CN104950546B - A kind of method that the output of medium-wave infrared laser is produced using parameter transform technology - Google Patents
A kind of method that the output of medium-wave infrared laser is produced using parameter transform technology Download PDFInfo
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- CN104950546B CN104950546B CN201510399655.5A CN201510399655A CN104950546B CN 104950546 B CN104950546 B CN 104950546B CN 201510399655 A CN201510399655 A CN 201510399655A CN 104950546 B CN104950546 B CN 104950546B
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- 238000005516 engineering process Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000013307 optical fiber Substances 0.000 claims abstract description 56
- 239000013078 crystal Substances 0.000 claims abstract description 35
- 230000003287 optical effect Effects 0.000 claims abstract description 32
- 230000003321 amplification Effects 0.000 claims abstract description 12
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 12
- 230000003595 spectral effect Effects 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 238000001228 spectrum Methods 0.000 claims description 18
- 230000010287 polarization Effects 0.000 claims description 5
- 239000004038 photonic crystal Substances 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 18
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 238000005086 pumping Methods 0.000 abstract description 6
- 241000931526 Acer campestre Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 108010023321 Factor VII Proteins 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005247 gettering Methods 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000382 optic material Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- RIUWBIIVUYSTCN-UHFFFAOYSA-N trilithium borate Chemical class [Li+].[Li+].[Li+].[O-]B([O-])[O-] RIUWBIIVUYSTCN-UHFFFAOYSA-N 0.000 description 1
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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
- G02F1/3553—Crystals having the formula MTiOYO4, where M=K, Rb, TI, NH4 or Cs and Y=P or As, e.g. KTP
-
- 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
- G02F1/365—Non-linear optics in an optical waveguide structure
-
- 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
- G02F1/39—Non-linear optics for parametric generation or amplification of light, infrared or ultraviolet waves
- G02F1/395—Non-linear optics for parametric generation or amplification of light, infrared or ultraviolet waves in optical waveguides
-
- 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
- G02F1/39—Non-linear optics for parametric generation or amplification of light, infrared or ultraviolet waves
- G02F1/392—Parametric amplification
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Lasers (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The invention discloses a kind of method that the output of medium-wave infrared laser is produced using parameter transform technology.It is by the use of the optical fiber laser of a pulse as pumping source, and a non-linear laser crystal is as optical frequency conversion device.First by the spectral evolution of pulse optical fiber, further power amplification is done in rear stage fiber amplifier using the laser after spectral evolution as seed laser again, one while the output of the optical-fiber laser of the high power pump laser comprising specific wavelength and the broadband spectral laser of mid power are obtained from same root optical fiber, focusing on non-linear laser crystal via optical lens produces efficient medium-wave infrared laser output.Technology of the present invention has the characteristics of laser-conversion efficiency is high, laser output wavelength is adjustable, system architecture is compact, dependable performance, environmental stability are good, suitable high-power output, is with a wide range of applications.
Description
Technical field
The present invention relates to a kind of new laser generation method, more particularly to a kind of laser generation side of medium-wave infrared wave band
Method.
Background technology
Optical maser wavelength has in the medium-wave infrared laser of 2-5 micron wavebands in biomedical, environmental monitoring and national defence
There is important application value.3.6 microns and 3.8 microns are good atmospheric window wave bands, and the laser of the wave band has in an atmosphere
There is good transmissivity, be the good wave band of laser signal transmission, be adapted to traditional space laser transmission；The laser of 2.9 micron wave lengths exists
There is strong absorption in biological tissue, therefore laser action depth is small, easily controllable working position, hemostatic capability also compares
By force, it is a kind of laser scalpel of high-quality；The Intrinsic Gettering of a large amount of gas molecules in the spectral band of wave band 3-5 microns be present
Peak, therefore with the characteristics of absorption intensity is big, spectral line is narrow, be very suitable for doing micro or trace gas composition detection.In addition,
The laser of 3-5 micron wavebands overlaps with the window wave band of infrared guidance guided missile, can be used for interior interference, therefore is photoelectronic warfare
Effective laser.At present, producing the technological means of medium-wave infrared has many kinds, available Solid Laser Elements, including quantum
The semiconductor laser of cascade, the optical parametric oscillator based on parameter transform technology or photoparametric amplifier and directly use
Gain medium produces the solid state laser and optical fiber laser of laser generation.
The semiconductor laser of quanta cascade has the characteristics of compact-sized, but is not suitable as swashing for high-peak power
Light output.The medium-wave infrared laser of laser generation is directly produced using gain medium, normally due to quantum efficiency is asked
Topic, operating efficiency is relatively low, and typically requires low-temperature working, is not particularly suitable for high power laser light development.Therefore, in order to obtain Gao Gong
The medium-wave infrared laser output of rate, typically uses parameter transform technology.
Parameter transform technology is a kind of more ripe optical frequency switch technology, and it passes through three wave mixing or four-wave mixing principle
The pumping laser of shorter wavelength is converted to the laser of longer wavelength, the technical scheme of parameter transform includes lower turn of Spontaneous Parametric
Change, parameter amplifies and parametric oscillation.Switch technology is directly incident using the pumping laser of a branch of high-peak power under Spontaneous Parametric
Into non-linear laser crystal, caused parameter laser, simple in construction, but because threshold value is very high, to its peak work of pumping laser
Rate requires very high, and total conversion efficiency is relatively low, while switched laser output spectral coverage is generally large under the yield obtained, many times
Application demand can not be met；Parameter amplifying technique typically by the use of the pulse laser that a branch of wavelength is shorter, intensity is larger as pump light,
Incided simultaneously in Laser-Nonlinear crystal as flashlight, two-beam using a branch of longer wavelengths of laser simultaneously, it is poor to produce
Frequently, now flashlight will be amplified, while one wavelength of generation is longer, photon energy is equal to pump light photon energy and flashlight
The unused light of the difference of photon energy.Compared with switch technology under Spontaneous Parametric, parameter amplifying technique have threshold value it is relatively low, conversion effect
The characteristics of rate is higher, it is a kind of more practical optical frequency switch technology, but its shortcoming is the requirement to Laser-Nonlinear crystal
Higher, optical frequency needs the phase matching relationship during strict guarantee parameter transform when changing, therefore for the crystal of specific structure, must
It must fine-tune and strictly control its operating temperature to make to can guarantee that phase matching relationship is met, and higher difference is obtained with this
Frequency conversion efficiency.It is different from above two parameter transform technology, mid infrared laser by means of resonator help so that letter
Number light or unused light produce laser generation in resonator, it is possible to achieve higher optical frequency conversion efficiency, and to the phase of crystal
Matching relationship is not strict with very much.Now the change of the operating temperature of Laser-Nonlinear crystal typically only causes optical parameter
The change of oscillator Output of laser wavelength, it can be considered that its phase matching relationship is in harmony certainly to a certain extent.Total
For, thermal lensing effect etc. influence the stable factor of resonator it is unconspicuous under the conditions of, optical parametric oscillator can obtain compared with
For preferable conversion efficiency.
But with the increase of laser power, especially when the laser of each wavelength in resonator is in non-linear laser crystal
When having a certain amount of absorption in body, laser crystal will produce serious thermal lensing effect, and cause chamber bad stability, intracavitary damage
Consumption increase, the optical frequency conversion efficiency of total optical parametric oscillator are greatly reduced.To solve this problem, worked in high power laser light
Under the conditions of, it is necessary to chamber stability problem when using resonator thermal-lensing compensation measure to solve high-power operation, cause laser
Device structure becomes complicated, and optical frequency conversion efficiency reduces, and high-power parameter laser output is difficult to.In addition, optical parametric oscillation
In device because comprising resonator, whole laser there is a series of problems caused by resonator off resonance, due to environmental factor
Change, the long-term working stability of laser is relatively difficult to ensure card.
The content of the invention
The purpose of the present invention is for the relevant issues in the actual use of current optical parameter switch technology, makes full use of beche-de-mer without spike
The characteristics of measuring amplifying technique, and thoroughly solve its conventional parameter amplifying technique to phase matching requirement using new technique method
The problem of very strict, enabling obtain a kind of laser-conversion efficiency is high, laser output wavelength is adjustable, system architecture is compact,
Dependable performance, environmental stability are good, are adapted to the new pattern laser frequency conversion system of high-power output, can be widely applied for all kinds of medium waves
During infrared laser is developed.
The inventive method is used as pumping source, a non-linear laser by the use of the pulse optical fiber system of one group of special tectonic
Crystal is as optical frequency conversion device.
The novel pulse fiber ring laser system constructed includes a pulse optical fiber, one section of spectrum widening is used up
A fine and optical fiber laser amplifier, can realize three functions.First, it can produce the pulse laser of specific wavelength and shake
Swing, such as Yb pulse optical fibers, it can produce the laser generation of any wavelength between 1.01 microns to 1.1 microns.At this
A part, can be vibrated by direct optical-fiber laser or optical-fiber laser amplifies so that pulse laser output has enough
Mean power and peak power.Secondly, the spectrum of rear class is entered after the above-mentioned optical-fiber laser output of the single wavelength of higher-wattage
In broadening optical fiber, by laser spectrum by the single wavelength laser laser that significantly broadening exports for wide spectrum, its maximum broadening light
Spectral limit can reach 1010nm to 2200nm.Now, the laser by spectrum widening optical fiber output will not have comprising certain proportion
The wide range laser that original the specific wavelength laser and certain proportion broadening for having broadening are crossed.Third, the optical fiber after spectrum widening
Laser exports, and last power amplification is done via an optical fiber laser amplifier again, now without the original certain wave of broadening
Long laser puts relatively small power is obtained laser power after the amplification for obtaining the overwhelming majority, the wide range laser of broadening
Greatly.After optical-fiber laser amplification by this one-level, the power overwhelming majority of the laser of optical fiber output is primary wave long wave before broadening
Duan Jiguang power, and the broadband spectral laser of Partial Power is included simultaneously.When the dispersion of fiber optic materials is for laser pulse width
When influenceing still unobvious, the pulse characteristic of this two parts laser will be essentially identical.
Possess the optical fiber laser of above-mentioned three kinds of functions, one will be exported from same root optical fiber while includes specific wavelength
High power pump laser and mid power broadband spectral laser.The laser is focused on into non-linear laser via optical lens
Crystal, optical parametric amplification can be utilized to produce efficient medium-wave infrared laser output.Now, due to broadband spectral laser
In the presence of, parameter laser amplification is carried out by not strict phase matching requirement using optical parametric amplification, therefore to non-linear
Laser crystal operating temperature is not also strict with, and the situation of its phase matched is similar to optical parametric oscillator, will be it is a kind of from
The relation being in harmony.The laser of which wave band can be amplified by parameter, will depend entirely on phase matched during nonlinear crystal work
Relation, the optical maser wavelength of parameter transform output is by completely by phase when wavelength and the non-linear laser crystal work of pumping laser
Matching relationship determines.
Above-mentioned spectrum widening optical fiber can be the photonic crystal fiber of micro-structural or the optical fiber of conventional structure.
Its fiber lengths can be as needed spectrum widening degree choose.
Above-mentioned non-linear laser crystal can be the block laser crystal using birefringent phase matching, such as three lithium borates
Crystal or farmland invert to the artificial domain structure non-linear laser crystal inverted by specific rule, such as periodicity domain structure
Magnesium-doped lithium niobate crystal.
The present invention is mainly solving to be difficult to ensure efficient parameter transform simultaneously in current parameter transform technology and obtain height
The technical barrier of power parameter laser output, and with laser-conversion efficiency is high, laser output wavelength is adjustable, system architecture is tight
Gather, dependable performance, environmental stability are good, be adapted to high-power output the characteristics of, a kind of new efficient laser frequency can be obtained
System, it can be widely applied in all kinds of medium-wave infrared lasers developments.In the present invention, the change of laser output wavelength can be through
It is achieved by the change of Laser-Nonlinear crystal property, such as realizes wavelength switching, broad band laser output function, all no longer need
To change the characteristic of flashlight simultaneously.Because the pump light of high-peak power is with wide range laser while from an optical fiber output, and have
There is good consistency pulse, extraordinary spatial model matching and burst length can be obtained in non-linear laser crystal
Match somebody with somebody, therefore high optical frequency conversion efficiency can be obtained.Since without the constraint of laserresonator, whole optical frequency switched laser
The complexity of head is greatly lowered, and structure becomes closely, and the off resonance problem of resonator will not exist, the length of Optical Maser System
Phase stability will become very good.Very strong thermal lens is generated in Laser-Nonlinear crystal under the conditions of high-power operation
Effect, but because pump light matches in pattern with flashlight all the time, therefore chamber common in laser oscillation cavity is not still had
Mould mismatch problems.For these reasons, according to technology of the present invention, can be remained under the conditions of different laser pump (ing)s
High optical frequency conversion efficiency, and finally obtain the medium-wave infrared laser output of ultra high power.
Brief description of the drawings
Fig. 1 is a kind of principle schematic for the method that the output of medium-wave infrared laser is produced using parameter transform technology.
Embodiment
The embodiment that the invention will now be described in detail with reference to the accompanying drawings.
As shown in figure 1, a pulse optical fiber 1, the laser of the single wavelength of output high-power；Pulsed optical fibre laser
The laser output of device 1 enters directly into the spectrum widening optical fiber 2 of rear end via connection optical fiber, carries out spectrum widening；Spectrum widening
Laser afterwards is exported from optical fiber 2, and the optical fiber laser amplifier 3 of rear end is entered via connection optical fiber, carries out laser power amplification；
Laser after power amplification is coupled to non-linear laser crystal 5, realizes that parameter amplifies via lens 4, and produce it is high-power in
Ripple infrared laser exports.
Described pulse optical fiber 1 is that there is one kind high peak power, optical maser wavelength to be arrived in 1010nm
Pulse optical fiber between 1120nm.
Described spectrum widening optical fiber 2 is a kind of micro-structural photonic crystal fiber or common single-mode quartz optical fibers.
Described optical fiber laser amplifier 3 is a kind of conventional optical fiber laser amplifier, can be that the optical fiber of linear polarization swashs
The optical fiber laser amplifier of the random polarization of image intensifer or polarization insensitive.
Described lens 4 are ordinary optical lens.
Described non-linear laser crystal 5 can be the single block laser crystal of birefringent phase matching, such as three boric acid
The laser crystal of crystalline lithium or periodically poled, such as the magnesium-doped lithium niobate crystal of periodically poled.
The present invention is mainly solving to be difficult to ensure efficient parameter transform simultaneously in current parameter transform technology and obtain height
The technical barrier of power parameter laser output, and with laser-conversion efficiency is high, laser output wavelength is adjustable, system architecture is tight
Gather, dependable performance, environmental stability are good, be adapted to high-power output the characteristics of, a kind of new efficient laser frequency can be obtained
System, it can be widely applied in all kinds of medium-wave infrared lasers developments.In the present invention, the change of laser output wavelength can be through
It is achieved by the change of Laser-Nonlinear crystal property, such as realizes that wavelength switches, the function such as broad band laser output, is all no longer needed
To change the characteristic of flashlight simultaneously.Because the pump light of high-peak power is with wide range laser while from an optical fiber output, and have
There is good consistency pulse, extraordinary spatial model matching and burst length can be obtained in non-linear laser crystal
Match somebody with somebody, therefore high optical frequency conversion efficiency can be obtained.Since without the constraint of laserresonator, whole optical frequency switched laser
The complexity of head is greatly lowered, and structure becomes closely, and the off resonance problem of resonator will not exist, the length of Optical Maser System
Phase stability will become very good.Very strong thermal lens is generated in Laser-Nonlinear crystal under the conditions of high-power operation
Effect, but because pump light matches in pattern with flashlight all the time, therefore chamber common in laser oscillation cavity is not still had
Mould mismatch problems.For these reasons, according to technology of the present invention, can be remained under the conditions of different laser pump (ing)s
High optical frequency conversion efficiency, and finally obtain the medium-wave infrared laser output of ultra high power.
Claims (6)
- A kind of 1. method that the output of medium-wave infrared laser is produced using parameter transform technology, it is characterised in that swash in pulse fiber Between light device (1) and optical fiber laser amplifier (3), the spectrum widening optical fiber (2) of spectrum widening is added；The pulse fiber swashs Light device (1) output peak power is more than 10 watts, the laser of single wavelength of the mean power more than 0.1W；Pulse optical fiber (1) laser output enters directly into the spectrum widening optical fiber (2) of rear end via connection optical fiber, carries out spectrum widening；Spectrum exhibition Laser after width enters the optical fiber laser amplifier (3) of rear end via connection optical fiber, carries out laser power amplification；Power amplification Laser afterwards is coupled to non-linear laser crystal (5) via lens (4), realizes that parameter amplifies using optical parametric amplification, production Raw medium-wave infrared laser output.
- 2. a kind of method that the output of medium-wave infrared laser is produced using parameter transform technology according to claim 1, it is special Sign is, the laser that the optical fiber laser amplifier (3) exports from an optical fiber while includes and pulse optical fiber (1) The peak power of the laser phase co-wavelength sent is more than 50 watts, high power pump laser and peak power of the mean power more than 5W More than 0.5 watt, the broadband spectral laser of mid power of the mean power more than 0.05W.
- 3. a kind of method that the output of medium-wave infrared laser is produced using parameter transform technology according to claim 1, it is special Sign is that the spectrum widening optical fiber (2) is a kind of photonic crystal fiber of micro-structural or common single-mode quartz optical fibers.
- 4. a kind of method that the output of medium-wave infrared laser is produced using parameter transform technology according to claim 1, it is special Sign is that the non-linear laser crystal (5) is that a kind of non-linear laser crystal using angular phase matching is either a kind of Utilize the non-linear laser crystal of the periodically poled of quasi-phase matched.
- 5. a kind of method that the output of medium-wave infrared laser is produced using parameter transform technology according to claim 1, it is special Sign is that the pulse optical fiber (1) is that there is one kind peak power to be more than 0.1W, laser more than 10 watts, mean power The pulse optical fiber that wavelength is between 1010nm to 1120nm.
- 6. a kind of method that the output of medium-wave infrared laser is produced using parameter transform technology according to claim 1, it is special Sign is, described optical fiber laser amplifier (3) be linear polarization optical fiber laser amplifier or polarization insensitive it is random partially The optical fiber laser amplifier to shake.
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| CN107045248B (en) * | 2017-06-14 | 2023-05-23 | 上海朗研光电科技有限公司 | Nonlinear optical fiber amplification broadband four-wave mixing generation device |
| CN109149344A (en) * | 2018-08-14 | 2019-01-04 | 杭州镭克普光电技术有限公司 | A kind of system of impulsive synchronization that realizing the output of ultrashort pulse medium-wave infrared laser using laser difference frequency |
| CN109167244A (en) * | 2018-08-14 | 2019-01-08 | 杭州镭克普光电技术有限公司 | A kind of system using chirp domain inversion structures nonlinear crystal improving laser difference frequency medium-wave infrared laser output power |
| CN109149345A (en) * | 2018-08-14 | 2019-01-04 | 杭州镭克普光电技术有限公司 | A kind of system that the medium-wave infrared laser using laser difference frequency technology generation wavelength not less than 3.8 microns exports |
| CN110518445B (en) * | 2019-09-03 | 2021-01-29 | 电子科技大学 | Broadband tunable optical parameter chirped pulse amplification system based on soliton self-frequency shift |
| CN112910560B (en) * | 2021-01-11 | 2021-12-31 | 浙江大学 | Laser communication method and communication system combining OPA and optical phased array |
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|---|---|---|---|---|
| CN101055968A (en) * | 2007-05-29 | 2007-10-17 | 中国科学院上海光学精密机械研究所 | Optical parameter chirped pulse amplification laser system |
| CN103151687A (en) * | 2013-03-10 | 2013-06-12 | 中国人民解放军国防科学技术大学 | Method for directly generating intermediate infrared super-continuum spectrum in amplifier |
| CN103825164A (en) * | 2013-12-03 | 2014-05-28 | 上海交通大学 | High average power full optical fiber intermediate infrared supercontinuum light source |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7298545B2 (en) * | 2005-12-23 | 2007-11-20 | Academia Sinica | High repetition rate visible optical parametric oscillator |
| US8384990B2 (en) * | 2009-08-12 | 2013-02-26 | The Board Of Trustees Of The Leland Stanford Junior University | Infrared frequency comb methods, arrangements and applications |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101055968A (en) * | 2007-05-29 | 2007-10-17 | 中国科学院上海光学精密机械研究所 | Optical parameter chirped pulse amplification laser system |
| CN103151687A (en) * | 2013-03-10 | 2013-06-12 | 中国人民解放军国防科学技术大学 | Method for directly generating intermediate infrared super-continuum spectrum in amplifier |
| CN103825164A (en) * | 2013-12-03 | 2014-05-28 | 上海交通大学 | High average power full optical fiber intermediate infrared supercontinuum light source |
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