CN106356707A - Optical path adjusting device and method of quasi-three-level laser amplifying system - Google Patents
Optical path adjusting device and method of quasi-three-level laser amplifying system Download PDFInfo
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- CN106356707A CN106356707A CN201611049106.6A CN201611049106A CN106356707A CN 106356707 A CN106356707 A CN 106356707A CN 201611049106 A CN201611049106 A CN 201611049106A CN 106356707 A CN106356707 A CN 106356707A
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- beam coupling
- coupling system
- light beam
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000003287 optical effect Effects 0.000 title abstract description 9
- 230000008878 coupling Effects 0.000 claims abstract description 50
- 238000010168 coupling process Methods 0.000 claims abstract description 50
- 238000005859 coupling reaction Methods 0.000 claims abstract description 50
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 238000009826 distribution Methods 0.000 claims abstract description 11
- 238000003384 imaging method Methods 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 6
- 241000219739 Lens Species 0.000 claims description 4
- 210000000695 crystalline len Anatomy 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 241000196324 Embryophyta Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 241000931526 Acer campestre Species 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- 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
- H01S3/08—Construction or shape of optical resonators or components thereof
-
- 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
-
- 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
- H01S3/101—Lasers provided with means to change the location from which, or the direction in which, laser radiation is emitted
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention provides an optical path adjusting device and method of a quasi-three-level laser amplifying system. In the scheme, a CDD camera is adopted to collect the fluorescence of a quasi-three-level gain medium, light spots of the fluorescence are analyzed by a display terminal and fed back to control a seed light beam coupling system and a pump light beam coupling system to adjust the seed light and pump light, indirect monitoring and accurate adjustment of the injection position in the gain medium and intensity distribution of the seed light and pump light are realized, and the need for optical path adjustment of the quasi-three-level laser amplifying system is met.
Description
Technical field
The present invention relates to laser technology field, especially a kind of quasi-three-level laser amplifier system light path regulating device
And control method.
Background technology
Laser amplifier system be realize high power, narrow linewidth, high light beam quality laser output important means, industry,
The fields such as scientific research, military affairs are widely studied.Due to quasi-three-level laser material (as yb:yag) have Excited state little, produce
The advantages of ratio of specific heat is low high with energy storage density, it is capable of more efficient laser amplifier output, thus becomes domestic and international research
Focus.However, in laser amplifier system, optical element is several at least, at most up to a hundred, and also optical maser wavelength is mostly infrared not
Visible ray, these considerably increase the difficulty of optical path adjusting.How to realize pump light uniform pumping gain regions, meet simultaneously and plant
Son and pump light center superposition, have important impact to laser amplifier system efficiency and performance or even safety.
Therefore, currently it is capable of seed light and pump light injection gain media position and intensity are divided in the urgent need to one kind
The monitoring of cloth and accurate adjustment, meet the solution of the optical path adjusting needs of quasi-three-level laser amplifier system.
Content of the invention
The purpose of the present invention is it is simply that be directed to the deficiency existing for prior art, and provides a kind of quasi-three-level laser amplifier
System light path adjusting means and control method, the program is capable of to seed light and pump light injection gain media position and strong
The monitoring of degree distribution and accurate adjustment, meet the optical path adjusting needs of quasi-three-level laser amplifier system.
This programme is achieved by the following technical measures:
A kind of quasi-three-level laser amplifier system light path regulating device, includes seed light beam coupling system, pump beam coupling
Assembly system, quasi-three-level gain medium, imaging len, ccd camera and display terminal；Described seed light beam coupling system
The pump light that the seed light sending and pump light beam coupling system send all injects quasi-three-level gain medium, generation
Fluorescence is imaged on cdd camera through imaging len；The fluorescent intensity distributed data of described cdd collected by camera is through display terminal
After acquisition process, display terminal controls seed light beam coupling system and pump light beam coupling system to seed light and pump light
It is adjusted.
Preferred as this programme: seed light beam coupling system and pump light beam coupling system can adjust seed light
Light distribution with pump light, spot size and injection phase.
Preferred as this programme: quasi-three-level gain medium be transmitting 1030 nm laser yb:yag medium or
Launch the nd:yag medium of 946 nm laser, its shape is pole or lath or flake structure.
Preferred as this programme: imaging len is globe lenss, can be to seed light and the lower quasi-three-level of pump light injection
The fluorescence that gain medium produces is imaged.
Preferred as this programme: ccd camera test surface is placed on imaging len position of focal plane, divides for measuring fluorescent intensity
Cloth.
A kind of quasi-three-level laser amplifier system light path regulating method, includes following steps:
A, installation light path regulating device, are then turned on seed light beam coupling system and pump light beam coupling system, make seed
Light and pump light injection quasi-three-level gain medium；
B, it is directed at the fluorescence that sends of three-level laser gain media using imaging len and is imaged, then adopt cdd camera pair
The hot spot of imaging is acquired；
After c, image-forming information analysis cdd camera collected using display terminal, control seed light beam coupling system and pumping
Light beam coupling system is adjusted to seed light and pump light.
Preferred as this programme: in step c, seed light beam coupling system and pump light beam coupling system adjust and plant
The light intensity of sub-light and pump light, spot size and injection phase.
Preferred as this programme: step c adjusts seed light beam coupling system and pump light beam coupling system is adjusted
Seed light and pump light, until inject, in seed light and pump light, the fluorescence distribution center that quasi-three-level gain medium produces
Overlap.
The beneficial effect of this programme can be learnt according to the narration of such scheme, due to adopting cdd camera in this scenario
The fluorescence of collection quasi-three-level gain medium, then passes through the hot spot of display terminal analysis of fluorescence, and feedback control kind
Sub-light beam coupling system and pump light beam coupling system are adjusted to seed light and pump light, realize to seed light and pump
The indirect monitoring of Pu light injection gain media position and intensity distributions and accurate adjustment, meet quasi-three-level laser amplifier system
Optical path adjusting needs.
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
Fig. 1 is the structural representation of the present invention.
In figure, 1 is seed light beam coupling system, and 2 is pump light beam coupling system, and 3 are, 4 are defined three-level laser
Gain media, 5 is imaging len, and 6 is cdd camera, and 7 is display terminal.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive
Feature and/or step beyond, all can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary and accompanying drawing), except non-specifically is chatted
State, all can be replaced by other alternative features equivalent or that there is similar purpose.I.e., unless specifically stated otherwise, each feature
It is a series of equivalent or one of similar characteristics example.
As illustrated, a kind of quasi-three-level laser amplifier system light path regulating device of this programme, include seed light light
Bundle coupled system, pump beam coupled system, quasi-three-level gain medium, imaging len, ccd camera and display terminal；
Seed light that described seed light beam coupling system sends and the pump light that pump light beam coupling system sends all inject accurate three
Energy level gain medium, the fluorescence of generation is imaged on cdd camera through imaging len；The fluorescence of described cdd collected by camera
After display terminal acquisition process, display terminal controls seed light beam coupling system and pump light light beam to light distribution data
Coupled system is adjusted to seed light and pump light.Seed light beam coupling system and pump light beam coupling system can be adjusted
The light distribution of section seed light and pump light, spot size and injection phase.Quasi-three-level gain medium is transmitting
The yb:yag medium of 1030 nm laser or the nd:yag medium of transmitting 946 nm laser, its shape is pole or lath or thin slice
Structure.Imaging len is globe lenss, and seed light and the lower quasi-three-level gain medium of pump light injection can be produced is glimmering
Light is imaged.Ccd camera test surface is placed on imaging len position of focal plane, for measuring fluorescent intensity distribution.
A kind of quasi-three-level laser amplifier system light path regulating method, includes following steps:
A, installation light path regulating device, are then turned on seed light beam coupling system and pump light beam coupling system, make seed
Light and pump light injection quasi-three-level gain medium；
B, it is directed at the fluorescence that sends of three-level laser gain media using imaging len and is imaged, then adopt cdd camera pair
The hot spot of imaging is acquired；
After c, image-forming information analysis cdd camera collected using display terminal, control seed light beam coupling system and pumping
Light beam coupling system is adjusted to seed light and pump light.
The light of seed light beam coupling system and pump light beam coupling system regulation seed light and pump light in step c
By force, spot size and injection phase.
Step c adjusts seed light beam coupling system and pump light beam coupling system adjusts seed light and pump light, directly
Inject the fluorescence distribution center superposition that quasi-three-level gain medium produces in seed light and pump light.
The embodiment of this programme:
It is yb:yag crystal lath from quasi-three-level gain medium, lath length 82 mm(z), wide 10 mm(y) and, thick 1.8
Mm(x).1030 nm optical fiber seed light inject lath, spot width about 6 mm through beam coupling system；940 nm or 970 nm bis-
Pole pipe array both-end pumping lath, pump light is in lath porch width about 5 mm.
Using said apparatus and method, measure the fluorescence intensity distribution obtaining under pump light and seed light injection.Permissible
Find out that the fluorescence distribution center under pump light and seed light injection overlaps well, sharpness of border is it is achieved that to seed light and pump
The indirect monitoring of Pu light injection gain media position and intensity distributions and accurate adjustment.
The invention is not limited in aforesaid specific embodiment.The present invention expands to and any discloses in this manual
New feature or any new combination, and the arbitrary new method of disclosure or the step of process or any new combination.
Claims (8)
1. a kind of quasi-three-level laser amplifier system light path regulating device, is characterized in that: include seed light beam coupling system,
Pump beam coupled system, quasi-three-level gain medium, imaging len, ccd camera and display terminal；Described seed light light
The pump light that the bundle seed light that sends of coupled system and pump light beam coupling system send all injects quasi-three-level laser gain
Medium, the fluorescence of generation is imaged on cdd camera through imaging len；The fluorescent intensity distributed data of described cdd collected by camera
After display terminal acquisition process, display terminal controls seed light beam coupling system and pump light beam coupling system to kind
Sub-light and pump light are adjusted.
2. a kind of quasi-three-level laser amplifier system light path regulating device according to claim 1, is characterized in that: described kind
Sub-light beam coupling system and pump light beam coupling system can adjust the light distribution of seed light and pump light, spot size
And injection phase.
3. a kind of quasi-three-level laser amplifier system light path regulating device according to claim 1, is characterized in that: described standard
Three-level laser gain media is the yb:yag medium of transmitting 1030 nm laser or the nd:yag medium of transmitting 946 nm laser,
Its shape is pole or lath or flake structure.
4. a kind of quasi-three-level laser amplifier system light path regulating device according to claim 1, is characterized in that: described one-tenth
As lens are globe lenss, the fluorescence of seed light and pump light injection lower quasi-three-level gain medium generation can be become
Picture.
5. a kind of quasi-three-level laser amplifier system light path regulating device according to claim 1, is characterized in that: described
Ccd camera test surface is placed on imaging len position of focal plane, for measuring fluorescent intensity distribution.
6. a kind of quasi-three-level laser amplifier system light path regulating method, is characterized in that: includes following steps:
A, installation light path regulating device, are then turned on seed light beam coupling system and pump light beam coupling system, make seed
Light and pump light injection quasi-three-level gain medium；
B, it is directed at the fluorescence that sends of three-level laser gain media using imaging len and is imaged, then adopt cdd camera pair
The hot spot of imaging is acquired；
After c, image-forming information analysis cdd camera collected using display terminal, control seed light beam coupling system and pumping
Light beam coupling system is adjusted to seed light and pump light.
7. method according to claim 6, is characterized in that: seed light beam coupling system and pump light in described step c
Beam coupling system adjusts light intensity, spot size and the injection phase of seed light and pump light.
8. method according to claim 6, is characterized in that: described step c adjusts seed light beam coupling system and pumping
Light beam coupling system adjusts seed light and pump light, until injecting quasi-three-level gain medium in seed light and pump light
The fluorescence distribution center superposition producing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049106.6A CN106356707A (en) | 2016-11-25 | 2016-11-25 | Optical path adjusting device and method of quasi-three-level laser amplifying system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611049106.6A CN106356707A (en) | 2016-11-25 | 2016-11-25 | Optical path adjusting device and method of quasi-three-level laser amplifying system |
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| CN106356707A true CN106356707A (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611049106.6A Pending CN106356707A (en) | 2016-11-25 | 2016-11-25 | Optical path adjusting device and method of quasi-three-level laser amplifying system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445003A (en) * | 2019-08-27 | 2019-11-12 | 南昌航空大学 | A kind of plano-concave laser cavity list light path alignment apparatus and method based on Gaussian beam |
| CN110854661A (en) * | 2019-08-16 | 2020-02-28 | 中国电子科技集团公司第十一研究所 | Wavefront improvement method and system for end-pump slab solid-state laser |
| CN113805128A (en) * | 2020-06-15 | 2021-12-17 | 国仪量子(合肥)技术有限公司 | Automatic light path adjusting method and device for optical detection magnetic resonance spectrometer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020186455A1 (en) * | 2001-06-06 | 2002-12-12 | Ketteridge Peter A. | Optical composite ion/host crystal gain elements |
| CN102510000A (en) * | 2011-12-29 | 2012-06-20 | 苏州德龙激光有限公司 | High-gain double-stroke traveling-wave amplifier for picosecond laser pulse amplification |
| CN102637994A (en) * | 2012-04-18 | 2012-08-15 | 清华大学 | Device and method for controlling quality of laser beam |
| CN202678714U (en) * | 2012-06-21 | 2013-01-16 | 福州高意通讯有限公司 | High-power pulse laser |
| CN105048270A (en) * | 2015-07-13 | 2015-11-11 | 山东大学 | Laser amplifier based on lithium niobate crystals and application thereof |
| CN206195144U (en) * | 2016-11-25 | 2017-05-24 | 中国工程物理研究院应用电子学研究所 | Accurate three -level laser amplifier system light path adjustment device |
-
2016
- 2016-11-25 CN CN201611049106.6A patent/CN106356707A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020186455A1 (en) * | 2001-06-06 | 2002-12-12 | Ketteridge Peter A. | Optical composite ion/host crystal gain elements |
| CN102510000A (en) * | 2011-12-29 | 2012-06-20 | 苏州德龙激光有限公司 | High-gain double-stroke traveling-wave amplifier for picosecond laser pulse amplification |
| CN102637994A (en) * | 2012-04-18 | 2012-08-15 | 清华大学 | Device and method for controlling quality of laser beam |
| CN202678714U (en) * | 2012-06-21 | 2013-01-16 | 福州高意通讯有限公司 | High-power pulse laser |
| CN105048270A (en) * | 2015-07-13 | 2015-11-11 | 山东大学 | Laser amplifier based on lithium niobate crystals and application thereof |
| CN206195144U (en) * | 2016-11-25 | 2017-05-24 | 中国工程物理研究院应用电子学研究所 | Accurate three -level laser amplifier system light path adjustment device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854661A (en) * | 2019-08-16 | 2020-02-28 | 中国电子科技集团公司第十一研究所 | Wavefront improvement method and system for end-pump slab solid-state laser |
| CN110445003A (en) * | 2019-08-27 | 2019-11-12 | 南昌航空大学 | A kind of plano-concave laser cavity list light path alignment apparatus and method based on Gaussian beam |
| CN113805128A (en) * | 2020-06-15 | 2021-12-17 | 国仪量子(合肥)技术有限公司 | Automatic light path adjusting method and device for optical detection magnetic resonance spectrometer |
| CN113805128B (en) * | 2020-06-15 | 2024-06-18 | 国仪量子技术(合肥)股份有限公司 | Automatic optical path adjusting method and device for optical detection magnetic resonance spectrometer |
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Application publication date: 20170125 |