CN207366844U - A kind of dual-wavelength laser coupler - Google Patents
A kind of dual-wavelength laser coupler Download PDFInfo
- Publication number
- CN207366844U CN207366844U CN201721075720.XU CN201721075720U CN207366844U CN 207366844 U CN207366844 U CN 207366844U CN 201721075720 U CN201721075720 U CN 201721075720U CN 207366844 U CN207366844 U CN 207366844U
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- CN
- China
- Prior art keywords
- laser
- dichroic mirror
- minute surface
- dual
- laser beam
- 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.)
- Expired - Fee Related
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- Radiation-Therapy Devices (AREA)
Abstract
It the utility model is related to a kind of dual-wavelength laser coupler, multiple speculums and a dichroic mirror including housing and in housing, laser light incident hole and laser emitting hole are provided with housing, dichroic mirror includes the first minute surface and the second minute surface, reflectance coating is coated with second minute surface, reflectance coating can be such that the first beam laser beam of different wave length and two beam laser of the second beam laser beam passes through and reflection respectively；Speculum eyeglass and dichroic mirror eyeglass direction can adjust；First beam laser beam is collimated to pass through dichroic mirror by laser light incident hole；Collimated the second minute surface for being incident to dichroic mirror after multiple speculums reflect successively by laser light incident hole of second beam laser beam, second mirror-reflection the second beam laser beam；First beam laser beam and the second beam laser beam weight merga pass laser emitting hole export.The utility model is safe, small, cost is low, workable, on the premise of beam quality is not influenced, realizes high power laser light coupling output.
Description
Technical field
The utility model belongs to laser couplers field, is related to a kind of dual-wavelength laser coupler.
Background technology
Optical fiber laser is mainly used in the cutting of the metal plates such as stainless steel, carbon steel, aluminium alloy, improves output laser power density
Be conducive to improve metal plate cutting speed.Laser injures optical fiber certainly when inside of optical fibre produces and transmits, by nonlinear effect, heat waste
Body technique influences, and simple optical fiber output power is typically small, to realize the close laser output of high power, and technology difficulty is larger.Mesh
The preceding exportable 1800W laser of simple optical fiber highest, laser power density 5x106W/mm2.It is defeated to obtain the laser of more power
Go out, generally use power combing mode, multiple laser is synthesized by laser bundling device, i.e., is carried out multiple simple optical fibers
After beam combination fused biconical taper and a simple optical fiber carries out welding, realizes that multiple beam couples.Stimulated light bundling device draws cone and fusing point matter
Amount influences, and laser beam quality is deteriorated and higher thermal loss occurs in fusion point, and security is low, is unsuitable for industrial products application.
Utility model content
Laser beam quality is deteriorated after laser economic cooperation beam in the prior art and higher thermal loss occurs in fusion point in order to solve,
The problems such as security is low, the utility model provide a kind of dual-wavelength laser coupler, can be applied to the laser of two beam different wave lengths
Light beam is coupled, and can be carried by the coupler by the laser coupled of the different wave length of two beam parallel transmissions into same light path
Height output laser power density.
The technical solution of the utility model is to provide a kind of dual-wavelength laser coupler, it is characterized in that：Including shell
Body 7 and multiple speculums 1 and a dichroic mirror 2 in housing 7, be provided with above-mentioned housing 7 first laser entrance aperture 5a,
Second laser entrance aperture 5b and laser emitting hole 6, above-mentioned dichroic mirror 2 include the first minute surface 21 and the second minute surface 22, and above-mentioned second
Reflectance coating is coated with minute surface 22, above-mentioned reflectance coating can make the first beam laser beam and the second beam laser beam two of different wave length
Shu Jiguang is passed through and reflection respectively；
Speculum eyeglass and dichroic mirror eyeglass direction can adjust；
First beam laser beam is collimated to pass through dichroic mirror by second laser entrance aperture 5b；
Second beam laser beam is collimated to be entered by first laser entrance aperture 5a after multiple speculums reflect successively
It is incident upon the second minute surface of dichroic mirror, second mirror-reflection the second beam laser beam；
First beam laser beam is overlapped with the second beam laser beam and exported by laser emitting hole 6.
The adjustable microscope base 3 of multiple directions, speculum 1 and dichroic mirror 2 are further included on microscope base 3.
Preferably, above-mentioned speculum 1 is at least 3, by increasing the order of reflection of second laser light beam, realizes that second swashs
Small incident of the light light beam on dichroic mirror.
Preferably, the fixed knob 4 for regulating lens holder direction is provided with above-mentioned microscope base 3.
Preferably, the first beam laser beam and the second beam laser beam wavelength difference are more than 10nm.
The utility model has the advantages that：
The utility model is safe, small, cost is low, workable, on the premise of beam quality is not influenced,
Realize high power laser light coupling output.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Reference numeral is in figure：1- speculums, 2- dichroic mirrors, the first minute surfaces of 21-, the second minute surfaces of 22-, 3- microscope bases, 4- are solid
Determine knob, 5a- first laser entrance aperture, 5b- second laser entrance aperture, 6- laser emittings hole, 7- housings.
Embodiment
The utility model is further described below in conjunction with attached drawing.
The utility model dual-wavelength laser light beam coupler, including housing 7, multiple speculums 1 and a dichroic mirror 2；Shell
First laser entrance aperture 5a, second laser entrance aperture 5b and the laser emitting hole 6 passed through for laser is provided with body；Multiple reflections
Mirror 1 is located at enclosure interior and is successively set in mutual reflected light path；Dichroic mirror is located at enclosure interior, including the first minute surface 11
With the second minute surface 22, the second minute surface 22 is coated with reflectance coating, can reflected second laser light beam, first laser light beam can pass through reflection
Film, on first laser light beam without influence；Microscope base 3 is further included, dichroic mirror 2 is each attached on corresponding microscope base 3 with speculum 1, can
Its corresponding eyeglass direction of rotation by microscope base vernier control.
First laser light beam λ1From second laser entrance aperture 5b incidences and dichroic mirror 2 is passed through, any change does not occur for light beam,
Transmitted along original optical path；Second laser light beam λ2Reflexed to from first laser entrance aperture 5a incidences and by multiple speculums 1 double-colored
The second minute surface of mirror 22,22 reflected second laser light beam of the second minute surface of dichroic mirror, the first beam laser beam and the second beam laser beam
Weight merga pass laser emitting hole 6 exports.As first laser light beam λ1With second laser light beam λ2When wavelength difference is smaller, it is necessary to
Ensure second laser light beam λ2Incidence angle to the second minute surface of dichroic mirror 22 smaller (ensures λ2The reflected beams output beam and laser
Light beam λ1Overlap), dichroic mirror just can be achieved on first laser light beam without influence, the effect to the reflection of second laser light beam, therefore,
Beam direction is controlled to second laser light beam multiple reflections with upper reflector by using three, meets incidence angle requirement.
By taking Fig. 1 as an example, speculum number is 3 in Fig. 1, carries out dual wavelength parallel laser beam coupler operation principle and says
It is bright.
First laser light beam λ1With second laser light beam λ2Respectively from second laser entrance aperture 5b, first laser entrance aperture 5a
Parallel to be incident in beam coupler, first laser beam laser wavelength is 1070nm, and second laser beam laser wavelength is
1090nm, the reflectance coating of the second minute surface of dichroic mirror 22 are anti-to 1090nm wavelength lights to 1070nm wavelength light transmission >=99.0%
Penetrate rate >=99.9%, the incident angle of dichroic mirror and first laser light beam is not more than 5 degree, and the rotation angle fixation of dichroic mirror is not done
Adjust, mainly control incidence angle of the second laser light beam on dichroic mirror by finely tuning mirror angle.First laser light beam λ1
Any change, second laser light beam λ do not occur along original optical path transmission and light beam through after dichroic mirror2Pass sequentially through speculum
Continuous reflection, and finally after the second minute surface of dichroic mirror reflects along first laser light beam λ1Beam direction is transmitted, and
First laser light beam λ1With second laser light beam λ2Light beam is the homocentric pencil of rays, i.e. second laser light beam λ on dichroic mirror2It is final to pass
Defeated direction and first laser light beam λ1Light beam is completely superposed, and realizes λ1+λ2Coupled light beam exports.In actual test, λ1With λ2Power
It is 1500W, output power 2955W is realized by the beam coupler of said structure, i.e., actual coupling efficiency is 98.5%, peace
Total stability is high, meets industrial products application.
Claims (5)
- A kind of 1. dual-wavelength laser coupler, it is characterised in that：Multiple speculums including housing (7) and in housing (7) (1) and a dichroic mirror (2), be provided with the housing (7) first laser entrance aperture (5a), second laser entrance aperture (5b) and Laser emitting hole (6), the dichroic mirror (2) include the first minute surface (21) and the second minute surface (22), on second minute surface (22) Reflectance coating is coated with, the reflectance coating can make the two beam laser point of the first beam laser beam and the second beam laser beam of different wave length Tou Guo not be with reflection；Speculum eyeglass and dichroic mirror eyeglass direction can adjust；First beam laser beam is collimated to pass through dichroic mirror by second laser entrance aperture (5b)；Second beam laser beam is collimated incident after multiple speculums reflect successively by first laser entrance aperture (5a) To the second minute surface of dichroic mirror, second mirror-reflection the second beam laser beam；First beam laser beam and the second beam laser beam weight merga pass laser emitting hole (6) output.
- A kind of 2. dual-wavelength laser coupler according to claim 1, it is characterised in that：It is adjustable to further include multiple directions Microscope base (3), speculum (1) and dichroic mirror (2) are on microscope base (3).
- A kind of 3. dual-wavelength laser coupler according to claim 1 or 2, it is characterised in that：The speculum (1) is at least For 3.
- A kind of 4. dual-wavelength laser coupler according to claim 2, it is characterised in that：It is provided with the microscope base (3) Fixed knob (4) for regulating lens holder direction.
- A kind of 5. dual-wavelength laser coupler according to claim 3, it is characterised in that：First beam laser beam and second Beam laser beam wavelength difference is more than 10nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721075720.XU CN207366844U (en) | 2017-08-25 | 2017-08-25 | A kind of dual-wavelength laser coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721075720.XU CN207366844U (en) | 2017-08-25 | 2017-08-25 | A kind of dual-wavelength laser coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207366844U true CN207366844U (en) | 2018-05-15 |
Family
ID=62422492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721075720.XU Expired - Fee Related CN207366844U (en) | 2017-08-25 | 2017-08-25 | A kind of dual-wavelength laser coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207366844U (en) |
-
2017
- 2017-08-25 CN CN201721075720.XU patent/CN207366844U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201027 Address after: 272000 Chengxiang Avenue and Jiamei Road Intersection of Jining Economic Development Zone, Shandong Province, Lunan New Energy Automobile Industrial Park Patentee after: Shandong Zhongke Meimei Laser Technology Co.,Ltd. Address before: 1 building, No. 710119, information Avenue, hi tech Zone, Shaanxi, Xi'an, 17 Patentee before: XI'AN ZHONGKE ZHONGMEI LASER TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180515 Termination date: 20210825 |