CN107528197A - The compound unsteady cavity modeling pumping of two-chamber from optical parametric oscillation mid-infrared laser device - Google Patents
The compound unsteady cavity modeling pumping of two-chamber from optical parametric oscillation mid-infrared laser device Download PDFInfo
- Publication number
- CN107528197A CN107528197A CN201710831329.6A CN201710831329A CN107528197A CN 107528197 A CN107528197 A CN 107528197A CN 201710831329 A CN201710831329 A CN 201710831329A CN 107528197 A CN107528197 A CN 107528197A
- Authority
- CN
- China
- Prior art keywords
- light
- mgo
- fundamental frequency
- optical parametric
- pumping
- 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
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
- H01S3/06—Construction or shape of active medium
- H01S3/0602—Crystal lasers or glass lasers
-
- 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
- H01S3/06—Construction or shape of active medium
- H01S3/0619—Coatings, e.g. AR, HR, passivation layer
- H01S3/0621—Coatings on the end-faces, e.g. input/output surfaces of the laser light
- H01S3/0623—Antireflective [AR]
-
- 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
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
-
- 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
-
- 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
- H01S3/1083—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 using parametric generation
-
- 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
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/1601—Solid materials characterised by an active (lasing) ion
- H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
- H01S3/1611—Solid materials characterised by an active (lasing) ion rare earth neodymium
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The compound unsteady cavity modeling pumping of two-chamber from optical parametric oscillation mid-infrared laser device, be related to field of lasers, solve based on Nd:MgO:PPLN crystal from optical parameter mid-infrared laser device how to take into account high-power and high-lighting beam quality fundamental frequency light self- pomped and from optical parametric oscillation process focusing parameter match the problem of.The present invention includes two laser diode pumping sources, two energy-transmission optic fibres, four condenser lenses, two 45 degree of beam splitters, optical parametric osoillator total reflective mirror, optical parametric osoillator outgoing mirror, Nd:MgO:PPLN crystal, temperature controller and acousto-optic Q-switching.By using fundamental frequency optical cavity and parameter light generation chamber two-chamber composite construction, so that two chambers are kept completely separate work while integrated compactedness is taken into account, it ensure that two chamber cavity structure parameter designings are not interfere with each other, the optical pumping of large base module high light beam quality fundamental frequency, oscillation parameter light and fundamental frequency light focusing parameter matched, energy conversion efficiency height can be realized.
Description
Technical field
The present invention relates to field of laser device technology, and in particular to a kind of compound unsteady cavity modeling pumping of two-chamber from optical parameter
Vibrate mid-infrared laser device.
Background technology
Infrared band laser covers the mostly important transmission window of air in 3~5 μm, this wave band of laser environmental protection,
The fields such as medical treatment, national defence suffer from huge application prospect, are an important branch of laser technology research.Optical parametric oscillation
(OPO) as one of the important nonlinear frequency transformation technology for expanding laser output wavelength, in recent years, based on phosphorus germanium zinc (ZGP),
The optical parametric oscillator of the frequency conversion crystals such as periodically poled lithium niobate (PPLN) has turned into acquisition mid-infrared laser and most adopted extensively
A kind of technological means.But because these crystal only possess single frequency conversion function, it is also necessary to pass through rare earth ion doped increasing
Beneficial crystal provides fundamental frequency pump light.By comparison, rare earth ion is mixed additive mixing medium and is formed to have from optical parameter and shaken
The Multifunctional centralized shaping crystal swung is by more and more extensive concern, especially with the Nd of Nd (neodymium) ions binding oxidation mg-doped:
MgO:PPLN crystal is representative, has taken into account the integrated structural advantage of crystal function and quasi-phase matched frequency conversion advantage, red in being
The outer following very important developing direction of laser miniaturization.
For passing through Nd:MgO:For PPLN from for optical parametric oscillation exports mid-infrared laser, the fundamental frequency gain of light is infrared with
Laser frequency conversion shares Nd:MgO:The same crystal of PPLN, fundamental frequency light directly forms the pump to itself in intracavitary caused by crystal
Pu, this intracavity OPO pumping frameworks, when gain crystal pumping source high power pump, fundamental frequency light beam quality and optical parameter
It is to obtain high efficiency mid-infrared laser key point that how oscillatory process focusing parameter matching degree, which ensures,.At present on Nd:MgO:
PPLN is relatively low from the report pump power of optical parametric oscillation, and problem encountered is not directed under high pump power, therefore institute
The cavity structure of use is to improving fundamental frequency light beam quality and ensureing focusing parameter matching not targetedly design, referring to document
“L.Barraco et al.,Self-optical parametric oscillation in periodically poled
Neodymium-doped lithium niobate, Opt.Lett.2002,27,1540 ", it is clear that this cavity structure can not be protected
Hinder and operated under high power pump from the high efficiency of optical parametric oscillation.It is and infrared in the similar traditional inner chamber of system is operated therewith
In PPLN-OPO reports, the serious fuel factor brought for reply high power pump causes fundamental frequency light beam quality to deteriorate, and generally adopts
With low Excited state pump-coupling, reducing fuel factor influences, and improves vibration fundamental frequency facular model, while insertion is poly- in resonator
Focus lens, with reference to Compound Cavity structure design, both ensured that fundamental frequency light focal beam spot met matching relationship with place's parameteric light hot spot with a tight waist,
" the calm effect " to longer fundamental frequency optical cavity is played again, referring to document " Q.Sheng et al., Continuous-wave
mid-infrared intra-cavity single resonant PPLN-OPO under 880nm in-band
pumping,Opt.Express 2012,20,8041”.It is to be noted that typically directly pumping wavelength is not in gain
Absorption of crystal main peak, relative to complete pump power, fundamental frequency light conversion efficiency is relatively low, in addition for intracavitary insertion lens control light
The method of spot matching, in addition to causing loss increase, complete machine integrated level and reducing, due to gain crystal and frequency-changer crystal in PPLN-OPO
It is each independent, it is clear that this method and inapplicable Nd:MgO:This monocrystal of PPLN is from optical parametric oscillation structure.
The content of the invention
In order to solve to be based on Nd:MgO:How PPLN crystal takes into account high-power and high-lighting beam from optical parameter mid-infrared laser device
Quality fundamental frequency light self- pomped and from optical parametric oscillation process focusing parameter match the problem of, it is compound non-that the present invention provides a kind of two-chamber
Steady chamber modeling pumping from optical parametric oscillation mid-infrared laser device.
The present invention is that technical scheme is as follows used by solving technical problem：
The present invention the compound unsteady cavity modeling pumping of two-chamber from optical parametric oscillation mid-infrared laser device, including：Temperature controller；
The Nd being fitted on temperature controller:MgO:PPLN crystal, Nd is controlled by temperature controller:MgO:The temperature of PPLN crystal；
In Nd:MgO:Be sequentially provided with the light pass surface reflection direction of PPLN crystal left ends tertiary focusing lens, the one 45 degree
Beam splitter, the first condenser lens, the first energy-transmission optic fibre, first laser diode pumping source, first condenser lens and the 3rd
Condenser lens forms first laser diode pumping source coupled system；
In Nd:MgO:Be sequentially provided with the light pass surface reflection direction of PPLN crystal right-hand members the 4th condenser lens, the 2nd 45 degree
Beam splitter, the second condenser lens, the second energy-transmission optic fibre, second laser diode pumping source, second condenser lens and the 4th
Condenser lens forms second laser diode pumping source coupled system；
The acousto-optic Q-switching being located between the one 45 degree of beam splitter and the 2nd 45 degree of beam splitter, for realizing the arteries and veins of fundamental frequency light
Punching operating；
One 45 degree of beam splitter, tertiary focusing lens, the Nd:MgO:PPLN crystal, the 4th condenser lens, the 2nd 45 degree
Beam splitter, acousto-optic Q-switching form fundamental frequency optical cavity, the tertiary focusing lens and the 4th focus lens group into biconvex unsteady cavity
Modeling structure；
The confocal type optical parametric osoillator being made up of optical parametric osoillator total reflective mirror, optical parametric osoillator outgoing mirror, the Nd:MgO:
PPLN crystal is located at confocal type optical parametric osoillator place with a tight waist；
Launch Nd by two pumping sources:MgO:The pump light of PPLN absorption of crystal peak wavelengths, pump light pass through respectively
Energy-transmission optic fibre and laser diode pumping source coupled system focus on Nd corresponding to two pumping sources:MgO:Formed in PPLN crystal
Both-end high power pump；The Nd:MgO:PPLN absorption of crystal pump light forms population inversion, in holding for fundamental frequency optical cavity
Fundamental frequency light generation is formed under continuous feedback effect, the fundamental frequency light of vibration obtains large base module high light beam quality fortune through biconvex unsteady cavity modeling
Turn, large base module high light beam quality fundamental frequency light is simultaneously to Nd:MgO:PPLN Crystallization pumpings, keep what is formed in the process
Oscillation parameter light hot spot is with a tight waist to be overlapped with fundamental frequency light fundamental mode spot beam waist position, ensures oscillation parameter light spot size and fundamental frequency light
Fundamental mode spot size meets that focusing parameter matches；Formed after fundamental frequency optical pump power is higher than optical parametric osoillator starting of oscillation threshold value synchronous
The flashlight of vibration is operated, middle infrared band ideler frequency light exports through optical parametric osoillator outgoing mirror caused by correspondence.
Further, equal 400 μm of the core diameter of first energy-transmission optic fibre and the second energy-transmission optic fibre, numerical aperture equal 0.22.
Further, first condenser lens uses biconvex mirror or planoconvex lens of the focal length for 40mm, two-sided to be coated with
813nm pump light anti-reflection films；Second condenser lens uses biconvex mirror or planoconvex lens of the focal length for 40mm, two-sided to be coated with
813nm pump light anti-reflection films.
Further, the one 45 degree of beam splitter uses flat-flat mirror, two-sided to be coated with 813nm pump light anti-reflection films, leans on
Nearly Nd:MgO:PPLN crystal side one side is coated with 45 ° of high-reflecting films of 1084nm fundamental frequency lights；The 2nd 45 degree of beam splitter using it is flat-
Flat mirror, it is two-sided to be coated with pump light anti-reflection film, close to Nd:MgO:PPLN crystal side one side is coated with 45 ° of high-reflecting films of fundamental frequency light.
Further, the light pass surface of the acousto-optic Q-switching is coated with 1084nm fundamental frequency light anti-reflection films, and driving ultrasonic frequency is
40.68MHz, radio-frequency power 20W.
Further, the tertiary focusing lens use biconvex mirror or planoconvex lens of the focal length for 80mm, two-sided to be coated with
813nm pump lights anti-reflection film and 1084nm fundamental frequency light anti-reflection films；4th condenser lens uses biconvex mirror of the focal length for 80mm
Or planoconvex lens, it is two-sided to be coated with 813nm pump lights anti-reflection film and 1084nm fundamental frequency light anti-reflection films.
Further, the optical parametric osoillator total reflective mirror and optical parametric osoillator outgoing mirror use radius of curvature as 200mm
Plano-concave mirror, it is high anti-to be coated with 1400nm~1700nm flashlight wave band high-reflecting films and 3300nm~4200nm ideler frequencies optical band
Film.
Further, the Nd:MgO:PPLN crystal is cut using a axles, and its fundamental frequency light output wavelength is 1084nm, size
For：Thickness × width x length=2mm × 2mm × 30mm, MgO doping concentrations are 5%, Nd3+Ion doping concentration is 0.2%, polarization week
Phase length is 29.5 μm, and temperature control is at 25 DEG C.
Further, the Nd:MgO:The light pass surface at PPLN crystal both ends does 45 ° of sections, and the light pass surface at both ends is plated
Have 45 ° of high-reflecting films of 813nm pump lights, 45 ° of high-reflecting films of 1084nm fundamental frequency lights, 1400nm~1700nm flashlight wave bands high transmittance film,
3300nm~4200nm ideler frequency optical band high transmittance films.
Further, the focusing parameter ξ=L/b, L Nd:MgO:PPLN crystal lengths, the π n ω of confocal parameter b=22/
λ, n are corresponding laser refraction rate, and ω is corresponding laser beam waist radius, and λ is corresponding optical maser wavelength.
The beneficial effects of the invention are as follows：The present invention breaches tradition from optical parametric oscillation mid-infrared laser device in high power pumps
Technology limitation in terms of Pu, solves and is currently based on Nd:MgO:How PPLN crystal is realized from optical parameter mid-infrared laser device
Preferable fundamental frequency light beam quality and how effective from optical parametric oscillation process focusing parameter matching degree is obtained under high power pump
Control the two difficulties.
The present invention is based on Nd:MgO:What PPLN crystal possessed integrates advantage from optical parametric oscillation function, by using fundamental frequency
Optical cavity and parameter light generation chamber two-chamber composite construction, while integrated compactedness is taken into account so that two chambers are kept completely separate
Work, ensure that two chamber cavity structure parameter designings are not interfere with each other, does not increase the basis of additional optical elements in two chambers
On, a part of condenser lens in pumping source coupled system is cleverly introduced into fundamental frequency optical cavity and forms biconvex unsteady cavity, and root
According to the chamber length and hysteroscope curvature of two-chamber overlapping region fundamental frequency light hot spot parameter optimization parameter light generation chamber with a tight waist, can finally realize
The optical pumping of large base module high light beam quality fundamental frequency, oscillation parameter light and fundamental frequency light focusing parameter matched, reach lifting from beche-de-mer without spike
The purpose of amount vibration mid-infrared laser device delivery efficiency.This compound unsteady cavity modeling pumping of two-chamber it is red from optical parametric oscillation
Outer laser is applied to pumping source high power pump, has the high protrusion of Highgrade integration, good beam quality, energy conversion efficiency
Feature.
Brief description of the drawings
Fig. 1 is a kind of compound unsteady cavity modeling pumping of two-chamber provided by the invention from optical parametric oscillation mid-infrared laser device
Structural representation.
In figure：1st, first laser diode pumping source；2nd, second laser diode pumping source；3rd, the first energy-transmission optic fibre；4、
Second energy-transmission optic fibre；5th, the first condenser lens；6th, the second condenser lens；7th, the one 45 degree of beam splitter；8th, the 2nd 45 degree of beam splitter；
9th, tertiary focusing lens；10th, the 4th condenser lens；11st, optical parametric osoillator total reflective mirror；12nd, optical parametric osoillator outgoing mirror；13、Nd:
MgO:PPLN crystal；14th, temperature controller；15th, acousto-optic Q-switching.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
As shown in figure 1, a kind of compound unsteady cavity modeling pumping of two-chamber of the present invention from optical parametric oscillation mid-infrared laser
Device, mainly include：First laser diode pumping source 1, second laser diode pumping source 2, the first energy-transmission optic fibre 3, second pass
Can optical fiber 4, the first condenser lens 5, the second condenser lens 6, the 1st degree of beam splitters 7, the 2nd 45 degree of beam splitters 8, tertiary focusings
Lens 9, the 4th condenser lens 10, optical parametric osoillator total reflective mirror 11, optical parametric osoillator outgoing mirror 12, Nd:MgO:PPLN crystal 13,
Temperature controller 14 and acousto-optic Q-switching 15.
Nd:MgO:PPLN crystal 13 is fitted tightly on temperature controller 14, and Nd is controlled by temperature controller 14:MgO:PPLN crystal
13 temperature.In Nd:MgO:Optical parametric osoillator total reflective mirror 11 and parametric oscillation are disposed with the horizontal optical path of PPLN crystal 13
Chamber outgoing mirror 12, i.e. optical parametric osoillator total reflective mirror 11 are arranged on Nd:MgO:The horizontal optical path left end of PPLN crystal 13, optical parametric osoillator
Outgoing mirror 12 is arranged on Nd:MgO:The horizontal optical path right-hand member of PPLN crystal 13.
Nd:MgO:The both ends light pass surface reflection direction of PPLN crystal 13 be on the optical path direction vertical with horizontal optical path direction according to
Secondary first laser diode pumping source 1, second laser diode pumping source 2, the first energy-transmission optic fibre 3, second of being provided with passes energy light
Fine 4, first condenser lens 5, the second condenser lens 6, the 1st degree of beam splitters 7, the 2nd 45 degree of beam splitters 8, tertiary focusing lens
9th, the 4th condenser lens 10, acousto-optic Q-switching 15.Particularly：In Nd:MgO:The light pass surface reflection direction of the left end of PPLN crystal 13
(with Nd:MgO:The vertical optical path direction in the horizontal optical path direction of PPLN crystal 13 is Nd:MgO:The light pass surface of PPLN crystal 13 reflects
Direction) on be disposed with：9, the 1st degree of beam splitters 7 of tertiary focusing lens, the first condenser lens 5, the first energy-transmission optic fibre 3,
First laser diode pumping source 1；In Nd:MgO:It is disposed with the light pass surface reflection direction of the right-hand member of PPLN crystal 13：The
Four 10, the 2nd 45 degree of condenser lens beam splitter 8, the second condenser lens 6, the second energy-transmission optic fibre 4, second laser diode pumping sources
2.Acousto-optic Q-switching 15 is arranged between the one 45 degree of beam splitter 7 and the 2nd 45 degree of beam splitter 8.One 45 degree of beam splitter 7 is arranged on
Between first condenser lens 5 and tertiary focusing lens 9, the 2nd 45 degree of beam splitter 8 is arranged on the second condenser lens 6 and the 4th and focused on
Between lens 10.
Equal 400 μm of the core diameter of first energy-transmission optic fibre 3 and the second energy-transmission optic fibre 4, while numerical aperture equal 0.22.
First condenser lens 5 uses biconvex mirror or planoconvex lens of the focal length for 40mm, and two-sided to be coated with 813nm pump lights anti-reflection
Film.
Second condenser lens 6 uses biconvex mirror or planoconvex lens of the focal length for 40mm, and two-sided to be coated with 813nm pump lights anti-reflection
Film.
One 45 degree of beam splitter 7 is using flat-flat mirror, and two-sided to be coated with 813nm pump light anti-reflection films, one side is (close to Nd:
MgO:The side of PPLN crystal 13) it is coated with 45 ° of high-reflecting films of 1084nm fundamental frequency lights.
2nd 45 degree of beam splitter 8 is using flat-flat mirror, and two-sided to be coated with pump light anti-reflection film, one side is (close to Nd:MgO:
The side of PPLN crystal 13) it is coated with 45 ° of high-reflecting films of fundamental frequency light.
The light pass surface of acousto-optic Q-switching 15 is coated with 1084nm fundamental frequency light anti-reflection films, and driving ultrasonic frequency is 40.68MHz, is penetrated
Frequency power is 20W.
Tertiary focusing lens 9 use biconvex mirror or planoconvex lens of the focal length for 80mm, and two-sided to be coated with 813nm pump lights anti-reflection
Film and 1084nm fundamental frequency light anti-reflection films.
4th condenser lens 10 uses biconvex mirror or planoconvex lens of the focal length for 80mm, two-sided to be coated with the increasing of 813nm pump lights
Permeable membrane and 1084nm fundamental frequency light anti-reflection films.
Optical parametric osoillator total reflective mirror 11 uses radius of curvature to be coated with 1400nm~1700nm signals for 200mm plano-concave mirror
Optical band and 3300nm~4200nm ideler frequency optical band high-reflecting films.
Optical parametric osoillator outgoing mirror 12 uses radius of curvature to be coated with 1400nm~1700nm signals for 200mm plano-concave mirror
Optical band high-reflecting film and 3300nm~4200nm ideler frequency optical band high transmittance films.
Nd:MgO:PPLN crystal 13 is using the cutting of a axles, and its fundamental frequency light output wavelength is 1084nm, and crystalline size is：Thick ×
Width x length=2mm × 2mm × 30mm, MgO doping concentrations are set in 5%, Nd3+Ion doping concentration is set in 0.2%, polarization week
Phase length is set as 29.5 μm, Nd:MgO:The light pass surface at the both ends of PPLN crystal 13 does 45 ° of sections, and the light pass surface at both ends is plated
Have 45 ° of high-reflecting films of 813nm pump lights, 45 ° of high-reflecting films of 1084nm fundamental frequency lights, 1400nm~1700nm flashlight wave bands high transmittance film,
3300nm~4200nm ideler frequency optical band high transmittance films.Nd:MgO:PPLN crystal 13 is fitted tightly on temperature controller 14, and temperature is accurate
Control is at 25 DEG C.
The light pass surface of acousto-optic Q-switching 15 is coated with fundamental frequency light anti-reflection film, fundamental frequency light is realized that pulse is transported by acousto-optic Q-switching 15
Turn.
The present invention a kind of compound unsteady cavity modeling pumping of two-chamber from optical parametric oscillation mid-infrared laser device, it is described
First condenser lens 5 and tertiary focusing lens 9 form first laser diode pumping source coupled system, the He of the second condenser lens 6
4th condenser lens 10 forms second laser diode pumping source coupled system.
Described the one 45 degree of beam splitter 7, tertiary focusing lens 9, the 2nd 45 degree of beam splitters 8, the 4th condenser lens 10, sound
Light Q-switch 15, Nd:MgO:PPLN crystal 13 forms fundamental frequency optical cavity.
Described optical parametric osoillator total reflective mirror 11, Nd:MgO:The optical parametric osoillator outgoing mirror 12 of PPLN crystal 13, composition are confocal
Type optical parametric osoillator, Nd:MgO:PPLN crystal 13 is located at confocal type optical parametric osoillator place with a tight waist.
A kind of compound unsteady cavity modeling pumping of two-chamber of the present invention from optical parametric oscillation mid-infrared laser device, first laser
Diode pumping source 1 and second laser diode pumping source 2 launch Nd:MgO:PPLN crystal 13 absorbs the pumping of peak wavelength
Light, pump light are respectively focused on Nd by energy-transmission optic fibre and pumping source coupled system by left and right ends:MgO:In PPLN crystal 13,
Form both-end pumping pattern, Nd:MgO:The absorptive pumping light of PPLN crystal 13 forms population inversion, is held in fundamental frequency optical cavity
Fundamental frequency light generation, tertiary focusing lens 9, the 4th condenser lens 10 included in the fundamental frequency optical cavity are formed under continuous feedback effect
Biconvex unsteady cavity modeling structure is formed, the fundamental frequency light of vibration obtains the operating of large base module high light beam quality through biconvex unsteady cavity modeling；
Large base module high light beam quality fundamental frequency light is simultaneously to Nd:MgO:PPLN crystal 13 forms pumping, by optical parametric osoillator total reflective mirror 11
Curvature design, the length design of optical parametric osoillator chamber with optical parametric osoillator outgoing mirror 12, guarantee oscillation parameter light hot spot is girdled the waist and base
Frequency light fundamental mode spot beam waist position overlaps, and ensures that oscillation parameter light spot size is corresponding with fundamental frequency light fundamental mode spot size satisfaction
Focusing parameter ξ=L/b is matched, and wherein L is Nd:MgO:The length of PPLN crystal 13, the π n ω of confocal parameter b=22/ λ, wherein n are phase
Stress optical index, ω is corresponding laser beam waist radius, and λ is corresponding optical maser wavelength, when fundamental frequency optical pump power shakes higher than parameter
After swinging chamber starting of oscillation threshold value, the flashlight of run-in synchronism stable oscillation stationary vibration is formed, middle infrared band ideler frequency light is by ginseng caused by correspondence
Amount vibration chamber outgoing mirror 12 exports.
A kind of specific reality from optical parametric oscillation mid-infrared laser device of the compound unsteady cavity modeling pumping of two-chamber of the present invention
Existing process is as follows：
By the laser that the launch wavelength of first laser diode pumping source 1 is 813nm, realize and swash through the first energy-transmission optic fibre 3
Light output, then the first laser diode pumping source coupled system formed through the first condenser lens 5 and tertiary focusing lens 9 focus on
To Nd:MgO:In PPLN crystal 13；Simultaneously by the laser that the launch wavelength of second laser diode pumping source 2 is 813nm, through the
Two energy-transmission optic fibres 4 realize that laser exports, then the second laser diode formed through the second condenser lens 6 and the 4th condenser lens 10
Pumping source coupled system focuses on Nd:MgO:In PPLN crystal 13, a kind of both-end pumping pattern is now formed, while in Nd:
MgO:The both ends of PPLN crystal 13 form 1 respectively:(ratio of pump spot diameter and focal beam spot diameter is 1 to 2 hot spot ratios:2)
Focal pumping, a diameter of 800 μm of focal beam spot.
First laser diode pumping source 1, second laser diode pumping source 2, energy-transmission optic fibre and pumping source coupled system
To Nd:MgO:PPLN crystal 13 forms both-end high power pump, Nd:MgO:It is anti-that the absorptive pumping light of PPLN crystal 13 forms population
Turn, under the constant feedback effect for the fundamental frequency optical cavity being made up of the one 45 degree of beam splitter 7 and the 2nd 45 degree of beam splitter 8,
1084nm fundamental frequency light generation is formed in fundamental frequency optical cavity, the tertiary focusing lens the 9, the 4th included in the fundamental frequency optical cavity are poly-
Focus lens 10 form biconvex unsteady cavity modeling structure, and the 1084nm fundamental frequency lights of vibration obtain large base module height through biconvex unsteady cavity modeling
Beam quality operates, while is formed by acousto-optic Q-switching 15 to Nd:MgO:The narrow arteries and veins of 1084nm high light beam qualities of PPLN crystal 13
Rush pumping.
The confocal type optical parametric osoillator being made up of optical parametric osoillator total reflective mirror 11 and optical parametric osoillator outgoing mirror 12, chamber are a length of
200mm, Nd:MgO:PPLN crystal 13 is in this optical parametric osoillator place with a tight waist.Under 1084nm fundamental frequency light actions, work as parametric oscillation
Chamber starts infrared ideler frequency light in the synchronous 1516nm flashlights and 3800nm for producing vibration, optical parametric osoillator after reaching starting of oscillation threshold value
The 1516nm oscillation parameter light hot spots of middle vibration meet that focusing parameter matches with 1084nm fundamental frequency light fundamental mode spot sizes, 3800nm
In infrared ideler frequency light constantly amplify between optical parametric osoillator total reflective mirror 11 and optical parametric osoillator outgoing mirror 12, while pass through parameter
Vibration chamber outgoing mirror 12 exports.
By using fundamental frequency optical cavity and parameter light generation chamber two-chamber composite construction, do not increasing additional optical elements
On the basis of, a part of condenser lens in pumping source coupled system is introduced into fundamental frequency optical cavity and forms biconvex unsteady cavity modeling, root
According to the chamber length and hysteroscope curvature of two-chamber overlapping region fundamental frequency light hot spot parameter optimization parameter light generation chamber with a tight waist, so as to realize big base
The optical pumping of mould high light beam quality fundamental frequency, oscillation parameter light and fundamental frequency light focusing parameter matched, reach lifting and shaken from optical parameter
The delivery efficiency of mid-infrared laser device is swung, is solved based on Nd:MgO:PPLN crystal from optical parameter mid-infrared laser device how
Take into account high-power and high-lighting beam quality fundamental frequency light self- pomped and from optical parametric oscillation process focusing parameter match the problem of.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. the compound unsteady cavity modeling pumping of two-chamber from optical parametric oscillation mid-infrared laser device, it is characterised in that including：Temperature controller
(14)；
The Nd being fitted on temperature controller (14):MgO:PPLN crystal (13), Nd is controlled by temperature controller (14):MgO:PPLN crystal
(13) temperature；
In Nd:MgO:Tertiary focusing lens (9), the 1st are sequentially provided with the light pass surface reflection direction of PPLN crystal (13) left end
Degree beam splitter (7), the first condenser lens (5), the first energy-transmission optic fibre (3), first laser diode pumping source (1), described first
Condenser lens (5) and tertiary focusing lens (9) form first laser diode pumping source coupled system；
In Nd:MgO:The 4th condenser lens (10), second are sequentially provided with the light pass surface reflection direction of PPLN crystal (13) right-hand member
45 degree of beam splitters (8), the second condenser lens (6), the second energy-transmission optic fibre (4), second laser diode pumping source (2), described
Two condenser lenses (6) and the 4th condenser lens (10) form second laser diode pumping source coupled system；
The acousto-optic Q-switching (15) being located between the one 45 degree of beam splitter (7) and the 2nd 45 degree of beam splitter (8), for realizing fundamental frequency
The pulse operating of light；
The one 45 degree of beam splitter (7), tertiary focusing lens (9), Nd:MgO:PPLN crystal (13), the 4th condenser lens
(10), the 2nd 45 degree of beam splitter (8), acousto-optic Q-switching (15) form fundamental frequency optical cavity, the tertiary focusing lens (9) and the
Four condenser lenses (10) form biconvex unsteady cavity modeling structure；
The confocal type optical parametric osoillator being made up of optical parametric osoillator total reflective mirror (11), optical parametric osoillator outgoing mirror (12), the Nd:
MgO:PPLN crystal (13) is located at confocal type optical parametric osoillator place with a tight waist；
Launch Nd by two pumping sources:MgO:PPLN crystal (13) absorbs the pump light of peak wavelength, and pump light passes through respectively
Energy-transmission optic fibre and laser diode pumping source coupled system focus on Nd corresponding to two pumping sources:MgO:In PPLN crystal (13)
Form both-end high power pump；The Nd:MgO:PPLN crystal (13) absorptive pumping light forms population inversion, humorous in fundamental frequency light
Shake chamber constant feedback effect under form fundamental frequency light generation, the fundamental frequency light of vibration obtains large base module bloom through biconvex unsteady cavity modeling
Beam quality operates, and large base module high light beam quality fundamental frequency light is simultaneously to Nd:MgO:PPLN crystal (13) forms pumping, in the process
Keep formed oscillation parameter light hot spot to girdle the waist to overlap with fundamental frequency light fundamental mode spot beam waist position, ensure oscillation parameter light hot spot
Size meets that focusing parameter matches with fundamental frequency light fundamental mode spot size；When fundamental frequency optical pump power is higher than optical parametric osoillator starting of oscillation threshold
The flashlight of run-in synchronism vibration is formed after value, middle infrared band ideler frequency light is through optical parametric osoillator outgoing mirror (12) caused by correspondence
Output.
2. the compound unsteady cavity modeling pumping of two-chamber according to claim 1 from optical parametric oscillation mid-infrared laser device, its
It is characterised by, first energy-transmission optic fibre (3) and equal 400 μm of the core diameter of the second energy-transmission optic fibre (4), numerical aperture equal 0.22.
3. the compound unsteady cavity modeling pumping of two-chamber according to claim 1 from optical parametric oscillation mid-infrared laser device, its
It is characterised by, first condenser lens (5) uses biconvex mirror or planoconvex lens of the focal length for 40mm, two-sided to be coated with 813nm pumps
Pu light anti-reflection film；Second condenser lens (6) uses biconvex mirror or planoconvex lens of the focal length for 40mm, two-sided to be coated with 813nm
Pump light anti-reflection film.
4. the compound unsteady cavity modeling pumping of two-chamber according to claim 1 from optical parametric oscillation mid-infrared laser device, its
It is characterised by, the one 45 degree of beam splitter (7) is using flat-flat mirror, two-sided to be coated with 813nm pump light anti-reflection films, close Nd:
MgO:PPLN crystal (13) side one side is coated with 1084nm fundamental frequency lights 45°High-reflecting film；The 2nd 45 degree of beam splitter (8) uses
Flat-flat mirror, it is two-sided to be coated with pump light anti-reflection film, close to Nd:MgO:PPLN crystal (13) side one side is coated with fundamental frequency light 45°It is high
Anti- film.
5. the compound unsteady cavity modeling pumping of two-chamber according to claim 1 from optical parametric oscillation mid-infrared laser device, its
It is characterised by, the light pass surface of the acousto-optic Q-switching (15) is coated with 1084nm fundamental frequency light anti-reflection films, and driving ultrasonic frequency is
40.68MHz, radio-frequency power 20W.
6. the compound unsteady cavity modeling pumping of two-chamber according to claim 1 from optical parametric oscillation mid-infrared laser device, its
It is characterised by, the tertiary focusing lens (9) use biconvex mirror or planoconvex lens of the focal length for 80mm, two-sided to be coated with 813nm pumps
Pu light anti-reflection film and 1084nm fundamental frequency light anti-reflection films；4th condenser lens (10) uses focal length as 80mm biconvex mirror or flat
Convex lens, it is two-sided to be coated with 813nm pump lights anti-reflection film and 1084nm fundamental frequency light anti-reflection films.
7. the compound unsteady cavity modeling pumping of two-chamber according to claim 1 from optical parametric oscillation mid-infrared laser device, its
It is characterised by, the optical parametric osoillator total reflective mirror (11) and optical parametric osoillator outgoing mirror (12) use radius of curvature as 200mm
Plano-concave mirror, it is high anti-to be coated with 1400nm~1700nm flashlight wave band high-reflecting films and 3300nm~4200nm ideler frequencies optical band
Film.
8. the compound unsteady cavity modeling pumping of two-chamber according to claim 1 from optical parametric oscillation mid-infrared laser device, its
It is characterised by, the Nd:MgO:PPLN crystal (13) is cut using a axles, and its fundamental frequency light output wavelength is 1084nm, and size is：
Thickness × width x length=2mm × 2mm × 30mm, MgO doping concentrations are 5%, Nd3+Ion doping concentration is 0.2%, polarization cycle length
Spend for 29.5 μm, temperature control is at 25 DEG C.
9. the compound unsteady cavity modeling pumping of two-chamber according to claim 1 from optical parametric oscillation mid-infrared laser device, its
It is characterised by, the Nd:MgO:The light pass surface at PPLN crystal (13) both ends does 45°Section, the light pass surface at both ends are coated with
813nm pump lights 45°High-reflecting film, 1084nm fundamental frequency lights 45°High-reflecting film, 1400nm~1700nm flashlight wave bands high transmittance film,
3300nm~4200nm ideler frequency optical band high transmittance films.
10. the compound unsteady cavity modeling pumping of two-chamber according to claim 1 from optical parametric oscillation mid-infrared laser device, its
It is characterised by, the focusing parameter ξ=L/b, L Nd:MgO:PPLN crystal (13) length, the π n ω of confocal parameter b=22/ λ, n
For corresponding laser refraction rate, ω is corresponding laser beam waist radius, and λ is corresponding optical maser wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710831329.6A CN107528197B (en) | 2017-09-15 | 2017-09-15 | Two-chamber compound unsteady cavity modeling pumping from optical parametric oscillation mid-infrared laser device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710831329.6A CN107528197B (en) | 2017-09-15 | 2017-09-15 | Two-chamber compound unsteady cavity modeling pumping from optical parametric oscillation mid-infrared laser device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107528197A true CN107528197A (en) | 2017-12-29 |
| CN107528197B CN107528197B (en) | 2019-07-23 |
Family
ID=60736033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710831329.6A Active CN107528197B (en) | 2017-09-15 | 2017-09-15 | Two-chamber compound unsteady cavity modeling pumping from optical parametric oscillation mid-infrared laser device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107528197B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666862A (en) * | 2018-04-26 | 2018-10-16 | 长春理工大学 | A kind of infrared double-wave length is tunable from optical parametric oscillator |
| CN108899753A (en) * | 2018-08-21 | 2018-11-27 | 深圳市格镭激光科技有限公司 | A kind of end face uniform pumping solid state laser |
| CN112993729A (en) * | 2021-02-02 | 2021-06-18 | 长春理工大学 | Low-quantum-loss 1.6-micron high-peak-power pumping source of medium-wave optical parametric oscillator |
| CN112993727A (en) * | 2021-02-02 | 2021-06-18 | 长春理工大学 | Intermediate infrared differential dual-wavelength laser based on multi-period Nd-MgO-PPLN servo matching control |
| CN113314940A (en) * | 2021-05-27 | 2021-08-27 | 长春理工大学 | Multi-wavelength mid-infrared laser pulse train cavity emptying laser based on Nd, MgO and APLN crystals |
| CN114243434A (en) * | 2021-12-16 | 2022-03-25 | 长春理工大学 | Multi-wavelength mid-infrared parametric oscillator based on gain clipping regulation |
| CN114256721A (en) * | 2021-12-16 | 2022-03-29 | 长春理工大学 | Intermediate infrared self-frequency-conversion laser based on sandwich waveguide Nd-MgO-PPLN crystal |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100027571A1 (en) * | 2008-07-31 | 2010-02-04 | Murdoch Keith M | Stabilized near-infrared laser |
| CN103236633A (en) * | 2013-04-24 | 2013-08-07 | 哈尔滨工业大学 | 3-5-micron waveband intermediate infrared solid laser |
| US20140016657A1 (en) * | 2012-07-10 | 2014-01-16 | Coherent, Inc. | Multi-chip ops-laser |
| CN103840361A (en) * | 2014-01-23 | 2014-06-04 | 中国科学院上海光学精密机械研究所 | 1730 nm and 2763 nm output all solid-state optical parametric oscillator |
| CN104362501A (en) * | 2014-11-25 | 2015-02-18 | 中国工程物理研究院应用电子学研究所 | Narrow-linewidth and high-beam-quality intermediate infrared double-cavity optical parametric oscillator |
| CN105633789A (en) * | 2016-04-12 | 2016-06-01 | 哈尔滨工业大学 | CdSe optical parametric oscillator-based far infrared laser generator |
| CN106025777A (en) * | 2016-08-01 | 2016-10-12 | 苏州艾思兰光电有限公司 | Laser path system of semiconductor pumping laser cleaning machine |
| CN106911060A (en) * | 2017-03-30 | 2017-06-30 | 电子科技大学 | The high-efficiency high power middle infrared laser of Wavelength tunable |
-
2017
- 2017-09-15 CN CN201710831329.6A patent/CN107528197B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100027571A1 (en) * | 2008-07-31 | 2010-02-04 | Murdoch Keith M | Stabilized near-infrared laser |
| US20140016657A1 (en) * | 2012-07-10 | 2014-01-16 | Coherent, Inc. | Multi-chip ops-laser |
| CN103236633A (en) * | 2013-04-24 | 2013-08-07 | 哈尔滨工业大学 | 3-5-micron waveband intermediate infrared solid laser |
| CN103840361A (en) * | 2014-01-23 | 2014-06-04 | 中国科学院上海光学精密机械研究所 | 1730 nm and 2763 nm output all solid-state optical parametric oscillator |
| CN104362501A (en) * | 2014-11-25 | 2015-02-18 | 中国工程物理研究院应用电子学研究所 | Narrow-linewidth and high-beam-quality intermediate infrared double-cavity optical parametric oscillator |
| CN105633789A (en) * | 2016-04-12 | 2016-06-01 | 哈尔滨工业大学 | CdSe optical parametric oscillator-based far infrared laser generator |
| CN106025777A (en) * | 2016-08-01 | 2016-10-12 | 苏州艾思兰光电有限公司 | Laser path system of semiconductor pumping laser cleaning machine |
| CN106911060A (en) * | 2017-03-30 | 2017-06-30 | 电子科技大学 | The high-efficiency high power middle infrared laser of Wavelength tunable |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666862A (en) * | 2018-04-26 | 2018-10-16 | 长春理工大学 | A kind of infrared double-wave length is tunable from optical parametric oscillator |
| CN108666862B (en) * | 2018-04-26 | 2019-07-23 | 长春理工大学 | A kind of infrared double-wave length is tunable from optical parametric oscillator |
| CN108899753A (en) * | 2018-08-21 | 2018-11-27 | 深圳市格镭激光科技有限公司 | A kind of end face uniform pumping solid state laser |
| CN108899753B (en) * | 2018-08-21 | 2024-04-02 | 深圳市格镭激光科技有限公司 | End-face uniform pumping solid laser |
| CN112993729A (en) * | 2021-02-02 | 2021-06-18 | 长春理工大学 | Low-quantum-loss 1.6-micron high-peak-power pumping source of medium-wave optical parametric oscillator |
| CN112993727A (en) * | 2021-02-02 | 2021-06-18 | 长春理工大学 | Intermediate infrared differential dual-wavelength laser based on multi-period Nd-MgO-PPLN servo matching control |
| CN113314940A (en) * | 2021-05-27 | 2021-08-27 | 长春理工大学 | Multi-wavelength mid-infrared laser pulse train cavity emptying laser based on Nd, MgO and APLN crystals |
| WO2022246967A1 (en) * | 2021-05-27 | 2022-12-01 | 长春理工大学 | Multi-wavelength mid-infrared laser pulse serial cavity emptying laser based on nd:mgo:apln crystal |
| CN114243434A (en) * | 2021-12-16 | 2022-03-25 | 长春理工大学 | Multi-wavelength mid-infrared parametric oscillator based on gain clipping regulation |
| CN114256721A (en) * | 2021-12-16 | 2022-03-29 | 长春理工大学 | Intermediate infrared self-frequency-conversion laser based on sandwich waveguide Nd-MgO-PPLN crystal |
| CN114256721B (en) * | 2021-12-16 | 2022-12-02 | 长春理工大学 | Intermediate infrared self-frequency-conversion laser based on sandwich waveguide Nd-MgO-PPLN crystal |
| CN114243434B (en) * | 2021-12-16 | 2022-12-30 | 长春理工大学 | Multi-wavelength mid-infrared parametric oscillator based on gain clipping regulation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107528197B (en) | 2019-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107528197B (en) | Two-chamber compound unsteady cavity modeling pumping from optical parametric oscillation mid-infrared laser device | |
| CN105449510A (en) | All solid state mid-infrared optical parametric oscillator | |
| CN102709797B (en) | Intermediate infrared cascaded pulse optical fiber laser | |
| CN106229806A (en) | The tunable alaxadrite laser of Raman gold-tinted pumping | |
| CN102005694B (en) | Single-end pumped intra-cavity frequency doubled ultraviolet solid laser | |
| CN108666862B (en) | A kind of infrared double-wave length is tunable from optical parametric oscillator | |
| CN107046222A (en) | A kind of inner chamber optical parametric oscillator for realizing close twin wavelength laser output | |
| CN204290022U (en) | Infrared two-chamber optical parametric oscillator in a kind of narrow linewidth high light beam quality | |
| CN103944049B (en) | A kind of three hysteroscope annular chamber mid-infrared parameter oscillator of miniaturization | |
| CN106058632B (en) | A kind of adjustable passive Q-adjusted raman laser system of pulse energy based on bonded crystals | |
| CN102751653A (en) | Photonic crystal fiber based medium-infrared optical fiber parametric oscillator for degenerating four-wave mixing | |
| CN106816807A (en) | Optical fiber laser as pumping source intracavity pump optical parametric oscillator | |
| CN204290023U (en) | Infrared intra-cavity optical parametric oscillator during a kind of miniaturized wide spectral is tunable | |
| CN110048298A (en) | A kind of small-sized LONG WAVE INFRARED laser generator | |
| CN102969648A (en) | High-power intermediate infrared laser device based on intra-cavity frequency conversion | |
| CN104362501A (en) | Narrow-linewidth and high-beam-quality intermediate infrared double-cavity optical parametric oscillator | |
| CN107749557A (en) | The middle tunable IR Fiber-optic parameter oscillator of high-order mode signal injection | |
| CN202888602U (en) | Diode end-pumped all-solid-state ultraviolet laser device | |
| CN112186478A (en) | Laser with adjustable power proportion and pulse interval and method | |
| CN104184042A (en) | Combined 1.9 mu m wavelength converter of hollow-core photonic crystal fiber and seal cavity | |
| CN100452572C (en) | Medium infrared high-power laser light source basedon erbium-ytterbium co-doped double-clad fiber | |
| CN206878308U (en) | A kind of middle infrared solid laser | |
| CN203631964U (en) | 976nm Q-switching and mode-locked laser system | |
| CN104300355A (en) | Optical parametric oscillation laser device based on lanthanum gallium silicate crystal | |
| CN103779770A (en) | Blue-light LD pimping praseodymium-doped yttrium lithium fluoride 915 nm near-infrared total-solid laser device |
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 |