CN107121781A - Light-beam forming unit - Google Patents
Light-beam forming unit Download PDFInfo
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- CN107121781A CN107121781A CN201710465010.6A CN201710465010A CN107121781A CN 107121781 A CN107121781 A CN 107121781A CN 201710465010 A CN201710465010 A CN 201710465010A CN 107121781 A CN107121781 A CN 107121781A
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- 239000013307 optical fiber Substances 0.000 claims abstract description 27
- 239000004065 semiconductor Substances 0.000 claims abstract description 23
- 238000007493 shaping process Methods 0.000 claims abstract description 18
- 238000003491 array Methods 0.000 claims abstract description 12
- 230000008707 rearrangement Effects 0.000 claims description 14
- 230000011218 segmentation Effects 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 238000002407 reforming Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010905 molecular spectroscopy Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
- G02B27/0961—Lens arrays
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0905—Dividing and/or superposing multiple light beams
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0972—Prisms
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/30—Collimators
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Semiconductor Lasers (AREA)
Abstract
The present invention provides a kind of light-beam forming unit, including light source, successively away from light source and the first lens array being arranged on the emitting light path of light source, the second lens array, beam shaping, beam-focuser and the first optical fiber, light source includes the semiconductor laser that multiple arrays are set, first lens array includes the first lens that multiple arrays are set, first lens are with semiconductor laser one by one just to corresponding, second lens include the second lens that multiple arrays are set, and the second lens are with the first lens one by one just to corresponding；Light source is located at the front focal plane of the first lens array, and the back focal plane of the first lens array is overlapped with the front focal plane of the second lens array.First lens array is collimated to light of the light source on quick shaft direction, second lens array is collimated to light of the light source on slow-axis direction, by being collimated to light of the light source on slow-axis direction, reduce because the diverging on slow-axis direction is being lost caused by side, so as to improve shaping efficiency.
Description
Technical field
The present invention relates to semiconductor laser field, more particularly to a kind of light-beam forming unit.
Background technology
Semiconductor laser with its small volume, lightweight, voltage is low, power is big the features such as be widely used in the first optical fiber
Communication, the detection of integrated photoelectricity, optical disc storage, pump light source, atmospheric environment, the analysis of trace toxic gas and Molecular Spectroscopy etc. with
The closely bound up numerous areas of human lives.However, semiconductor laser is due to its special operation principle, its beam quality exists
It is vertical and horizontal to be differed greatly in the both direction of P-N junction, the direction perpendicular to P-N junction is generally called quick shaft direction, put down
Row is referred to as slow-axis direction in the direction of P-N junction.Beam divergence angle on quick shaft direction is big, the beam divergence angle on slow-axis direction
It is small.Just because of the beam quality in the two directions pole lack of uniformity make semiconductor laser when applying it is relatively difficult, in reality
Need to carry out shaping to its light beam during border application (such as fiber coupling), form small core diameter, the optical fiber of the high brightness of small value aperture
Coupling semiconductor laser is exported.If only the beam shaping system using common microlens array collimation hot spot will be caused straight
Footpath is smaller, the angle of divergence is larger, operating distance is shorter, and light beam is not fully utilized, moreover, the light energy losses in transmitting procedure
More, beam quality is not good.
The content of the invention
In order to solve the above problems, the present invention proposes a kind of light-beam forming unit, can avoid laser in reforming process
Energy loss and loss, improve beam quality and shaping efficiency.
Concrete technical scheme proposed by the present invention is：A kind of light-beam forming unit is provided, the light-beam forming unit includes
Light source, successively away from the light source and the first lens array being arranged on the emitting light path of the light source, the second lens array,
Beam shaping, beam-focuser and the first optical fiber, the light source include the semiconductor laser that multiple arrays are set, described the
One lens array includes the first lens that multiple arrays are set, and first lens are with the semiconductor laser one by one just to right
Should, second lens include the second lens that multiple arrays are set, and second lens are just right one by one with first lens
Correspondence；The light source be located at first lens array front focal plane, the back focal plane of first lens array with it is described
The front focal plane of second lens array is overlapped.
Further, the beam shaping includes being arranged at the light beam on the emitting light path away from the light source successively
Split component, light beam rearrangement component and balanced component.
Further, the light beam segmentation component includes at least two parallelogram arranged in a straight line in the first direction
Plate, mutually staggers in a second direction per the two neighboring parallelogram plate, the first direction and the second direction
Vertically, the first direction, the second direction are vertical with the emitting light path.
Further, the light beam rearrangement component includes prism array, and the prism array is included along the second direction
Multiple prisms arranged in a straight line, the incidence surface of the multiple prism is parallel with the exiting surface of the parallelogram plate, the rib
The number of mirror is equal to the product of the number of the parallelogram plate and the number of the semiconductor laser.
Further, the balanced component includes the first right-angle prism and the second right-angle prism, first right-angle prism
Incidence surface it is parallel with the exiting surface of the multiple prism.
Further, the beam-focuser include successively away from the light source and be arranged on the emitting light path the
Three lens, diaphragm, the 4th lens and the 5th lens.
Further, the 3rd lens are concavees lens, and the 4th lens and the 5th lens are convex lens, institute
State the front focal plane that diaphragm is located at the 4th lens.
Further, the light-beam forming unit also includes the wave filter being arranged on the emitting light path, the filtering
Device is located between the optical focus device and first optical fiber.
Further, the wave filter includes capillary, photomask and the second optical fiber, and the photomask is covered in the hair
Tubule towards the light source and away from the light source while, second optical fiber is along the emitting light path through described
Photomask and the capillary.
Further, the light-beam forming unit also includes the light being arranged between the wave filter and first optical fiber
Beam collimator.
Further, the beam collimator include successively away from the light source and be arranged on the emitting light path the
Six lens, the 7th lens, the wave filter are located at the front focal plane of the 6th lens, and the 6th lens are located at the described 7th
The front focal plane of lens.
The light-beam forming unit that the present invention is provided includes the first lens array, the second lens array, beam shaping and light
Beam-focuser, first lens array is collimated to light of the light source on quick shaft direction, second lens array
Light of the light source on slow-axis direction is collimated, by being collimated to light of the light source on slow-axis direction, subtracted
Lack because the diverging on slow-axis direction is being lost caused by side, so as to improve shaping efficiency.
Brief description of the drawings
Pass through the following description carried out with reference to accompanying drawing, above and other aspect, feature and the advantage of embodiments of the invention
It will become clearer, in accompanying drawing：
Fig. 1 is the structural representation of light-beam forming unit；
Fig. 2 is the structural representation that light beam splits component and light beam rearrangement component；
Fig. 3 is the top view of beam shaping；
Fig. 4 is the structural representation of beam-focuser；
Fig. 5 is the structural representation of wave filter.
Embodiment
Hereinafter, with reference to the accompanying drawings to embodiments of the invention are described in detail.However, it is possible to come real in many different forms
Apply the present invention, and the specific embodiment of the invention that should not be construed as limited to illustrate here.It is opposite that there is provided these implementations
Example is in order to explain the principle and its practical application of the present invention, so that others skilled in the art are it will be appreciated that the present invention
Various embodiments and be suitable for the various modifications of specific intended application.
Reference picture 1, the light-beam forming unit that the present embodiment is provided includes light source 1, away from light source 1 and is arranged at light source successively
The first lens array 2, the second lens array 3, beam shaping 4, light beam on 1 emitting light path (x directions in such as Fig. 1) are focused on
The optical fiber 6 of device 5 and first.Light source 1 includes the semiconductor laser 11 that multiple arrays are set, and the first lens array 2 includes multiple battle arrays
The first lens 21 set are arranged, the first lens 21 are with semiconductor laser 11 one by one just to corresponding.Second lens 3 include multiple battle arrays
The second lens 31 set are arranged, the second lens 31 are with the first lens 21 one by one just to corresponding.Light source 1 is located at the first lens array 2
Front focal plane, the back focal plane of the first lens array 2 overlaps with the front focal plane of the second lens array 3.
The front focal plane of the first lens array 2 refers to being located at the first lens array 2 towards the one of light source 1 in the present embodiment
Side and be equal to the distance of the first lens array 2 the first lens 21 focal length plane, conversely, rear Jiao of the first lens array 2
Plane refers to being located at the first lens array 2 away from the side of light source 1 and is equal to the first lens with the distance of the first lens array 2
The plane of 21 focal length, similarly, the front focal plane of the second lens array 3 refer to being located at the second lens array 3 towards light source 1
Side and be equal to the distance of the second lens array 3 the second lens 31 focal length plane.
First lens 21 and the second lens 31 are cylindrical lens, light of first lens 21 to light source 1 on quick shaft direction
Shu Jinhang is collimated, and the second lens 31 are collimated to light beam of the light source 1 on slow-axis direction.The size and second of first lens 21
The size of lens 31 is different, it is preferred that the first lens 21 are that lenticule is micro-cylindrical lens.
The light beam that light source 1 is sent incides the first lens array 2, and the first lens array 2 is to light source 1 on quick shaft direction
Light beam is collimated, and the light beam after the first lens array 2 collimation is incided on the second lens array 3, the second lens array 3
Light beam of the light source 1 on slow-axis direction is collimated, it is whole that the light beam after the second lens array 3 collimation sequentially passes through light beam
It is coupled into after shape device 4, beam-focuser 5 in first optical fiber 6.Wherein, the light beam that beam shaping 4 is used for after collimation is divided
Cut and reset, beam-focuser 5 is used to be focused the light beam after rearrangement and the light beam coupling after focusing is entered into the first optical fiber 6
In.The first optical fiber 6 in the present embodiment is multimode fibre, for transmitting multi-mode laser.
Reference picture 2, beam shaping 4 include successively away from light source 1 be arranged on emitting light path light beam segmentation component 41,
Light beam rearrangement component 42 and balanced component 43.Light beam segmentation component 41 is used for the light beam after the second lens array 3 collimation
Split, light beam rearrangement component 42 is used to enter rearrangement, balanced component to splitting the light beam after component 41 is split by light beam
43 are used to be adjusted the angle of divergence of the light beam after rearrangement.
It is arranged in a straight line at least that light beam segmentation component 41 in the present embodiment includes (y directions in such as Fig. 1) in the first direction
Two parallel four side plates 10, mutually stagger per two neighboring parallelogram plate 10 in second direction (z directions in such as Fig. 1),
First direction is mutually perpendicular to second direction and first direction, second direction are vertical with emitting light path.Wherein, parallelogram
Angle between adjacent two hypotenuse in two faces of plate 10 along the y-axis direction is equal to 45 °.The lens array of parallelogram plate 10 and second
Row 3 just to face be its incidence surface, away from the face of the second lens array 3 be its exiting surface.
Light beam rearrangement component 42 includes prism array, wherein, prism array is included in a second direction (z directions in such as Fig. 1)
Multiple prisms 20 arranged in a straight line, the number of prism 20 is equal to the number of parallelogram plate 10 and of semiconductor laser 11
Several products, it is corresponding with a semiconductor laser 11 in light source 1 respectively per two neighboring prism 20.Wherein, prism 20 with
Parallelogram plate 10 just to face be its incidence surface, the incidence surface of prism 20 is parallel with the exiting surface of parallelogram plate 10.
In the present embodiment, the exiting surface of prism 20 and its exiting surface are the same face, i.e. the incidence surface of prism 20 is the light extraction of prism 20
Face.
In the present embodiment so that light beam segmentation component 41 includes two parallel four side plates 10 as an example, two parallel four side plates 10 exist
Mutually stagger on the direction of emitting light path, the beam orthogonal that each semiconductor laser 11 is launched incide two it is parallel
Two light beams are divided on four side plates 10 and by two parallel four side plates 10, two light beams are incided in prism array with being somebody's turn to do respectively
On the corresponding two neighboring prism 20 of semiconductor laser 11.Wherein, the offset of two light beams after segmentation is only dependent upon two
Individual parallel four side plate 10 is the distance mutually staggered on z directions in second direction, so as to by controlling two parallel four sides
Plate 10 is that the distance mutually staggered on z directions is accurately controlled come the offset to the light beam after segmentation in second direction,
Simplify assembly technology.Certainly, light beam segmentation component 41 can also include more parallel four side plates 10, and it will be saturating by second
The quantity of the light beam obtained after light beam segmentation after the collimation of lens array 3 is equal with the quantity of parallel four side plate 10.
For example, light source 1 includes 4 semiconductor lasers 11, first laser is followed successively by from top to down according to z directions in Fig. 1
Device, second laser, the 3rd laser, the 4th laser, then prism array include 8 prisms, according to z directions in Fig. 1 from upper
And under be followed successively by the first prism, the second prism, prism, the 4th prism, pentaprism, the 6th prism, the 7th prism, the 8th
Prism, the light beam of first laser device outgoing is divided into two beams by two parallel four side plates 10, a branch of to incide the first prism, it is a branch of enter
It is mapped to the second prism；The light beam of second laser outgoing is divided into two beams by two parallel four side plates 10, a branch of to incide Rhizoma Sparganii
Mirror, it is a branch of to incide the 4th prism, the like, 8 light beams after prism array are rearranged.Above-named 4
Individual semiconductor laser is set in a row in the z-direction, when light source 1 includes 8 semiconductor lasers and is set in the z-direction in two row
Put, 4 semiconductor lasers of each row correspondence, the light beam of 4 semiconductor laser outgoing of each row is by two parallel four sides
Plate 10 is divided into 8 beams, and 16 light beams are always obtained, and this 16 light beams is rearranged after prism array.
Reference picture 3, balanced component 43 includes the first right-angle prism 43a and the second right-angle prism 43b, the first right-angle prism
43a incidence surface is parallel with the exiting surface of multiple prisms 20.
First right-angle prism 43a incidence surface refers to a face in orthogonal two faces, the first right-angle prism
43a exiting surface refers to that the angle with other two faces is less than 90 ° of face.Light beam after prism array is reset is from multiple
The exiting surface outgoing of prism 20 and incidence surface from the first right-angle prism 43a is impinged perpendicularly in the first right-angle prism 43a,
From the first right-angle prism 43a exiting surface outgoing after being reflected in one right-angle prism 43a.
From the light beam of the first right-angle prism 43a exiting surface outgoing from the second right-angle prism 43b incidence surface vertical incidence
Into the second right-angle prism 43b, the exiting surface after being reflected in the second right-angle prism 43b from the second right-angle prism 43b goes out
Penetrate.Second right-angle prism 43b incidence surface refers to a face in orthogonal two faces, the second right-angle prism 43b's
Exiting surface refers to that the angle with other two faces is less than 90 ° of face.From the light beam of the second right-angle prism 43b exiting surface outgoing
Direction it is identical with the direction of the light beam of the exiting surface outgoing from multiple prisms 20, go out from the second right-angle prism 43b exiting surface
The angle of divergence for the light beam penetrated is different from the angle of divergence of the light beam of the exiting surface outgoing from multiple prisms 20, therefore, straight by first
Angle prism 43a and the second right-angle prism 43b can adjust the angle of divergence of the light beam after resetting.In the present embodiment, the first right-angled edge
Mirror 43a and the second right-angle prism 43b sizes are identical.In other embodiments, the first right angle can be adjusted according to actual needs
Prism 43a, the second right-angle prism 43b angles are less than the angle between 90 ° of two faces to obtain the required angle of divergence, also may be used
To adjust the position of outgoing beam by adjusting the first right-angle prism 43a, the second right-angle prism 43b size or position.When
So, the balanced component 43 in the present embodiment can also include more right-angle prisms, not limit here.
Reference picture 4, beam-focuser 5 is included successively away from light source 1 and the 3rd lens 51, the light that are arranged on emitting light path
Late 52, the 4th lens 53 and the 5th lens 54.3rd lens 51 are concavees lens, and the 4th lens 53 and the 5th lens 54 are convex lens
Mirror, diaphragm 52 is located at the front focal plane of the 4th lens 53.The front focal plane of 4th lens 53 refers to being located at the court of the 4th lens 53
It is equal to the plane of the focal length of the 4th lens 53 to the side of diaphragm 52 and with the distances of the 4th lens 53.
Light beam after the rearrangement of light beam rearrangement component 42 is incided on the 3rd lens 51, and the 3rd lens 51 are used to adjust light
The angle of divergence of beam, the light beam after the 3rd lens 51 is incided on diaphragm 52, and diaphragm 52 is used for the big of the hot spot for adjusting light beam
Small, the light beam after diaphragm 52 is collimated by the 4th lens 53, and the light beam after collimation is focused by the 5th lens 54 again.
Light-beam forming unit in reference picture 5, the present embodiment also includes the wave filter 7 being arranged on emitting light path, filtering
Device 7 is located between the optical fiber 6 of optical focus device 5 and first.Wave filter 7 includes capillary 71, the optical fiber 73 of photomask 72 and second.Hide
Light film 72 be covered in capillary 71 towards light source 1 and away from light source 1 while, the second optical fiber 73 runs through along emitting light path
Photomask 72 and capillary 71.Wherein, photomask 72 is made up of opaque colloid or black organic material.Wherein, second
Optical fiber 73 is multimode fibre.
Light beam after the focusing of the 5th lens 54 is incided on wave filter 7, wherein, incide and deviate on photomask 72
The light beam of second optical fiber 73 is blocked film 72 and blocked, and being only coupled to the light beam in the second optical fiber 73 could be from the second optical fiber 73
Outgoing.
Light-beam forming unit also includes the beam collimator 8 being arranged between the optical fiber 6 of wave filter 7 and first.Beam collimation
Device 8 is included successively away from light source 1 and the 6th lens 81, the 7th lens 82 that are arranged on emitting light path, and wave filter 7 is located at the 6th
The front focal plane of lens 81, the 6th lens 81 are located at the front focal plane of the 7th lens 82.What the front focal plane of the 6th lens 81 referred to
It is towards the side of wave filter 7 and flat equal to the focal length of the 6th lens 81 with the distance of the 6th lens 81 positioned at the 6th lens 81
Face.The front focal plane of 7th lens 82 refer to be located at the 7th lens 82 towards the side of the 6th lens 81 and with the 7th lens 82
Distance be equal to the 7th lens 82 focal length plane.
The light beam of the outgoing of device 7 is incided on the 6th lens 81 after filtering, and the 6th lens 81 are used to adjust incident beam
The angle of divergence, the light beam after the 6th lens 81 is incided on the 7th lens 82, and the 7th lens 82 are used for incident thereon
Light beam is collimated and is entered the light beam coupling after collimation in the first optical fiber 6.
The present embodiment is collimated by the first lens array 2 to light of the light source 1 on quick shaft direction, passes through the second lens
Array 3 is collimated to light of the light source 1 on slow-axis direction, so as to reduce because the diverging on slow-axis direction is drawn on side
The loss risen, improves shaping efficiency.Split and reset by the light beam after the collimation of beam shaping 4, pass through control
Two parallel four side plates 10 are that the distance mutually staggered on z directions to carry out the offset of the light beam after segmentation in second direction
It is accurately controlled, simplifies assembly technology；Secondary adjust can be carried out to the angle of divergence of the light beam after rearrangement by balanced component 43
It is whole.Light beam after restructuring is focused into by a hot spot by beam-focuser 5 and incides wave filter 7, due to shading in wave filter 7
The presence of film 72, the wide part for deviateing the second optical fiber 73 is blocked, by the 7th after the 6th lens 81 adjust its angle of divergence
It is circular multi-mode laser after lens 82 are collimated, this multi-mode laser, light energy losses are smaller, and light distribution is uniform, it is to avoid
The loss and loss of energy of the laser in reforming process, improve beam quality and shaping efficiency.
Described above is only the embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of the application principle is not departed from, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (11)
1. a kind of light-beam forming unit, it is characterised in that including light source, successively away from the light source and be arranged at the light source
The first lens array, the second lens array, beam shaping, beam-focuser and the first optical fiber on emitting light path, the light
Source includes the semiconductor laser that multiple arrays are set, and first lens array includes the first lens that multiple arrays are set,
First lens and the semiconductor laser are one by one just to corresponding, and second lens include second that multiple arrays are set
Lens, second lens are with first lens one by one just to corresponding；The light source is located at before first lens array
Focal plane, the back focal plane of first lens array is overlapped with the front focal plane of second lens array.
2. light-beam forming unit according to claim 1, it is characterised in that the beam shaping is included successively away from institute
State light beam segmentation component, light beam rearrangement component and balanced component that light source is arranged on the emitting light path.
3. light-beam forming unit according to claim 2, it is characterised in that the light beam segmentation component is included along first party
It is mutually wrong in a second direction per the two neighboring parallelogram plate at least two parallelogram plates arranged in a straight line
Open, the first direction is vertical with the second direction, the first direction, the second direction are hung down with the emitting light path
Directly.
4. light-beam forming unit according to claim 3, it is characterised in that the light beam rearrangement component includes prism battle array
Row, the prism array is included along the second direction multiple prisms arranged in a straight line, the incidence surface of the multiple prism and institute
The exiting surface for stating parallelogram plate is parallel, and the number of the prism is partly led equal to the number of the parallelogram plate with described
The product of the number of body laser.
5. light-beam forming unit according to claim 4, it is characterised in that the balanced component includes the first right-angle prism
With the second right-angle prism, the incidence surface of first right-angle prism is parallel with the exiting surface of the multiple prism.
6. light-beam forming unit according to claim 1, it is characterised in that the beam-focuser is included successively away from institute
The 3rd lens, diaphragm, the 4th lens and the 5th lens stated light source and be arranged on the emitting light path.
7. light-beam forming unit according to claim 6, it is characterised in that the 3rd lens are concavees lens, described the
Four lens and the 5th lens are convex lens, and the diaphragm is located at the front focal plane of the 4th lens.
8. the light-beam forming unit according to claim any one of 1-7, it is characterised in that also including being arranged at the outgoing
Wave filter in light path, the wave filter is located between the optical focus device and first optical fiber.
9. light-beam forming unit according to claim 8, it is characterised in that the wave filter includes capillary, photomask
And second optical fiber, the photomask be covered in the capillary towards the light source and away from the light source while,
Second optical fiber runs through the photomask and the capillary along the emitting light path.
10. light-beam forming unit according to claim 8, it is characterised in that also including being arranged at the wave filter and institute
State the beam collimator between the first optical fiber.
11. light-beam forming unit according to claim 10, it is characterised in that the beam collimator includes remote successively
The light source and the 6th lens, the 7th lens being arranged on the emitting light path, the wave filter are located at the 6th lens
Front focal plane, the 6th lens be located at the 7th lens front focal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465010.6A CN107121781B (en) | 2017-06-19 | 2017-06-19 | Beam shaping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465010.6A CN107121781B (en) | 2017-06-19 | 2017-06-19 | Beam shaping device |
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|---|---|
| CN107121781A true CN107121781A (en) | 2017-09-01 |
| CN107121781B CN107121781B (en) | 2023-12-29 |
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| CN201710465010.6A Active CN107121781B (en) | 2017-06-19 | 2017-06-19 | Beam shaping device |
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| CN109444825A (en) * | 2018-11-15 | 2019-03-08 | 深圳市速腾聚创科技有限公司 | Laser transmitting set |
| CN109975258A (en) * | 2019-03-25 | 2019-07-05 | 武汉理工大学 | A kind of micro-fluidic detection system of signal enhancing |
| CN112099242A (en) * | 2020-09-21 | 2020-12-18 | 中国科学院国家天文台南京天文光学技术研究所 | Transmission type image splitter device and working system thereof |
| CN112162366A (en) * | 2020-09-01 | 2021-01-01 | 联合微电子中心有限责任公司 | End face coupling device of optical fiber and waveguide chip |
| WO2021196930A1 (en) * | 2020-04-02 | 2021-10-07 | 杭州欧镭激光技术有限公司 | Beam shaping device for laser radar and shaping method for far-field light spot by using beam shaping device |
| CN114894122A (en) * | 2022-04-26 | 2022-08-12 | 深圳市深视智能科技有限公司 | Verticality measuring probe and measuring device |
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| CN114964157A (en) * | 2022-04-26 | 2022-08-30 | 深圳市深视智能科技有限公司 | Inclination angle measuring probe and measuring device |
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