CN204215068U - A kind of multiwavelength laser coupled optical device - Google Patents
A kind of multiwavelength laser coupled optical device Download PDFInfo
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- CN204215068U CN204215068U CN201420533198.5U CN201420533198U CN204215068U CN 204215068 U CN204215068 U CN 204215068U CN 201420533198 U CN201420533198 U CN 201420533198U CN 204215068 U CN204215068 U CN 204215068U
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Abstract
The utility model provides a kind of multiwavelength laser coupled optical device, and fixed disc and parabolic mirror difference device are at the two ends of extenal fixation bucket; The center of fixed disc is provided with coupled fiber, is arranged with the long wavelength laser of laser transmitting system unit and corresponding fiber collimating lenses centered by fixed disc; The optical axis of the wavelength laser that long wavelength laser is launched is parallel to each other, and converges to be reflected on coupled fiber end face to be coupled by parabolic mirror, is penetrated by coupled fiber output optical fibre hair.Multiple laser transmitting system is integrated, by coaxial transmitting after the coupling light of multiple laser instruments of different wave length, different purposes, makes the efficiency of light energy utilization of entire system very high, the loss of unglazed energy; At very wide work in wavelength ranges, efficiently solve that traditional multiple laser instrument photovoltaic light path is many, with can coaxial, bulky, debug difficulties and high in cost of production drawback, product structure be simple, reasonable in design.
Description
Technical field
The utility model relates to a kind of multiwavelength laser coupled optical device, for multiple laser instrument Parallel coupled to together and coaxially carry out emission coefficient, belongs to optical engineering design field especially.
Background technology
Along with the development of laser technology, laser is more and more used in every field.Meanwhile, different wave length, the laser instrument integrated application product of different purposes gets more and more, but it is all independently that most design uses, there is the laser emission optical system of multi-pass, multiaxis, optical system plays respective independent action separately, causes system huge, and debug difficulties, cost are high.Also there is some multi-passs, single pass laser emission optical system on the market at present, but this class methods many employings transmission type optical system, operating wavelength range is narrower, and capacity usage ratio is very low.Design one can realize multiwavelength laser light beam coupling coaxial transmitting, solve multi-pass, multiaxis laser transmitting system is huge, high and existing multi-pass, single shaft on the market the laser emission optical system operating wavelength range of debug difficulties, cost is narrower, and the optical system of the drawbacks such as capacity usage ratio is lower is extremely urgent.In order to solve this problem, domestic scholars proposes many solutions.Patent No. ZL200610098911.8 proposes a kind of multi-wave length laser device of coaxial light output.The method adopts frequency doubling device adjustment optical wavelength, realizes the coaxial outgoing of multiwavelength laser.But multi-wavelength described in the method has certain restriction, is necessary for fundamental frequency light, two frequency doubled lights, frequency tripling light, quadruple frequency light.When fundamental frequency light is determined, the emission wavelength on other three tunnels is just determined, can not free adjustment outgoing wavelength.Further, system is also restricted for the polarization characteristic of laser, has significant limitation.Number of patent application 201110372789.X proposes a kind of multi-wavelength laser-integrated optical emission system.This system adopts light-combining prism by the laser series coupled of different wave length, but light-combining prism realizes the function of light beam coupling by surface coating, can there is certain light energy losses.Further, due to system adopt series connection mode by the laser fusion of different wave length, when required fusion laser its many time, this apparatus system length can become very long, is unfavorable for practical application.
Summary of the invention
The purpose of this utility model is to provide a kind of multiwavelength laser coupled optical device, multiple laser instrument Parallel coupled of different wave length, different purposes to together and coaxially launch, effective solution multi-laser photovoltaic multi-pass, hyperchannel, system is huge, capacity usage ratio is low, debug difficulties and high in cost of production drawback, further, high, the service band wide ranges of the efficiency of light energy utilization of system.
a kind of multiwavelength laser coupled optical device that the utility model provides, the technical scheme adopted is:
Comprise extenal fixation bucket, fixed disc, coupled fiber output optical fibre head, coupled fiber, parabolic mirror and some laser transmitting system unit, wherein, each laser transmitting system unit is made up of fiber collimating lenses and long wavelength laser, and the focus place of fiber collimating lenses is long wavelength laser; Fixed disc and parabolic mirror difference device are at the two ends of extenal fixation bucket; The center of fixed disc is provided with coupled fiber, is arranged with the long wavelength laser of laser transmitting system unit and corresponding fiber collimating lenses centered by fixed disc; Parabolic mirror is coated with wide wavelength and increases anti-film; The optical axis of the wavelength laser that long wavelength laser is launched is parallel to each other, and converges to be reflected on coupled fiber end face to be coupled by parabolic mirror, is penetrated by coupled fiber output optical fibre hair.
The numerical aperture of described coupled fiber is greater than parabolic mirror numerical aperture, and the internal diameter of coupled fiber is less than parabolic reflector mirror foci place spot diameter.
The outer output terminal of coupled fiber output optical fibre head adopts standard fiber delivery, can mate different reflection, transmission type optical system carries out expanding of light beam and shaping.
good effect of the present utility model is:multiple laser transmitting system can be integrated, by coaxial transmitting after the coupling light of multiple laser instruments of different wave length, different purposes.The utility model does not adopt half-reflection and half-transmission formula, optical device that the consumption of polarization type homenergic is larger, makes the efficiency of light energy utilization of entire system very high, unglazed can loss; The convergence face of system adopts parabolic reflector, can at very wide work in wavelength ranges, efficiently solve that traditional multiple laser instrument photovoltaic light path is many, with can coaxial, bulky, debug difficulties and high in cost of production drawback, product structure be simple, reasonable in design.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 one-piece construction schematic diagram;
Fig. 2 is that the utility model embodiment 1 axle looks diagrammatic cross-section;
Fig. 3 is that the utility model embodiment 2 axle looks diagrammatic cross-section;
Fig. 4 is that the utility model embodiment 3 axle looks diagrammatic cross-section;
In figure, 1, fiber collimating lenses; 2, fixed disc; 3, coupled fiber output optical fibre head; 4, coupled fiber; 5, parabolic mirror; 6, extenal fixation bucket; 7,8,9,10,11,12, long wavelength laser.
Embodiment
embodiment 1
Two wave length laser beams coupling coaxial transmitting optical systems as shown in Figure 1, comprise: extenal fixation bucket 6, fixed disc 2, coupled fiber output optical fibre head 3, coupled fiber 4, parabolic mirror 5 and two laser transmitting system unit, wherein, each laser transmitting system unit is by fiber collimating lenses 1 and long wavelength laser 7(long wavelength laser 8) form; Fixed disc 2 and parabolic mirror 5 difference device are at the two ends of extenal fixation bucket 6; Fixed disc 2 is arranged with the long wavelength laser 7 of laser transmitting system unit, long wavelength laser 8 and corresponding fiber collimating lenses 1(with reference to Fig. 2); Parabolic mirror 5 is coated with wide wavelength and increases anti-film; The optical axis of the wavelength laser that long wavelength laser 7 is launched is parallel to each other, and converges to be reflected on coupled fiber 4 end face to be coupled by parabolic mirror 5, is launched by coupled fiber output optical fibre head 3;
The numerical aperture of described coupled fiber 4 is greater than parabolic mirror 5 numerical aperture, and the internal diameter of coupled fiber 4 is less than parabolic mirror 5 focus place spot diameter.
The outer output terminal of coupled fiber output optical fibre head 3 adopts standard fiber delivery, can mate different reflection, transmission type optical system carries out expanding of light beam and shaping.
embodiment 2
Four wave length laser beams coupling coaxial transmitting optical systems as shown in Figure 1, Figure 3, for two wavelength laser emission coefficient bases of embodiment 1 turn increase two laser transmitting system unit, fixed disc 2 is provided with in cruciform symmetry the long wavelength laser 7 of four laser transmitting system unit, long wavelength laser 8, long wavelength laser 9, long wavelength laser 10(wavelength is respectively 532nm, 650nm, 1064nm, 1550nm) and corresponding fiber collimating lenses 1; The optical axis of these four laser transmitting system unit is parallel to each other, by parabolic mirror 5 converge be reflected in coupled fiber 4 inner face is coupled laggard enter optical fiber, launched by coupled fiber output optical fibre head 3 by fiber-coaxial.Be coupled as adopted the long wavelength laser of 4 kinds of different wave lengths, well achieve the coupling of these four kinds of long wavelength laser light beams, efficiently solve that multi-laser application is that multi-pass, disalignment, system are huge, debug difficulties and high in cost of production drawback, excellent effect.
embodiment 3
As Fig. 1, n wave length laser beams coupling coaxial transmitting optical system shown in Fig. 4, structural principle is with embodiment 1, embodiment 2, just adopt N laser transmitting system unit, the long wavelength laser 7 of laser transmitting system unit, long wavelength laser 8, long wavelength laser 9, long wavelength laser 10, long wavelength laser 11, long wavelength laser 12, long wavelength laser N and corresponding fiber collimating lenses 1, the optical axis of N number of laser transmitting system unit is parallel to each other, by parabolic mirror 5 converge be reflected in coupled fiber 4 inner face is coupled laggard enter optical fiber, launched by coupled fiber output optical fibre head 3 by fiber-coaxial.
Claims (2)
1. a multiwavelength laser coupled optical device, comprise extenal fixation bucket, fixed disc, coupled fiber output optical fibre head, coupled fiber, parabolic mirror and some laser transmitting system unit, it is characterized in that: each laser transmitting system unit is made up of fiber collimating lenses and long wavelength laser, the focus place of fiber collimating lenses is long wavelength laser; Fixed disc and parabolic mirror difference device are at the two ends of extenal fixation bucket; The center of fixed disc is provided with coupled fiber, is arranged with the long wavelength laser of laser transmitting system unit and corresponding fiber collimating lenses centered by fixed disc; Parabolic mirror is coated with wide wavelength and increases anti-film; The optical axis of the wavelength laser that long wavelength laser is launched is parallel to each other, and converges to be reflected on coupled fiber end face to be coupled by parabolic mirror, is penetrated by coupled fiber output optical fibre hair.
2. according to multiwavelength laser coupled optical device according to claim 1, it is characterized in that: the numerical aperture of described coupled fiber is greater than parabolic mirror numerical aperture, the internal diameter of coupled fiber is less than parabolic reflector mirror foci place spot diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420533198.5U CN204215068U (en) | 2014-09-17 | 2014-09-17 | A kind of multiwavelength laser coupled optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420533198.5U CN204215068U (en) | 2014-09-17 | 2014-09-17 | A kind of multiwavelength laser coupled optical device |
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| Publication Number | Publication Date |
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| CN204215068U true CN204215068U (en) | 2015-03-18 |
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| CN201420533198.5U Expired - Fee Related CN204215068U (en) | 2014-09-17 | 2014-09-17 | A kind of multiwavelength laser coupled optical device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651779A (en) * | 2016-04-08 | 2016-06-08 | 核工业理化工程研究院 | Reflection type multiband laser focusing device |
| CN108445640A (en) * | 2018-02-28 | 2018-08-24 | 北京控制工程研究所 | A kind of coaxial uniform illumination system of relative pose vision measurement sensor |
| CN110572212A (en) * | 2019-09-25 | 2019-12-13 | 深圳市科信通信技术股份有限公司 | Bundling packaged wavelength division multiplexer |
| CN111505833A (en) * | 2020-04-26 | 2020-08-07 | 浙江雷拉激光科技有限公司 | Multiband laser coupling technology |
| CN113835232A (en) * | 2021-09-30 | 2021-12-24 | 华中科技大学 | Speckle dissipation device, laser projection imaging system and laser illumination imaging system |
| CN114236712A (en) * | 2021-12-20 | 2022-03-25 | 江苏永鼎光电子技术有限公司 | Device for coupling multi-light-path adjusting laser and optical fiber |
-
2014
- 2014-09-17 CN CN201420533198.5U patent/CN204215068U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651779A (en) * | 2016-04-08 | 2016-06-08 | 核工业理化工程研究院 | Reflection type multiband laser focusing device |
| CN105651779B (en) * | 2016-04-08 | 2020-06-16 | 核工业理化工程研究院 | Reflective laser multiband focusing device |
| CN108445640A (en) * | 2018-02-28 | 2018-08-24 | 北京控制工程研究所 | A kind of coaxial uniform illumination system of relative pose vision measurement sensor |
| CN110572212A (en) * | 2019-09-25 | 2019-12-13 | 深圳市科信通信技术股份有限公司 | Bundling packaged wavelength division multiplexer |
| CN111505833A (en) * | 2020-04-26 | 2020-08-07 | 浙江雷拉激光科技有限公司 | Multiband laser coupling technology |
| CN113835232A (en) * | 2021-09-30 | 2021-12-24 | 华中科技大学 | Speckle dissipation device, laser projection imaging system and laser illumination imaging system |
| CN114236712A (en) * | 2021-12-20 | 2022-03-25 | 江苏永鼎光电子技术有限公司 | Device for coupling multi-light-path adjusting laser and optical fiber |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20160917 |
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| CF01 | Termination of patent right due to non-payment of annual fee |