CN110120622A - A kind of 10 femtosecond Ti:Sapphire oscillator of the Asia that laser diode directly pumps - Google Patents
A kind of 10 femtosecond Ti:Sapphire oscillator of the Asia that laser diode directly pumps Download PDFInfo
- Publication number
- CN110120622A CN110120622A CN201910419821.1A CN201910419821A CN110120622A CN 110120622 A CN110120622 A CN 110120622A CN 201910419821 A CN201910419821 A CN 201910419821A CN 110120622 A CN110120622 A CN 110120622A
- Authority
- CN
- China
- Prior art keywords
- laser
- mirror
- laser diode
- femtosecond
- asia
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0057—Temporal shaping, e.g. pulse compression, frequency chirping
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1106—Mode locking
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
The invention discloses the 10 femtosecond Ti:Sapphire oscillators of Asia that a kind of laser diode directly pumps, including laser diode, non-spherical lens, Plano concave cylindr lens, plano-convex cylindrical lens, plano-convex focus lamp, the first concave mirror, titanium gem crystal, the second concave mirror, the first fused quartz prism, first laser high reflective mirror, the second fused quartz prism, second laser high reflective mirror, output coupling mirror, the first chirped mirror, the second chirped mirror, the first wedge, the second wedge.The invention has the advantages that replacing pumping source --- all solid state frequency double laser of traditional Ti:Sapphire laser femtosecond oscillator using laser diode, and use chirped mirror and prism to the dispersion compensation schemes of collocation, to realize that sub-10 femtosecond exports.Therefore, the 10 femtosecond Ti:Sapphire oscillator of Asia that laser diode provided by the invention directly pumps has the advantages such as compact-sized, easy maintenance, stable, good beam quality, cheap.
Description
Technical field
The present invention relates to technical field of ultrafast laser, in particular to 10 femto second titanium of Asia that a kind of laser diode directly pumps
Sapphire oscillators.
Background technique
Since laser is born, people pursue always and it is desirable that obtain shorter pulse width.Rapid time differentiate at
For that may have benefited from ultrashort pulse width, as the movement that high speed is captured similar to high-speed camera, ultra-short pulse laser can
With will the ultrafast movement " fixing " as molecule or electronics certain in a flash, therefore Chemical Kinetics and height can be detected
The electro optic sampling of fast moving electron and other femtosecond dynamic processes.It can indirectly be detected point using ultra-short pulse laser
Sub- decomposition kinetics and more complicated chemical kinetic process.It can provide a completely new extreme object using ultra-intense laser
Manage bar part only can just be found at stellar internal part or black hole edge in nature.Pass through the substance knot under extreme physical condition
The research of structure movement and interaction facilitates the mankind and more deeply and systematically understands objective world rule.From nineteen ninety
Since the generation that ti sapphire crystal replaces dyestuff to be applied to ultrashort laser pulse, using kerr lens mode locking (KLM) skill
Many advantages, such as femtosecond titanium precious stone laser oscillator of art is simple with its structure, reliable performance, high output power, has attracted people
Extensive interest.Kerr lens mode locking technology does not need to add any modulation element intracavitary, only relies on titanium-doped sapphire gain
Stable self-locking mode fortune can be realized as saturable absorber in the Kerr effect of medium itself under cavity structure appropriate
Turn.Using kerr lens mode locking, titanium-doped sapphire femtosecond oscillator has been realized in the femtosecond of Few-cycle pulse width at present
Pulse output constantly refreshes the world record of ultrashort pulse in nearly 20 years time, and has opened up broader forward position and answered
With field, become one of the continuing challenge high-precision limit, the bright spot subject for leading basic science to develop.Although kerr lens mode locking
Titanium-doped sapphire femtosecond oscillator achieves brilliant achievement, but it there is also some intrinsic disadvantages, due to generally adopting
It uses all solid state frequency double laser as pumping source, causes ti sapphire laser volume big, it is expensive, it is complicated for operation, therefore
The application of titanium-doped sapphire femto-second laser is limited in some sense, is answered so that titanium-doped sapphire femto-second laser only limits to
In the laboratory of some large sizes, it cannot be widely applied.Based on this situation, laser diode (LD) is pumped complete
Solid-state femto-second laser comes into being, and has many advantages, such as low in cost using LD pumping, structure is simple, compact, is conducive to femtosecond
The extensive use of laser has highly important application in fields such as national defence, industry, medical treatment and scientific researches.The suction of Ti:Sapphire laser
It receives spectrum and just covers bluish-green optical band, therefore blue, green laser diode pumping Femtosecond Ti:sapphire laser has welcome one again
A new opportunity to develop, blue, green laser diode are expected to the reason for replacing all solid state frequency double laser to become ti sapphire laser
Think pumping source.Up to the present, people produce 13fs using single laser diode, and the mode locking of 145mW exports, still
Comprehensive output-index such as pulse width and mean power etc. are not up to the ti sapphire laser of all solid state frequency double laser pumping
Output-index, therefore LD pumping Ti:Sapphire laser, there are also very big development space, especially LD pumps the sub- 10fs output of Ti:Sapphire laser
Report is not seen yet.In conclusion existing technical problem is: the wavelength and Ti:Sapphire laser absorption peak of laser diode-pumped light
Farther out, absorption efficiency is relatively low for peak value (488nm), and pumps damage in the presence of apparent using when short wavelength LD pumping
Consumption, so that system effectiveness is relatively low；Secondly the beam quality of laser diode is poor, it is necessary to carry out necessary beam shaping；It wants
Obtain the pulsed laser output of Asia 10fs, it is also necessary to fine dispersion management.
Therefore, how a kind of Asia 10 at low cost, stability is good, good beam quality laser diode directly pumps is provided
Femtosecond Ti:Sapphire oscillator is those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The present invention the studies above status and there are aiming at the problem that, provide a kind of Asia 10 that laser diode directly pumps
Femtosecond Ti:Sapphire oscillator is related to the scheme of LD beam shaping and dispersion compensation, it is intended to be realized using a LD pumping Ti:Sapphire laser
Kerr lens mode locking output, and carry out fine color three outside resonant cavity to the laser of output and adjust.
The 10 femtosecond Ti:Sapphire oscillator of Asia that a kind of laser diode provided by the invention directly pumps, including according to laser
Laser diode that the direction of propagation is set gradually, non-spherical lens, Plano concave cylindr lens, plano-convex cylindrical lens, the first concave mirror, titanium are precious
Stone crystal, the second concave mirror, the first fused quartz prism, first laser high reflective mirror, the second fused quartz prism, second laser are high
Anti- mirror；Laser original road is reflexed to first concave mirror by the second laser high reflective mirror, and first concave mirror is anti-by laser
It is incident upon output coupling mirror, is disposed with the first chirped mirror, second according to the direction of propagation of output coupling mirror output laser
Chirped mirror, the first wedge, the second wedge；First concave mirror, titanium gem crystal, the second concave mirror, the first fused quartz trigone
Mirror, first laser high reflective mirror, the second fused quartz prism, second laser high reflective mirror, output coupling mirror are respectively positioned in laser cavity；Its
In,
The laser diode realizes the operating of kerr lens self-locking mode as pumping source, for titanium gem crystal；
The non-spherical lens, Plano concave cylindr lens, plano-convex cylindrical lens, for the light beam of laser diode fast axle and slow axis standard
It is straight and slow axis beam to expand；
The plano-convex focus lamp focuses to the light beam after collimating and expanding on titanium gem crystal；
First concave mirror, the second concave mirror, for guaranteeing the mould of laser beam waist and pump light on titanium gem crystal
Formula matching；
The titanium gem crystal, with cut at Brewster angle for absorbing pumping source laser energy, in laser cavity by
Swash radiation and gain is provided；
The first fused quartz prism, the second fused quartz prism, for the dispersion adjustment and wavelength tune in laser cavity
It is humorous, and then realize ultrashort pulse output；
The first laser high reflective mirror, second laser high reflective mirror, in the second order color that the wavelength band of 720-1000nm provides
It dissipates are as follows: -70fs2 ± 20fs2；
The output coupling mirror is a plane mirror, exports for laser；
First chirped mirror, the second chirped mirror, for carrying out pulse compression outside laser cavity to output laser.
First wedge, the second wedge, for the dispersion compensation to the compressed output laser of pulse outside laser cavity.
Preferably, the laser diode Output of laser wavelength be bluish-green optical band, laser diode be multimode output and
Power stability is less than 1%RMS.
Preferably, first concave mirror and the second concave surface curvature radius are R=50mm, backwards to the one of titanium gem crystal
Face is coated with the anti-reflection film of 440-540nm, and towards the high-reflecting film for being coated with 650-1100nm on one side of titanium gem crystal, and size is
Half inch.
Preferably, the titanium gem crystal light passing length is 4mm, and doping concentration 0.25wt% is wrapped up using indium foil
It is fixed in the clamping of a red copper, the heat sink abutting of clamping and a red copper, heat sink to be connected with circulating water, temperature control exists
17℃。
Preferably, the first fused quartz prism, the second fused quartz prism, material is fused quartz, and is cloth scholar
This special angle cutting, each side length are 30mm, the first fused quartz prism, the second fused quartz prism tip spacing be
400mm。
Preferably, the first laser high reflective mirror and second laser high reflective mirror are one inch of plane mirror, reflection bandwidth
For 650-1100nm, and reflectivity is greater than 99.8%.
Preferably, the output coupling mirror is a 1mm thickness, half inch of plane mirror, towards the one side of titanium gem crystal
It is coated with the deielectric-coating that output coupling rate is 1% at 650-950nm laser, the another side of the output coupling mirror is coated with to oscillation
The anti-reflection deielectric-coating of laser.
Preferably, first chirped mirror and the second chirped mirror, to the laser reflectivity of 640-1100nm wave band be R >
99.7%, in the second-order dispersion that the wavelength band of 640-1000nm provides are as follows: -40fs2 ± 15fs2.
Preferably, the tip inclination angle of first wedge and the second wedge is 2 ° 48 ', with a thickness of 1.5mm-50 μm, is used
In dispersion adjustment fine outside chamber.
The present invention is directed to realize the kerr lens Self-Mode-Locked Ti: Sapphire Laser of LD pumping, obtains pulse width and be less than
The ultrashort laser pulse of 10fs, mean power greater than 50mW exports；Asia is realized compared to previous LD pumping ti sapphire laser
The ultrashort pulse of 10fs exports.So short pulse width is generated to generally require to realize using kerr lens mode locking technology, and
Kerr lens mode locking requires the pumping source of high brightness single transverse mode to introduce soft aperture slot.Therefore we devise using aspherical
Mirror, plano-concave cylindrical lens, piano convex cylindrical lens have carried out shaping again to the outgoing beam of LD, so that the size and chamber of pump light
Interior mode preferably matches.Use chirped mirror and prism to combined dispersion compensation schemes, chirped mirror provides fixed bear
Group delay dispersion come compensate laser crystal introducing positive group delay dispersion, prism is to for second-order dispersion net in adjusting cavity
And third-order dispersion.
Compared with the prior art the present invention has the advantages that
The present invention use laser diode (LD) pumping oscillator, be not only simple in structure it is compact and at low cost, have
Good practicability, it is suitable for mass production, it can be realized mean power greater than the M type light that 50mW, output full width at half maximum are 146nm
Spectrum, the ultrashort laser pulse of 8.1fs, the femtosecond laser light source is in fields such as Ultrafast spectrum, two photon imaging, ultrafast optic communications
With important potential application.Stability height of the present invention, good beam quality, it is easy to maintain the advantages that, can be widely used in it is military,
The fields such as industry, medical treatment, scientific research, have broad application prospects and commercial value.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.It should be evident that the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is that the 10 femtosecond Ti:Sapphire oscillator structure of Asia that laser diode provided in an embodiment of the present invention directly pumps is shown
It is intended to.
Fig. 2 is the stable mode-locking spectral schematic provided in an embodiment of the present invention measured with spectrometer.
Fig. 3 is the autocorrelator trace schematic diagram provided in an embodiment of the present invention measured with interference autocorrelation function analyzer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
1 pair of application principle of the invention is explained in detail with reference to the accompanying drawing.
As shown in Figure 1, the 10 femtosecond Ti:Sapphire oscillator of Asia that the laser diode of the embodiment of the present invention directly pumps is main
By: 1- laser diode, 2- non-spherical lens, 3- Plano concave cylindr lens, 4- plano-convex cylindrical lens, 5- plano-convex focus lamp, 6- first are recessed
Face mirror, 7- titanium gem crystal, the second concave mirror of 8-, the first fused quartz of 9- Mitsubishi mirror, 10- first laser high reflective mirror, 11- second are molten
Quartzy Mitsubishi's mirror, 12- first laser high reflective mirror, 13- output coupling mirror, the first chirped mirror of 14-, the second chirped mirror of 15-, 16-
One wedge, the first wedge of 17-.
1- laser diode, for pumping Ti:Sapphire laser femtosecond oscillator, a length of bluish-green wave band of the laser diode outgoing wave,
Multimode output and power stability are less than 1%RMS；
2- non-spherical lens focal length is that F=4mm, 3- Plano concave cylindr lens focal length are F=-30mm, 4- plano-convex cylindrical lens focal length
For F=300mm, for the beam collimation of first laser diode fast axle and slow axis and expanding for slow axis beam；It is aspherical
For mirror apart from laser diode 4.1mm, non-spherical lens is 26mm at a distance from Plano concave cylindr lens, and Plano concave cylindr lens peace pillar is saturating
The distance of mirror is 245mm.
5- plano-convex focus lamp (focal length F=60mm) is that the light beam focusing after collimation is coupled into inside titanium gem crystal.?
It is transmitted on 70mm to titanium gem crystal in air, and plano-convex focus lamp is apart from upper optical element plano-convex cylindrical lens 100mm.
6- the first concave surface curvature radius is R=50mm, 440-540nm wave band antireflection rate < 5%, 650-1100nm tool
There is high reflectance > 99.8%, and -70fs can be provided in 720-1000nm wave band2±20fs2Group delay dispersion, 8- second it is recessed
Face curvature radius is R=50mm, for guaranteeing the pattern match of laser beam waist and pump light on laser crystal, 440-
540nm wave band antireflection rate < 5%, can provide the high reflectance greater than 99.8%, and in 720- in 650-1100nm wave band
1000nm wave band can provide -70fs2±20fs2Group delay dispersion；First concave mirror and the second concave surface mirror spacing are 53mm,
And angle folding is 12 °.
7- titanium gem crystal, light passing length be 4mm, doping concentration: 0.25wt%, with cut at Brewster angle, for inhaling
Pumping laser energy is received, provides gain to intracavitary stimulated radiation, and is fixed on a clamping, clamping is tightly attached to one
A red copper quality it is heat sink on, heat sink to be connected with circulating water, temperature is maintained at 17 DEG C；The front end distance first of titanium gem crystal
Concave mirror 25mm, the second concave mirror of end distance 24mm of titanium gem crystal.
The first fused quartz of 9- prism, 11- the second fused quartz prism realize chamber for the dispersion compensation in laser cavity
Interior net dispersion amount fine-tunes；And first the second concave mirror of the fused quartz prism distance 300mm.
10- first laser high reflective mirror, 12- second laser high reflective mirror, to the laser of 650-1100nm wave band have R >
99.8% high reflectance, and -70fs can be provided in 720-1000nm wave band2±20fs2Group delay dispersion；First laser
High reflective mirror distance the first fused quartz prism 80mm, distance the second fused quartz prism 320mm, and the angle folding of the first high reflective mirror
It is 8 °.Second fused quartz prism is apart from second laser high reflective mirror 100mm.
13- output coupling mirror is the plane mirror of a 1mm thickness, half inch of size, exports for laser, in 650-950nm
Wave band output rating is 1%；The first concave mirror of output coupling mirror distance 400mm.
The first chirped mirror of 14-, the second chirped mirror of 15- can provide the high reflection of R > 99.8% in 640nm-1100nm wave band
Rate is -40fs in the dispersion of 650nm-1000nm wave band2±15fs2, chamber external compression for pulse；Laser beam is with 10 °
Incident angles to the first chirped mirror surface, the first, second chirped mirror is placed in parallel, and spacing is 35mm.
The first wedge of 16-, the second wedge, inclination angle is that inclination angle is 2 ° 48 ', with a thickness of 1.5mm-50 μm, is realized outside laser cavity
Dispersion fine-tunes.First wedge distance the second chirped mirror 150mm, the first wedge, the second wedge are Brewster angle swing
It puts, the two interval 2mm.
Application principle of the invention is further described combined with specific embodiments below.
Specific embodiments of the present invention:
In Fig. 1,1 light beam of laser diode makes the output laser fast axle, slow of laser diode 1 by non-spherical lens 2
Axis is collimated；Then the light beam after collimation passes sequentially through Plano concave cylindr lens 3, plano-convex cylindrical lens 4 are able to the slow axis of light beam
Extension, collimation；Beam level outgoing after collimation passes through planoconvex lens 5；The pump light light beam of collimation is made by the focusing of planoconvex lens
Pump spot focuses on titanium gem crystal 7 and excites fluorescence；Fluorescence successively reaches the second concave mirror 8, and it is molten to reflex to first
Quartzy prism 9, refraction reaches first laser high reflective mirror 10, then is reflected onto the second fused quartz prism 11, refracts to second
Laser high reflective mirror 12；Subsequent backtracking is to crystal and reaches the first concave mirror 6, and fluorescence is reflected onto output coupling mirror 13, glimmering
Light, back and forth can be from reproducing in laser cavity under the path, i.e. realization laser generation.Laser from output coupling mirror 13 transmission after to
Up to the first chirped mirror 14, the second chirped mirror 15 is reflexed to；The first point is passed sequentially through after two secondary reflections between chirped mirror 14-15
The 16, second wedge 17 is split, to realize the ultrashort pulse output of 8.1fs.
The present invention by optimization LD pump light collimation, pump light matched with zlasing mode, the spacing of prism pair, and
A pair of of chirped mirror and a pair of of wedge are introduced outside laser cavity, have obtained the laser spectrum of 650nm-1000nm, as shown in Figure 2；And benefit
Measuring laser pulse width with commercial interference autocorrelation function analyzer is 8.1fs, as shown in Figure 3.
Above to a kind of 10 femtosecond Ti:Sapphire oscillator of the Asia that laser diode directly pumps progress provided by the present invention
It is discussed in detail, used herein a specific example illustrates the principle and implementation of the invention, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
Herein, relational terms such as first and second and the like be used merely to by an entity or operation with it is another
One entity or operation distinguish, and without necessarily requiring or implying between these entities or operation, there are any this reality
Relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
Claims (9)
1. the 10 femtosecond Ti:Sapphire oscillator of Asia that a kind of laser diode directly pumps, it is characterised in that: including according to laser
Broadcast laser diode, non-spherical lens, Plano concave cylindr lens, plano-convex cylindrical lens, the first concave mirror, Ti:Sapphire laser that direction is set gradually
Crystal, the second concave mirror, the first fused quartz prism, first laser high reflective mirror, the second fused quartz prism, second laser are high anti-
Mirror；Laser original road is reflexed to first concave mirror by the second laser high reflective mirror, and first concave mirror is by laser reflection
To output coupling mirror, the first chirped mirror, the 2nd Zhou are disposed with according to the direction of propagation of output coupling mirror output laser
It sings mirror, the first wedge, the second wedge；Wherein,
The laser diode realizes the operating of kerr lens self-locking mode as pumping source, for titanium gem crystal；
The non-spherical lens, Plano concave cylindr lens, plano-convex cylindrical lens, for laser diode fast axle and slow axis beam collimation with
And slow axis beam expands；
The plano-convex focus lamp focuses to the light beam after collimating and expanding on titanium gem crystal；
First concave mirror, the second concave mirror, for guaranteeing the mode of laser beam waist and pump light on titanium gem crystal
Match；
The titanium gem crystal is excited spoke in laser cavity with cut at Brewster angle for absorbing pumping source laser energy
Offer gain is provided；
The first fused quartz prism, the second fused quartz prism, for the dispersion adjustment and wavelength tuning in laser cavity, into
And it realizes ultrashort pulse and exports；
The first laser high reflective mirror, second laser high reflective mirror, in the second-order dispersion that the wavelength band of 720-1000nm provides
Are as follows: -70fs2±20fs2；
The output coupling mirror is a plane mirror, exports for laser；
First chirped mirror, the second chirped mirror, for carrying out pulse compression outside laser cavity to output laser；
First wedge, the second wedge, for the dispersion compensation to the compressed output laser of pulse outside laser cavity.
2. the 10 femtosecond Ti:Sapphire oscillator of Asia that a kind of laser diode according to claim 1 directly pumps, feature
It is, the laser diode Output of laser wavelength is bluish-green optical band, and laser diode is multimode output.
3. the 10 femtosecond Ti:Sapphire oscillator of Asia that a kind of laser diode according to claim 1 directly pumps, feature
It is, first concave mirror and the second concave surface curvature radius are R=50mm, are coated with 440- on one side backwards to titanium gem crystal
The anti-reflection film of 540nm, towards the high-reflecting film for being coated with 650-1100nm on one side of titanium gem crystal, and size is half inch.
4. the 10 femtosecond Ti:Sapphire oscillator of Asia that a kind of laser diode according to claim 1 directly pumps, feature
It is, the titanium gem crystal light passing length is 4mm, doping concentration 0.25wt%, is wrapped on one using indium foil
In the clamping of red copper, the heat sink abutting of clamping and a red copper is heat sink to be connected with circulating water, and temperature is controlled at 17 DEG C.
5. the 10 femtosecond Ti:Sapphire oscillator of Asia that a kind of laser diode according to claim 1 directly pumps, feature
It is, the first fused quartz prism, the second fused quartz prism, material is fused quartz, and is cut at Brewster angle,
Each side length be 30mm, the first fused quartz prism, the second fused quartz prism tip spacing be 400mm.
6. the 10 femtosecond Ti:Sapphire oscillator of Asia that a kind of laser diode according to claim 1 directly pumps, feature
It is, the first laser high reflective mirror and second laser high reflective mirror, is one inch of plane mirror, reflection bandwidth 650-
1100nm, and reflectivity is greater than 99.8%.
7. the 10 femtosecond Ti:Sapphire oscillator of Asia that a kind of laser diode according to claim 1 directly pumps, feature
It is, the output coupling mirror is a 1mm thickness, half inch of plane mirror, towards being coated on one side in 650- for titanium gem crystal
The deielectric-coating that output coupling rate is 1% at 950nm laser, the another side of the output coupling mirror are coated with to the anti-reflection of oscillating laser
Deielectric-coating.
8. the 10 femtosecond Ti:Sapphire oscillator of Asia that a kind of laser diode according to claim 1 directly pumps, feature
It is, first chirped mirror and the second chirped mirror, is R > 99.7% to the laser reflectivity of 640-1100nm wave band,
The second-order dispersion that the wavelength band of 640-1000nm provides are as follows: -40fs2±15fs2。
9. the 10 femtosecond Ti:Sapphire oscillator of Asia that a kind of laser diode according to claim 1 directly pumps, feature
It is, the tip inclination angle of first wedge and the second wedge is 2 ° 48 ', with a thickness of 1.5mm-50 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419821.1A CN110120622A (en) | 2019-05-20 | 2019-05-20 | A kind of 10 femtosecond Ti:Sapphire oscillator of the Asia that laser diode directly pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419821.1A CN110120622A (en) | 2019-05-20 | 2019-05-20 | A kind of 10 femtosecond Ti:Sapphire oscillator of the Asia that laser diode directly pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110120622A true CN110120622A (en) | 2019-08-13 |
Family
ID=67522857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910419821.1A Pending CN110120622A (en) | 2019-05-20 | 2019-05-20 | A kind of 10 femtosecond Ti:Sapphire oscillator of the Asia that laser diode directly pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110120622A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111740303A (en) * | 2020-07-30 | 2020-10-02 | 暨南大学 | Femtosecond mode-locked laser based on disordered laser crystal and laser generation method |
| US11695249B2 (en) | 2020-12-04 | 2023-07-04 | Electronics And Telecommunications Research Institute | Femtosecond pulse laser apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621172A (en) * | 2008-06-30 | 2010-01-06 | 中国科学院物理研究所 | Titanium-doped sapphire laser for generating high repetition frequency few-cycle femtosecond pulses |
| CN102879969A (en) * | 2012-09-27 | 2013-01-16 | 中国科学院物理研究所 | Optical frequency comb on basis of spectral shaping self difference frequency generation technology |
| CN106405973A (en) * | 2016-09-08 | 2017-02-15 | 中国科学院物理研究所 | Super continuous coherent light source |
| JP2018031971A (en) * | 2016-08-26 | 2018-03-01 | 国立研究開発法人理化学研究所 | Nonlinear optical microscope, spatial phase modulator, and nonlinear optical microscopy |
| CN109193329A (en) * | 2018-10-17 | 2019-01-11 | 西安电子科技大学 | A kind of kerr lens Self-Mode-Locked Ti: Sapphire Laser based on blue light laser diode pumping |
-
2019
- 2019-05-20 CN CN201910419821.1A patent/CN110120622A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621172A (en) * | 2008-06-30 | 2010-01-06 | 中国科学院物理研究所 | Titanium-doped sapphire laser for generating high repetition frequency few-cycle femtosecond pulses |
| CN102879969A (en) * | 2012-09-27 | 2013-01-16 | 中国科学院物理研究所 | Optical frequency comb on basis of spectral shaping self difference frequency generation technology |
| JP2018031971A (en) * | 2016-08-26 | 2018-03-01 | 国立研究開発法人理化学研究所 | Nonlinear optical microscope, spatial phase modulator, and nonlinear optical microscopy |
| CN106405973A (en) * | 2016-09-08 | 2017-02-15 | 中国科学院物理研究所 | Super continuous coherent light source |
| CN109193329A (en) * | 2018-10-17 | 2019-01-11 | 西安电子科技大学 | A kind of kerr lens Self-Mode-Locked Ti: Sapphire Laser based on blue light laser diode pumping |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111740303A (en) * | 2020-07-30 | 2020-10-02 | 暨南大学 | Femtosecond mode-locked laser based on disordered laser crystal and laser generation method |
| US11695249B2 (en) | 2020-12-04 | 2023-07-04 | Electronics And Telecommunications Research Institute | Femtosecond pulse laser apparatus |
| US12003073B2 (en) | 2020-12-04 | 2024-06-04 | Electronics And Telecommunications Research Institute | Femtosecond pulse laser apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109066280A (en) | A kind of power proportions and pulse spacing adjustable dual wavelength light parametric oscillator | |
| CN109643879A (en) | Frequency double laser and harmonic laser production method | |
| CN110120622A (en) | A kind of 10 femtosecond Ti:Sapphire oscillator of the Asia that laser diode directly pumps | |
| CN107658687B (en) | Self-starting femtosecond titanium gem laser oscillator of synchronous pump | |
| CN110797750A (en) | Optical parametric oscillator for outputting dual-wavelength mid-infrared light | |
| CN102868080A (en) | Device capable of generating high terahertz pulse through external cavity resonance enhancement | |
| CN103972776B (en) | Laser diode-pumped kerr lens mode locking Yb:(YLa)2o3all solid state femto-second laser | |
| CN109217077B (en) | A kind of tunable hollow laser of self-mixing | |
| CN213278684U (en) | Laser with adjustable power proportion and pulse interval | |
| CN211879768U (en) | Dual-wavelength pumping ultraviolet laser generating device | |
| CN109193329B (en) | Kerr lens self-mode-locking titanium gem laser based on blue laser diode pumping | |
| CN210007099U (en) | Dye laser device with Nile red organic solvents as gain media | |
| CN207765785U (en) | Narrow linewidth, tunable, continuous and mode-locked laser surface-emitting laser | |
| CN115981015A (en) | Single-period relativistic vortex light generation system and method based on multi-slice post-compression | |
| CN213602178U (en) | Parameter oscillation optical system | |
| CN115954752A (en) | Visible light waveband narrow linewidth laser device based on optical parametric oscillator and working method thereof | |
| CN105790045A (en) | High-energy few-cycle ultra-high-signal to noise ratio femtosecond seed pulse generation device | |
| CN113078536B (en) | Lateral pumping Nd-MgO-PPLN mid-infrared laser and double-prism wavelength control method thereof | |
| CN210379757U (en) | Tunable purple light pulse laser | |
| CN204290024U (en) | Infrared ring light parametric oscillator in a kind of compact three chamber mirrors | |
| CN208707068U (en) | A kind of power proportions and pulse spacing adjustable dual wavelength light parametric oscillator | |
| CN107978961B (en) | Femtosecond laser synchronous pumping high-power broadband degenerated femtosecond optical parametric oscillator | |
| CN114498280B (en) | Red light laser, laser frequency conversion device and method for generating red light laser | |
| CN218123957U (en) | Cascade multi-wavelength tunable laser for laser radar light source | |
| CN218070536U (en) | High-power nanosecond intracavity quintupling frequency laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190813 |