CN208888465U - A kind of pulse stretcher convenient for miniaturization setting - Google Patents
A kind of pulse stretcher convenient for miniaturization setting Download PDFInfo
- Publication number
- CN208888465U CN208888465U CN201821714811.8U CN201821714811U CN208888465U CN 208888465 U CN208888465 U CN 208888465U CN 201821714811 U CN201821714811 U CN 201821714811U CN 208888465 U CN208888465 U CN 208888465U
- Authority
- CN
- China
- Prior art keywords
- mirror
- grating
- light
- concave spherical
- plane
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Lasers (AREA)
Abstract
The utility model discloses a kind of pulse stretchers convenient for miniaturization setting, which employs grating, concave spherical mirror, convex mirrors to broaden to light, and it uses second plane mirror and the light of the optical grating diffraction to second plane mirror is vertically reflected back grating, so, using foldable structure, on the one hand it is convenient for light backtracking, on the other hand the secondary broadening of light is realized, it is compared with conventional offner stretcher, be conducive to the overall dimensions for reducing this pulse stretcher in the case where realizing identical broadening amount, have substantive features and progress；In addition, this case, which uses optical fiber collimator, carries out outputting and inputting for light, convenient for the use of optical fiber class ultrafast laser.
Description
Technical field
The utility model relates to a kind of pulse stretchers convenient for miniaturization setting.
Background technique
With the continuous development of industrial altra-fast fs laser, the amplification of ultrashort pulse is always scientific research circle in some time
The problem of having a headache very much.The energy and high-peak power that extremely short pulse is unfavorable for absorbing in amplification cut-off are highly vulnerable to breakage amplification
Optical component in device.By expanding the cross-sectional area of pulse, a part of problem can solve, but area expansion is brought
The reduction of energy density is less useful for absorbing the storage energy of gain media, and can amplify the size of spot diameter also because
The limit is reached for the difficulty of crystal growth.In order to amplify the laser pulse of ultrahigh peak power, Gerard Mourou and
Donna Strickland utility model chirped pulse amplification technique, and therefore obtain Nobel Prize in physics in 2018.
The limit that chirped pulse amplification technique enables ultra-intense laser to reach is by 1015W/cm2, 10 are risen to all the way25W/cm2More than.
Its central principle is exactly that stretcher is utilized to broaden pulse, and the peak power of pulse is reduced, and then carries out conventional amplification, then press
Narrow spaces are retracted, high peak power is obtained.One laser can obtain great peak power, be largely by
What the stretching capability of stretcher was determined.The optical fiber technology that early stage Mourou is used, which carries out broadening, can not obtain very big exhibition
Width amount.Routine is to utilize offner stretcher and fiber stretcher.Offner stretcher due to being able to bear biggish power, and
And matching can be adjusted so that parameter is own, it is frequently used in solid research-based ultrafast laser, and bulky, use environment
Harshness is unfavorable in the large-scale applications such as industry.
Up to the present there is no the optical-fiber-coupling type offner stretchers of the big broadening amount of miniaturization to be developed.Cause
How this, overcome above-mentioned defect, it has also become those skilled in the art's important topic urgently to be resolved.
Utility model content
The utility model overcomes the deficiency of above-mentioned technology, provides a kind of pulse stretcher convenient for miniaturization setting.
To achieve the above object, the utility model uses following technical proposal:
A kind of pulse stretcher convenient for miniaturization setting, includes optical fiber collimator 1, the first plane mirror 2, grating
3, concave spherical mirror 4, convex mirror 5 and second plane mirror 6, wherein first plane mirror 2 is used for the light
The collimation emergent light of fine collimator 1 is reflected on the grating 3 and is diffracted into the grating 3 light of first plane mirror 2
It is reflected into the optical fiber collimator 1, the optical diffraction that the grating 3 is used to come first plane mirror 2 reflection to institute
State on concave spherical mirror 4 and the optical diffraction to the second plane mirror 6 for carrying out the concave spherical mirror 4 reflection on or
It is diffracted on first plane mirror 2, first plane mirror 2 and the second plane mirror 6 are positioned at described
The same outside and the two position of grating 3 are staggered, the concave spherical mirror 4 and the homocentric setting of the convex mirror 5, the convex surface
Mirror 5 is used to the light that the concave spherical mirror 4 reflection comes being reflected back concave spherical mirror 4, and the second plane mirror 6 is used for institute
It states grating 3 and is diffracted into the light of second plane mirror 6 and be vertically reflected back on grating 3；Wherein, this case optical pulse broadening process is such as
Under: the collimation emergent light of the optical fiber collimator 1 reflexes on the grating 3 by first plane mirror 2, the light
By on optical diffraction to the concave spherical mirror 4, light convergence is reflected on the convex mirror 5 grid 3 by the concave spherical mirror 4, described convex
Face mirror 5 reflects light back into the concave spherical mirror 4, and the concave spherical mirror 4 reflects light back on the grating 3, and the grating 3 is by light
It is diffracted into the second plane mirror 6；Then light is vertically reflected back on the grating 3 by the second plane mirror 6,
For the grating 3 again by optical diffraction to the concave spherical mirror 4, light convergence is reflected into the convex mirror 5 by the concave spherical mirror 4
On, the convex mirror 5 reflects light back into the concave spherical mirror 4, and the concave spherical mirror 4 reflects light back on the grating 3, described
For grating 3 by optical diffraction to first plane mirror 2, it is quasi- that first plane mirror 2 reflects light to the optical fiber
In straight device 1.
A kind of pulse stretcher convenient for miniaturization setting as described above, the grating 3 use transmission grating, are located at
Between the concave spherical mirror 4 and the convex mirror 5 and the height that is staggered is not to hinder between concave spherical mirror 4 and the convex mirror 5
The reflection of light.
A kind of pulse stretcher convenient for miniaturization setting as described above, the tail portion of the optical fiber collimator 1 passes through light
Fibre is connected with optical circulator.
Compared with prior art, the utility model has the beneficial effects that
1, this case pulse stretcher uses grating, concave spherical mirror, convex mirror and broadens to light, and uses second
The light of the optical grating diffraction to second plane mirror is vertically reflected back grating by plane mirror, folds knot in this way, using
On the one hand structure is convenient for light backtracking, on the other hand realizes the secondary broadening of light, compared with conventional offner stretcher,
Be conducive to the overall dimensions that this pulse stretcher is reduced in the case where realizing identical broadening amount, with substantive distinguishing features and into
Step；In addition, this case, which uses optical fiber collimator, carries out outputting and inputting for light, convenient for the use of optical fiber class ultrafast laser.
2, the grating uses transmission grating, between the concave spherical mirror and the convex mirror and is staggered highly
Not hinder the reflection of light between concave spherical mirror and the convex mirror, in this way, convenient for preferably reducing the whole of this pulse stretcher
Body size.
3, the tail portion of the optical fiber collimator is connected with optical circulator by optical fiber, in this way, being convenient for will by optical circulator
The light of laser seed source be input to this pulse stretcher and by through this pulse stretcher broadening after light output, application side
Just.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this case.
Specific embodiment
The utility model feature and other correlated characteristics are described in further detail by the following examples, in order to same
The understanding of industry technology personnel:
As shown in Figure 1, a kind of pulse stretcher convenient for miniaturization setting, includes that optical fiber collimator 1, the first plane are anti-
Penetrate mirror 2, grating 3, concave spherical mirror 4, convex mirror 5 and second plane mirror 6, wherein first plane mirror 2 is used
It is anti-in the collimation emergent light of the optical fiber collimator 1 is reflected on the grating 3 and the grating 3 is diffracted into the first plane
The light for penetrating mirror 2 is reflected into the optical fiber collimator 1, and the grating 3 is used for the light for carrying out first plane mirror 2 reflection
It is diffracted on the concave spherical mirror 4 and for the concave spherical mirror 4 to be reflected the optical diffraction come to second plane reflection
It on mirror 6 or is diffracted on first plane mirror 2, first plane mirror 2 and the second plane mirror 6
In the grating 3 same outside and the two position be staggered, the concave spherical mirror 4 and the homocentric setting of the convex mirror 5, institute
It states light of the convex mirror 5 for carrying out the concave spherical mirror 4 reflection and is reflected back concave spherical mirror 4, the second plane mirror 6 is used
It is vertically reflected back on grating 3 in the light that the grating 3 is diffracted into second plane mirror 6；Wherein, this case optical pulse broadening mistake
Journey is as follows: the collimation emergent light of the optical fiber collimator 1 reflexes on the grating 3 by first plane mirror 2, institute
Grating 3 is stated by optical diffraction to the concave spherical mirror 4, light convergence is reflected on the convex mirror 5 by the concave spherical mirror 4, institute
It states convex mirror 5 and reflects light back into the concave spherical mirror 4, the concave spherical mirror 4 reflects light back on the grating 3, the grating 3
It will be on optical diffraction to the second plane mirror 6；Then light is vertically reflected back the grating by the second plane mirror 6
On 3, for the grating 3 again by optical diffraction to the concave spherical mirror 4, light convergence is reflected into the convex surface by the concave spherical mirror 4
On mirror 5, the convex mirror 5 reflects light back into the concave spherical mirror 4, and the concave spherical mirror 4 reflects light back on the grating 3,
For the grating 3 by optical diffraction to first plane mirror 2, first plane mirror 2 reflects light to the light
In fine collimator 1.
It is broadened as described above, this case pulse stretcher uses 5 pairs of grating 3, concave spherical mirror 4, convex mirror light, and
The light that the grating 3 is diffracted into second plane mirror 6 is vertically reflected back grating 3 using second plane mirror 6, such as
This, uses foldable structure, is on the one hand convenient for light backtracking, the secondary broadening of light is on the other hand realized, with routine
Offner stretcher is compared, and the overall dimensions that this pulse stretcher is reduced in the case where realizing identical broadening amount are conducive to,
It has substantive features and progress；In addition, this case, which uses optical fiber collimator 1, carries out outputting and inputting for light, it is super convenient for optical fiber class
The use of fast laser.
As described above, when it is implemented, the grating 3 use transmission grating, be located at the concave spherical mirror 4 with it is described convex
Between face mirror 5 and the height that is staggered is not to hinder the reflection of light between concave spherical mirror 4 and the convex mirror 5, in this way, convenient for more preferable
The overall dimensions for reducing this pulse stretcher.
As described above, when it is implemented, the grating 3 can also use other type gratings, such as reflecting grating, by anti-
It penetrates on the optical diffraction to the concave spherical mirror 4 that grating carrys out first plane mirror 2 reflection and by the concave spherical surface
On the optical diffraction to the second plane mirror 6 that the reflection of mirror 4 comes or it is diffracted on first plane mirror 2.
As described above, when it is implemented, the tail portion of the optical fiber collimator 1 is connected with optical circulator by optical fiber, in this way,
Convenient for by optical circulator by the light of laser seed source be input to this pulse stretcher and will through this pulse stretcher broadening after
Light output, application is convenient.
As described above, this case protection is a kind of pulse stretcher convenient for miniaturization setting, all and this case structure phase
Same or similar technical solution should all be shown as falling into the protection scope of this case.
Claims (3)
1. a kind of pulse stretcher convenient for miniaturization setting, it is characterised in that include that optical fiber collimator (1), the first plane are anti-
Penetrate mirror (2), grating (3), concave spherical mirror (4), convex mirror (5) and second plane mirror (6), wherein first plane
Reflecting mirror (2) is used to the collimation emergent light of the optical fiber collimator (1) is reflected on the grating (3) and by the grating
(3) light for being diffracted into the first plane mirror (2) is reflected into the optical fiber collimator (1), and the grating (3) is used for will be described
On the optical diffraction to the concave spherical mirror (4) that first plane mirror (2) reflection comes and it is used for the concave spherical mirror (4)
It on the optical diffraction to the second plane mirror (6) that reflection comes or is diffracted on first plane mirror (2), described the
One plane mirror (2) and the second plane mirror (6) are located at the same outside of the grating (3) and the two position has
It is staggered, the concave spherical mirror (4) and the convex mirror (5) homocentric setting, the convex mirror (5) are used for the concave spherical mirror
(4) light that reflection comes is reflected back on concave spherical mirror (4), and the second plane mirror (6) is for the grating (3) to be diffracted into
The light of second plane mirror (6) is vertically reflected back on grating (3)；Wherein, this case optical pulse broadening process is as follows: the optical fiber
The collimation emergent light of collimator (1) reflexes on the grating (3) by first plane mirror (2), the grating (3)
By on optical diffraction to the concave spherical mirror (4), light convergence is reflected on the convex mirror (5) by the concave spherical mirror (4), described
Convex mirror (5) reflects light back into the concave spherical mirror (4), and the concave spherical mirror (4) reflects light back on the grating (3), institute
Stating grating (3) will be on optical diffraction to the second plane mirror (6)；Then the second plane mirror (6) is vertical by light
It is reflected back on the grating (3), the grating (3) is again by optical diffraction to the concave spherical mirror (4), the concave spherical mirror (4)
Light convergence is reflected on the convex mirror (5), the convex mirror (5) reflects light back into the concave spherical mirror (4), the recessed ball
Face mirror (4) reflects light back on the grating (3), the grating (3) by optical diffraction to first plane mirror (2),
First plane mirror (2) reflects light in the optical fiber collimator (1).
2. a kind of pulse stretcher convenient for miniaturization setting according to claim 1, it is characterised in that the grating (3)
Using transmission grating, between the concave spherical mirror (4) and the convex mirror (5) and the height that is staggered is not to hinder recessed ball
The reflection of light between face mirror (4) and the convex mirror (5).
3. a kind of pulse stretcher convenient for miniaturization setting according to claim 1 or 2, it is characterised in that the optical fiber
The tail portion of collimator (1) is connected with optical circulator by optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821714811.8U CN208888465U (en) | 2018-10-23 | 2018-10-23 | A kind of pulse stretcher convenient for miniaturization setting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821714811.8U CN208888465U (en) | 2018-10-23 | 2018-10-23 | A kind of pulse stretcher convenient for miniaturization setting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208888465U true CN208888465U (en) | 2019-05-21 |
Family
ID=66516849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821714811.8U Withdrawn - After Issue CN208888465U (en) | 2018-10-23 | 2018-10-23 | A kind of pulse stretcher convenient for miniaturization setting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208888465U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143559A (en) * | 2018-10-23 | 2019-01-04 | 广东华快光子科技有限公司 | A kind of pulse stretcher of miniaturization |
-
2018
- 2018-10-23 CN CN201821714811.8U patent/CN208888465U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143559A (en) * | 2018-10-23 | 2019-01-04 | 广东华快光子科技有限公司 | A kind of pulse stretcher of miniaturization |
| CN109143559B (en) * | 2018-10-23 | 2023-07-25 | 广东华奕激光技术有限公司 | Miniaturized pulse stretcher |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lassonde et al. | High energy femtosecond pulse compression | |
| CN208888465U (en) | A kind of pulse stretcher convenient for miniaturization setting | |
| CN104319615B (en) | Excimer laser pulse widening device based on double beam splitting elements | |
| CN106469887A (en) | Double-pass Amplifier of Photonic Crystal Fiber | |
| CN110554513A (en) | optical fiber array device for debugging grating compressor and debugging method thereof | |
| CN208890090U (en) | A kind of convenient pulse stretcher structure of extension | |
| CN104810721A (en) | High-energy hundreds of picoseconds laser device based on stimulated Brillouin scattering pulse compression | |
| Sha et al. | Ultrafast fiber technologies for compact laser wake field in medical application | |
| CN100399649C (en) | High-energy femtosecond laser pulse external cavity compression device | |
| CN107045210B (en) | High-chip amount laser circular grating compressor | |
| CN109143559A (en) | A kind of pulse stretcher of miniaturization | |
| CN109286125A (en) | A kind of efficient chirped pulse amplification system | |
| CN201589894U (en) | Device for generating approximate non-diffracting beams | |
| CN203205699U (en) | Fiber solid mixing ultrashort pulse laser amplifier | |
| CN209544804U (en) | A kind of solid femtosecond amplifying device | |
| CN101738654A (en) | Novel optical element for generating non-diffracting light | |
| CN109066275A (en) | A kind of pulse stretcher structure convenient for extension | |
| CN207910231U (en) | Monolithic chirp body grating carries out the device of chirped pulse broadening and compression | |
| Kuznetsov et al. | Yb: YAG thin-rod laser amplifier with a high pulse energy for a fibre oscillator | |
| US7508847B2 (en) | Ultra-short laser source with rare earth ions and stable pulse train and device for lengthening a laser cavity | |
| CN106125448A (en) | A kind of method and apparatus of high efficiency ultrashort light pulse broadening | |
| CN102882117B (en) | All-solid-state picosecond laser multipass amplifier | |
| CN106159644A (en) | A kind of method and apparatus producing high energy pulse bag | |
| CN211907932U (en) | Femtosecond laser pulse compression device | |
| CN211088739U (en) | Femtosecond laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220421 Address after: 528400 zone a, third floor, No. 28, Yuquan Road, Torch Development Zone, Zhongshan City, Guangdong Province Patentee after: GUANGDONG HUAKUAI PHOTON TECHNOLOGY CO.,LTD. Patentee after: GUANGDONG HUAYI LASER TECHNOLOGY Co.,Ltd. Address before: No. 28, Yuquan Road, Torch Development Zone, Zhongshan City, Guangdong Province, 528400 Patentee before: GUANGDONG HUAKUAI PHOTON TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190521 Effective date of abandoning: 20230725 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190521 Effective date of abandoning: 20230725 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |