CN107895880A - A kind of side pumping disk gain module structure of nonbonding or sintering - Google Patents
A kind of side pumping disk gain module structure of nonbonding or sintering Download PDFInfo
- Publication number
- CN107895880A CN107895880A CN201711469787.6A CN201711469787A CN107895880A CN 107895880 A CN107895880 A CN 107895880A CN 201711469787 A CN201711469787 A CN 201711469787A CN 107895880 A CN107895880 A CN 107895880A
- Authority
- CN
- China
- Prior art keywords
- transmission line
- laser medium
- disk
- tapered transmission
- cooler
- 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.)
- Granted
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 34
- 238000005245 sintering Methods 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 239000011159 matrix material Substances 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims description 15
- 238000002310 reflectometry Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- HIQSCMNRKRMPJT-UHFFFAOYSA-J lithium;yttrium(3+);tetrafluoride Chemical compound [Li+].[F-].[F-].[F-].[F-].[Y+3] HIQSCMNRKRMPJT-UHFFFAOYSA-J 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- -1 tetrachloro-ethylene C2Cl4 Chemical compound 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
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
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/0602—Crystal lasers or glass lasers
- H01S3/0604—Crystal lasers or glass lasers in the form of a plate or disc
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Lasers (AREA)
Abstract
The invention provides the side pumping disk gain module structure of a kind of nonbonding or sintering, the program includes cooler, disk laser medium, tapered transmission line structure and diode laser matrix；Disk laser medium and tapered transmission line structure setting are on cooler；Tapered transmission line structure surrounds the lateral surface for being connected to disk laser medium；Diode laser matrix is provided with the lateral surface of tapered transmission line structure；The connection end of tapered transmission line structure and diode laser matrix is incidence end；Connection end of the tapered transmission line structure with disk laser medium even is exit end；The incidence end bore of tapered transmission line structure is more than the bore of exit end.The program can greatly improve the coupling efficiency of circular laser medium side pumping, and eliminating circular laser medium conventional side pumping needs to be bonded or sinter the technical barrier of tapered transmission line.Meanwhile waveguide also has and homogenizes effect well, pumping homogeneity is improved, reduces optical distortion during circular laser medium heat loading.
Description
Technical field
The present invention relates to high power solid state laser field, the side pumping disk of especially a kind of nonbonding or sintering
Gain module structure.
Background technology
With lasting propulsion of the laser diode pump solid state laser device to high-tech application field, to the power of laser
Horizontal and beam quality is proposed higher and higher requirement.Sheet gain media is easily achieved one-dimensional efficiently cooling, is advantageous to
The thermal distoftion inside laser is controlled, is the effective way for developing high power and high light beam quality laser using sheet laser medium
Footpath.
Sheet laser medium mainly has two kinds of configurations of lath and disk, and the output facula of lath sheet gain media is not pair
Claim structure, optical parameter both horizontally and vertically is different, thereby increases the complexity of slab laser development and application.Disk
Laser medium will be obviously not present disadvantages mentioned above, and the cooling structure of disk laser medium is all identical, i.e., is carried out by end face high
Effect cooling, and pump mode is then divided into two kinds of end-pumping and side pumping.
End-pumping mode is easily achieved, and is the main flow pumping configuration of existing Disk laser, due to disk laser medium
Rear end face has been used for microchannel cooling, only stays front end face while amplifies for pumping and laser generation, thus, pumping light path and sharp
Light generation amplification light path is in the same space region, and both optical components are easily interfered, and densification difficult to realize is set
Meter, two light path systems are caused to take huge space, optical path adjusting is complicated, and especially superpower laser needs multi-disc laser to be situated between
Matter concatenates, the problem of interfering just more prominent, the densification of laser, reliability and maintainability all suffers from choosing greatly very much
War.
Side pumping mode is that pumping light path and laser generation amplification light path are separated into different area of space, i.e. laser two
Pole pipe is changed to the side pumping from disk laser medium, avoids the deficiency of end-pumping mode, but the side of disk laser medium is very
It is thin, and side is the arc surface handled through feather plucking, is difficult to realize the efficient pumping of diode laser matrix.Existing method be
The side bonding of disk laser medium or sintering tapered transmission line, the pump guide for being launched diode laser matrix by tapered transmission line
Enter into disk laser medium, this is simple and compact for structure, but difficult in the technology of very thin arc surface bonding or sintering tapered transmission line
Degree is very big, and cost is also very high.
The content of the invention
The purpose of the present invention, aiming at the deficiency present in prior art, and provide a kind of side of nonbonding or sintering
Pumping disk gain module structure, the program can greatly improve the coupling efficiency of circular laser medium side pumping, eliminate circle
The pumping of shape laser medium conventional side needs to be bonded or sinter the technical barrier of tapered transmission line.Meanwhile waveguide also have well it is even
Change effect, improve pumping homogeneity, reduce optical distortion during circular laser medium heat loading.
This programme is achieved by the following technical measures：
The side pumping disk gain module structure of a kind of nonbonding or sintering, includes cooler, disk laser medium, conical wave
Guide structure and diode laser matrix；Disk laser medium and tapered transmission line structure setting are on cooler；Tapered transmission line structure
Around the lateral surface for being connected to disk laser medium；Diode laser matrix is provided with the lateral surface of tapered transmission line structure；Cone
The connection end of shape waveguiding structure and diode laser matrix is incidence end；Connection of the tapered transmission line structure with disk laser medium even
Hold as exit end；The incidence end bore of tapered transmission line structure is more than the bore of exit end.
As the preferred of this programme：Tapered transmission line structure is made up of upper cover plate, window lens and cooler；Window lens
The outward flange of cooler is arranged on, and the height of window lens is higher than the thickness of disk laser medium；Upper cover plate is covered in disk
On laser medium outer rim to the region on the top of window lens；The lower surface of upper cover plate and the inner side of window lens and cooler
Upper surface formed cavity in be injected with matching fluid；Diode laser matrix is arranged on the lateral surface of window lens.
As the preferred of this programme：Matching fluid is identical with the refractive index of disk laser medium.
As the preferred of this programme：The outer rim of upper cover plate is shaped as regular polygon；The outer rim shape and upper cover plate of cooler
Outer rim shape match；A window lens are both provided with each side of cooler；The outside of each window lens
One group of diode laser matrix is both provided with face.
As the preferred of this programme：The diameter of circular laser medium and the ratio of thickness are not less than 7：1.
As the preferred of this programme：The lower surface of upper cover plate and the upper surface of cooler are high anti-, reflectivity to pump light
≥98%。
As the preferred of this programme：Diode laser matrix emergent light enters after window lens and matching fluid successively
In disk laser medium.
The beneficial effect of this programme can learn according to the narration to such scheme, due in this scenario using matching fluid as
The waveguide material of circular laser medium profile pump, the side of matching fluid and circular laser medium be brought into close contact to be formed it is seamless
Solid-liquid interface, matching fluid is identical with the refractive index of circular laser medium more in addition, and reflection and scattering are not present between solid-liquid interface
Loss, can so greatly improve the coupling efficiency of circular laser medium side pumping, eliminate circular laser medium conventional side
Pumping needs to be bonded or sinter the technical barrier of tapered transmission line；The upper surface structure of the lower surface of upper cover plate, matching fluid and cooler
Tapered waveguiding structure, bigbore tapered transmission line incidence end can effectively improve pump power.Meanwhile waveguide also have well it is even
Change effect, improve pumping homogeneity, reduce optical distortion during circular laser medium heat loading.
As can be seen here, the present invention compared with prior art, has substantive distinguishing features and progress, its beneficial effect implemented
It is obvious.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is Fig. 1 overlooking the structure diagram.
In figure, 1 is diode array, and 2 be upper cover plate, and 3 be matching fluid, and 4 be window lens, and 5 be disk laser medium, 6
For cooler.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
This specification（Including any accessory claim, summary and accompanying drawing）Disclosed in any feature, except non-specifically chatting
State, can alternative features equivalent by other or with similar purpose replaced.I.e., unless specifically stated otherwise, each feature
It is an example in a series of equivalent or similar characteristics.
Embodiment one：
In Fig. 1, a kind of nonbonding or sintering side pumping disk gain module structure, including diode laser matrix 1, upper cover plate 2,
Matching fluid 3, window lens 4, circular laser medium 5, cooler 6；Diode laser matrix 1 is arranged on the outside week of upper cover plate 2
Enclose, diode laser matrix 1 shares eight sets in embodiment one, and corresponding window lens 4 also there are eight pieces, under upper cover plate 2
Cooler 6 is placed by side, and the angle of the lower surface of upper cover plate 2 and the upper surface of cooler 6 is 9 °；By upper cover plate 2, window lens 4,
Matching fluid 3 is filled with the tapered transmission line inner chamber that circular laser medium 5, cooler 6 are formed；Its light channel structure is the pole of laser two
The emergent light of pipe array 1 by the lower surface after window lens 4 through upper cover plate 2 and the multiple reflections of the upper surface of cooler 6, and
It is imported into by matching fluid 3 among circular laser medium 5.
The luminous bore of diode laser matrix 1 is 11mm × 10mm, and wavelength 805nm, quantity is eight sets.
The angle of the lower surface of upper cover plate 2 and the upper surface of cooler 6 is 9 °.
The bore of circular laser medium 5 is 20mm, and thickness 0.8mm, material is neodymium-doped yttrium-fluoride lithium Nd:YLF.
The a diameter of 19mm of inner circle of upper cover plate 2, outer periphery are octagon, a diameter of 98mm of octagon circumscribed circle, material
Expect to be more than 98% for stainless steel, the lower surface plating 805nm high-reflecting films of upper cover plate 2, reflectivity.
The material of cooler 6 is copper, and the upper surface of cooler 6 plating 805nm high-reflecting films, reflectivity is more than 98%.
The clear aperture of window lens 4 is 17mm × 15mm, and material is optical glass, and light admission port plates 805nm anti-reflection films, thoroughly
Rate is crossed more than 99%.
Matching fluid 3 is tetrachloro-ethylene C2Cl4, refractive index is close with circular laser medium 5.
The invention is not limited in foregoing embodiment.The present invention, which expands to, any in this manual to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (7)
1. the side pumping disk gain module structure of a kind of nonbonding or sintering, it is characterized in that：Include cooler, disk laser
Medium, tapered transmission line structure and diode laser matrix；The disk laser medium and tapered transmission line structure setting are in cooler
On；The tapered transmission line structure surrounds the lateral surface for being connected to disk laser medium；On the lateral surface of the tapered transmission line structure
It is provided with diode laser matrix；The connection end of the tapered transmission line structure and diode laser matrix is incidence end；The cone
Connection end of the shape waveguiding structure with disk laser medium even is exit end；The incidence end bore of the tapered transmission line structure is more than
Penetrate the bore at end.
2. the side pumping disk gain module structure of a kind of nonbonding according to claim 1 or sintering, it is characterized in that：Institute
Tapered transmission line structure is stated to be made up of upper cover plate, window lens and cooler；The window lens are arranged on the outside of cooler
Edge, and the height of window lens is higher than the thickness of disk laser medium；The upper cover plate is covered in disk laser medium outer rim extremely
On the region on the top of window lens；The lower surface of the upper cover plate and the inner side of window lens and the upper surface shape of cooler
Into cavity in be injected with matching fluid；The diode laser matrix is arranged on the lateral surface of window lens.
3. the side pumping disk gain module structure of a kind of nonbonding according to claim 2 or sintering, it is characterized in that：Institute
It is identical with the refractive index of disk laser medium to state matching fluid.
4. the side pumping disk gain module structure of a kind of nonbonding according to claim 2 or sintering, it is characterized in that：Institute
The outer rim for stating upper cover plate is shaped as regular polygon；The outer rim shape of the cooler and the outer rim shape of upper cover plate match；Institute
State and a window lens are both provided with each side of cooler；One group is both provided with the lateral surface of each window lens
Diode laser matrix.
5. the side pumping disk gain module structure of a kind of nonbonding according to claim 1 or sintering, it is characterized in that：Institute
The ratio of the diameter and thickness of stating circular laser medium is not less than 7：1.
6. the side pumping disk gain module structure of a kind of nonbonding according to claim 2 or sintering, it is characterized in that：Institute
It is high anti-, reflectivity >=98% to pump light to state the lower surface of upper cover plate and the upper surface of cooler.
7. the side pumping disk gain module structure of a kind of nonbonding according to claim 2 or sintering, it is characterized in that：Institute
Diode laser matrix emergent light is stated to enter after window lens and matching fluid in disk laser medium successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711469787.6A CN107895880B (en) | 2017-12-29 | Non-bonding or sintering side pumping wafer gain module structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711469787.6A CN107895880B (en) | 2017-12-29 | Non-bonding or sintering side pumping wafer gain module structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107895880A true CN107895880A (en) | 2018-04-10 |
| CN107895880B CN107895880B (en) | 2024-07-16 |
Family
ID=
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3900245A (en) * | 1972-09-06 | 1975-08-19 | Post Office | Coupler for liquid core optical waveguides |
| CN101501944A (en) * | 2006-06-23 | 2009-08-05 | 杰斯集团有限公司 | Device for coupling radiation into or out of an optical fibre |
| US20130208753A1 (en) * | 2012-02-09 | 2013-08-15 | Princeton Optronics | Optical Pump for High Power Laser |
| US20140307305A1 (en) * | 2011-06-13 | 2014-10-16 | Robert J. Deri | Method and system for cryocooled laser amplifier |
| CN208015067U (en) * | 2017-12-29 | 2018-10-26 | 中国工程物理研究院应用电子学研究所 | A kind of nonbonding or the side pumping disk gain module structure of sintering |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3900245A (en) * | 1972-09-06 | 1975-08-19 | Post Office | Coupler for liquid core optical waveguides |
| CN101501944A (en) * | 2006-06-23 | 2009-08-05 | 杰斯集团有限公司 | Device for coupling radiation into or out of an optical fibre |
| US20140307305A1 (en) * | 2011-06-13 | 2014-10-16 | Robert J. Deri | Method and system for cryocooled laser amplifier |
| US20130208753A1 (en) * | 2012-02-09 | 2013-08-15 | Princeton Optronics | Optical Pump for High Power Laser |
| CN208015067U (en) * | 2017-12-29 | 2018-10-26 | 中国工程物理研究院应用电子学研究所 | A kind of nonbonding or the side pumping disk gain module structure of sintering |
Non-Patent Citations (1)
| Title |
|---|
| HISASHI TERAE等: "TAPERED WAVEGUIDE BY LIQUID FOR A COUPLER OF OPTICAL FIBERS TO MEMS DEVICES", IEEE * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105375246B (en) | A kind of planar waveguide laser amplifier of end slope pumping | |
| US20040233960A1 (en) | Diode-pumped solid state disk laser and method for producing uniform laser gain | |
| EP3641081B1 (en) | Phonon band edge emission-based all solid state high power slab laser | |
| CN104765219B (en) | A kind of preparation method of Er ions lithium niobate fiber waveguide amplifier | |
| CN105071198B (en) | A kind of devices and methods therefor for eliminating the wavefront distortion caused by window-shaped becomes of laser gain module | |
| WO2015096114A1 (en) | Large-aperture laser amplifier side-pumped by multiple-dimensional laser diode stack | |
| CN106898937B (en) | Semiconductor laser side face couples the alkali metal laser axially pumped | |
| CN1987543A (en) | Optical fiber cable | |
| CN103337775B (en) | A kind of fiber end face pump laser | |
| CN104269725A (en) | Double-disc-serial-connecting pump light multi-pass transmission system and disc solid laser | |
| CN104319603A (en) | Strip laser amplifier and laser output method thereof | |
| CN107895880A (en) | A kind of side pumping disk gain module structure of nonbonding or sintering | |
| CN208015067U (en) | A kind of nonbonding or the side pumping disk gain module structure of sintering | |
| CN206864860U (en) | A kind of semiconductor side pumped amplification system | |
| CN102299464A (en) | Microchip solid state laser | |
| CN101673918B (en) | End-pumped solid-state laser | |
| CN104362495B (en) | A kind of slab laser amplifier and its laser output method | |
| CN107895880B (en) | Non-bonding or sintering side pumping wafer gain module structure | |
| CN205122985U (en) | Slab guide laser amplifier of end face obliquely pumping | |
| CN203387045U (en) | Optical fiber end-pumped laser | |
| CN209544813U (en) | Pumping configuration for high power glancing incidence slab laser beamquality improvement | |
| CN210723678U (en) | Optical fiber laser | |
| CN202119983U (en) | Large power semiconductor laser array light beam aligning apparatus | |
| CN104332807A (en) | Slab laser amplifier and laser output method | |
| CN103107479B (en) | 2.9 mu m intermediate infrared solid-state laser based on automatic Raman pump |
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 | ||
| GR01 | Patent grant |