CN104167659B - Method for adjusting mode matching of pump light and single-resonance optical parameter cavity - Google Patents
Method for adjusting mode matching of pump light and single-resonance optical parameter cavity Download PDFInfo
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- CN104167659B CN104167659B CN201410452706.1A CN201410452706A CN104167659B CN 104167659 B CN104167659 B CN 104167659B CN 201410452706 A CN201410452706 A CN 201410452706A CN 104167659 B CN104167659 B CN 104167659B
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Abstract
The invention provides a method for adjusting the mode matching of pump light and a single-resonance optical parametric cavity, which comprises the following steps: adjusting signal light to match with an optical parametric cavity mode; locking the optical parameter cavity to obtain the frequency-doubled light output of the signal light; adjusting the frequency-doubled light to match the auxiliary non-degenerate optical cavity mode; adjusting the pump light from the other direction to match the nondegenerate optical cavity mode; obtaining the mode matching of the pump light and the optical parametric cavity. The method has the advantages of convenient operation, high matching precision, visual result and good practical value.
Description
Technical field
The present invention relates to a kind of method adjusting pump light and single Resonant parameter chamber pattern match, specifically a kind of profit
Mate chamber with a nondegenerate optics cavity as auxiliary mode, the pattern match of off-resonance light beam and optical parameter chamber is converted to
Light beam and the method for compensated cavity pattern match.
Background technology
Compressed state optical field is a kind of very important non-classical optical state, can apply to detection, the optical precision of gravitational wave
The research fields such as measurement, the generation of entangled, quantum communication.Especially in terms of quantum communication, two single-mode squeezing state light
Or a two-mode squeezed vacuum state can be used to produce and tangle light, tangle light as the basis of quantum information and core, permissible
Complete quantum entanglement transfer, the Quantum Teleportation of ultraweak information, quantum secret communication, quantum dense coding and quantum number defect
Important principle experiment Deng the quantum communications field.
Optical parametric oscillator process is the important technical obtaining compressed state optical field, according to optics parametric oscillator (opo) quantum
The theory analysis of noise, can obtain theoretical expression (P.K.Lam, T.C.Ralph, the B.C.Buchler of quadrature component compression
er al.,Optimization and transfer of vacuum squeezing from an optical
parametric oscillator,J.Opt.B:Quantum Semiclass.Opt.1 (1999) 469-474) as follows：
Wherein, ηescIt is the escape efficiency of optics parametric oscillator (opo), under equal conditions, escape efficiency is higher, the compression of acquisition
Degree is higher.Escape efficiency is the ratio of optics parametric oscillator (opo) output coupling transmissivity and total losses, for fixing output coupling
Close transmissivity, the interior cavity loss in optical parameter chamber is less, and escape efficiency is higher.And interior cavity loss not only with tracavity optical element
Quality, and relevant with the mould matching efficiency in optical parameter chamber with flashlight.Mould matching efficiency is higher, and escape efficiency is higher, pressure
Contracting degree is higher.Therefore, the raising of the pattern match efficiency of flashlight is the key obtaining high-quality compression.Knowable to formula (a),
The parameter of another impact degree of compression is threshold value P in optical parameter chamberth, the threshold value of optics parametric oscillator (opo) is higher, obtains same
The pump power that needs of parametric gain higher, and the raising of pump power can lead to the fuel factor of nonlinear crystal to be aggravated, shadow
Ring the acquisition of squeezed light.Simultaneously need to the requirement to meet Classical Gain for the power of raising pump light, it is that pump laser proposes
Requirements at the higher level.In the case of other condition identicals, threshold value P in optical parameter chamberthWith mating of pump light and optical parameter chamber
Efficiency is relevant, and pump light is higher with the matching efficiency in optical parameter chamber, and the threshold value in optical parameter chamber is lower, is more readily available high pressure
Contracting degree light.In addition, if pump light is inefficient with the pattern match in optical parameter chamber, pump light may excite optical parameter
High-order transverse mode vibration in chamber, the efficiency that impact pump light is interacted with fundamental signal light.Therefore, obtain efficient pumping
Light and optical parameter chamber pattern match are another key factors obtaining high-quality compression.
Flashlight vibrates in optical parameter chamber, thus the fineness of the long transmission signal in scanning chamber is higher, can observe master
Mould intensity accounts for the ratio of all mode intensity, obtains pattern match efficiency.By from suitable lens group and adjustment flashlight
Direction make pattern match efficiency reach maximum, typically require pattern match efficiency be more than 99%.In single Resonant parameter chamber
In, pump light does not resonate (passing through for generally double times) in optical parameter chamber, and the fineness of transmission signal is very low, shape such as Fig. 1
Shown, mate the bad little mould leading to and be submerged in main mould it is impossible to directly observe transmission signal to obtain pattern match efficiency
Size.
In prior art, researcher would generally first change one group of optical parameter chamber hysteroscope (this chamber to pumping photoresonance
The fineness of middle pump light is high), then the direction from suitable lens group and adjustment pump light makes pattern match efficiency reach
Maximum, gains the hysteroscope that pump light is not resonated again after matching.Change hysteroscope not only to bother, and Renewal process lumen length is difficult
Exempt to change, the actual pattern match efficiency of impact.
Another kind of method of prior art is under same pump power, and the Classical Gain observing optical parameter chamber is big
Little, Classical Gain is higher, shows that pump light is higher with the pattern match efficiency in optical parameter chamber.The defect of the method is to compare
The relative size (such as pattern match efficiency is to improve or reduce) of pattern match efficiency during relatively adjusting, and be not aware that
The value (whether reaching 99%) of absolute mode matching efficiency, adjusts process blindly.Thus, not only operating process is loaded down with trivial details, and right
The measurement of pattern match efficiency is not directly perceived.
The present invention proposes a kind of method adjusting pump light and single Resonant parameter chamber pattern match, can be changed without
In the case of the hysteroscope of optical parameter chamber, using the nondegenerate optics cavity of auxiliary, and can be straight by observing the transmission signal of compensated cavity
Obtain pattern match efficiency numerical value, obtain pump light and the efficient pattern match in optical parameter chamber.Have simple, smart
Really, the advantages of directly perceived, there is important using value.
Content of the invention：
It is an object of the invention to provide one kind is easy, accurately, intuitively adjust pump light and list Resonant parameter chamber mould
The method of formula coupling.
The core concept of the present invention is that the pattern match adjusting non-resonant pump beam in optical parameter chamber is converted into
Adjust the pattern match of pump beam and the nondegenerate optics cavity of resonance auxiliary.First, using being placed in flashlight light path
Lens group converts the parameter of flashlight, so that flashlight is mated with optical parameter chamber implementation pattern；Then, lock optical parameter chamber
Chamber length makes flashlight strengthen in optical parameter chamber internal resonance, obtains the frequency multiplication light output of flashlight；With a nondegenerate optics cavity
As compensated cavity, by the frequency doubled light injection nondegenerate optics cavity of optical parameter chamber output, and convert the ginseng of frequency doubled light with lens group
Number makes frequency doubled light mate with nondegenerate optics cavity implementation pattern；Pump light is injected compensated cavity from the another side of compensated cavity, is used in combination
Lens group converts pump light light beam parameters, so that pump light is mated with compensated cavity implementation pattern；Ripple due to pump light and frequency doubled light
Length is equal, according to reversibility of optical path principle, that is, realizes pump light and optical parameter chamber pattern match.
The invention provides a kind of method adjusting pump light and single Resonant parameter chamber pattern match it is characterised in that
Comprise the following steps：
1), the first lens group with being placed in the front signal light light path of optical parameter chamber converts flashlight in optical parameter chamber
Interior mode sizes, make flashlight mate with the eigen mode implementation pattern in optical parameter chamber.
Insert the first lens group of proper focal length before optical parameter chamber, the transverse mode size of conversion flashlight is so as to transverse mode
Pattern is consistent with the eigen mode pattern in optical parameter chamber.Adjust the first guide-lighting microscope group, make signal beams humorous in optical parameter chamber
Shake and be completely superposed with its eigen mode, the chamber scanning optical parameter chamber by the first piezoelectric ceramics is long, by the 3rd detector
Observe that optical parameter chamber exports the transmission peaks curve of laser.Because flashlight is the resonant beam in optical parameter chamber, fineness
Higher, the journey of flashlight and optical parameter chamber pattern match can be obtained by the direct ratio observing each pattern of transmission peaks
Degree.In a free spectral range, when the main peak of transmission peaks reach highest and no secondary peak occur or secondary peak only account for total peak energy amount
Less than 1% when, now achieve the pattern match of signal beams and optical parameter chamber.
2), the chamber in locking optical parameter chamber is long, makes the chamber length in optical parameter chamber meet resonance in the frequency of flashlight and increases
Strong condition, obtain flashlight frequency multiplication light output.
After the chamber length in locking optical parameter chamber, in optical parameter chamber, the power density of flashlight is higher, in optical parameter chamber
Interact in interior nonlinear crystal, obtain the frequency multiplication light output of flashlight, the wavelength of this frequency doubled light and pump light
Wavelength is identical, and light beam parameters (waist spot, the angle of divergence) are identical with light beam parameters during pump light best pattern match.
3), the frequency doubled light obtaining after the locking of optical parameter chamber is imported the nondegenerate optics cavity of an auxiliary, with being placed on
The second lens group conversion mode sizes in nondegenerate optics cavity for the frequency doubled light between optical parameter chamber and nondegenerate optics cavity,
Frequency doubled light is made to mate with the eigen mode implementation pattern of nondegenerate optics cavity.
Choose all anti-to the pump light height nondegenerate optics cavity of all hysteroscopes as compensated cavity, thus compensated cavity is to pump light
The fineness of (and frequency doubled light) is all very high, can obtain flashlight and optics by the direct ratio observing each pattern of transmission peaks
The degree of parameter chamber pattern match.The second lens group of proper focal length, the horizontal stroke of conversion frequency multiplication light beam is inserted behind optical parameter chamber
Mould size is so as to Transverse mode is consistent with the eigen mode pattern of compensated cavity.Adjust the second guide-lighting microscope group, make frequency multiplication light beam in auxiliary
Chamber interior resonance is simultaneously completely superposed with its eigen mode, and the chamber scanning compensated cavity by the second piezoelectric ceramics is long, by the first detector is
Transmission peaks curve that compensated cavity export laser can be observed.In a free spectral range, when the main peak of transmission peaks reaches highest
And no secondary peak occur or secondary peak only account for total peak energy amount less than 1% when, now achieve the mould of frequency multiplication light beam and compensated cavity
Formula is mated.
4), with being placed on the 3rd lens group conversion pump light of the nondegenerate optics cavity other end in nondegenerate optics cavity
Mode sizes, make pump light mate with the eigen mode implementation pattern of nondegenerate optics cavity.
3rd lens group of proper focal length is inserted on the other end of compensated cavity, the input path of pump light, converts pumping
The transverse mode size of light beam is so as to Transverse mode is consistent with the eigen mode pattern of compensated cavity.The 3rd smooth microscope group is led in regulation, makes pump light
Bundle is completely superposed in compensated cavity interior resonance and with its eigen mode, and the chamber scanning compensated cavity by the second piezoelectric ceramics is long, by second
Detector can be observed the transmission peaks curve that compensated cavity exports laser.In a free spectral range, when the main peak of transmission peaks
Reach highest and no secondary peak occur or secondary peak only account for total peak energy amount less than 1% when, now achieve pump beam with auxiliary
Help the pattern match in chamber.
5), pump light is equal with frequency multiplication optical wavelength, according to reversibility of optical path principle, pump light and optical parameter chamber
Eigen mode achieves pattern match.
Described optics parametric oscillator (opo) is two mirror chambeies, three mirror cavity or four mirror chambeies etc..
Optically nonlinear crystal is comprised in described optics parametric oscillator (opo).Nonlinear crystal is used for pump light and flashlight
Nonlinear interaction obtains squeezed light.Meanwhile, it is used as frequency-doubling crystal when pump light is with optical parameter chamber pattern match.
Described in step 1), step 3) and step 4) implementation pattern coupling when the lens group that adopted be one or many
The combination of individual lens.Need to carry out the selection of lens group according to the parameter of elementary beam and the parameter of target beam, make elementary beam warp
Cross light beam and chamber eigen mode after lens group conversion waist spot equal in magnitude, position coincidence.
By the enforcement of the method, can be the pattern match conversion adjusting non-resonant pump beam in optical parameter chamber
For adjusting the pattern match of pump beam and resonance compensated cavity.There is simplicity, efficient and accurate, to obtaining high-quality pressure
Contracting light output is significant.
The method adjusting pump light and single Resonant parameter chamber pattern match of the present invention and traditional method phase
Ratio has advantages below：
(1), compared with carrying out the method for pattern match with the hysteroscope that replacing is anti-to pump light height, the method does not need to change light
Learn the hysteroscope in parameter chamber, but the off-resonance mould being difficult observing pattern matching efficiency is mated with optical parameter chamber and is converted to non-co-
Shake the pattern match of mould and compensated cavity, it is to avoid the change of optical parameter chamber chamber length in hysteroscope Renewal process, there is regulation easy
With accurate advantage.
(2), compared with carrying out the method for pattern match with the Classical Gain observing optical parameter chamber, the method can directly be read
The height of exit pattern matching efficiency, has directly perceived and efficient advantage.
Brief description
When Fig. 1 is scanning optical parameter chamber, the transmission peaks curve of pump beam
Fig. 2 is by the use of nondegenerate three mirror optics cavity as compensated cavity, adjusts pump beam and two mirror optical parameter chamber patterns
Coupling, and the schematic device that flashlight, pump light produce
Fig. 3 is in embodiment 1, during scanning three mirror nondegenerate optics cavity, the transmission peaks curve of frequency doubled light
Fig. 4 is by the use of nondegenerate two mirror optics cavity as compensated cavity, adjusts pump beam and four mirror optical parameter chamber patterns
Coupling, and the schematic device that flashlight, pump light produce
In figure：1- optical parameter chamber, 2- flashlight, 3- pump light, 4- first lens group, the guide-lighting microscope group of 5- first, 6- is non-
Linear crystal, the frequency doubled light of 7- flashlight, 8- beam splitting dichroic mirror, 9- second lens group, the guide-lighting microscope group of 10- second, 11- nondegenerate
Optics cavity, the guide-lighting microscope group of 12- the 3rd, 13- the 3rd lens group, 14- first piezoelectric ceramics, 15- second piezoelectric ceramics, 16- first
Detector, 17- second detector, 18- first refrative mirror, 19- second refrative mirror, 20- the 3rd detector, 21- laser instrument, 22-
Optical beam-splitter, 23- frequency doubling cavity.
Specific embodiment
With reference to the accompanying drawings and examples, further description is made to the specific embodiment of the present invention.Following reality
Apply example to be used for the present invention is described, but be not limited to the scope of the present invention.
Embodiment 1., by the use of nondegenerate three mirror optics cavity as compensated cavity, adjusts pump beam and two mirror optical parameter chamber moulds
Formula is mated, and the device that flashlight, pump light produce, as shown in Figure 2.
The light beam of laser instrument 21 output becomes two-beam, a branch of letter as optical parameter chamber 1 after optical beam-splitter 22
Number light 2, another bundle injection frequency doubling cavity 23, obtain two frequencys multiplication outputs, as the pump light 3 in optical parameter chamber 1.Laser instrument 21 defeated
Going out wavelength is 1064nm, and the wavelength of two frequencys multiplication is 532nm.The step of regulation pump light 3 and optical parameter chamber 1 pattern match is such as
Under：First, the first lens group 4 and the first guide-lighting microscope group 5, the first lens are added in flashlight 2 light path before optical parameter chamber 1
Group 4 is used for adjusting waist spot positions and dimensions in optical parameter chamber 1 for the flashlight 2, and the lens combination choosing different focal will be believed
The parameter transformation of number light 2 is identical with the eigen mode in optical parameter chamber 1.First guide-lighting microscope group 5 is used for adjusting the propagation of flashlight 2
Direction is overlapped with the eigen mode in optical parameter chamber 1.The chamber scanning optical parameter chamber 1 by the first piezoelectric ceramics 14 is long, by the 3rd
Detector 20 can be observed the transmission peaks curve that optical parameter chamber 1 exports laser.In a free spectral range, work as transmission peaks
Main peak reach highest and no secondary peak occur or secondary peak only account for total peak energy amount less than 1% when, now achieve flashlight
Bundle 2 and the pattern match in optical parameter chamber 1.Optical parameter chamber 1 is made up of two concave mirrors and one piece of PPKTP crystal 6, as non-
Linear crystal.The radius of curvature of two concave mirrors is 50mm, PPKTP crystal 6 a size of 1*2*10mm, optical parameter chamber 1
The a length of 102.8mm in chamber, corresponding intrinsic mode radius is 34 μm, positioned at the centre in optical parameter chamber 1.First lens group 4 includes Jiao
Each a piece of away from the lens for -150mm and 200mm.First guide-lighting microscope group 5 level crossing to flashlight 2 high anti-(45 degree) by two panels
Composition, adjusting the first guide-lighting microscope group 5 makes flashlight 2 and optical parameter chamber 1 realize best pattern match, and matching efficiency is more than
99%.Then, with PDH frequency-stabilizing method, the chamber length in optical parameter chamber 1 is locked onto on the formant of flashlight 2, now Optical Parametric
Amount chamber has frequency doubled light 7 to export, and the wavelength of frequency doubled light 7 is equal with the wavelength of pump light 3.Again, behind optical parameter chamber 1, addition is double
Frequency doubled light 7 is separated by color beam splitter 8 with residual signal light 2.Second lens group the 9, second guide-lighting mirror is added in frequency doubled light light path
Group 10 and nondegenerate optics cavity 11, the second lens group 9 be used for adjusting waist spot position in nondegenerate optics cavity 11 for the frequency doubled light 7 and
Size, the parameter transformation of frequency doubled light 7 is identical with the eigen mode of nondegenerate optics cavity 11 by the lens combination choosing different focal.
The direction of propagation that second guide-lighting microscope group 10 is used for adjusting frequency doubled light 7 is overlapped with the eigen mode of nondegenerate optics cavity 11.Nondegenerate light
Learn the compensated cavity that chamber 11 is used as pattern match, the three mirror annular chambers that it is made up of, concave surface two level crossings and a concave mirror
The radius of curvature of mirror is 1m, a length of 450mm in chamber of nondegenerate optics cavity 11, and in chamber, waist spot radius is 426 μm.Second lens group 9
Including focal length be -100mm and the lens of 200mm are each a piece of.Second guide-lighting microscope group 10 is high anti-to the frequency doubled light 7 of flashlight by two panels
The level crossing composition of (45 degree).Using the first refrative mirror 18, transmitted light is imported the first detector 16, adjust the second guide-lighting microscope group
10, the chamber scanning nondegenerate optics cavity 11 by the second piezoelectric ceramics 15 is long, makes the pattern of frequency doubled light 7 and nondegenerate optics cavity 11
Matching efficiency highest, Fig. 3 is the pattern match result of frequency doubled light 7 and nondegenerate optics cavity 11, and pattern match efficiency is more than 99%.
Finally, with the 3rd guide-lighting microscope group 12, pump light 3 is imported nondegenerate optics cavity 11 from other direction, in the light path of pump light 3
Transmitted light is imported the second detector 17 using the second refrative mirror 19 by middle insertion the 3rd lens group 13, adjusts the 3rd lens group 13
Parameter and adjust the 3rd guide-lighting microscope group 12, the chamber scanning nondegenerate optics cavity 11 by the second piezoelectric ceramics 15 is long, makes pumping
Light 3 and the pattern match efficiency highest of nondegenerate optics cavity 11, that is, obtain the pattern match of pump light 3 and optical parameter chamber 1.The
It is each a piece of that three lens group 13 include the lens that focal length is 150mm and -100mm.
Embodiment 2., by the use of nondegenerate two mirror optics cavity as compensated cavity, adjusts pump beam and four mirror optical parameter chamber moulds
Formula is mated, and the device that flashlight, pump light produce, as shown in Figure 4.
The light beam of laser instrument 21 output becomes two-beam, a branch of letter as optical parameter chamber 1 after optical beam-splitter 22
Number light 2, another bundle injection frequency doubling cavity 23, obtain two frequencys multiplication outputs, as the pump light 3 in optical parameter chamber 1.Laser instrument 21 defeated
Going out wavelength is 1064nm, and the wavelength of two frequencys multiplication is 532nm.The step of regulation pump light 3 and optical parameter chamber 1 pattern match is such as
Under：First, the first lens group 4 and the first guide-lighting microscope group 5, the first lens are added in flashlight 2 light path before optical parameter chamber 1
Group 4 is used for adjusting waist spot positions and dimensions in optical parameter chamber 1 for the flashlight 2, and the lens combination choosing different focal will be believed
The parameter transformation of number light 2 is identical with the eigen mode in optical parameter chamber 1.First guide-lighting microscope group 5 is used for adjusting the propagation of flashlight 2
Direction is overlapped with the eigen mode in optical parameter chamber 1.The chamber scanning optical parameter chamber 1 by the first piezoelectric ceramics 14 is long, by the 3rd
Detector 20 can be observed the transmission peaks curve that optical parameter chamber 1 exports laser.In a free spectral range, work as transmission peaks
Main peak reach highest and no secondary peak occur or secondary peak only account for total peak energy amount less than 1% when, now achieve flashlight
Bundle 2 and the pattern match in optical parameter chamber 1.Optical parameter chamber 1 is by two concave mirrors, two level crossings and one piece of LiNbO3Crystal
6 compositions, as nonlinear crystal.The radius of curvature of two concave mirrors is 100mm, and total chamber in optical parameter chamber 1 is a length of
622.8mm, the distance between two concave mirrors are 108mm, and corresponding intrinsic mode radius is 25 μm, LiNbO3Crystal 6 a size of 3*
3*12mm, the centre of two concave mirrors in optical parameter chamber 1.It is -150mm and 150mm that first lens group 4 includes focal length
Lens are each a piece of.First guide-lighting microscope group 5 is made up of to the level crossing of flashlight 2 high anti-(45 degree) two panels, adjusts the first guide-lighting mirror
Group 5 makes flashlight 2 and optical parameter chamber 1 realize best pattern match, and matching efficiency is more than 99%.Then, use PDH frequency-stabilizing method
The chamber length in optical parameter chamber 1 is locked onto on the formant of flashlight 2, now optical parameter chamber has frequency doubled light 7 to export, frequency doubled light
7 wavelength is equal with the wavelength of pump light 3.Again, add behind optical parameter chamber 1 beam splitting dichroic mirror 8 by frequency doubled light 7 with remaining
Flashlight 2 is separately.The guide-lighting microscope group 10 of the second lens group 9, second and nondegenerate optics cavity 11 is added in frequency doubled light light path, second
Lens group 9 is used for adjusting waist spot positions and dimensions in nondegenerate optics cavity 11 for the frequency doubled light 7, chooses the lens group of different focal
It is identical with the eigen mode of nondegenerate optics cavity 11 for closing the parameter transformation of frequency doubled light 7.Second guide-lighting microscope group 10 is used for adjusting again
The direction of propagation of frequency light 7 is overlapped with the eigen mode of nondegenerate optics cavity 11.Nondegenerate optics cavity 11 is used as the auxiliary of pattern match
Chamber, the two mirror nondegenerate optics cavity that it is made up of two concave mirrors, the radius of curvature of two concave mirrors is 50m, nondegenerate light
Learn a length of 103mm in chamber in chamber 11.Second lens group 9 includes that focal length is -200mm and the lens of 200mm are each a piece of.Second guide-lighting mirror
Group 10 is made up of to the level crossing of flashlight 2 high anti-(45 degree) two panels.Using the first refrative mirror 18, transmitted light is imported the first spy
Survey device 16, adjust the second guide-lighting microscope group 10, the chamber scanning nondegenerate optics cavity 11 by the second piezoelectric ceramics 15 is long, makes frequency doubled light
7 with the pattern match efficiency highest of nondegenerate optics cavity 11, more than 99%.Finally, with the 3rd lens group 13 by pump light 3 from another
One direction imports in nondegenerate optics cavity 11, inserts the 3rd lens group 13, using the second refrative mirror 19 in the light path of pump light 3
Transmitted light is imported the second detector 17, adjusts the parameter of the 3rd lens group 13 and adjust the 3rd guide-lighting microscope group 12, by second
The chamber that piezoelectric ceramics 15 scans nondegenerate optics cavity 11 is long, makes the pattern match efficiency of pump light 3 and nondegenerate optics cavity 11
Height, more than 99%.Obtain the pattern match of pump light 3 and optical parameter chamber 1.It is 200mm that 3rd lens group 13 includes focal length
Each with the lens of -100mm a piece of.
Above-described embodiment has been merely given as simplest utilizing three mirrors and two mirror nondegenerate optics cavity to adjust pump light and two
Mirror and the method in four mirror list Resonant parameter chambeies, are not described all of possibility.In fact, can also be non-with other chambeies shape
Degeneracy optics cavity adjusts single Resonant parameter chamber of other chambeies shape, the scope that as present invention is covered.
The above is only the preferred embodiment of the present invention it is noted that coming for those skilled in the art
Say, on the premise of without departing from the technology of the present invention principle, some improvement can also be made and replace, these improve and replace also should
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of regulation pump light and the method for single Resonant parameter chamber pattern match are it is characterised in that comprise the following steps：
1), the first lens group (4) with being placed in optical parameter chamber (1) front signal light (2) light path converts flashlight (2) in light
Learn the mode sizes in parameter chamber (1), so that flashlight (2) and the eigen mode implementation pattern of optical parameter chamber (1) is mated；
2), the chamber of locking optical parameter chamber (1) is long, so that the chamber length in optical parameter chamber (1) is met in the frequency of flashlight (2) humorous
Shake enhancing condition, obtain frequency doubled light (7) output of flashlight (2)；
3), the frequency doubled light (7) obtaining after optical parameter chamber (1) locking is imported the nondegenerate optics cavity (11) of an auxiliary, use
The second lens group (9) being placed between optical parameter chamber (1) and nondegenerate optics cavity (11) converts frequency doubled light in nondegenerate light
Learn the mode sizes in chamber (11), so that frequency doubled light (7) and the eigen mode implementation pattern of nondegenerate optics cavity (11) is mated；
4), with being placed on the 3rd lens group (13) conversion pump light (3) of nondegenerate optics cavity (11) another side in nondegenerate light
Learn the mode sizes in chamber (11), so that pump light (3) and the eigen mode implementation pattern of nondegenerate optics cavity (11) is mated；
5), pump light (3) is equal with frequency doubled light (7) wavelength, according to reversibility of optical path principle, pump light (3) and Optical Parametric
The eigen mode of amount chamber (1) achieves pattern match.
2. a kind of method adjusting pump light and single Resonant parameter chamber pattern match as claimed in claim 1, its feature
It is, described optical parameter chamber (1) is two mirror chambeies, three mirror cavity or many mirrors chamber.
3. a kind of method adjusting pump light and single Resonant parameter chamber pattern match as claimed in claim 1, its feature
It is, in described optical parameter chamber (1), comprise optically nonlinear crystal (6).
4. a kind of method adjusting pump light and single Resonant parameter chamber pattern match as claimed in claim 1, its feature
Be, in step 1), step 3) and step 4) implementation pattern coupling when the lens group that adopted be one or more lens
Combination.
5. a kind of method adjusting pump light and single Resonant parameter chamber pattern match as claimed in claim 1, its feature
It is, described nondegenerate optics cavity (11) is two mirror chambeies, three mirror cavity or many mirrors chamber.
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| CN106679943B (en) * | 2017-01-10 | 2019-01-29 | 山西大学 | A method of measurement optics parametric oscillator (opo) escape efficiency |
| CN113048969B (en) * | 2021-01-08 | 2022-10-28 | 中国船舶重工集团公司第七0七研究所 | Small entanglement source for polarization-entangled photon pair output of fiber-optic gyroscope and adjusting method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134622A (en) * | 1990-12-20 | 1992-07-28 | Deacon Research | Diode-pumped optical parametric oscillator |
| CN1753260A (en) * | 2005-08-12 | 2006-03-29 | 天津大学 | Multi wave length simultaneously output full solid state tunnable laser light source |
| CN103091933A (en) * | 2013-01-30 | 2013-05-08 | 山西大学 | Generating device for continuous variable polychrome entangled optical field |
| CN103513490A (en) * | 2012-06-21 | 2014-01-15 | 中国科学院大连化学物理研究所 | Single-longitudinal-mode optical parametric oscillation amplifier and automatic locking method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4235704B2 (en) * | 2003-03-24 | 2009-03-11 | 独立行政法人情報通信研究機構 | Quantum interference measurement system |
-
2014
- 2014-09-05 CN CN201410452706.1A patent/CN104167659B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134622A (en) * | 1990-12-20 | 1992-07-28 | Deacon Research | Diode-pumped optical parametric oscillator |
| CN1753260A (en) * | 2005-08-12 | 2006-03-29 | 天津大学 | Multi wave length simultaneously output full solid state tunnable laser light source |
| CN103513490A (en) * | 2012-06-21 | 2014-01-15 | 中国科学院大连化学物理研究所 | Single-longitudinal-mode optical parametric oscillation amplifier and automatic locking method thereof |
| CN103091933A (en) * | 2013-01-30 | 2013-05-08 | 山西大学 | Generating device for continuous variable polychrome entangled optical field |
Non-Patent Citations (1)
| Title |
|---|
| 利用自制的单频激光器获得近通讯波段正交振幅压缩态光场;邬志强等;《量子光学学报》;20130225;第19卷(第1期);第1-5页 * |
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