CN114755770B - Automatic dimming system and dimming method for laser coupling optical fiber - Google Patents
Automatic dimming system and dimming method for laser coupling optical fiber Download PDFInfo
- Publication number
- CN114755770B CN114755770B CN202210528745.XA CN202210528745A CN114755770B CN 114755770 B CN114755770 B CN 114755770B CN 202210528745 A CN202210528745 A CN 202210528745A CN 114755770 B CN114755770 B CN 114755770B
- Authority
- CN
- China
- Prior art keywords
- collimating lens
- optical fiber
- laser
- image sensor
- automatic dimming
- 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.)
- Active
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 50
- 230000008878 coupling Effects 0.000 title claims abstract description 20
- 238000010168 coupling process Methods 0.000 title claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000003384 imaging method Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 230000033001 locomotion Effects 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 5
- 230000002238 attenuated effect Effects 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 7
- 238000005286 illumination Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
- G02B6/4221—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements involving a visual detection of the position of the elements, e.g. by using a microscope or a camera
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
- B05C5/0212—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/12—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed after the application
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses an automatic dimming system and a dimming method of a laser coupling optical fiber, which are used for adjusting an LD collimating lens to adjust laser beams, and comprise the following steps: the three-dimensional adjusting unit is used for adjusting the position of the LD collimating lens in a three-dimensional space; the imaging unit comprises a converging element, an optical fiber panel and an optical fiber collimating lens which are sequentially arranged; the beam splitting unit is used for splitting the laser beam collimated by the optical fiber collimating lens into two beams; the detection unit comprises a position sensitive detector, an image sensor and a system processor, wherein the position sensitive detector and the image sensor are respectively used for receiving light spots of two beams of light. The automatic dimming system of the laser coupling optical fiber realizes the respective adjustment of the LD rotating shaft lens in the laser beam transmission direction and the direction perpendicular to the laser beam transmission direction by detecting the position of the light spot and the size of the light spot, and ensures the accuracy of the position of the LD collimating lens. The invention has simple structure, convenient adjustment, reduced complexity of the system and improved dimming efficiency.
Description
Technical Field
The invention relates to the technical field of semiconductor lasers, in particular to an automatic dimming system and a dimming method of a laser coupling optical fiber.
Background
Semiconductor lasers have been rapidly developed in recent years due to their small size, long lifetime, wide coverage wavelength range, and the like. Along with a series of application drives such as laser precision machining, laser display, biomedical treatment, laser plate making and direct writing imaging, the power and the wavelength of the laser diode are greatly expanded, and the application is more and more extensive.
Because of the difference of manufacturing processes, PN junction luminous positions of different lasers are different, so that the emergent angles of laser beams after being collimated by an LD collimating lens are obviously different, when light with different emergent angles is coupled into an optical fiber through a converging lens, the angle directivity can influence the focused spot size and the optical fiber coupling efficiency, in order to correct and compensate the angle deviation of the laser beams, a reflecting mirror is generally arranged in an optical path for angle adjustment, the degree of freedom of the reflecting mirror is large, the rotating angle needs to be adjusted, and the adjustment is difficult to control in implementation operation and is complex. Accordingly, a dimming system is needed to solve the above problems.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic dimming system of a laser coupling optical fiber, which has the advantages of simple structure, convenient adjustment and high efficiency.
In order to solve the above problems, the present invention provides an automatic dimming system of a laser coupling optical fiber for adjusting an LD collimating lens to adjust a laser beam, comprising:
the three-dimensional adjusting unit is used for adjusting the position of the LD collimating lens in a three-dimensional space;
the imaging unit comprises a converging element, an optical fiber panel and an optical fiber collimating lens which are sequentially arranged, wherein the converging element is used for converging laser beams emitted by the LD collimating lens to the optical fiber panel, and the optical fiber collimating lens is used for collimating the laser beams emitted from the optical fiber panel;
the beam splitting unit is used for splitting the laser beam collimated by the optical fiber collimating lens into two beams;
the detection unit comprises a position sensitive detector, an image sensor and a system processor, wherein the three-dimensional adjusting unit, the position sensitive detector and the image sensor are electrically connected with the system processor, and the position sensitive detector and the image sensor are respectively used for receiving light spots of two beams of light; the system processor is used for adjusting the position of the LD collimating lens on a plane perpendicular to the transmission direction of the laser beam through the three-dimensional adjusting unit so as to adjust the position of a light spot on the position sensitive detector; the system processor is also used for adjusting the position of the LD collimating lens in the laser beam transmission direction through the three-dimensional adjusting unit so as to adjust the size of the light spot on the image sensor in the fast axis direction.
As a further improvement of the invention, the three-dimensional adjusting unit comprises a pneumatic suction nozzle and a three-dimensional movable adjusting frame, wherein the pneumatic suction nozzle is used for adsorbing the LD collimating lens, and the three-dimensional movable adjusting frame is connected with the pneumatic suction nozzle and is used for adjusting the position of the pneumatic suction nozzle in the three-dimensional space so as to adjust the position of the LD collimating lens in the three-dimensional space.
As a further improvement of the invention, the invention further comprises a dispensing mechanism for dispensing the LD collimating lens after the adjustment of the LD collimating lens is finished.
As a further improvement of the invention, the dispensing mechanism comprises a UV dispenser and a dispensing moving frame, the system controller is connected with the dispensing moving frame and drives the dispensing moving frame, the dispensing moving frame drives the UV dispenser, and the UV dispenser dispenses the edge of the LD collimating lens.
As a further improvement of the invention, the dispensing mechanism comprises a UV lamp and a UV lamp controller, wherein the UV lamp controller is connected with the UV lamp and drives the UV lamp to carry out light curing on the dispensing position.
As a further improvement of the present invention, a reflecting mirror is further provided between the LD collimating lens and the converging element, the reflecting mirror being configured to reflect the laser beam emitted from the LD collimating lens to the converging element.
As a further improvement of the invention, an attenuation sheet is arranged between the beam splitting unit and the image sensor, and one of the two beams of light enters the image sensor after being attenuated by the attenuation sheet.
As a further improvement of the invention, the beam splitting unit is a beam splitting mirror.
As a further development of the invention, the converging element is a converging lens.
The invention also provides an automatic dimming method of the laser coupling optical fiber, which is applied to the automatic dimming system of any one of the laser coupling optical fibers, and comprises the following steps:
s1, setting a step length of coarse adjustment and fine adjustment of a three-dimensional adjusting unit in the X, Y, Z direction, and setting a qualified range of coarse adjustment and fine adjustment of the light spot position on the position sensitive detector; setting a qualified range of the dimension of the fast axis direction of the light spot on the image sensor;
s2, the system processor coarsely adjusts the LD collimating lens on a plane perpendicular to the transmission direction of the laser beam through the three-dimensional adjusting unit so as to adjust the position of the light spot on the position sensitive detector to a coarse adjustment qualified range;
s3, the system processor coarsely adjusts the LD collimating lens in the laser beam transmission direction through the three-dimensional adjusting unit so as to adjust the size of the fast axis direction of the light spot on the image sensor to a qualified range;
and S4, the system processor finely adjusts the LD collimating lens on a plane perpendicular to the transmission direction of the laser beam through the three-dimensional adjusting unit so as to adjust the position of the light spot on the position sensitive detector to a fine adjustment qualified range.
The invention has the beneficial effects that:
the automatic dimming system of the laser coupling optical fiber realizes the respective adjustment of the LD rotating shaft lens in the laser beam transmission direction and the direction perpendicular to the laser beam transmission direction by detecting the position of the light spot and the size of the light spot, and ensures the accuracy of the position of the LD collimating lens. The invention has simple structure, convenient adjustment, reduced complexity of the system and improved dimming efficiency.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention, given by way of illustration only, together with the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of an automatic dimming system for laser-coupled optical fibers in an embodiment of the present invention;
fig. 2 is a flow chart of an automatic dimming method of a laser coupled fiber in an embodiment of the present invention.
Marking:
1. a laser diode; 2. an LD collimating lens; 3. a reflecting mirror; 4. a converging element; 5. an optical fiber panel; 6. an optical fiber collimating lens; 7. a beam splitting unit; 8. a position sensitive detector; 9. an attenuation sheet; 10. an image sensor.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
As shown in fig. 1, the preferred embodiment of the present invention discloses an automatic dimming system of a laser coupled optical fiber for adjusting an LD collimating lens 2 to adjust a laser beam, which includes a three-dimensional adjusting unit, an imaging unit, and a detecting unit.
The three-dimensional adjusting unit is used for adjusting the position of the LD collimating lens 2 in three-dimensional space. Optionally, the three-dimensional adjusting unit includes a pneumatic suction nozzle and a three-dimensional moving adjusting frame, the pneumatic suction nozzle is used for adsorbing the LD collimating lens 2, the three-dimensional moving adjusting frame is connected with the pneumatic suction nozzle and adjusts the position of the pneumatic suction nozzle in the three-dimensional space, and then adjusts the position of the LD collimating lens 2 in the three-dimensional space. The three-dimensional movement adjusting frame is controlled by motor driving and can translate along the X direction, the Y direction and the Z direction.
The imaging unit includes a condensing element 4, an optical fiber panel 5, and an optical fiber collimator lens 6, which are sequentially disposed, the condensing element 4 being configured to condense the laser beam emitted from the LD collimator lens 2 to the optical fiber panel 5, and the optical fiber collimator lens 6 being configured to collimate the laser beam emitted from the optical fiber panel 5. Optionally, the converging element 4 is a converging lens. The optical fiber panel 5 has an image transmission function, so that the dimming problem caused by the mechanical structure limitation is avoided.
The beam splitting unit 7 is used for splitting the laser beam collimated by the optical fiber collimating lens 6 into two beams. Alternatively, the beam splitting unit 7 is a beam splitter. The laser beam is partially transmitted and partially reflected after passing through the beam splitter to form two beams of light.
The detection unit comprises a position sensitive detector 8, an image sensor 10 and a system processor, wherein the three-dimensional adjustment unit, the position sensitive detector 8 and the image sensor 10 are electrically connected with the system processor, and the position sensitive detector 8 and the image sensor 10 are respectively used for receiving light spots of two beams of light; the system processor is used for adjusting the position of the LD collimating lens 2 on a plane perpendicular to the transmission direction of the laser beam through the three-dimensional adjusting unit so as to adjust the position of the light spot on the position sensitive detector 8; the system processor is further configured to adjust the position of the LD collimating lens 2 in the laser beam transmission direction by using the three-dimensional adjusting unit, so as to adjust the size of the fast axis direction of the light spot on the image sensor 10. Optionally, the system processor is further connected to a memory, through which data is stored.
The light beam emitted by the laser diode 1 has a certain divergence angle, the divergence angle is large and is a fast axis, and the light beam can be collimated by adjusting the position of the LD collimating lens 2 in the transmission direction of the laser beam.
The automatic dimming system of the laser coupling optical fiber realizes the respective adjustment of the LD rotating shaft lens in the laser beam transmission direction and the direction perpendicular to the laser beam transmission direction by detecting the position of the light spot and the size of the light spot, and ensures the accuracy of the position of the LD collimating lens. The invention has simple structure, convenient adjustment, reduced complexity of the system and improved dimming efficiency.
In some embodiments, the automatic dimming system of the laser coupled optical fiber further comprises a dispensing mechanism for dispensing the LD collimating lens 2 after the adjustment of the LD collimating lens 2 is finished, so as to fix the position of the LD collimating lens 2. Optionally, the dispensing mechanism includes a UV dispenser and a dispensing motion frame, the system controller is connected with the dispensing motion frame and drives the dispensing motion frame, the dispensing motion frame drives the UV dispenser, the UV dispenser dispenses the edge of the LD collimating lens 2, and after dispensing is completed, the dispensing motion frame removes the UV dispenser.
Further, the dispensing mechanism comprises a UV lamp and a UV lamp controller, wherein the UV lamp controller is connected with the UV lamp and drives the UV lamp to carry out light curing on the dispensing position. When the preset illumination time is reached, the system controller restarts the laser diode 1, confirms whether the position and the size of the light spot are OK, and after the OK is confirmed, the system controller controls the pneumatic suction nozzle to loosen and removes the pneumatic suction nozzle.
In one embodiment, a reflecting mirror 3 is further disposed between the LD collimating lens 2 and the converging element 4, and the reflecting mirror 3 is used for reflecting the laser beam emitted from the LD collimating lens 2 to the converging element 4. The method is used for reducing the system length and improving the integration level.
In some embodiments, an attenuation sheet 9 is further disposed between the beam splitting unit 7 and the image sensor 10, and one of the two beams of light enters the image sensor 10 after being attenuated by the attenuation sheet 9. The attenuation sheet 9 reduces the energy of the incident laser light, avoiding saturation of the image sensor 10. Alternatively, the image sensor 10 may be a CCD, CMOS, or the like.
As shown in fig. 2, the preferred embodiment of the present invention further discloses an automatic dimming method of a laser coupling optical fiber, which is applied to the automatic dimming system of the laser coupling optical fiber in the above embodiment, and includes the following steps:
s1, setting a step length of coarse adjustment and fine adjustment of a three-dimensional adjusting unit in the X, Y, Z direction, and setting a qualified range of coarse adjustment and fine adjustment of the light spot position on a position sensitive detector 8; setting a qualified range of the dimension of the fast axis direction of the light spot on the image sensor 10;
s2, the system processor coarsely adjusts the LD collimating lens 2 on a plane perpendicular to the transmission direction of the laser beam through the three-dimensional adjusting unit so as to adjust the position of the light spot on the position sensitive detector 8 to a coarse adjustment qualified range;
s3, the system processor coarsely adjusts the LD collimating lens 2 in the laser beam transmission direction through the three-dimensional adjusting unit so as to adjust the size of the light spot on the image sensor 10 in the fast axis direction to a qualified range;
s4, the system processor finely adjusts the LD collimating lens 2 on a plane perpendicular to the transmission direction of the laser beam through the three-dimensional adjusting unit so as to adjust the position of the light spot on the position sensitive detector 8 to a fine adjustment qualified range.
Further, the automatic dimming method of the laser coupling optical fiber in the invention further comprises the following steps:
after the position adjustment is completed, dispensing the LD collimating lens 2 by using a UV dispenser, and carrying out illumination curing on the dispensing position by using a UV lamp;
when the preset illumination time is reached, the system controller restarts the laser diode 1, confirms whether the position and the size of the light spot are OK, and after the OK is confirmed, the system controller controls the pneumatic suction nozzle to loosen and removes the pneumatic suction nozzle to finish dimming.
The above embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. An automatic dimming system for a laser coupled fiber for adjusting an LD collimating lens to adjust a laser beam, comprising:
the three-dimensional adjusting unit is used for adjusting the position of the LD collimating lens in a three-dimensional space;
the imaging unit comprises a converging element, an optical fiber panel and an optical fiber collimating lens which are sequentially arranged, wherein the converging element is used for converging laser beams emitted by the LD collimating lens to the optical fiber panel, and the optical fiber collimating lens is used for collimating the laser beams emitted from the optical fiber panel;
the beam splitting unit is used for splitting the laser beam collimated by the optical fiber collimating lens into two beams;
the detection unit comprises a position sensitive detector, an image sensor and a system processor, wherein the three-dimensional adjusting unit, the position sensitive detector and the image sensor are electrically connected with the system processor, and the position sensitive detector and the image sensor are respectively used for receiving light spots of two beams of light; the system processor is used for adjusting the position of the LD collimating lens on a plane perpendicular to the transmission direction of the laser beam through the three-dimensional adjusting unit so as to adjust the position of a light spot on the position sensitive detector; the system processor is also used for adjusting the position of the LD collimating lens in the laser beam transmission direction through the three-dimensional adjusting unit so as to adjust the size of the light spot on the image sensor in the fast axis direction.
2. The automatic dimming system of laser coupling optical fiber according to claim 1, wherein the three-dimensional adjusting unit comprises a pneumatic suction nozzle and a three-dimensional moving adjusting frame, the pneumatic suction nozzle is used for sucking the LD collimating lens, and the three-dimensional moving adjusting frame is connected with the pneumatic suction nozzle and adjusts the position of the pneumatic suction nozzle in the three-dimensional space, so as to adjust the position of the LD collimating lens in the three-dimensional space.
3. The automatic dimming system for a laser coupled optical fiber of claim 1, further comprising a dispensing mechanism for dispensing the LD collimating lens after the LD collimating lens is adjusted.
4. The automatic dimming system of laser coupled optical fiber according to claim 3, wherein the dispensing mechanism comprises a UV dispenser and a dispensing motion frame, the system processor is connected with the dispensing motion frame and drives the dispensing motion frame, the dispensing motion frame drives the UV dispenser, and the UV dispenser dispenses the edge of the LD collimating lens.
5. The automatic dimming system for a laser coupled fiber as claimed in claim 3, wherein the dispensing mechanism comprises a UV lamp and a UV lamp controller, the UV lamp controller being connected to the UV lamp and driving the UV lamp to perform light curing at the dispensing position.
6. The automatic dimming system for laser coupling optical fiber according to claim 1, wherein a reflecting mirror is further disposed between the LD collimating lens and the converging element, and the reflecting mirror is used for reflecting the laser beam emitted from the LD collimating lens to the converging element.
7. The automatic dimming system of the laser coupling optical fiber according to claim 1, wherein an attenuation sheet is further arranged between the beam splitting unit and the image sensor, and one of the two beams of light enters the image sensor after being attenuated by the attenuation sheet.
8. The automatic dimming system of a laser coupled fiber according to claim 1, wherein the beam splitting unit is a beam splitter.
9. The automatic dimming system of a laser coupled fiber according to claim 1, wherein the converging element is a converging lens.
10. An automatic dimming method for a laser coupling optical fiber, applied to the automatic dimming system for the laser coupling optical fiber according to any one of claims 1 to 9, comprising the following steps:
s1, setting a step length of coarse adjustment and fine adjustment of a three-dimensional adjusting unit in the X, Y, Z direction, and setting a qualified range of coarse adjustment and fine adjustment of the light spot position on the position sensitive detector; setting a qualified range of the dimension of the fast axis direction of the light spot on the image sensor;
s2, the system processor coarsely adjusts the LD collimating lens on a plane perpendicular to the transmission direction of the laser beam through the three-dimensional adjusting unit so as to adjust the position of the light spot on the position sensitive detector to a coarse adjustment qualified range;
s3, the system processor coarsely adjusts the LD collimating lens in the laser beam transmission direction through the three-dimensional adjusting unit so as to adjust the size of the fast axis direction of the light spot on the image sensor to a qualified range;
and S4, the system processor finely adjusts the LD collimating lens on a plane perpendicular to the transmission direction of the laser beam through the three-dimensional adjusting unit so as to adjust the position of the light spot on the position sensitive detector to a fine adjustment qualified range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528745.XA CN114755770B (en) | 2022-05-16 | 2022-05-16 | Automatic dimming system and dimming method for laser coupling optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210528745.XA CN114755770B (en) | 2022-05-16 | 2022-05-16 | Automatic dimming system and dimming method for laser coupling optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114755770A CN114755770A (en) | 2022-07-15 |
| CN114755770B true CN114755770B (en) | 2023-07-28 |
Family
ID=82335968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210528745.XA Active CN114755770B (en) | 2022-05-16 | 2022-05-16 | Automatic dimming system and dimming method for laser coupling optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114755770B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004226777A (en) * | 2003-01-24 | 2004-08-12 | Optoquest Co Ltd | Automatic optical fiber coupling method of optical fiber transmission device for femto-second pulse laser light, and optical fiber transmission device for femto-second pulse laser light using the method |
| JP2006023626A (en) * | 2004-07-09 | 2006-01-26 | Olympus Corp | Collimation adjusting mechanism, and optical antenna system and collimation adjusting method using same |
| EP1857847A1 (en) * | 2006-05-16 | 2007-11-21 | Schleifring und Apparatebau GmbH | Device and method for adjusting an optical rotary joint |
| CN102081200A (en) * | 2010-12-20 | 2011-06-01 | 长春理工大学 | Adaptive optical fiber coupling and output collimation device for variable light beam quality laser |
| CN103311790A (en) * | 2013-05-03 | 2013-09-18 | 中国科学院光电技术研究所 | Self-adaptive optical fiber coupling or collimator control system for bidirectional receiving and transmitting of laser beam |
| CN104977779A (en) * | 2015-07-23 | 2015-10-14 | 中国科学院广州生物医药与健康研究院 | Automatic focusing device and method thereof |
| CN204760745U (en) * | 2015-06-25 | 2015-11-11 | 鞍山伟光力激光科技有限公司 | High power semiconductor optic fibre coupled laser |
| CN211063029U (en) * | 2019-12-17 | 2020-07-21 | 昂纳信息技术（深圳）有限公司 | Light spot adjusting system of laser |
| CN112230348A (en) * | 2020-10-23 | 2021-01-15 | 深圳赛意法微电子有限公司 | Full-automatic optical fiber coupling alignment device and optical fiber coupling alignment method |
| CN113156654A (en) * | 2021-04-29 | 2021-07-23 | 北京大学 | Low-repetition-frequency laser auto-collimation device and collimation method thereof |
-
2022
- 2022-05-16 CN CN202210528745.XA patent/CN114755770B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004226777A (en) * | 2003-01-24 | 2004-08-12 | Optoquest Co Ltd | Automatic optical fiber coupling method of optical fiber transmission device for femto-second pulse laser light, and optical fiber transmission device for femto-second pulse laser light using the method |
| JP2006023626A (en) * | 2004-07-09 | 2006-01-26 | Olympus Corp | Collimation adjusting mechanism, and optical antenna system and collimation adjusting method using same |
| EP1857847A1 (en) * | 2006-05-16 | 2007-11-21 | Schleifring und Apparatebau GmbH | Device and method for adjusting an optical rotary joint |
| CN102081200A (en) * | 2010-12-20 | 2011-06-01 | 长春理工大学 | Adaptive optical fiber coupling and output collimation device for variable light beam quality laser |
| CN103311790A (en) * | 2013-05-03 | 2013-09-18 | 中国科学院光电技术研究所 | Self-adaptive optical fiber coupling or collimator control system for bidirectional receiving and transmitting of laser beam |
| CN204760745U (en) * | 2015-06-25 | 2015-11-11 | 鞍山伟光力激光科技有限公司 | High power semiconductor optic fibre coupled laser |
| CN104977779A (en) * | 2015-07-23 | 2015-10-14 | 中国科学院广州生物医药与健康研究院 | Automatic focusing device and method thereof |
| CN211063029U (en) * | 2019-12-17 | 2020-07-21 | 昂纳信息技术（深圳）有限公司 | Light spot adjusting system of laser |
| CN112230348A (en) * | 2020-10-23 | 2021-01-15 | 深圳赛意法微电子有限公司 | Full-automatic optical fiber coupling alignment device and optical fiber coupling alignment method |
| CN113156654A (en) * | 2021-04-29 | 2021-07-23 | 北京大学 | Low-repetition-frequency laser auto-collimation device and collimation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 高功率半导体激光器光纤耦合模块的研究;栾凯;中国优秀硕士学位论文全文数据库 信息科技辑;I135-66 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114755770A (en) | 2022-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8022332B2 (en) | Laser processing device | |
| CN109738996B (en) | Automatic optical fiber coupling device | |
| CZ61197A3 (en) | Apparatus for measuring distance by making use of light waves and method of determining a distance of a target object | |
| JP2000111766A (en) | Method for adjusting photoelectric constituting element and its constituting element | |
| US4745289A (en) | Multiwavelength optical apparatus for laser processing alignment and observation | |
| CN114755770B (en) | Automatic dimming system and dimming method for laser coupling optical fiber | |
| KR20140052840A (en) | Laser irradiation unit and laser manufacturing device | |
| CN114815132B (en) | Dimming system and dimming method for gradient array reflector | |
| KR100660112B1 (en) | LASER and vision equal axis processing apparatus which includes controller of the LASER beam width | |
| US20240149376A1 (en) | Laser processing device | |
| CN113614604A (en) | Light source device, detection device, and electronic apparatus | |
| US20220176488A1 (en) | Laser device | |
| US20210149026A1 (en) | Optical distance measuring device | |
| JP2003318096A (en) | Light beam radiation device | |
| CN115229361A (en) | Method for adjusting laser processing device and laser processing device | |
| KR100799500B1 (en) | Dry eaching device with polygonal scanner and galvanometer scanner | |
| JPH08204644A (en) | Optical space transmitter and its optical axis alignment method | |
| KR101057458B1 (en) | Drilling device and drilling method | |
| US11555982B1 (en) | Detecting positional deviations in an optical module | |
| KR20210020451A (en) | Laser processign apparatus and laser processing method | |
| JP7557683B1 (en) | Laser device and transmission fiber connection adjustment method | |
| CN208969412U (en) | Light source system | |
| CN113039036B (en) | Laser processing device | |
| KR102721583B1 (en) | Apparatus for manufacturing lidar receiver and method for manufacturing lidar receiver | |
| WO2023238942A1 (en) | Fiber-coupled laser system capable of controlling beam shape, welding device, and method |
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 | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Automatic Dimming System and Dimming Method for Laser Coupled Fiber Granted publication date: 20230728 Pledgee: Suzhou Bank Co.,Ltd. Science and Technology City Branch Pledgor: Jiangsu radium Technology Co.,Ltd. Registration number: Y2024980017869 |