CN106814516B - A kind of continuous wave optical parametric oscillator pumping resonance - Google Patents
A kind of continuous wave optical parametric oscillator pumping resonance Download PDFInfo
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- CN106814516B CN106814516B CN201710208120.4A CN201710208120A CN106814516B CN 106814516 B CN106814516 B CN 106814516B CN 201710208120 A CN201710208120 A CN 201710208120A CN 106814516 B CN106814516 B CN 106814516B
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- G—PHYSICS
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- 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
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- 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
- G02F1/3501—Constructional details or arrangements of non-linear optical devices, e.g. shape of non-linear crystals
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- 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
- G02F1/355—Non-linear optics characterised by the materials used
- G02F1/3551—Crystals
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- 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
- G02F1/3501—Constructional details or arrangements of non-linear optical devices, e.g. shape of non-linear crystals
- G02F1/3503—Structural association of optical elements, e.g. lenses, with the non-linear optical device
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Abstract
The invention discloses a kind of continuous wave optical parametric oscillators for pumping resonance, comprising: single-frequency pump laser, beam collimation unit, the first optoisolator, pumping Input coupling mirror, the first concave mirror, nonlinear crystal, the second concave mirror, dichroic mirror, optical band pass filter and OPO signal light output coupling mirror.Nonlinear crystal is placed directly between two concave mirrors by the present invention, by selecting the concave mirror of short focus, can obtain the facula area of smaller signal and pump light；The chamber for increasing signal optical cavity and pumping optical cavity using refrative cavity is long, can further decrease the facula area of signal and pump light in nonlinear crystal, realizes that extremely low oscillation threshold, oscillation threshold can be even lower than 30 milliwatts lower than 60 milliwatts.The continuous wave optical parametric oscillator of Low threshold can reduce the power requirement to pumping laser, and structure is relatively easy, it is easy to accomplish miniaturization and functionization.
Description
Technical field
The present invention relates to optical parametric oscillator fields, shake more particularly, to a kind of continuous wave optical parameter for pumping resonance
Swing device.
Background technique
Optical parametric oscillator (optical parametric oscillator, abbreviation OPO) is imitated using second nonlinear
It answers, by incident laser, referred to as pump light is converted to two different shoot lasers of frequency, and one of frequency the higher person is known as believing
Number light, another frequency is more lower to be known as ideler frequency light, and the frequency of pump light is equal to the sum of signal light and the frequency of ideler frequency light；Light
Parametric oscillator is used to expand the output waveband of laser emission, generates the laser emission of wideband adjustable.
Continuous wave optical parametric oscillator generally uses fiber amplifier as pumping source；Using longer period polarized non-
Linear crystal, for example, period polarized lithium columbate crystal (Periodically poled lithium niobate, referred to as
PPLN), as gain media to reduce oscillation threshold, oscillation threshold is generally 2-3W at this time.Typical continuous wave single resonance
The configuration of optical parametric oscillator and experimental result such as document E.Andrieux, T.Zanon, M.Cadoret, A.Rihan, and
J.-J.Zondy, " 500GHz mode-hop-free idler tuning range with a frequency-
Stabilized singly resonant optical parametric oscillator, " Opt.Lett.36,1212-
Shown in 1214 (2011).
It can be obtained in optical parametric oscillator using pumping harmonic technology so that pump laser vibrates in resonant cavity
Higher pump power density is obtained, the oscillation threshold of continuous wave optical parametric oscillator is greatly lowered.It tests at present obtained
The oscillation threshold for pumping the continuous wave optical parametric oscillator of resonance is 400 milliwatts or so.The continuous glistening light of waves of typical pumping resonance
The configuration of parametric oscillator and experimental result such as document F.Muller, A.Popp, F.Kuhnemann, and S.Schiller,
" Transportable, highly-sensitive photoacoustic spectrometer based on a
Continuous-wave dual-cavity optical parametric oscillator, " Opt.Express 11,
Shown in 2820-25 (2003).
Currently, still higher using the oscillation threshold of the continuous wave optical parametric oscillator of pumping harmonic technology, this is mainly
Because facula area of the pump light of optical parametric oscillator in existing configuration is larger；It needs using a watt single-frequency for grade output power
Laser and power amplifying system are as pumping source, thus pumping system complexity is high, and volume is bigger than normal.
Summary of the invention
The purpose of the present invention is to provide a kind of continuous waves of lower oscillation threshold (can be lower than 60 milliwatts even 30 milliwatts)
Optical parametric oscillator overcomes the problems, such as that prior art oscillation threshold is higher and high to pumping system demanded power output.
The present invention provides a kind of continuous wave optical parametric oscillators for pumping resonance, comprising: single-frequency pump laser, light beam
Collimation unit, the first optoisolator, pumping Input coupling mirror, the first concave mirror, nonlinear crystal, the second concave mirror, dichroic mirror,
Optical band pass filter and output coupling mirror；Single-frequency pump laser emits OPO pump light, OPO pump light warp as pumping source
Beam collimation unit collimated after using the optoisolator after, OPO pump light after collimation is successively by pumping input
Coupling mirror, the first concave mirror, nonlinear crystal, the second concave mirror and dichroic mirror, and by pumping Input coupling mirror, the first concave surface
Oscillation is formed in the first resonant cavity that mirror, nonlinear crystal, the second concave mirror and dichroic mirror are constituted；It is vibrated in the first resonant cavity
Pump light generate OPO signal light and OPO ideler frequency light by nonlinear crystal；OPO signal light is by pumping Input coupling mirror,
One concave mirror, nonlinear crystal, the second concave mirror, dichroic mirror, optical band pass filter and output coupling mirror constituted second
Oscillation is formed in resonant cavity；The OPO signal light vibrated in the second resonant cavity is exported by output coupling mirror, OPO ideler frequency light warp
It crosses the first concave mirror and the second concave mirror exports respectively.
Further, pumping Input coupling mirror plating OPO pump light part reflection, signal light high-reflecting film；Described first is recessed
Face mirror and the second concave mirror plate OPO pump light and high anti-, the ideler frequency light anti-reflection film of signal light；The dichroic mirror plates OPO pump light
High anti-, signal light anti-reflection film；The output coupling mirror plates OPO signal light part reflectance coating；The nonlinear crystal plating OPO pump
Pu, signal and ideler frequency light anti-reflection film；Wherein, high-reflecting film refers to that the film that power reflectance is greater than 99%, anti-reflection film refer to that power is saturating
The film that rate is greater than 97% is penetrated, part reflectance coating refers to film of the reflectivity less than 15%.
Further, beam collimation unit is for realizing the collimation to the single-frequency pump laser, and passes through change
The radius of pump spot pumps the matching of optical cavity spatial model to realize pumping laser with OPO.
Further, nonlinear crystal is that period polarized lithium columbate crystal, potassium titanyl oxygenic phosphate(KTP) crystal or other energy produce
The crystal of raw non-linear gain.
Further, continuous wave optical parametric oscillator further includes the long feedback control module of pump cavity, for keeping described
The resonance state of single-frequency pump laser and OPO pumping optical cavity.
Further, the long feedback control module of pump cavity includes: low-pass filter, frequency mixer, the bubble room Ke Ersi, second
Optoisolator, servo amplifier, oscillator, phase-shifter and photodetector；Pump light after collimation successively passes through the farad
Isolator vibrates in first resonant cavity after steeping the room Ke Ersi and the second optoisolator, reflected part light warp
The output of pumping Input coupling mirror is crossed, receives and generate electric signal by photon detector using after the second optoisolator, the telecommunications
Number it is transferred to frequency mixer；A part that oscillator generates in disturbing signal acts on the bubble room Ke Ersi, and another part passes through phase shift
It is transferred to frequency mixer after device and the electric signal from photodetector is mixed, the signal after mixing is transferred to low
Bandpass filter is transferred to servo amplifier by the low frequency signal of low-pass filter, the amplified signal after servo amplifier
For controlling and adjusting the single-frequency pump laser.
Further, the second optoisolator includes: the polarization spectroscope and quarter-wave plate set gradually, polarization point
Input light is become the line polarisation of particular polarization by light microscopic, and has beam splitting effect to light；Quarter-wave plate is used for will
Polarization direction and quarter-wave plate become rotatory polarization at the incident line polarisation at 45 degree of angles, the rotatory polarization of input can also be become
Polarization direction and quarter-wave plate at 45 degree of angles line polarisation.
Further, nonlinear crystal is placed in OPO pumping optical cavity, and the pump light of intracavitary oscillation is by described non-
Linear crystal can generate the gain of OPO signal light and ideler frequency light；OPO signal light is by the pumping Input coupling mirror, described
One concave mirror, the nonlinear crystal, second concave mirror, the dichroic mirror, the optical band pass filter and described defeated
Oscillation is formed in the signal optical cavity for the OPO that coupling mirror is constituted out, the OPO signal light of generation passes through the output coupling mirror
The OPO ideler frequency light of output, generation is exported by first concave mirror and second concave mirror；Using first concave mirror
Purpose with second concave mirror is the focusing for realizing OPO signal and pump light in the nonlinear crystal, to reduce OPO
Oscillation threshold.
Further, single-frequency pump laser can be single-frequency semiconductor, solid or optical fiber laser or single-frequency laser
Device and amplifier system.Optoisolator is for inhibiting pumping laser to be reflected back to the single-frequency pump laser.Pumping input
Coupling mirror is for realizing the single-frequency pump laser to the coupling of OPO pumping optical cavity.By the pumping Input coupling mirror
Other original parts in OPO pumping optical cavity in addition to the pumping Input coupling mirror are set as to the reflectivity of OPO pump light
The sum of loss by one path to OPO pump light is, it can be achieved that optimal pump light input coupling efficiency.Optical band pass filter is for real
Fabry-Perot now can be to realize to the single-frequency selection of OPO signal light and wavelength tuning to the bandpass filtering of OPO signal light
Sieve chamber, Birefringent Filter or other optical filtering elements.
For the present invention compared with the existing continuous wave optical parametric oscillator for using pumping harmonic technology, the present invention will be non-linear
Crystal is placed directly between two concave mirrors, by selecting the concave mirror of short focus, can obtain smaller OPO signal and pumping
The facula area of light；The chamber for increasing OPO signal optical cavity and pumping optical cavity using refrative cavity is long, can further decrease OPO signal
With facula area of the pump light in nonlinear crystal, realize that extremely low OPO oscillation threshold, oscillation threshold can be lower than 60 milliwatts
Even lower than 30 milliwatts.The continuous wave optical parametric oscillator of Low threshold can reduce the power requirement to pumping laser, structure phase
To simple, it is easy to accomplish miniaturization and functionization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the continuous wave optical parametric oscillator of pumping resonance provided in an embodiment of the present invention.
Fig. 2 is the long feedback control of pump cavity in the continuous wave optical parametric oscillator of pumping resonance provided in an embodiment of the present invention
The concrete structure schematic diagram of module.
Wherein, 1 be single-frequency pump laser, 2 be beam collimation unit, 3 be the first optoisolator, 4 be pumping input coupling
Close mirror, 5 be the first concave mirror, 6 be nonlinear crystal, 7 be the second concave mirror, 8 be dichroic mirror, 9 be optical band pass filter, 10
It is low-pass filter for output coupling mirror, 11,12 be frequency mixer, 13 be the bubble room Ke Ersi, 14 is the second optoisolator, 15 to watch
Take amplifier, 16 be oscillator, 17 be phase-shifter, 18 be photodetector.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, the specific embodiments are only for explaining the present invention, not
For limiting the present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below that
Not constituting conflict between this can be combined with each other.
Nonlinear crystal is placed directly between two concave mirrors by the present invention, can be with by selecting the concave mirror of short focus
Obtain the facula area of smaller OPO signal and pump light；Increase OPO signal optical cavity using refrative cavity and pumps the chamber of optical cavity
It is long, the facula area of OPO signal and pump light in nonlinear crystal can be further decreased, realizes extremely low OPO oscillation threshold
Value, oscillation threshold can be even lower than 30 milliwatts lower than 60 milliwatts.The continuous wave optical parametric oscillator of Low threshold can reduce pair
The power requirement of pumping laser, structure are relatively easy, it is easy to accomplish miniaturization and functionization.
The continuous wave optical parametric oscillator of the pumping resonance include: single-frequency pump laser 1, beam collimation unit 2, light every
From device 3, pumping Input coupling mirror 4, the first concave mirror 5, nonlinear crystal 6, the second concave mirror 7, dichroic mirror 8, optical band pass filter
Wave device 9, output coupling mirror 10 and the long feedback control module of pump cavity, wherein
Pumping source of the single-frequency pump laser 1 as optical parametric oscillator, through beam collimation unit 2 and the optoisolator
After 3, OPO pump light is successively by pumping Input coupling mirror 4, the first concave mirror 5, nonlinear crystal 6, the second concave mirror 7 and double
Look mirror 8, and by pumping Input coupling mirror 4, the first concave mirror 5,8 structure of nonlinear crystal 6, the second concave mirror 7 and dichroic mirror
At resonant cavity in formed oscillation.The pump light of intracavitary oscillation passes through nonlinear crystal 6, can generate OPO signal light and ideler frequency light
Gain；OPO signal light successively passes through by pumping Input coupling mirror 4, the first concave mirror 5, nonlinear crystal 6, the second concave mirror
7, dichroic mirror 8, optical band pass filter 9 and output coupling mirror 10, and by pumping Input coupling mirror 4, the first concave mirror 5,
The letter for the OPO that nonlinear crystal 6, the second concave mirror 7, dichroic mirror 8, optical band pass filter 9 and output coupling mirror 10 are constituted
Oscillation is formed in number optical cavity.The effect of resonant cavity is to allow intracavitary light that can obtain positive feedback, and selecting can be in resonant cavity
The light of the wavelength of interior resonance.The OPO signal light of generation is exported by output coupling mirror 10, and the OPO ideler frequency light of generation passes through first
Concave mirror 5 and the output of the second concave mirror 7；Purpose using the first concave mirror 5 and the second concave mirror 7 is to realize OPO signal and pump
Focusing of the Pu light in nonlinear crystal 6, signal light and pump light are in crystal inner focusing, so that both light are in crystals
Facula area is small, if both light cannot focus in nonlinear crystal 6, since the facula area of focal position is minimum
, so will lead to the facula area of the signal light and pump light in nonlinear crystal 6 than both light while non-linear
Facula area when 6 inner focusing of crystal is big.According to document Robert W.Boyd, Nonlinear Optics 3rd ed. I
Know that facula area of the light beam of resonance in nonlinear crystal 6 is smaller, oscillation threshold is with regard to smaller.So OPO signal light and
Pump light can reduce the oscillation threshold of OPO in 6 inner focusing of nonlinear crystal.
Also as an end of pumping optical cavity while pumping Input coupling mirror of the Input coupling mirror 4 as pump light
Face reflecting mirror, so that pump light, in intra resonant cavity roundtrip, pump light is reflected and makes pump light by the first concave mirror 5
It assembles, the effect of nonlinear crystal 6 is to generate ideler frequency light using second order nonlinear effect, and the second concave mirror 7 reflects pump light
And pump light is assembled, 8 reflected pump light of dichroic mirror makes signal light transmission simultaneously；By the position for adjusting dichroic mirror 8
Come change OPO pumping optical cavity chamber it is long, or adjust single-frequency pump laser 1 wavelength so that pump light is in OPO pump light
It is vibrated in resonant cavity, the pumping light power density of enhancing is realized in OPO resonant cavity；By the long feedback control module of pump cavity come
Keep the resonance state of single-frequency pump laser 1 and OPO pumping optical cavity.
In embodiments of the present invention, it is 96% and signal light reflection that pumping Input coupling mirror 4, which plates OPO pumping light reflectivity,
Rate is greater than 99.5% film；First concave mirror 5 is identical with the film that the second concave mirror 7 plates, and plates OPO pump light and signal light reflection
Rate is both greater than film of the reflectivity less than 20% of 99.5% and ideler frequency light；Dichroic mirror 8 plates OPO pumping light reflectivity and is greater than
99.5% and film of the signal light reflectivity less than 0.5%；Output coupling mirror 10 plates the film that OPO signal light reflectivity is 95%；
6 two surfaces of nonlinear crystal all plate so that the reflectivity of OPO pump light, signal light and ideler frequency light these three light is both less than
2% film.
The concave mirror of short focus is selected, the present embodiment select to use radius of curvature for 75 millimeters of concave mirror.Concave mirror is bent
The overall principle of the selection of rate radius is so that oscillation threshold is lower.
As an embodiment of the present invention, nonlinear crystal 6 can choose PPLN, when the pump light (i.e. laser) of OPO
Wavelength be 1040 nanometers, when the polarization cycle of PPLN is 30.2 microns, the wavelength of signal light and ideler frequency light is respectively 1517 to receive
Rice and 3305 nanometers.The wavelength for locking OPO pump light changes the signal light wavelength of OPO by tuning optical band pass filter 9
And the polarization cycle or temperature of synchronous change PPLN, the tuning that ideler frequency optical wavelength is exported to OPO may be implemented.
In embodiments of the present invention, single-frequency pump laser 1 can be single-frequency semiconductor, solid or optical fiber laser, or
Single-frequency laser and amplifier system.Beam collimation unit 2 passes through and changes for realizing the collimation to single-frequency pump laser 1
Become the radius of pump spot to realize the matching of pumping laser and OPO pumping optical cavity spatial model.Optoisolator 3 is for pressing down
Pumping laser processed is reflected back to the single-frequency pump laser.Input coupling mirror 4 is pumped for realizing single-frequency pump laser 1
To the coupling of OPO pumping optical cavity.It is humorous that pumping Input coupling mirror 4 is set as OPO pump light to the reflectivity of OPO pump light
Other original parts in vibration chamber in addition to pumping Input coupling mirror 4 are to the sum of loss by one path of OPO pump light, it can be achieved that optimal pump
Pu light input coupling efficiency.Nonlinear crystal 6 can be period polarized lithium columbate crystal, potassium titanyl oxygenic phosphate(KTP) crystal or other energy
Generate the crystal of non-linear gain.Optical band pass filter 9 is for realizing the bandpass filtering to OPO signal light, to realize to OPO
The single-frequency of signal light selects and wavelength tuning, can be Fabry-Perot-type cavity, Birefringent Filter or other optically filterings member
Part.
In embodiments of the present invention, the long feedback control module of pump cavity is for realizing the single-frequency pump laser 1 and OPO
Pump the resonance state of optical cavity, wherein the pump light that single-frequency pump laser 1 generates is after collimator 2 is collimated
Pump light, the pump light after collimation successively passes through faraday isolator 3, the room bubble Ke Ersi 13, second optical isolation
Device 14, the second optoisolator 14 are made of a polarization spectroscope and a quarter-wave plate, the light come out from isolator 14
By pumping Input coupling mirror 4, by the pump light after pumping Input coupling mirror 4 by being omitted behind pumping Input coupling mirror 4
Structure reflect, part light by pumping Input coupling mirror 4 export, after the second optoisolator 14, by photon detection
Device 18 receives, so that electric signal is generated, the electric signal transmission to frequency mixer 12.One disturbing signal of generation of oscillator 16, one
It is allocated as steeping the room Ke Ersi, a part is transferred to frequency mixer 12 and the electricity from photodetector 18 after phase-shifter 17
Signal is mixed, and the signal after mixing is transferred to low-pass filter 11, passes through the low frequency signal of low-pass filter 11
It is transferred to servo amplifier 15, the amplified signal after servo amplifier 15 can directly act on single-frequency pump laser 1, rise
To the effect for controlling and adjusting single-frequency pump laser 1.
When the long feedback control module of pump cavity described in Fig. 2 is applied to OPO described in Fig. 1, in conjunction with Fig. 1 and figure
The connection relationship of optical path and device in 2 combines each component of Fig. 1 and Fig. 2.Specifically, being exactly in Fig. 1
The bubble room Ke Ersi 13 and the second optoisolator 14, low pass is added between the faraday isolator 3 and pumping Input coupling mirror 4 of description
Filter 11, frequency mixer 12, servo amplifier 15, oscillator 16, phase-shifter 17 and photodetector 18 are according to described in Fig. 2
Connection relationship is added in Fig. 1.
The long feedback control module of the pump cavity utilizes phase-modulation using the resonant frequency of resonant cavity as reference frequency standard
Technology respectively generates a sideband in laser frequency two sides, and the optical signal after reference cavity is reflected is compared with modulated signal
And after filter and amplification, obtains laser frequency and deviate the error signal for referring to cavity resonant frequency, fed back and controlled using error signal drives
The a certain parameter that system processed adjusts laser makes laser frequency stabilization on the resonant frequency of optical resonator.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. a kind of continuous wave optical parametric oscillator for pumping resonance characterized by comprising single-frequency pump laser (1), light beam
Collimation unit (2), the first optoisolator (3), pumping Input coupling mirror (4), the first concave mirror (5), nonlinear crystal (6), the
Two concave mirrors (7), dichroic mirror (8), optical band pass filter (9) and output coupling mirror (10)；
Single-frequency pump laser (1) emits OPO pump light as pumping source, and OPO pump light carries out quasi- through beam collimation unit (2)
After straight using the optoisolator (3) after, OPO pump light after collimation is successively by pumping Input coupling mirror (4), first recessed
Face mirror (5), nonlinear crystal (6), the second concave mirror (7) and dichroic mirror (8), and by pumping Input coupling mirror (4), first recessed
Oscillation is formed in the first resonant cavity that face mirror (5), nonlinear crystal (6), the second concave mirror (7) and dichroic mirror (8) are constituted；
The pump light vibrated in the first resonant cavity generates OPO signal light and OPO ideler frequency light by nonlinear crystal (6)；OPO letter
Number light is by pumping Input coupling mirror (4), the first concave mirror (5), nonlinear crystal (6), the second concave mirror (7), dichroic mirror
(8), oscillation is formed in the second resonant cavity that optical band pass filter (9) and output coupling mirror (10) are constituted；
The OPO signal light vibrated in the second resonant cavity is exported by output coupling mirror (10), and OPO ideler frequency light passes through the first concave surface
Mirror (5) and the second concave mirror (7) export respectively.
2. continuous wave optical parametric oscillator as described in claim 1, which is characterized in that pumping Input coupling mirror (4) plating
The reflection of OPO pump light part, signal light high-reflecting film；First concave mirror (5) and the second concave mirror (7) plate OPO pump light
With high anti-, the ideler frequency light anti-reflection film of signal light；High anti-, the signal light anti-reflection film of dichroic mirror (8) plating OPO pump light；The output
Coupling mirror (10) plates OPO signal light part reflectance coating；Nonlinear crystal (6) the plating OPO pumping, signal and ideler frequency light are anti-reflection
Film；
Wherein, high-reflecting film refers to that the film that power reflectance is greater than 99%, anti-reflection film refer to the film that power transmittance is greater than 97%, portion
Reflectance coating is divided to refer to film of the reflectivity less than 15%.
3. continuous wave optical parametric oscillator as described in claim 1, which is characterized in that the beam collimation unit (2) is used for
It realizes the collimation to the single-frequency pump laser, and realizes that pumping laser and OPO pump by the radius of change pump spot
The matching of Pu optical cavity spatial model.
4. continuous wave optical parametric oscillator as described in claim 1, which is characterized in that the nonlinear crystal (6) is the period
Polarized lithium columbate crystal, potassium titanyl oxygenic phosphate(KTP) crystal or other crystal that can generate non-linear gain.
5. continuous wave optical parametric oscillator as described in claim 1, which is characterized in that the continuous wave optical parametric oscillator is also
Including the long feedback control module of pump cavity, for keeping the single-frequency pump laser and OPO to pump the resonance of optical cavity
State.
6. continuous wave optical parametric oscillator as claimed in claim 5, which is characterized in that the long feedback control module of pump cavity
It include: low-pass filter (11), frequency mixer (12), the bubble room Ke Ersi (13), the second optoisolator (14), servo amplifier
(15), oscillator (16), phase-shifter (17) and photodetector (18)；
Pump light after collimation successively passes through first optoisolator (3), steeps the room Ke Ersi (13) and the second optoisolator
(14) it being vibrated in first resonant cavity after, reflected part light is exported by pumping Input coupling mirror (4), using
It is received after second optoisolator (14) by photon detector (18) and generates electric signal, electric signal transmission to frequency mixer (12)；
A part that oscillator (16) generates in disturbing signal acts on the bubble room Ke Ersi (13), and another part passes through phase-shifter
(17) it is transferred to frequency mixer (12) after and the electric signal from photodetector (18) is mixed, by the letter after mixing
Number low-pass filter (11) are transferred to, are transferred to servo amplifier (15) by the low frequency signal of low-pass filter (11), passed through
Amplified signal after servo amplifier (15) is for controlling and adjusting the single-frequency pump laser (1).
7. continuous wave optical parametric oscillator as claimed in claim 6, which is characterized in that the second optoisolator (14) packet
Include: input light is become the line of particular polarization by the polarization spectroscope and quarter-wave plate set gradually, polarization spectroscope
Polarisation, and have beam splitting effect to light；Quarter-wave plate is used for polarization direction and quarter-wave plate into 45 degree of angles
Incident line polarisation becomes rotatory polarization, or the rotatory polarization of input is become polarization direction and quarter-wave plate into the line at 45 degree of angles
Polarisation.
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| CN109038201B (en) * | 2018-08-30 | 2019-08-06 | 长春理工大学 | A kind of more optical parametric oscillators of energy component proportion active control |
| CN110112642B (en) * | 2019-05-20 | 2024-04-02 | 中国科学技术大学 | Optical parametric oscillator |
| CN110571638B (en) * | 2019-08-16 | 2021-11-02 | 华中科技大学 | Broadband double-oscillation parametric oscillator for reflecting injected pump light |
| CN110716365B (en) * | 2019-11-28 | 2020-12-25 | 南京大学 | Frequency decorrelation polarization entanglement source preparation device based on reverse phase matching |
| CN110880670A (en) * | 2019-11-29 | 2020-03-13 | 山东大学 | High-efficiency optical parametric oscillator with adjustable threshold value |
| US11418162B2 (en) | 2020-01-22 | 2022-08-16 | International Business Machines Corporation | Band-pass Josephson traveling wave parametric amplifier |
| CN112054378B (en) * | 2020-09-15 | 2022-09-06 | 中国科学技术大学 | Optical parametric oscillation device with intracavity compensation and spectrometer |
| CN114628982A (en) * | 2020-12-11 | 2022-06-14 | 核工业理化工程研究院 | Parameter oscillation optical system and working method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6757096B2 (en) * | 2000-10-25 | 2004-06-29 | Stephan Schiller | Short pulse optical parametric oscillator system |
| WO2009089808A1 (en) * | 2008-01-17 | 2009-07-23 | Deutsche Telekom Ag | Optical parametric oscillator having additional amplifier in the resonator |
| WO2015097972A1 (en) * | 2013-12-26 | 2015-07-02 | Sony Corporation | Control device, control method, and program |
| CN106405974A (en) * | 2016-11-29 | 2017-02-15 | 华中科技大学 | Device and method for producing ultra wide band optical radiation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6150630A (en) * | 1996-01-11 | 2000-11-21 | The Regents Of The University Of California | Laser machining of explosives |
-
2017
- 2017-03-31 CN CN201710208120.4A patent/CN106814516B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6757096B2 (en) * | 2000-10-25 | 2004-06-29 | Stephan Schiller | Short pulse optical parametric oscillator system |
| WO2009089808A1 (en) * | 2008-01-17 | 2009-07-23 | Deutsche Telekom Ag | Optical parametric oscillator having additional amplifier in the resonator |
| WO2015097972A1 (en) * | 2013-12-26 | 2015-07-02 | Sony Corporation | Control device, control method, and program |
| CN106405974A (en) * | 2016-11-29 | 2017-02-15 | 华中科技大学 | Device and method for producing ultra wide band optical radiation |
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