CN206640105U - Laser protector and laser system - Google Patents
Laser protector and laser system Download PDFInfo
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- CN206640105U CN206640105U CN201621490190.0U CN201621490190U CN206640105U CN 206640105 U CN206640105 U CN 206640105U CN 201621490190 U CN201621490190 U CN 201621490190U CN 206640105 U CN206640105 U CN 206640105U
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- laser
- optical fiber
- housing
- photo
- conversion element
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Abstract
The utility model provides a kind of laser protector and laser system, and laser system includes laser, optical fiber and laser protector, and laser includes controller, and controller is for controlling laser by laser from optical fiber output；Laser protector includes housing and photodiode, and optical fiber duct is provided with housing, and optical fiber is placed in optical fiber duct, and photodiode is fixed in housing, and photodiode detects to optical fiber, and photodiode is to controller output feedback signal.Optical fiber is monitored by photodiode, so as to effectively protect optical fiber laser, while it is easy to conveniently install, and unrelated with fiber type, therefore also greatly improves versatility.
Description
Technical field
It the utility model is related to field of lasers, more particularly to the protection device of superpower laser and high-power laser
System, and the application method of laser protector and laser system.
Background technology
Laser occupies extremely important status in laser application at present, available for material processing, laser ranging, laser
Spectroscopy, laser medicine.Laser chemical industry, laser isotope separation and laser fusion etc..Especially superpower laser, Gao Gong
The usual Output optical power of rate optical fiber laser is more than 10 watts, and peak power reaches a kilowatt rank, when there is optical fiber fusion quality not
Situations such as good, fiber end face damage, pollution, optical fiber burns since impaired loci, if closing laser not in time, high power swashs
Light persistently exports, and causes whole fiber link to be burnt.
A kind of existing protected mode is typically superpower laser to be provided with danger button, when there is optical fiber combustion
, it is necessary to which operating personnel, which run through button, closes down laser during burning.In 10MW/cm2During power, optical fiber burning velocity is about per second
0.8 meter, burning velocity is accelerated with the rising of power, so needing operating personnel to be swift in response, or even needs extra configuration
One people keeps an eye on laser.
During another protected mode, increase a coupler and photodiode in the optical path, for monitoring along light path
The light intensity of return, when optical fiber burns, return loss can reduce, that is, the light returned becomes strong, and light intensity exceedes certain threshold value, triggers laser
Device shutdown protection.The program realizes automatic closing, and major defect is the increase in coupler, cost increase, while adds light
Loss and linkage length in road, produce nonlinear effect.Further, since the output optical fibre wide variety of optical fiber laser, is needed
With corresponding optical fiber production coupler, some optical fiber are not appropriate for producing coupler.
The content of the invention
First purpose of the present utility model is to provide a kind of laser protector of achievable automatic protection.
Second purpose of the present utility model is to provide a kind of laser system of achievable automatic protection.
In order to realize the first purpose of the present utility model, the utility model provides a kind of laser protector, its feature
It is, including housing and photo-electric conversion element, housing are made by light-proof material, housing is used to place optical fiber, and photoelectricity turns
Change element to be fixed in housing, photo-electric conversion element is used for detecting from the light of fiber exit, and photo-electric conversion element is used for
Output photoelectric signal.
Further scheme is that optical fiber duct is provided with housing, and optical fiber duct is used to place optical fiber.
Further scheme is that optical fiber duct is provided with through hole, and photo-electric conversion element is set in through-holes.
Further scheme is that the bottom wall of optical fiber duct is plane, and through hole is penetratingly arranged on bottom wall.
Further scheme is that housing includes base and upper lid, and base and upper lid surround accommodating chamber, prolonged along optical fiber duct
Stretch direction and upper lid is provided with optical-fibre channel.
In order to realize the second purpose of the present utility model, the utility model provides a kind of laser system, including laser, light
Fine and laser protector；Laser includes controller, and controller is used to controlling laser by laser from optical fiber output；Laser
Device protection device includes housing and photo-electric conversion element, and housing is made by light-proof material, and housing is used to place optical fiber, light
Electric transition element is fixed in housing, and photo-electric conversion element is used for being detected from the light of fiber exit, photo-electric conversion element
For output photoelectric signal.
From such scheme, by setting optical fiber duct and optical fiber being arranged in optical fiber duct, when there is fused fiber splice matter
When measuring bad, fiber end face damage, pollution, optical fiber burns since impaired loci, when burning point passes through photodiode
When, larger photoelectric current will be produced, photodiode triggers shutdown protection, no longer output high-power laser, optical fiber to controller
Burning stops immediately, avoids optical fiber laser from damaging comprehensively.And photodiode is arranged on the bottom wall of plane and with lid
Cover, it is easily installed and facilitates the installation of optical fiber, while this case is unrelated with fiber type, and the protection device structure of this case changes
Enter and be not related to former laser, therefore also greatly improve versatility, and the housing being made using light-proof material is advantageous to light
The set location optimization of electric transition element, it is also beneficial to improve monitoring accuracy, automatic guarantor well is provided for rear class laser
Shield.
Brief description of the drawings
Fig. 1 is the structure principle chart of this laser system embodiment.
Fig. 2 is the enlarged drawing at A in Fig. 1.
Fig. 3 is the structure chart after being covered on this laser protector embodiment is omitted.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment
Reference picture 1, Fig. 2 and Fig. 3, Fig. 1 are the structure principle charts of laser system, and Fig. 2 is that i.e. laser is protected at A in Fig. 1
The enlarged drawing of device 2, Fig. 3 are the structure charts of laser protector.Laser system includes laser 1, optical fiber 3 and laser and protected
Protection unit 2, laser 1 include controller 11, and controller 11 is used to control laser so that the laser of laser output is from optical fiber
3 outputs.
Laser protector 2 includes housing and photo-electric conversion element 24, and housing includes base 22 and covered in base 22
The upper lid 21 of top, base 22 and upper lid 21 are made by light-proof material, and base 22 and upper lid 21 surround accommodating chamber, then
So that light is provided with boss on base 22, optical fiber duct 23, optical fiber duct is offered on boss more in the entrance accommodating chamber of difficulty
23 bottom wall is set in plane, the upper ground of lid 23 is provided with optical-fibre channel along the bearing of trend of optical fiber duct 23, upper lid 21 can be just
Optical-fibre channel sets the U-shaped escape groove of downwardly facing opening on two side, and optical fiber 3 is placed in optical fiber duct 23 and is located at optical-fibre channel
After upper, even if upper lid 21 nor affects on optical fiber 3 and arranged after covering on base 22, while it can keep not extraneous in accommodating chamber
Light enters.Through hole 25 is penetratingly offered in bottom wall, photo-electric conversion element 24 is arranged in through hole 25, then photoelectric conversion element
Part 24 is located at the lower section of optical fiber 3 and optical fiber 3 can be detected.Preferably, photo-electric conversion element 24 can use photodiode
The light of fiber exit is detected, certain photo-electric conversion element can also be arranged in housing anywhere, as long as can
The purpose of this utility model can be achieved in the light for detecting fiber exit.Further, in order to ensure the light tight of accommodating chamber,
The link position of housing and base can be optimized, such as：Optical fiber duct on base runs through the setting of base bilateral wall, upper lid
Area can be in set smaller, and upper lid can cover can be achieved purpose in base close to the part of optical fiber duct, furthermore, upper lid
The opening of optical fiber duct can also be only covered, these, which change, can be achieved the purpose of this utility model, in the utility model
Protection domain within.
During to fiber-optic monitoring, if there is optical fiber fusion quality is bad, fiber end face damages, when pollution, optical fiber
It will be burnt since impaired loci, when burning point passes through photo-electric conversion element, larger photoelectric current will be produced, photoelectric conversion element
Part causes controller triggering shutdown protection to controller output feedback signal, then immediately closes off laser, no longer output is high
Power laser, optical fiber burning stop, being damaged comprehensively so as to be effectively prevented from optical fiber laser immediately.
The application method embodiment of laser system：
Applied to above-mentioned laser system, the application method of the present embodiment includes：
Optical fiber is placed on optical fiber duct and in optical-fibre channel；
Photo-electric conversion element from the light of fiber exit to detecting；
Photo-electric conversion element is to controller output photoelectric signal；
Controller controls laser operation according to photosignal or stopped.
Therefore installed using the cooperation of base and upper lid, it is easy to the installation for facilitating optical fiber, while this case and optical fiber
Type is unrelated, and the protection device structure of this case is improved and is not related to former laser, therefore also greatly improves versatility, and using not
The housing that light transmissive material is made is advantageous to improve monitoring accuracy, and automatic protection well is provided for rear class laser.
Claims (8)
1. laser protector, it is characterised in that including：
Housing, the housing are made by light-proof material, and the housing is used to place optical fiber；
Photo-electric conversion element, the photo-electric conversion element are fixed in the housing, and the photo-electric conversion element is used for from institute
The light for stating fiber exit is detected, and the photo-electric conversion element is used for output photoelectric signal.
2. laser protector according to claim 1, it is characterised in that：
Optical fiber duct is provided with the housing, the optical fiber duct is used to place the optical fiber.
3. laser protector according to claim 2, it is characterised in that：
The optical fiber duct is provided with through hole, and the photo-electric conversion element is arranged in the through hole.
4. laser protector according to claim 3, it is characterised in that：
The bottom wall of the optical fiber duct is plane, and the through hole is penetratingly arranged on the bottom wall.
5. according to the laser protector described in any one of claim 2 to 4, it is characterised in that：
The housing includes base and upper lid, and the base and the upper lid surround accommodating chamber, along the optical fiber duct extension side
Optical-fibre channel is provided with to through the upper lid.
6. laser system, it is characterised in that including laser, optical fiber and laser protector；
The laser includes controller, and the controller is used to controlling the laser by laser from the optical fiber output；
Laser protector includes：
Housing, the housing are made by light-proof material, and the housing is used to place the optical fiber；
Photo-electric conversion element, the photo-electric conversion element are fixed in the housing, and the photo-electric conversion element is used for from institute
The light for stating fiber exit is detected, and the photo-electric conversion element is used for output photoelectric signal.
7. laser system according to claim 6, it is characterised in that：
Optical fiber duct is provided with the housing, the optical fiber duct is used to place the optical fiber.
8. laser system according to claim 7, it is characterised in that：
The housing includes base and upper lid, and the base and the upper lid surround accommodating chamber, along the optical fiber duct extension side
Optical-fibre channel is provided with to through the upper lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621490190.0U CN206640105U (en) | 2016-12-30 | 2016-12-30 | Laser protector and laser system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621490190.0U CN206640105U (en) | 2016-12-30 | 2016-12-30 | Laser protector and laser system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206640105U true CN206640105U (en) | 2017-11-14 |
Family
ID=60261782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621490190.0U Active CN206640105U (en) | 2016-12-30 | 2016-12-30 | Laser protector and laser system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206640105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602390A (en) * | 2016-12-30 | 2017-04-26 | 珠海光库科技股份有限公司 | Laser protection device, laser system, and method of using laser protection device and laser system |
| CN115241727A (en) * | 2022-09-23 | 2022-10-25 | 济南邦德激光股份有限公司 | Laser control method, laser and laser system |
-
2016
- 2016-12-30 CN CN201621490190.0U patent/CN206640105U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602390A (en) * | 2016-12-30 | 2017-04-26 | 珠海光库科技股份有限公司 | Laser protection device, laser system, and method of using laser protection device and laser system |
| CN115241727A (en) * | 2022-09-23 | 2022-10-25 | 济南邦德激光股份有限公司 | Laser control method, laser and laser system |
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