CN105514779A - High-power narrow-linewidth continuous wave visible light optical parametric oscillator - Google Patents
High-power narrow-linewidth continuous wave visible light optical parametric oscillator Download PDFInfo
- Publication number
- CN105514779A CN105514779A CN201610031149.5A CN201610031149A CN105514779A CN 105514779 A CN105514779 A CN 105514779A CN 201610031149 A CN201610031149 A CN 201610031149A CN 105514779 A CN105514779 A CN 105514779A
- Authority
- CN
- China
- Prior art keywords
- laser
- optical parametric
- parametric oscillator
- speculum
- resonant cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
- G02F1/3544—Particular phase matching techniques
-
- 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
- H01S3/083—Ring 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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
- H01S3/109—Frequency multiplication, e.g. harmonic generation
-
- 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
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/131—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
- H01S3/1312—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the optical pumping
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
- G02F1/3544—Particular phase matching techniques
- G02F1/3548—Quasi phase matching [QPM], e.g. using a periodic domain inverted structure
Abstract
The invention discloses a high-power narrow-linewidth continuous wave visible light optical parametric oscillator, comprising a pump laser and an annular resonant cavity; pump light generated by the pump laser enters the resonant cavity from an input mirror, and is reflected to an optical parametric oscillator nonlinear crystal by a first reflector for transformation; signal light, idler frequency light and rest pump light are output, and the rest pump light passes through a second reflector and a third reflector and then is output; the signal light is reflected to the input mirror by the second reflector, the third reflector, a fourth reflector, an optical parametric oscillator-frequency doubling nonlinear crystal and an output mirror and enters the resonant cavity for continuous oscillation; the idler frequency light is converted into broadband visible light laser by the second reflector, the third reflector, the fourth reflector and the optical parametric oscillator-frequency doubling nonlinear crystal and is output by the output mirror. Single frequency laser of 400nm-540nm is taken as a pumping source, and the annular cavity is taken as the resonant cavity, so the output power is increased, the beam quality is improved, and the linewidth is reduced.
Description
Technical field
The present invention relates to medical health equipment and biomedical sector, more particularly, the present invention relates to a kind of continuous wave visible light optical parametric oscillator of high power narrow linewidth.
Background technology
Tunable coherent light source all has important application prospect at numerous areas such as medical diagnosis and therapy, laser ranging, nonlinear optics, atmospheric environment detection and spectral measurements.What tunable laser was commonly used at present is titanium-doped sapphire laser, dye laser, color center laser and optical parametric oscillator etc.Wherein the tunable wavelength scope of titanium-doped sapphire laser reaches 650-1100nm.475-630nm wave band only has dye laser to reach, but dye laser is difficult to realize narrow-linewidth single frequency running.Also have some other solid and gas laser as neodymium-doped laser device, helium neon laser, fiber laser and CO
2laser etc., their wavelength be discrete or tunable wavelength scope very little.
OPO (OpticalParametricOscillator, optical parametric oscillator), titanium-doped sapphire laser and dye laser is all better than in tuning range and power output, the particularly appearance of some novel and high efficiency nonlinear crystals in recent years and development, optical parametric oscillator is made to become a kind of solid state laser that tuning range is the widest in the world at present, that acquisition broadband is tunable, the important channel of high coherent radiation light source and new wave band of laser, compensate for the defect that common lasers and frequency translation thereof can only export some specific wavelength laser, and there is compact conformation, easy to use and power is high, can produce from ultraviolet to features such as infrared laser emissions.Therefore for realizing the broadband tunable output of visible ray, general employing optical parametric oscillator technology.
Optical parametric oscillator utilizes the mixed frequency characteristic of nonlinear crystal to realize the device of frequency translation.From Men Lei-Luo Wei relation, in difference frequency process, often fall into oblivion a photon, will produce two low frequency photons simultaneously, these two low frequency light waves obtain gain in the process.Laser can be expanded to low-frequency range by the optical parametric oscillator technology based on second order nonlinear optical effect, produces tunable coherent radiation.Optical parametric oscillator effect provides gain with pump light, and nonlinear crystal, as the medium of parameter transform, makes it be amplified Energy Coupling to flashlight, produces new association light---an ideler frequency light simultaneously.
In parametric oscillation process, parameteric light (flashlight) does not need to be provided by outside, can be served as, utilize pump light to obtain gain in resonant cavity by noise (spontaneous radiation) starting of oscillation, is formed and vibrate and obtain output after overcoming loss.Therefore, nonlinear crystal is put into corresponding resonant cavity, as long as input high frequency pump light, the flashlight in background emission and ideler frequency light just can be made to be amplified simultaneously.
Optical parametric oscillator from appearance till now, Tremendous achievements.The OPO of people's paired pulses, locked mode and continuous drive manner has carried out large quantifier elimination, but because the OPO of continuous wave pumping has higher threshold value relative to the OPO of pulse, locked mode drive manner, this just requires the pump power that its pump light can provide higher, nonlinear crystal will have larger non linear coefficient, so the development of continuous wave OPO is always slower.The people such as Kumar adopted power output to reach the high power single frequency laser of tens watts as pumping source in 2011 by OPO, achieved a kind of high power single resonance OPO.When pump power is 28.6W, the gross output of OPO reaches 17.5W, and conversion efficiency reaches 61%, and wherein signal light power is 9.8W, and ideler frequency luminous power is 7.7W.2011, the people such as the Liu Chunchun of University Of Shanxi report the continuous broad tuning of the high efficiency based on a PPKTP crystal single-frequency doubly resonant optical parametric oscillator, pumping end is 526.5nm frequency multiplication Nd:YLF laser, this OPO threshold value is 30mW, under the pump power of 390mW, 156mW (0.8 μm) flashlight and the output of 89mW (1.5 μm) ideler frequency light near-infrared can be produced.
But all in all, the continuous tuning wave-length coverage that current continuous wave OPO technology can realize is also smaller, particularly focuses mostly near infrared band, and the achievement in research for visible light wave range Laser output is also fewer.Beam quality is good not simultaneously, and laser linewidth is wider, and power output is also not high enough.
Summary of the invention
For the weak point existed in above-mentioned technology, the invention provides a kind of continuous wave visible light optical parametric oscillator of high power narrow linewidth, adopt single-frequency 400nm-540nm laser as pumping source, annular chamber is as resonant cavity, make while raising power output, improve beam quality, reduce live width.
In order to realize according to these objects of the present invention and other advantage, the present invention is achieved through the following technical solutions:
The continuous wave visible light optical parametric oscillator of high power narrow linewidth of the present invention, comprising: pumping source, and it comprises the pump laser producing single-frequency pump light;
Resonant cavity, it is chamber ringwise, and described resonant cavity comprises the input mirror, the first speculum, optical parametric oscillator nonlinear crystal, the second speculum, the 3rd speculum, the 4th speculum, optical parametric oscillator-frequency doubling nonlinear crystal, the outgoing mirror that are positioned at described pump laser output;
Wherein, the pump light that described pump laser produces, described resonant cavity is entered by described input mirror, the conversion of described optical parametric oscillator nonlinear crystal is transmitted into through described first speculum, export the tunable near-infrared laser of broadband and residual pump light, the tunable near-infrared laser of described broadband comprises flashlight and ideler frequency light;
Described residual pump light exports after described second speculum, described 3rd speculum transmission;
Described flashlight is through described second speculum, described 3rd speculum, described 4th speculum reflection, and described optical parametric oscillator-frequency doubling nonlinear crystal transmission, described outgoing mirror reflex to described input mirror and enter described resonant cavity continuation vibration;
Described ideler frequency light is through described second speculum, described 3rd speculum, described 4th speculum reflection, and described optical parametric oscillator-frequency doubling nonlinear crystal transmission, converts broadband visible light laser to, export through outgoing mirror.
Preferably, described resonant cavity is six mirror annular chambers.
Preferably, described pump laser is the fiber laser of output wavelength 400nm-540nm single-frequency laser or semiconductor laser or solid state laser.
Preferably, described pump laser is output center wavelength 532nm, power is greater than the fiber laser of the single-frequency laser of 10W or semiconductor laser or solid state laser.
Preferably, the continuous wave visible laser of described broadband visible light laser to be wavelength the be high power narrow linewidth of 500nm-780nm.
Preferably, described input mirror is level crossing, and the minute surface towards described pump laser is coated with 400nm-540nm anti-reflection film, and another minute surface is coated with 400nm-540nm anti-reflection film and near-infrared high-reflecting film;
Described outgoing mirror is plano-concave mirror, and be coated with 780nm-1000nm high anti-and 1000nm-1560nm fractional transmission film and 500nm-780nm anti-reflection film towards the minute surface inside described resonant cavity, another minute surface is coated with near-infrared anti-reflection film and 500nm-780nm anti-reflection film.
Preferably, two of described optical parametric oscillator nonlinear crystal logical light faces are coated with 400nm-540nm anti-reflection film and near-infrared anti-reflection film;
Two logical light faces of described optical parametric oscillator-frequency doubling nonlinear crystal are coated with 500nm-780nm anti-reflection film and near-infrared anti-reflection film.
Preferably, described first speculum is plano-concave mirror, and the minute surface towards described input mirror is coated with 400nm-540nm high-reflecting film and near-infrared high-reflecting film;
Described second speculum is plano-concave mirror, is coated with 400nm-540nm fractional transmission and near-infrared high-reflecting film towards the minute surface inside described resonant cavity;
Described 3rd speculum is level crossing, is coated with 400nm-540nm fractional transmission and near-infrared high-reflecting film towards the minute surface inside described resonant cavity;
Described 4th speculum is plano-concave mirror, is coated with near-infrared high-reflecting film towards the minute surface inside described resonant cavity.
Preferably, also comprise the light beam coupling system between described pump laser and described input, described light beam coupling system comprises optical isolator and coupled lens.
The present invention at least comprises following beneficial effect:
1) pump laser produces single-frequency pump light, is conducive to the single-frequency stability ensureing pump light;
2) resonant cavity of the present invention chamber ringwise, compact conformation is stablized, and prevents standing wave from producing, suppressing many longitudinal modes, reaches the advantage improved beam quality, obtain narrow-linewidth laser output;
3) optical parametric oscillator nonlinear crystal adopts the thermal tuning tuning manner that combine tuning with the cycle, realizes resonant cavity and exports the tunable continuous wave visible light lasers of broadband;
4) by the quasi-phase matched of optical parametric oscillator nonlinear crystal, can utilize the maximum non linear coefficient of nonlinear crystal, also the power density of ideler frequency light in adjustable resonant cavity, makes it shg efficiency and reaches maximum, thus improve total conversion efficiency;
5) resonant cavity is six mirror annular chambers, is conducive to frequency stabilization and laser stabilization running, improves nonlinear conversion efficiency;
6) pump laser output wavelength 400nm-540nm, power are greater than the single-frequency laser of 10W, are conducive to improving power output, improving beam quality.
Part is embodied by explanation below by other advantage of the present invention, target and feature, part also will by research and practice of the present invention by those skilled in the art is understood.
Accompanying drawing explanation
Fig. 1 is the structural representation of the continuous wave visible light optical parametric oscillator of high power narrow linewidth of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to specification word to make those skilled in the art.
Should be appreciated that used hereinly such as " to have ", other element one or more do not got rid of in " comprising " and " comprising " term or the existence of its combination or interpolation.
As shown in Figure 1, the invention provides a kind of continuous wave visible light optical parametric oscillator of high power narrow linewidth, comprising:
Pumping source 10, it comprises the pump laser 11 producing single-frequency pump light;
Resonant cavity 20, it is chamber ringwise, and resonant cavity 20 comprises input mirror 21, first speculum 22, optical parametric oscillator nonlinear crystal 23, second speculum 24, the 3rd speculum 25, the 4th speculum 26, optical parametric oscillator-frequency doubling nonlinear crystal 27, outgoing mirror 28; Input mirror 21 is positioned at pump laser 11 output;
Wherein, the pump light that pump laser 11 produces, resonant cavity 10 is entered by input mirror 21, be transmitted into optical parametric oscillator nonlinear crystal 23 through the first speculum 22 to change, export the tunable near-infrared laser of broadband and residual pump light, the tunable near-infrared laser of broadband comprises flashlight and ideler frequency light;
Residual pump light exports after the second speculum 24, the 3rd speculum 25 transmission;
Flashlight reflects through the second speculum 24, the 3rd speculum 25, the 4th speculum 26, and optical parametric oscillator-frequency doubling nonlinear crystal 27 transmission, outgoing mirror 28 reflex to input mirror 21 and enter resonant cavity continuation vibration;
Ideler frequency light reflects through the second speculum 24, the 3rd speculum 25, the 4th speculum 26, and optical parametric oscillator-frequency doubling nonlinear crystal 27 transmission, converts broadband visible light laser to, export through outgoing mirror 28.
The continuous wave visible light optical parametric oscillator of a kind of high power narrow linewidth provided by the invention, pump laser 11 produces single-frequency pump light, is conducive to the single-frequency stability ensureing pump light; Resonant cavity 20 chamber ringwise, compact conformation is stablized, and prevents standing wave from producing, suppressing many longitudinal modes, improves beam quality, obtains narrow-linewidth laser output; Optical parametric oscillator nonlinear crystal 23 adopts thermal tuning and the cycle tuning tuning manner combined, and realizes resonant cavity and exports the tunable continuous wave near-infrared laser of broadband; By the quasi-phase matched of optical parametric oscillator nonlinear crystal 23, can utilize the maximum non linear coefficient of nonlinear crystal, also the power density of ideler frequency light in adjustable resonant cavity 20, makes it shg efficiency and reaches maximum, thus improve total conversion efficiency.
In above-mentioned execution mode, optical parametric oscillator nonlinear crystal 23 is any one in monolithic crystal, polylith cascade, and crystal specification is 0.5 × 8.2 × 30mm, and polarization cycle is 8.0-8.7 μm, and number of cycles is 10.Optical parametric oscillator nonlinear crystal 23 is any one in periodic polarized stoichiometric lithium tantalate, periodic polarized lithium niobate, periodic polarized doped with magnesia lithium niobate, periodic polarized mg-doped lithium niobate, periodic polarized potassium titanium oxide phosphate, periodic polarized arsenic acid titanyl rubidium.Optical parametric oscillator nonlinear crystal 23 is any one in room temperature, temperature controlling stove temperature control state.
In above-mentioned execution mode, optical parametric oscillator-frequency doubling nonlinear crystal 27 is any one in potassium titanium oxide phosphate, potassium dihydrogen phosphate, arsenic acid titanyl potassium, three lithium borates, barium metaborate, bismuth boracic acid, potassium niobate, arsenic acid titanyl rubidium, periodic polarized lithium niobate, periodic polarized potassium titanyl oxygenic phosphate(KTP) crystal.As the preferred embodiment of present embodiment, optical parametric oscillator-frequency doubling nonlinear crystal 27 adopts slab lithium triborate crystal, and crystalline size is 3 × 3 × 10mm, and cutting angle is 11.4 °,
As the preferred implementation of above-mentioned execution mode, resonant cavity 20 is six mirror annular chambers, the compact conformation of optical parametric oscillator, be easy to eliminate effects of spatial, prevent standing wave from producing, suppressing many longitudinal modes to produce, be conducive to frequency stabilization, beam quality can be improved preferably, acquisition narrow linewidth exports, and improves nonlinear conversion efficiency simultaneously.
As another embodiment of the invention, pump laser 11 is the fiber laser of output wavelength 400nm-540nm single-frequency laser or semiconductor laser or solid state laser.Wavelength 400nm-540nm single-frequency laser, is conducive to improving power output, improves beam quality, reduce live width.
As the optimal way of above-mentioned execution mode, the fiber laser that pump laser 11 is output center wavelength 532nm, power is greater than the single-frequency laser of 10W or semiconductor laser or solid state laser.Pump laser 11 output center wavelength 532nm, power are greater than the single-frequency laser of 10W, and power output, beam quality and live width all reach best.
In above-mentioned execution mode, the continuous wave visible laser of broadband visible light laser to be wavelength the be high power narrow linewidth of 500nm-780nm.By the continuous wave visible light optical parametric oscillator of high power narrow linewidth provided by the invention, the continuous wave visible laser that output wavelength is the high power narrow linewidth of 500nm-780nm can be realized.
As another embodiment of the invention, input mirror 21 is level crossings, and the minute surface towards pump laser 11 is coated with 400nm-540nm anti-reflection film, and another minute surface is coated with 400nm-540nm anti-reflection film and near-infrared high-reflecting film; Preferably, input mirror 21 is coated with 532nm anti-reflection film (transmitance is greater than 96%) towards the minute surface of pump laser 11, and another minute surface is coated with 532nm anti-reflection film (transmitance is greater than 96%) and 800-1560nm high-reflecting film (reflectivity is greater than 99.8%);
Outgoing mirror 28 is plano-concave mirrors, is coated with near-infrared fractional transmission film and 500nm-780nm anti-reflection film towards the minute surface inside resonant cavity 20, and another minute surface is coated with the anti-reflection and 500nm-780nm anti-reflection film of near-infrared; Preferably, outgoing mirror 28 is coated with 780nm-1000nm high anti-(reflectivity is greater than 99.8%) and 1000-1560nm fractional transmission (transmitance is greater than 90%) and 500-780nm anti-reflection film towards the minute surface inside resonant cavity 20, and another minute surface is coated with the anti-reflection and 500-780nm anti-reflection film (transmitance is greater than 98%) of 1000-1560nm.
As another embodiment of the invention, two logical light faces of optical parametric oscillator nonlinear crystal 23 are coated with 400nm-540nm anti-reflection film and near-infrared anti-reflection film; Preferably, two of optical parametric oscillator nonlinear crystal 23 logical light faces are coated with the anti-reflection and 800-1560nm anti-reflection film (transmitance is greater than 98%) of 532nm.
Two logical light faces of optical parametric oscillator-frequency doubling nonlinear crystal 27 are coated with 400nm-780nm anti-reflection film and near-infrared anti-reflection film.Preferably, two logical light faces of optical parametric oscillator-frequency doubling nonlinear crystal 27 are coated with the anti-reflection and 800-1560nm anti-reflection film (transmitance is greater than 98%) of 500-780nm.
As another embodiment of the invention, the first speculum 22 is plano-concave mirrors, and the minute surface towards input mirror 21 is coated with 400nm-540nm high-reflecting film and near-infrared high-reflecting film; Preferably, the first speculum 22 is coated with 532nm high anti-(reflectivity is greater than 99.8%) and 800-1560nm high-reflecting film (reflectivity is greater than 99.8%) towards the minute surface of input mirror 21.
Second speculum 24 is plano-concave mirrors, is coated with 400nm-540nm fractional transmission and near-infrared high-reflecting film towards the minute surface inside resonant cavity 20; Preferably, the second speculum 24 is coated with 532nm fractional transmission (transmitance is greater than 90%) and 800-1560nm high-reflecting film (reflectivity is greater than 99.8%) towards the minute surface inside resonant cavity 20.
3rd speculum 25 is level crossings, is coated with 400nm-540nm fractional transmission and near-infrared high-reflecting film towards the minute surface inside resonant cavity 20; Preferably, the 3rd speculum 25 is coated with 532nm fractional transmission (transmitance is greater than 90%) and 800-1560nm high-reflecting film (reflectivity is greater than 99.8%) towards the minute surface inside resonant cavity 20.
4th speculum 26 is plano-concave mirrors, is coated with near-infrared high-reflecting film towards the minute surface inside resonant cavity 20.Preferably, the 4th speculum 26 is coated with 800-1560nm high-reflecting film (reflectivity is greater than 99.8%) towards the minute surface inside resonant cavity 20.
As another embodiment of the invention, also comprise the light beam coupling system 30 between pump laser 11 and input.Light beam coupling system 30 is at least one in geometry coupling system, spectrum coupled system.The preferred implementation of present embodiment is that light beam coupling system 30 comprises optical isolator and coupled lens.Optical isolator is used for preventing pump light from returning from input mirror and causes damage to pump laser 11; Coupled lens makes pump light focus on.
Embodiment of the present invention are open as above, but it is not restricted to listed in specification and execution mode utilization.It can be applied to various applicable the field of the invention completely.Other amendment can be easily realized for those skilled in the art.Therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (9)
1. a continuous wave visible light optical parametric oscillator for high power narrow linewidth, is characterized in that, comprising:
Pumping source, it comprises the pump laser producing single-frequency pump light;
Resonant cavity, it is chamber ringwise, and described resonant cavity comprises the input mirror, the first speculum, optical parametric oscillator nonlinear crystal, the second speculum, the 3rd speculum, the 4th speculum, optical parametric oscillator-frequency doubling nonlinear crystal, the outgoing mirror that are positioned at described pump laser output;
Wherein, the pump light that described pump laser produces, described resonant cavity is entered by described input mirror, the conversion of described optical parametric oscillator nonlinear crystal is transmitted into through described first speculum, export the tunable near-infrared laser of broadband and residual pump light, the tunable near-infrared laser of described broadband comprises flashlight and ideler frequency light;
Described residual pump light exports after described second speculum, described 3rd speculum transmission;
Described flashlight is through described second speculum, described 3rd speculum, described 4th speculum reflection, and described optical parametric oscillator-frequency doubling nonlinear crystal transmission, described outgoing mirror reflex to described input mirror and enter described resonant cavity continuation vibration;
Described ideler frequency light is through described second speculum, described 3rd speculum, described 4th speculum reflection, and described optical parametric oscillator-frequency doubling nonlinear crystal transmission, converts broadband visible light laser to, export through outgoing mirror.
2. the continuous wave visible light optical parametric oscillator of high power narrow linewidth as claimed in claim 1, it is characterized in that, described resonant cavity is six mirror annular chambers.
3. the continuous wave visible light optical parametric oscillator of high power narrow linewidth as claimed in claim 1, is characterized in that, described pump laser is the fiber laser of output wavelength 400nm-540nm single-frequency laser or semiconductor laser or solid state laser.
4. the continuous wave visible light optical parametric oscillator of high power narrow linewidth as claimed in claim 3, it is characterized in that, the fiber laser that described pump laser is output center wavelength 532nm, power is greater than the single-frequency laser of 10W or semiconductor laser or solid state laser.
5. the continuous wave visible light optical parametric oscillator of high power narrow linewidth as claimed in claim 1, is characterized in that, the continuous wave visible laser of described broadband visible light laser to be wavelength the be high power narrow linewidth of 500nm-780nm.
6. the continuous wave visible light optical parametric oscillator of high power narrow linewidth as claimed in claim 1, is characterized in that,
Described input mirror is level crossing, and the minute surface towards described pump laser is coated with 400nm-540nm anti-reflection film, and another minute surface is coated with 400nm-540nm anti-reflection film and near-infrared high-reflecting film;
Described outgoing mirror is plano-concave mirror, and be coated with 780nm-1000nm high anti-and 1000nm-1560nm fractional transmission film and 500nm-780nm anti-reflection film towards the minute surface inside described resonant cavity, another minute surface is coated with near-infrared anti-reflection film and 500nm-780nm anti-reflection film.
7. the continuous wave visible light optical parametric oscillator of high power narrow linewidth as claimed in claim 1, is characterized in that,
Two logical light faces of described optical parametric oscillator nonlinear crystal are coated with 400nm-540nm anti-reflection film and near-infrared anti-reflection film;
Two logical light faces of described optical parametric oscillator-frequency doubling nonlinear crystal are coated with 500nm-780nm anti-reflection film and near-infrared anti-reflection film.
8. the continuous wave visible light optical parametric oscillator of high power narrow linewidth as claimed in claim 1, is characterized in that,
Described first speculum is plano-concave mirror, and the minute surface towards described input mirror is coated with 400nm-540nm high-reflecting film and near-infrared high-reflecting film;
Described second speculum is plano-concave mirror, is coated with 400nm-540nm fractional transmission and near-infrared high-reflecting film towards the minute surface inside described resonant cavity;
Described 3rd speculum is level crossing, is coated with 400nm-540nm fractional transmission and near-infrared high-reflecting film towards the minute surface inside described resonant cavity;
Described 4th speculum is plano-concave mirror, is coated with near-infrared high-reflecting film towards the minute surface inside described resonant cavity.
9. the continuous wave visible light optical parametric oscillator of the high power narrow linewidth according to any one of claim 1-8, it is characterized in that, also comprise the light beam coupling system between described pump laser and described input, described light beam coupling system comprises optical isolator and coupled lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610031149.5A CN105514779A (en) | 2016-01-18 | 2016-01-18 | High-power narrow-linewidth continuous wave visible light optical parametric oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610031149.5A CN105514779A (en) | 2016-01-18 | 2016-01-18 | High-power narrow-linewidth continuous wave visible light optical parametric oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105514779A true CN105514779A (en) | 2016-04-20 |
Family
ID=55722551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610031149.5A Pending CN105514779A (en) | 2016-01-18 | 2016-01-18 | High-power narrow-linewidth continuous wave visible light optical parametric oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105514779A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267301A (en) * | 2018-03-15 | 2018-07-10 | 中国人民解放军国防科技大学 | Intermediate infrared high-reflection optical element testing device and method based on optical parametric oscillator |
| CN110108657A (en) * | 2019-04-30 | 2019-08-09 | 中国科学院西安光学精密机械研究所 | The hypersensitivity mid-long wavelength IR images method and imaging system of room temperature operating |
| CN110556699A (en) * | 2019-09-16 | 2019-12-10 | 西安电子科技大学 | High-energy high-light beam quality tunable optical parametric oscillator pumped by nanosecond laser |
| CN110943359A (en) * | 2019-12-09 | 2020-03-31 | 浙江德扬精密仪器有限公司 | Small high-power optical parametric oscillator |
| JP2020534570A (en) * | 2017-09-21 | 2020-11-26 | キオプティック フォトニクス ゲーエムベーハー ウント コー カーゲー | Light source with multi-longitudinal mode continuous wave output based on multi-mode resonance OPO technology |
| CN112038881A (en) * | 2020-09-02 | 2020-12-04 | 山西大学 | Pump optical cavity enhanced double-resonance optical parametric oscillator and efficient conversion method |
| CN112640231A (en) * | 2018-09-20 | 2021-04-09 | 烟台龙驰光电技术有限公司 | Near-infrared laser and laser generation method |
| CN114142329A (en) * | 2021-12-01 | 2022-03-04 | 中国科学院理化技术研究所 | Narrow-linewidth ultraviolet laser |
| CN116191189A (en) * | 2023-04-19 | 2023-05-30 | 山西大学 | Single-frequency continuous optical parametric oscillator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296960A (en) * | 1993-02-26 | 1994-03-22 | Cornell Research Foundation, Inc. | Intracavity-doubled tunable optical parametric oscillator |
| CN104283103A (en) * | 2014-09-23 | 2015-01-14 | 中国科学院苏州生物医学工程技术研究所 | Optical parametric oscillator capable of outputting wide-waveband and tunable continuous waves with wave length of 530-780 nm |
| CN204517147U (en) * | 2015-04-08 | 2015-07-29 | 大连华扬科技有限公司 | A kind of single longitudinal mode continuous wave optical parametric oscillator |
| CN205355521U (en) * | 2016-01-18 | 2016-06-29 | 中国科学院苏州生物医学工程技术研究所 | Continuous wave visible light optical parametric oscillator of high power narrow linewidth |
-
2016
- 2016-01-18 CN CN201610031149.5A patent/CN105514779A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296960A (en) * | 1993-02-26 | 1994-03-22 | Cornell Research Foundation, Inc. | Intracavity-doubled tunable optical parametric oscillator |
| CN104283103A (en) * | 2014-09-23 | 2015-01-14 | 中国科学院苏州生物医学工程技术研究所 | Optical parametric oscillator capable of outputting wide-waveband and tunable continuous waves with wave length of 530-780 nm |
| CN204517147U (en) * | 2015-04-08 | 2015-07-29 | 大连华扬科技有限公司 | A kind of single longitudinal mode continuous wave optical parametric oscillator |
| CN205355521U (en) * | 2016-01-18 | 2016-06-29 | 中国科学院苏州生物医学工程技术研究所 | Continuous wave visible light optical parametric oscillator of high power narrow linewidth |
Non-Patent Citations (2)
| Title |
|---|
| QIZHI LI等: "Intracavity Frequency Doubling of PPKTP-Based Optical Parametric Oscillator", 《SPIE-OSA-IEEE》 * |
| 焦彬: "Yb:KGW脉冲激光器及多波长输出光参量振荡器的研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7135076B2 (en) | 2017-09-21 | 2022-09-12 | キオプティック フォトニクス ゲーエムベーハー ウント コー カーゲー | Light source with multi-longitudinal mode continuous wave output based on multi-mode resonant OPO technology |
| JP2020534570A (en) * | 2017-09-21 | 2020-11-26 | キオプティック フォトニクス ゲーエムベーハー ウント コー カーゲー | Light source with multi-longitudinal mode continuous wave output based on multi-mode resonance OPO technology |
| CN108267301A (en) * | 2018-03-15 | 2018-07-10 | 中国人民解放军国防科技大学 | Intermediate infrared high-reflection optical element testing device and method based on optical parametric oscillator |
| CN108267301B (en) * | 2018-03-15 | 2023-04-18 | 中国人民解放军国防科技大学 | Intermediate infrared high-reflection optical element testing device and method based on optical parametric oscillator |
| CN112640231B (en) * | 2018-09-20 | 2023-02-07 | 烟台龙驰光电技术有限公司 | Near-infrared laser and laser generation method |
| CN112640231A (en) * | 2018-09-20 | 2021-04-09 | 烟台龙驰光电技术有限公司 | Near-infrared laser and laser generation method |
| CN110108657A (en) * | 2019-04-30 | 2019-08-09 | 中国科学院西安光学精密机械研究所 | The hypersensitivity mid-long wavelength IR images method and imaging system of room temperature operating |
| CN110556699A (en) * | 2019-09-16 | 2019-12-10 | 西安电子科技大学 | High-energy high-light beam quality tunable optical parametric oscillator pumped by nanosecond laser |
| CN110943359A (en) * | 2019-12-09 | 2020-03-31 | 浙江德扬精密仪器有限公司 | Small high-power optical parametric oscillator |
| CN110943359B (en) * | 2019-12-09 | 2021-03-09 | 浙江德扬精密仪器有限公司 | Small high-power optical parametric oscillator |
| CN112038881A (en) * | 2020-09-02 | 2020-12-04 | 山西大学 | Pump optical cavity enhanced double-resonance optical parametric oscillator and efficient conversion method |
| CN114142329A (en) * | 2021-12-01 | 2022-03-04 | 中国科学院理化技术研究所 | Narrow-linewidth ultraviolet laser |
| CN116191189A (en) * | 2023-04-19 | 2023-05-30 | 山西大学 | Single-frequency continuous optical parametric oscillator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105514779A (en) | High-power narrow-linewidth continuous wave visible light optical parametric oscillator | |
| Capmany | Simultaneous generation of red, green, and blue continuous-wave laser radiation in Nd 3+-doped aperiodically poled lithium niobate | |
| Sun et al. | High energy and high efficiency 3.4 μ m extracavity KTA optical parametric oscillator | |
| Wang et al. | Efficient self-frequency doubling of Nd: GdCOB crystal by type-I phase matching out of its principal planes | |
| US7733926B2 (en) | Thulium laser pumped Mid-IR source with broadbanded output | |
| Phillips et al. | High-repetition-rate, all-solid-state, Ti: sapphire-pumped optical parametric oscillator for the mid-infrared | |
| Li et al. | A high-power, long-wavelength infrared ZnGeP 2 OPO pumped by a Q-switched Tm, Ho: GdVO 4 laser | |
| WO2020226912A1 (en) | Single crystal optical parametric amplifier | |
| Kieleck et al. | Compact high-power/high-energy 2 μm and mid-infrared laser sources for OCM | |
| CN205355521U (en) | Continuous wave visible light optical parametric oscillator of high power narrow linewidth | |
| CN102570268A (en) | Intermediate infrared laser | |
| US7362783B2 (en) | Optical frequency mixing | |
| Li | Multiwavelength visible laser based on the stimulated Raman scattering effect and beta barium borate angle tuning | |
| Singh et al. | 82 W continuous-wave green beam generation by intracavity frequency doubling of diode-side-pumped Nd: YAG Laser | |
| Pomeranz et al. | Tm: YAlO3 laser pumped ZGP mid-IR source | |
| Duan et al. | High-power eye-safe KTA-OPO driven by YVO4/Nd: YVO4 composite laser | |
| CN106410582A (en) | Shared chamber light parameter oscillator of human-eye safe wave-band continuous output | |
| Zhao et al. | Efficient and tunable 1.6-μm MgO: PPLN optical parametric oscillator pumped by Nd: YVO 4/YVO 4 Raman laser | |
| Li et al. | Realization of a tunable 455.5-nm laser with low intensity noise by intracavity frequency-doubled Ti: Sapphire laser | |
| Kato | High-efficiency high-power parametric oscillation in KNbO 3 | |
| GB2616130A (en) | Miniature mid-infrared laser based on double microdisks | |
| Huang et al. | Second Stokes 1129 nm generation in gray-trace resistance KTP intracavity driven by a diode-pumped Q-switched Nd: YVO 4 laser | |
| Huang et al. | Compact 1625-nm Noncritically Phase-Matched ${\rm KTiOPO} _ {4} $ Optical Parametric Oscillator Intracavity Driven by the ${\rm KTiOAsO} _ {4} $ Raman Laser | |
| Nebel et al. | Concepts and performance of solid state RGB laser sources for large-frame laser projection displays | |
| CN110797740A (en) | Intermediate infrared laser based on difference frequency of alkali metal laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |