirror form the second resonant cavity；
First polarizer (7) is located between first kind plano-concave reflecting mirror and the second class flat output mirror, the optical center of three
Point-blank；
There are Q switched element (12) between the first polarizer (7) and the second class flat output mirror, the optical center of three is in straight line
On；
There is stimulated radiation light source between the first kind plano-concave reflecting mirror (1) and the first polarizer (7), it is unpolarized for generating
Stimulated radiation fluorescence；
The unpolarized stimulated radiation fluorescence is decomposed into s- polarization excited fluorescence through the first polarizer (7) and p- polarization is excited spoke
Penetrate fluorescence；
S- polarization stimulated radiation fluorescence output s- after the amplification of the first internal oscillation polarizes continuous laser；
The p- polarization stimulated radiation fluorescence is modulated through Q switched element (12), and output p- is inclined after oscillation amplification in the second resonant cavity
Shake pulse laser；
The s- polarization continuous laser overlaps on same propagation direction with p- polarized pulses laser.
2. laser according to claim 1, which is characterized in that
The radius of curvature of the first kind plano-concave reflecting mirror is 1000nm, including the first plano-concave reflecting mirror (1), the second plano-concave reflect
Mirror (2), third plano-concave reflecting mirror (3), in which:
The plane of the first plano-concave reflecting mirror (1) is coated with the double-colored anti-reflection film of 0 ° of incidence 1064nm, 1319nm wavelength, concave surface
It is coated with the high-reflecting film of 0 ° of incidence 946nm wavelength and the double-colored anti-reflection film of 1064nm, 1319nm wavelength；
Plated film, concave surface are not coated with the high-reflecting film of 0 ° of incident 1064nm wavelength to the plane of the second plano-concave reflecting mirror (2)；
The plane of the third plano-concave reflecting mirror (3) is coated with the anti-reflection film of 0 ° of incidence 1064nm wavelength, and concave surface is coated with 0 ° of incidence
The high-reflecting film of 1319nm wavelength and the anti-reflection film of 1064nm wavelength.
3. laser according to claim 2, it is characterised in that:
The first kind flat output mirror includes the first outgoing mirror (8), the second outgoing mirror (9), third outgoing mirror (10), in which:
Plane of first outgoing mirror (8) close to the first polarizer (7) is coated with the part reflectance coating of 0 ° of incidence 946nm wavelength
With the double-colored anti-reflection film of 1064nm, 1319nm wavelength, another plane is coated with 0 ° of incidence 946nm, 1064nm, 1319nm wavelength
Three color anti-reflection films；
Plane of second outgoing mirror (9) close to the first polarizer (7) is coated with the part reflection of 0 ° of incidence 1064nm wavelength
Film, another plane are coated with the anti-reflection film of 0 ° of incidence 1064nm wavelength；
Plane of the third outgoing mirror (10) close to the first polarizer (7) is coated with the part reflection of 0 ° of incidence 1319nm wavelength
The anti-reflection film of film and 1064nm wavelength, another plane are coated with the double-colored anti-reflection film of 0 ° of incidence 1064nm, 1319nm wavelength.
4. laser according to claim 2, it is characterised in that:
The second class flat output mirror includes the 4th outgoing mirror (13), the 5th outgoing mirror (14), the 6th outgoing mirror (15),
In:
4th outgoing mirror (13) close to the first polarizer (7) plane be coated with the 0 ° of incidence part 946nm reflectance coating with
The double-colored anti-reflection film of 1064nm, 1319nm wavelength, another plane are coated with the three of 0 ° of incidence 946nm, 1064nm, 1319nm wavelength
Color anti-reflection film；
Plane of 5th outgoing mirror (14) close to the first polarizer (7) is coated with the 0 ° of incidence part 1064nm reflectance coating,
Another plane is coated with the anti-reflection film of 0 ° of incident 1064nm wavelength；
6th outgoing mirror (15) close to the first polarizer (7) plane be coated with the 0 ° of incidence part 1319nm reflectance coating with
The anti-reflection film of 1064nm wavelength, another plane are coated with the double-colored anti-reflection film of 0 ° of incidence 1064nm, 1319nm wavelength.
5. laser according to claim 1, it is characterised in that:
The first kind plano-concave reflecting mirror is located on the first motorized precision translation stage (4), and first kind flat output mirror is located in the second electricity
On dynamic translation stage (11), the second class flat output mirror is located on third motorized precision translation stage (16)；
The first kind plano-concave reflecting mirror, first kind flat output mirror, the second class flat output mirror position can pass through it
The motorized precision translation stage at place is adjusted along the same rectilinear direction perpendicular to respective optical path.
6. laser according to claim 1, it is characterised in that:
The Q switched element is acousto-optic crsytal (12).
7. laser according to claim 1, it is characterised in that:
The s- polarization continuous laser is successively inclined through the second polarizer (17), third after the output of first kind flat output mirror
It shakes element (18), the reflection of the 4th polarizer (19), exists with the p- polarized pulses laser through the 4th polarizer (19) total transmissivity
Same propagation overlaps on direction.
8. laser according to claim 7, it is characterised in that:
The s- polarization continuous laser is in second polarizer (17), third polarizer (18), the 4th polarizer
(19) incidence angle on is 56.7 °；
Incidence angle of the p- polarized pulses laser on the 4th polarizer (19) is 56.7 °.
9. laser according to claim 1, it is characterised in that:
The stimulated radiation light source includes Nd:YAG crystal bar (5), semiconductor laser side pump module (6), in which:
The Nd:YAG crystal bar (5) is laser gain medium, in the semiconductor laser for absorbing semiconductor laser side pump module (6)
After energy, while generating the unpolarized stimulated radiation fluorescence of tri- kinds of wavelength of 946nm, 1064nm, 1319nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611163811.9A CN106684683B (en) | 2016-12-15 | 2016-12-15 | Continuous and superimposed pulses formula single beam solid state laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611163811.9A CN106684683B (en) | 2016-12-15 | 2016-12-15 | Continuous and superimposed pulses formula single beam solid state laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106684683A CN106684683A (en) | 2017-05-17 |
| CN106684683B true CN106684683B (en) | 2018-12-21 |
Family
ID=58869439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611163811.9A Active CN106684683B (en) | 2016-12-15 | 2016-12-15 | Continuous and superimposed pulses formula single beam solid state laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106684683B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142405B (en) * | 2019-03-29 | 2021-06-18 | 西北大学 | Two-dimensional area array laser 3D metal printer and file conversion and printing control method thereof |
| CN111082301B (en) * | 2019-12-31 | 2022-01-14 | 哈尔滨工程大学 | LN cavity emptying type orthogonal polarization synchronous pulse laser generation method based on double 45-MgO |
| CN111313219A (en) * | 2020-03-05 | 2020-06-19 | 长春理工大学 | Double-mode pulse solid laser |
| CN111404009B (en) * | 2020-03-21 | 2021-09-10 | 哈尔滨工程大学 | Device and method for outputting orthogonal polarization laser based on double Brewster window multiports |
| CN113485063A (en) * | 2021-06-29 | 2021-10-08 | 歌尔股份有限公司 | Optical machine optical path system and control method thereof |
| CN113659422B (en) * | 2021-08-25 | 2023-10-20 | 华中科技大学 | Time sequence programmable composite laser pulse control system and control method |
| CN113791035B (en) * | 2021-11-15 | 2022-03-15 | 滨州学院 | Laser flaw detection device and laser flaw detection method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110222566A1 (en) * | 2010-03-15 | 2011-09-15 | Weida Miles J | Laser source that generates a rapidly changing output beam |
| CN102195230A (en) * | 2010-03-02 | 2011-09-21 | 中国科学院福建物质结构研究所 | Cross-polarization dual laser |
| CN102195229A (en) * | 2010-03-02 | 2011-09-21 | 中国科学院福建物质结构研究所 | Novel orthogonal-polarization dual-wavelength laser |
| CN103259166A (en) * | 2013-04-22 | 2013-08-21 | 西北大学 | Continuous dual-purpose fiber laser based on radio frequency modulation long period grating modulation Q pulse |
-
2016
- 2016-12-15 CN CN201611163811.9A patent/CN106684683B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195230A (en) * | 2010-03-02 | 2011-09-21 | 中国科学院福建物质结构研究所 | Cross-polarization dual laser |
| CN102195229A (en) * | 2010-03-02 | 2011-09-21 | 中国科学院福建物质结构研究所 | Novel orthogonal-polarization dual-wavelength laser |
| US20110222566A1 (en) * | 2010-03-15 | 2011-09-15 | Weida Miles J | Laser source that generates a rapidly changing output beam |
| CN103259166A (en) * | 2013-04-22 | 2013-08-21 | 西北大学 | Continuous dual-purpose fiber laser based on radio frequency modulation long period grating modulation Q pulse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106684683A (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106684683B (en) | Continuous and superimposed pulses formula single beam solid state laser | |
| US7664148B2 (en) | Passive Q switch laser device | |
| CN103636083A (en) | Pulse laser oscillator and method for controlling pulse laser oscillation | |
| US7558298B2 (en) | Laser device triggered by a photonic fiber | |
| JP2015510270A (en) | Optical amplifier system and pulse laser with reduced energy per pulse | |
| CN103545706B (en) | A kind of all solid state 355nm lasers | |
| CN109586153B (en) | Neodymium-doped lithium yttrium fluoride nanosecond pulse blue laser | |
| JP2015015337A (en) | Mode-locked laser | |
| CN110571639A (en) | nanosecond pulse narrow-linewidth optical parametric oscillator for seed light injection | |
| KR970005166B1 (en) | Equipment and method oscillating raman laser using stimulated raman scattering | |
| US6064684A (en) | Unidirectionally operating laser apparatus using semimonolithic ring cavity | |
| CN111653928A (en) | Double-synchronous pumping Raman laser amplification device and method | |
| JP2006171624A (en) | Terahertz wave generation system | |
| CN103414100A (en) | Orthogonal-polarization laser with adjustable polarization power ratio | |
| CN113904208B (en) | High-purity Laguerre Gaussian beam generation system and generation method thereof | |
| CN102801098B (en) | Pulsed laser and method for controlling same | |
| CN213753437U (en) | Double-crystal regenerative amplifier | |
| US4255718A (en) | Transversely pumped dye laser having improved conversion efficiency | |
| CN211351244U (en) | Nanosecond pulse narrow-linewidth optical parametric oscillator for seed light injection | |
| JP2001024264A (en) | Wavelength converting laser device | |
| CN217934552U (en) | Nanosecond-picosecond combined laser | |
| KR950002068B1 (en) | Second harmonic generating system and method | |
| CN219917893U (en) | Solid laser with bias selection function | |
| CN217087125U (en) | Narrow pulse width laser with high repetition frequency and high beam quality | |
| CN218070536U (en) | High-power nanosecond intracavity quintupling frequency laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |