CN105977778A - Fiber laser output head - Google Patents
Fiber laser output head Download PDFInfo
- Publication number
- CN105977778A CN105977778A CN201610489153.6A CN201610489153A CN105977778A CN 105977778 A CN105977778 A CN 105977778A CN 201610489153 A CN201610489153 A CN 201610489153A CN 105977778 A CN105977778 A CN 105977778A
- Authority
- CN
- China
- Prior art keywords
- optical
- fiber laser
- laser delivery
- delivery
- lens barrel
- 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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
- H01S3/10015—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by monitoring or controlling, e.g. attenuating, the input signal
-
- 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
- H01S3/10061—Polarization control
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a fiber laser output head, and the laser output head comprises a collimation and beam expanding lens cone for fixing input fibers, a half-wave plate located at an emergent end of the collimation and beam expanding lens cone, a polarized beam-splitting lens which is located at the other side, opposite to the collimation and beam expanding lens cone, of the half-wave plate, a photoelectric detector which is located at a side edge of the collimation and beam expanding lens cone, and an output lens cone which is located at an emergent end of the polarized beam-splitting lens. According to the embodiment of the invention, the output head integrates the functions: collimation and beam expanding, polarization control and photoelectric monitoring and early warning, achieves the real-time monitoring of a laser output state, does not need to split an output beam, is simple in structure, and is convenient to disassemble, assemble and maintain.
Description
Technical field
The present invention relates to laser technology field, particularly to a kind of high-power optical-fiber laser delivery.
Background technology
Monochromaticity is good, divergence is minimum, brightness advantages of higher owing to having for laser, and optical fiber laser has light
The features such as beam quality is good, light-light conversion efficiency height, little, non-maintaining, the high stability of volume, are widely used
In industry, medical treatment and defense technology field.
Along with the development of Fiber laser technology, the power of optical fiber laser output is more and more higher, and Gao Gong
The optical-fiber laser output of rate is it is generally required to amplify through multiple power levels, export from laser after collimating, expanding
Head outgoing.Along with the continuous lifting of output, the requirement to laser output is more and more higher, and optical fiber
End face reflection, operating power are too high, and optical loss etc. all can affect the quality of final outgoing laser beam.
Additionally, practical application also needs to laser real-time Transmission monitoring state.But there is no a kind of optical fiber at present
Laser delivery device, it is possible to achieve the monitoring of collimator and extender, Polarization Control, real-time opto-electronic and early warning are multi-functional
Integration.
In view of above technical problem, a kind of optical-fiber laser delivery need to be provided, to solve prior art exists
Above-mentioned technical problem.
Summary of the invention
Based on this, for above-mentioned technical problem, embodiments provide collection collimator and extender, Polarization Control,
The miniature fiber laser delivery device of monitoring and early warning one in real time.
In order to realize foregoing invention purpose, embodiments provide a kind of optical-fiber laser delivery,
Described laser delivery includes the collimator and extender lens barrel of fixing input optical fibre, is positioned at described collimator and extender lens barrel and goes out
Penetrate the half-wave plate of end, be positioned at the described half-wave plate polarization beam splitting rib relative to described collimator and extender lens barrel opposite side
Mirror, it is positioned at the photodetector of described polarization beam splitter prism side, and is placed in described polarization beam splitter prism and goes out
Penetrate the output lens barrel of end.
In a kind of optical-fiber laser delivery that an embodiment of the present invention provides, described laser delivery also wraps
Include delivery pedestal, and the input optical fibre protection cylinder being fixed on described delivery pedestal.
In a kind of optical-fiber laser delivery that an embodiment of the present invention provides, described laser delivery also wraps
Including the base being placed in described delivery base upper end, described collimator and extender lens barrel is cylinder, and by standard
DS bundle lens barrel fixture is fixed on described base.
In a kind of optical-fiber laser delivery that an embodiment of the present invention provides, described collimator and extender lens barrel presss from both sides
Tool includes upper and lower two semicircle aluminium blocks, and described aluminium block is fixed by screws in described base.
In a kind of optical-fiber laser delivery that an embodiment of the present invention provides, described photodetector passes through
Photodetector fixture is fixed on described base, and described photodetector fixture is by screw with described base even
Connect.
In a kind of optical-fiber laser delivery that an embodiment of the present invention provides, described photodetector upper cover
It is provided with for blocking reflection light, and thin piece can moved relative to described photodetector.
In a kind of optical-fiber laser delivery that an embodiment of the present invention provides, described thin piece is fixed on described
On photodetector fixture, and described thin piece can rotate relative to described photodetector.
In a kind of optical-fiber laser delivery that an embodiment of the present invention provides, described polarization beam splitter prism leads to
Crossing ultraviolet glue to be bonded on aluminum sole piece, described aluminum sole piece is placed on described base.
In a kind of optical-fiber laser delivery that an embodiment of the present invention provides, the described built-in window of output lens barrel
Mouth mirror sheet, and described lens surface is coated with the anti-reflection film of corresponding optical maser wavelength.
In a kind of optical-fiber laser delivery that an embodiment of the present invention provides, described input optical fibre protection cylinder
And the faying face between described delivery pedestal and between output lens barrel and described delivery pedestal arranges close
Seal.
An embodiment of the present invention provide optical-fiber laser delivery, gathered collimator and extender, Polarization Control,
The functions such as photoelectric monitoring early warning, it is achieved that the real-time monitoring of laser output condition, it is not necessary to output beam is entered
Row beam splitting, and simple in construction, it is simple to dismounting is safeguarded.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in embodiment being described below
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of optical-fiber laser delivery that an embodiment of the present invention provides；
Fig. 2 is that the one that an embodiment of the present invention provides is entered along optical-fiber laser delivery shown in Fig. 1 along B-B
The sectional view of row section；
Fig. 3 be an embodiment of the present invention provide a kind of optical-fiber laser delivery in photodetector and
The structural representation of assembly.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, real with concrete below in conjunction with accompanying drawing
Executing mode, embodiment of the present invention is described further in detail.It should be appreciated that in this specification
The detailed description of the invention described is only used to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1 and Fig. 2, an embodiment of the present invention provides a kind of optical-fiber laser delivery (sign),
This laser delivery includes the collimator and extender lens barrel 3 of fixing input optical fibre (not shown), is positioned at collimator and extender mirror
Cylinder 3 exit ends half-wave plate 6, be positioned at the half-wave plate 6 polarization beam splitting relative to collimator and extender lens barrel 3 opposite side
Prism 7, it is positioned at the photodetector 8 of polarization beam splitter prism 7 side, and is placed in polarization beam splitter prism 7 and goes out
Penetrate the output lens barrel 9 of end.
Laser delivery also includes that delivery pedestal 2 and the output optical fibre being fixed on delivery pedestal 2 are protected
Casing 1.
Delivery pedestal 2 entirety is rectangular-shaped, and its upper end is installed on base 5.
Output optical fibre protection cylinder 1 is overall cylindrical, is fixed on one end of delivery pedestal 2, input optical fibre
Being sealed by output optical fibre protection cylinder 1 and be fixed in collimator and extender lens barrel 3, output optical fibre protection cylinder 1 is used for
Introduce input optical fibre and electrical signal line is drawn in protection.
Sealing ring is placed in faying face groove milling between output optical fibre protection cylinder 1 and delivery pedestal 2 (do not scheme
Show), to prevent dust from entering in output optical fibre protection cylinder 1.
Collimator and extender lens barrel 3 entirety is cylindrical shape, is fixed on base 5 by collimator and extender lens barrel fixture 4
On.
Collimator and extender lens barrel fixture 4 includes the most upper and lower two semicircle aluminium blocks (sign), and semicircle aluminium block will
Collimator and extender lens barrel 3 is clamped, and by screw (sign), collimator and extender lens barrel 3 is fixed on the above-mentioned end
On seat 5.
Half-wave plate 6 is fixed in wave plate frame (sign), is positioned at the exit end of collimator and extender lens barrel 3, can
By rotatable halfwave plate 6 make the overwhelming majority light transmission polarization beam splitter prism 7 from outgoing mirror outgoing, a little portion
The light dividing polarization direction vertical enters photodetector 8 from polarization beam splitter prism 7 offside reflection as monitoring light,
Thus realize the monitoring of the real-time status to light.
Please join shown in Fig. 3, photodetector 8 is installed on photodetector fixture 10, and photodetector presss from both sides
Tool 10 is fixed on the base 5 on polarization beam splitter prism 7 side by screw (sign).
It is covered with on photodetector 8 for blocking reflection light and can move relative to photodetector 8
Thin piece 10.This thin piece 10 is fixed on photodetector fixture 10, specifically can be fixed by screw etc..
Can rotate relative to photodetector 8 for thin piece 10, partial polarization beam splitter prism reflection light can be blocked,
The intensity of the monitoring light of photodetector 8 is incided in regulation, it is to avoid signal is saturated normal beyond photodetector
Performance scope.
Polarization beam splitter prism 7 is bonded on aluminum sole piece (sign) by ultraviolet glue, and this aluminum sole piece is put
On base 5.
Output lens barrel 9 be fixed on delivery pedestal 2 relative to input optical fibre protection cylinder 1 the other end, its with
Faying face groove milling between delivery pedestal 2 is placed sealing ring (not shown), to prevent dust from entering output
Lens barrel 9.
Built-in window lens (not shown) in output lens barrel 9, to prevent dust from entering output lens barrel.This window
Lens surface is coated with the anti-reflection film of corresponding optical maser wavelength, reflective to prevent.
Laser fiber enters collimator and extender lens barrel 3, by the standard of collimator and extender lens barrel 3 by fiber optic protection cylinder 1
DS bundle, is converted into the collimated laser beam with certain spot size of space injection by fiber end face emergent light；
This collimated laser beam enters polarization beam splitter prism 7 by half-wave plate 6 so that overwhelming majority light beam is through polarization point
Beam prism 7 forms single polarized light and is exported by exporting lens barrel 9, makes sub-fraction by rotatable halfwave plate 6
The vertical light beam in polarization direction enters photodetector from the offside reflection of polarization beam splitter prism 7 as monitoring light
8, regulate the monitoring light intensity incided on photodetector 8, photodetector 8 for thin piece 11 by regulation
The optical signal of collection is changed into the signal of telecommunication and is supplied to control circuit plate, if the signal of telecommunication amplitude monitored is too low,
I.e. it is judged as abnormality, starts bolt down procedure flow process step by step, and sent alarm command by control circuit plate,
User is reminded in display on panel, thus realizes monitoring function.
An embodiment of the present invention provide optical-fiber laser delivery, gathered collimator and extender, Polarization Control,
The functions such as photoelectric monitoring early warning, it is achieved that the real-time monitoring of laser output condition, it is not necessary to output beam is entered
Row beam splitting, and simple in construction, it is simple to dismounting is safeguarded.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The announcement of book and teaching according to the above description, those skilled in the art in the invention can also be to above-mentioned
Embodiment carries out suitable change and amendment.Therefore, the invention is not limited in disclosed and described above
Some modifications and changes of the present invention be should also be as falling into the guarantor of the claim of the present invention by detailed description of the invention
In the range of protecting.Although additionally, employ some specific terms in this specification, but these terms are simply
Facilitate explanation, the present invention is not constituted any restriction.
Claims (10)
1. an optical-fiber laser delivery, it is characterised in that: described laser delivery includes fixing input optical fibre
Collimator and extender lens barrel, be positioned at the half-wave plate of described collimator and extender lens barrel exit end, be positioned at described half-wave plate phase
For described collimator and extender lens barrel opposite side polarization beam splitter prism, be positioned at described polarization beam splitter prism side
Photodetector, and it is placed in the output lens barrel of described polarization beam splitter prism exit end.
Optical-fiber laser delivery the most according to claim 1, it is characterised in that: described laser delivery
Also include delivery pedestal, and the input optical fibre protection cylinder being fixed on described delivery pedestal.
Optical-fiber laser delivery the most according to claim 2, it is characterised in that: described laser delivery
Also including the base being placed in described delivery base upper end, described collimator and extender lens barrel is cylinder, and passes through
Collimator and extender lens barrel fixture is fixed on described base.
Optical-fiber laser delivery the most according to claim 3, it is characterised in that: described collimator and extender mirror
Collet chuck tool includes upper and lower two semicircle aluminium blocks, and described aluminium block is fixed by screws in described base.
Optical-fiber laser delivery the most according to claim 4, it is characterised in that: described photodetector
Being fixed on described base by photodetector fixture, described photodetector fixture is by screw and the described end
Seat connects.
Optical-fiber laser delivery the most according to claim 5, it is characterised in that: described photodetector
On be covered with for blocking reflection light, and thin piece can moved relative to described photodetector.
Optical-fiber laser delivery the most according to claim 6, it is characterised in that: described thin piece is fixed on
On described photodetector fixture, and described thin piece can rotate relative to described photodetector.
Optical-fiber laser delivery the most according to claim 3, it is characterised in that: described polarization beam splitting rib
Mirror is bonded on aluminum sole piece by ultraviolet glue, and described aluminum sole piece is placed on described base.
Optical-fiber laser delivery the most according to claim 8, it is characterised in that: in described output lens barrel
Put window lens, and described lens surface is coated with the anti-reflection film of corresponding optical maser wavelength.
Optical-fiber laser delivery the most according to claim 9, it is characterised in that: described input optical fibre
Faying face between protection cylinder and described delivery pedestal and between output lens barrel and described delivery pedestal
Sealing ring is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610489153.6A CN105977778A (en) | 2016-06-28 | 2016-06-28 | Fiber laser output head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610489153.6A CN105977778A (en) | 2016-06-28 | 2016-06-28 | Fiber laser output head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105977778A true CN105977778A (en) | 2016-09-28 |
Family
ID=57019523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610489153.6A Pending CN105977778A (en) | 2016-06-28 | 2016-06-28 | Fiber laser output head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105977778A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112764165A (en) * | 2021-01-12 | 2021-05-07 | 北京凯普林光电科技股份有限公司 | Adjustable optical fiber polarization collimating lens |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135668A (en) * | 2011-03-17 | 2011-07-27 | 广州中国科学院工业技术研究院 | Optical fiber laser and collimator thereof |
| CN102183823A (en) * | 2011-05-10 | 2011-09-14 | 南京邮电大学 | Optical fiber collimator |
| CN103399381A (en) * | 2013-07-30 | 2013-11-20 | 深圳市大族激光科技股份有限公司 | Optical fiber laser outputting head |
| CN203734128U (en) * | 2014-01-15 | 2014-07-23 | 光越科技(深圳)有限公司 | Large-power laser output head |
| CN104882770A (en) * | 2015-06-10 | 2015-09-02 | 北京工业大学 | Fiber laser output head having light beam focusing characteristic and power monitoring function |
| CN105390917A (en) * | 2015-12-08 | 2016-03-09 | 南京先进激光技术研究院 | Compact and stable high-peak-power optical fiber output laser |
| CN205863637U (en) * | 2016-06-28 | 2017-01-04 | 南京先进激光技术研究院 | A kind of optical-fiber laser delivery |
-
2016
- 2016-06-28 CN CN201610489153.6A patent/CN105977778A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135668A (en) * | 2011-03-17 | 2011-07-27 | 广州中国科学院工业技术研究院 | Optical fiber laser and collimator thereof |
| CN102183823A (en) * | 2011-05-10 | 2011-09-14 | 南京邮电大学 | Optical fiber collimator |
| CN103399381A (en) * | 2013-07-30 | 2013-11-20 | 深圳市大族激光科技股份有限公司 | Optical fiber laser outputting head |
| CN203734128U (en) * | 2014-01-15 | 2014-07-23 | 光越科技(深圳)有限公司 | Large-power laser output head |
| CN104882770A (en) * | 2015-06-10 | 2015-09-02 | 北京工业大学 | Fiber laser output head having light beam focusing characteristic and power monitoring function |
| CN105390917A (en) * | 2015-12-08 | 2016-03-09 | 南京先进激光技术研究院 | Compact and stable high-peak-power optical fiber output laser |
| CN205863637U (en) * | 2016-06-28 | 2017-01-04 | 南京先进激光技术研究院 | A kind of optical-fiber laser delivery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112764165A (en) * | 2021-01-12 | 2021-05-07 | 北京凯普林光电科技股份有限公司 | Adjustable optical fiber polarization collimating lens |
| CN112764165B (en) * | 2021-01-12 | 2023-04-11 | 北京凯普林光电科技股份有限公司 | Adjustable optical fiber polarization collimating lens |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106159663B (en) | A kind of output of large-power optical fiber laser alignment and sampling monitoring integrated device | |
| CN208062488U (en) | A kind of semiconductor laser beam merging apparatus | |
| US20150346480A1 (en) | Grating-type tunable filter | |
| CN107275920B (en) | A kind of semiconductor laser slow axis collimation clamp assembly and its application method | |
| CN205551799U (en) | Take laser instrument laser beam machining head of pilot light | |
| US20150036332A1 (en) | Display illuminating module | |
| CN102566235A (en) | Light source apparatus, light source generation method and laser projector containing light source apparatus | |
| CN103293650A (en) | Light conversion device, backlight module and display device | |
| CN106154422A (en) | A kind of isolated optical fiber polarization controller | |
| CN105977778A (en) | Fiber laser output head | |
| CN205863637U (en) | A kind of optical-fiber laser delivery | |
| CN218585050U (en) | Fixing clamp, optical fiber fixing device, laser coupling system and laser system | |
| CA2180711A1 (en) | Optical Device Having an Optical Film with an Incident Angle Thereupon Variable | |
| CN210534498U (en) | Micro-integrated high-brightness entanglement source system | |
| WO2021135960A1 (en) | Polarization splitting device, polarization splitting structure and projection device | |
| CN103424868A (en) | Laser coupling unit, laser coupling module and laser light source module | |
| CN107144948A (en) | Spatial light modulator coupling device based on triangular reflector | |
| CN208384177U (en) | A kind of novel optical transceiver module | |
| CN214251988U (en) | Novel gas chamber | |
| CN111413812A (en) | Polarization-independent optical fiber acousto-optic device | |
| CN103900689B (en) | Acoustooptic modulation molded breadth spectral coverage hyperchannel polarized monochromatic light source | |
| CN206906686U (en) | Spatial light modulator coupling device based on triangular reflector | |
| CN112987324A (en) | Optical splitter based on liquid crystal polarization grating | |
| CN203881442U (en) | Acousto-optic modulation type wide-spectrum multichannel polarized monochromatic light source | |
| CN103605185B (en) | Kilowatt-level high-isolation collimating-type optical isolator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20160928 |