CN208953241U - A kind of Optical fibre parametric measurement system - Google Patents
A kind of Optical fibre parametric measurement system Download PDFInfo
- Publication number
- CN208953241U CN208953241U CN201821757263.7U CN201821757263U CN208953241U CN 208953241 U CN208953241 U CN 208953241U CN 201821757263 U CN201821757263 U CN 201821757263U CN 208953241 U CN208953241 U CN 208953241U
- Authority
- CN
- China
- Prior art keywords
- fiber
- camera
- host computer
- optical fiber
- translation stage
- 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
Abstract
The utility model belongs to technical field of optical fiber, discloses a kind of Optical fibre parametric measurement system, including laser light source, fiber clamp, camera, two-dimentional electric angle position platform, three-D electric translation stage, host computer, fiber optic collimator controller；Laser light source is for generating laser, fiber clamp is for fixing testing fiber, fiber clamp is fixed on the platform of two-dimentional electric angle position, camera is for acquiring light spot image information, and light spot image information is transmitted to host computer, camera is fixed on three-D electric translation stage, and host computer is connected with fiber optic collimator controller, and fiber optic collimator controller is connect with two-dimentional electric angle position platform, three-D electric translation stage respectively.The utility model is to realize to measure the parameter of single mode optical fiber to provide hardware foundation.
Description
Technical field
The utility model relates to technical field of optical fiber more particularly to a kind of Optical fibre parametric measurement systems.
Background technique
Optical fiber not only promotes the development of command, control, communications, and information, science, industry and in terms of also have and extensively answer
With.And single mode optical fiber has the advantage that application scenarios are also more and more because of it in remote transmission.Such as in terms of medical, answer
For advanced surgical operation microscope lighting system, some characteristics that optical fiber is exactly utilized are designed.Carry out ear nose larynx or
When narrow abdominal cavity position is performed the operation, general lighting is unable to satisfy surgical light demand, and the lighting method generally used is coaxially to shine
Bright and oblique illumination is the angle for calculating its oblique illumination according to the angle of divergence and off-axis degree of optical fiber, is utilized respectively plane optical fiber
Special light source is realized with cuneiform optical fiber.The accurate measurement of optical fiber quality parameter has important meaning to optical fiber processing and production
Justice, be judge optical fiber whether He Ge foundation.Therefore, in the factory of this type optical fiber of mass production, it is necessary to rapidly and accurately survey
Measure the optical fiber qualities parameters such as its angle of divergence, off-axis degree.
In actual use, many mechanisms are developing beam analysis system, but the generally existing function list of existing product
One, the problems such as practicability is low, structure is complicated and measurement accuracy is poor, moreover, it is needle that the object of these laser beam analyzers research, which is not,
To optical fiber, but it is directed to laser.Therefore, aiming at the shortcomings in the prior art, it is necessary to provide a kind of for optical fiber parameter survey
The system of amount.
Utility model content
The purpose of the utility model is to provide a kind of Optical fibre parametric measurement systems, to realize that the parameter to single mode optical fiber carries out
Measurement provides hardware foundation.
The embodiment of the present application provides a kind of Optical fibre parametric measurement system, comprising: laser light source, fiber clamp, camera, two dimension
Electric angle position platform, three-D electric translation stage, host computer, fiber optic collimator controller；
The laser light source is for generating laser；For the fiber clamp for fixing testing fiber, the fiber clamp is solid
It is scheduled on the platform of the two-dimentional electric angle position；Light spot image information is transmitted to by the camera for acquiring light spot image information
The host computer, the camera are fixed on the three-D electric translation stage；The host computer and the fiber optic collimator controller
Connection, the fiber optic collimator controller are connect with two-dimentional electric angle position platform, the three-D electric translation stage respectively.
Preferably, the fiber clamp setting is fluted, and the groove is for placing the testing fiber.
Preferably, the response wave length of the laser light source is 400nm~1100nm.
Preferably, the light spot image information of the camera acquisition is sent to the host computer by USB or cable.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
In the embodiment of the present application, stable laser is generated by laser light source, and testing fiber is fixed on fiber clamp
In, it after laser passes through testing fiber, is irradiated on the area array sensor of camera and forms hot spot, camera believes the light spot image of acquisition
Breath is transmitted to host computer, and host computer carries out light spot profile extraction, location spot center according to light spot image information；Testing fiber
Beam exit end is fixed on the platform of two-dimentional electric angle position by fiber clamp, and camera is fixed on three-D electric translation stage, two dimension
Electric angle position platform and three-D electric translation stage form one five dimension collimation adjustment device, fiber optic collimator controller and host computer collaboration
Five dimension collimation adjustment devices of control, to ensure that outgoing beam and the area array sensor of camera of testing fiber are mutually perpendicular to；It is to be measured
After optical fiber reaches collimating status, the relevant parameter of optical fiber is calculated by host computer, and the number such as show the angle of divergence of optical fiber, off-axis degree
According to.System provided by the utility model can be used for measuring the angle of divergence and off-axis degree of single mode optical fiber, simple with operation,
Advantage low in cost.
Detailed description of the invention
It, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution in the present embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is one embodiment of the utility model, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of structural schematic diagram of Optical fibre parametric measurement system provided by the embodiment of the utility model；
Fig. 2 is the signal of optical fiber beam imaging in a kind of Optical fibre parametric measurement system provided by the embodiment of the utility model
Figure；
Fig. 3 is the schematic diagram of the optical fiber beam angle of divergence；
Fig. 4 is the schematic diagram of cuneiform optical fiber off-axis degree；
Fig. 5 is the schematic diagram of the cuneiform optical fiber angle of divergence.
Wherein, 1- laser light source, 2- testing fiber, 3- fiber clamp, 4- camera, 5- two dimension electric angle position platform, 6- are three-dimensional
Motorized precision translation stage, 7- host computer, 8- fiber optic collimator controller.
Specific embodiment
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
Technical solution is stated to be described in detail.
Present embodiments provide a kind of Optical fibre parametric measurement system, as shown in Figure 1, include laser light source 1, fiber clamp 3,
Camera 4, two-dimentional electric angle position platform 5, three-D electric translation stage 6, host computer 7, fiber optic collimator controller 8.
Wherein, the laser light source 1 is for generating laser, and the response wave length used is 400nm~1100nm.
The fiber clamp 3 is for fixing testing fiber 2, specifically, being provided with one in the fiber clamp 3 can put
The groove of the testing fiber 2 is set, the output end of the testing fiber 2 can be placed in institute after opening by the fiber clamp 3
It states in fiber clamp 3.The fiber clamp 3 is fixed on two-dimentional electric angle position platform 5, and two dimension electric angle position platform 5 is used
In the adjusting fiber clamp 3 in the position of X-direction, Y direction, to adjust the direction of the testing fiber.
Light spot image information is transmitted to the host computer 7 for acquiring light spot image information by the camera 4；Specifically
, the light spot image information that the camera 4 acquires is sent to the host computer 7 by USB or cable.The camera 4 is fixed on
On the three-D electric translation stage 6, the three-D electric translation stage 6 is for adjusting the camera 4 in X-direction, Y direction, Z
The position of axis direction.
The fiber clamp 3 is with the camera 4 in same level.Laser is irradiated to after passing through the testing fiber 2
Hot spot is formed on the area array sensor of the camera 4, as shown in Figure 2.
The host computer 7 and the fiber optic collimator controller 8 connection, the fiber optic collimator controller 8 is respectively with described two
Tie up electric angle position platform 5, the three-D electric translation stage 6 connection；The fiber optic collimator controller 8 is used to cooperate with the host computer 7,
The adjusting of two-dimentional electric angle position platform 5, the three-D electric translation stage 6 is controlled.The i.e. described two-dimentional electric angle position platform 5
With the three-D electric translation stage 6 constitute one five dimension collimation adjustment device, by the fiber optic collimator controller 8 and it is described on
The Collaborative Control of position machine 7, it is ensured that area array sensor of the outgoing beam of the testing fiber 2 perpendicular to the camera 4.
The host computer 7 calculates according to light spot image information for showing light spot image information and obtains optical fiber parameter.
In measurement, stable laser is generated after laser passes through the testing fiber 2 by the laser light source 1 and is irradiated to
Hot spot is formed on the area array sensor of the camera 4, the light spot image information of acquisition is sent to the host computer by the camera 4
7, the host computer 7 to light spot image information carry out series of preprocessing (such as image gray-scale transformation, ambient noise removal, figure
As smoothing processing, carrying out image threshold segmentation) after, light spot profile is obtained using light spot profile acquisition algorithm, uses centralized positioning algorithm
Location spot center calculates the relevant parameter of optical fiber, by host computer data display window show the final optical fiber angle of divergence and partially
Axis degree.
Before the relevant parameter for calculating optical fiber, need to collimate optical fiber.Due to the beam exit end of the testing fiber 2
It is fixed on two-dimentional electric angle position platform 5 by the fiber clamp 3, the camera 4 is fixed on the three-D electric translation stage 6
On, two dimension electric angle position platform 5 and the three-D electric translation stage 6 form one five dimension collimation adjustment device, described upper
Machine 7 calls collimation control program, and the rotation or movement of collimation adjustment device are tieed up by the fiber optic collimator controller 8 control five,
And then the position of the testing fiber 2 is controlled, guarantee the outgoing beam of the testing fiber 2 and the area array sensing of the camera 4
Device is mutually perpendicular to.
Specifically, the camera 4 is by the light spot image data transmission acquired in real time to the host computer 7, the host computer 7
After carrying out series of preprocessing to data, light spot profile is obtained using light spot profile acquisition algorithm, is mainly used based on morphology
Edge detection and edge detection based on differential process, using centralized positioning algorithm location spot center, the hot spot that will be obtained
Image is shown to hot spot real-time display window.The host computer 7 obtains current spot center data according to centralized positioning algorithm, so
Judge whether hot spot is located in the center limited area of the camera 4 afterwards, if not in the limited area, by described in fine tuning
Hot spot is adjusted to the center limited area of the camera 4 by three-D electric translation stage 6；Then flat by adjusting the three-D electric
Moving stage 6 is moved forward and backward the camera 4, adjust the testing fiber 2 between the camera 4 at a distance from, acquire the light of different distance
Spot image, if spot center changes in coordinates amount is in threshold range, it is believed that at this time the outgoing beam of the testing fiber 2 with it is described
Camera 4 is mutually perpendicular to；If the variable quantity of spot center coordinate, outside threshold range, the host computer 7 is determined by collimation strategy
Parameter that two dimension electric angle position platform 5 needs to adjust (including roll angle and pitch angle i.e. θXAnd θY) value, then pass through the light
Fine collimating controller 8 drives two-dimentional electric angle position platform 5 to be adjusted, and recycles the step up to the variation of spot center coordinate
Amount converges in threshold range.After the testing fiber 2 reaches collimating status, the host computer 7 is according to light spot image information meter
The parameters such as spot radius, the angle of divergence and off-axis degree are calculated, show the angle of divergence and partially of the testing fiber 2 in result data window
The data such as axis degree.
Fig. 3 is optical fiber beam angle of divergence schematic diagram, wherein θ indicates the far-field divergence angle of optical fiber beam, ω0Indicate optical fiber
The waist radius of light beam.The utility model is suitable for the measurement of the single mode optical fiber angle of divergence, after laser passes through testing fiber, single-mode optics
Fine outgoing beam is similar to the optical field distribution of Gaussian beam, can approximation regard Gaussian Profile as.
Since cuneiform optical fiber is different from plane optical fiber, cuneiform optical fiber is usually to make a lenticule in the end of optical fiber,
To improve optical fiber light-receiving area, increases optical fiber and receive light source power or make the significantly more efficient converged light of optical fiber output optical power
On the photosurface of detector.For cuneiform optical fiber, fiber port outgoing laser beam cross section hot spot be it is oval,
Light spot shape is symmetrical about main shaft.Cuneiform optical fiber for experiment is the end surface grinding wedgewise in optical fiber, after by special
Manufacturing process processes optics microtrabeculae lens at its tip and is formed, and lenticule and optical fiber main shaft shape are at a certain angle, this
Angle is called the off-axis degree of cuneiform optical fiber, therefore detects the mass parameter of cuneiform optical fiber in addition to needing detection fiber outgoing beam
Spot center, except the angle of divergence of hot spot beamwidth and light beam, it is also necessary to the off-axis angle of detection fiber.Fig. 4 is cuneiform optical fiber
The schematic diagram of off-axis degree, θ1Indicate that off-axis degree, Fig. 5 are the schematic diagram of the cuneiform optical fiber angle of divergence, θ indicates the angle of divergence.
It is tested using above-mentioned Optical fibre parametric measurement system and method, experimental data shows using the utility model
The measurement accuracy of the optical fiber angle of divergence and off-axis degree that the optical measuring system of offer measures can achieve ± 2%.
It should be noted that the purpose of the utility model is to provide the hardware foundation of Optical fibre parametric measurement, measurement method and
The explanation of principle is intended merely to provide application scenarios, illustrates operating method etc., so as to be best understood from how using this system into
Row Optical fibre parametric measurement, system provided by the utility model itself are not related to the improvement on the methods of algorithm, program.
To sum up, a kind of Optical fibre parametric measurement system provided by the embodiment of the utility model includes at least following technical effect:
(1) the utility model can be used for measuring the single mode optical fiber angle of divergence and off-axis degree, and measurement accuracy is relative to machine
Tool formula measuring instrument has large increase.Laser beam analyzer (measurement for being only used for laser beam) precision more mature at present
It is ± 3%, the measurement accuracy of the optical fiber angle of divergence and off-axis degree that measure using system provided by the utility model can achieve ±
2%.
(2) the utility model operation is simple, result is accurate objective, low in cost, it can be achieved that full-automatic collimation adjustment, with
Manual adjustment is compared, and measuring accuracy and measuring speed can be improved in the utility model, can reduce subjective error.Domestic development at present
Light velocity measurement instrumental function is incomplete, the degree of automation is lower, much there is also the experimental stage can not commercialization, this reality
It is stronger with novel practicability.Relative to the light velocity measurement instrument of external same measurement accuracy, the utility model lower production costs.
It should be noted last that the above specific embodiment is only to illustrate the technical solution of the utility model rather than limits
System, although the utility model is described in detail referring to example, those skilled in the art should understand that, it can be right
The technical solution of the utility model is modified or replaced equivalently, without departing from the spirit and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (4)
1. a kind of Optical fibre parametric measurement system characterized by comprising laser light source, fiber clamp, camera, two-dimentional electric angle
Position platform, three-D electric translation stage, host computer, fiber optic collimator controller；
The laser light source is for generating laser；For fixing testing fiber, the fiber clamp is fixed on the fiber clamp
On the platform of the two dimension electric angle position；Light spot image information is transmitted to described by the camera for acquiring light spot image information
Host computer, the camera are fixed on the three-D electric translation stage；The host computer is connected with the fiber optic collimator controller,
The fiber optic collimator controller is connect with two-dimentional electric angle position platform, the three-D electric translation stage respectively.
2. Optical fibre parametric measurement system according to claim 1, which is characterized in that the fiber clamp setting is fluted,
The groove is for placing the testing fiber.
3. Optical fibre parametric measurement system according to claim 1, which is characterized in that the response wave length of the laser light source is
400nm~1100nm.
4. Optical fibre parametric measurement system according to claim 1, which is characterized in that the light spot image letter of the camera acquisition
Breath is sent to the host computer by USB or cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821757263.7U CN208953241U (en) | 2018-10-29 | 2018-10-29 | A kind of Optical fibre parametric measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821757263.7U CN208953241U (en) | 2018-10-29 | 2018-10-29 | A kind of Optical fibre parametric measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208953241U true CN208953241U (en) | 2019-06-07 |
Family
ID=66743283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821757263.7U Active CN208953241U (en) | 2018-10-29 | 2018-10-29 | A kind of Optical fibre parametric measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208953241U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163884A (en) * | 2018-10-29 | 2019-01-08 | 武汉理工大学 | A kind of Optical fibre parametric measurement system and method |
-
2018
- 2018-10-29 CN CN201821757263.7U patent/CN208953241U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163884A (en) * | 2018-10-29 | 2019-01-08 | 武汉理工大学 | A kind of Optical fibre parametric measurement system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109163884A (en) | A kind of Optical fibre parametric measurement system and method | |
| CN103900493B (en) | Micro-nano structure topography measurement device and method based on digital scan white light interference | |
| CN105181298B (en) | Multiple reflections formula confocal laser Long focal length measurement method and apparatus | |
| CN108332708A (en) | Laser leveler automatic checkout system and detection method | |
| CN104913732B (en) | The normal tracking mode non-spherical measuring method and system interfered based on recombination laser | |
| CN104792798A (en) | Total internal reflection illumination technology-based subsurface damage measuring apparatus and method thereof | |
| CN109187430A (en) | Postposition is divided pupil laser differential confocal index of refraction in lens measurement method and device | |
| CN105758336A (en) | Reflective laser differential confocal curvature radius measuring method and device | |
| US10132716B2 (en) | Method for measuring mode field diameter of single-mode fibre using optical integration technique employing gradually variable aperture | |
| CN103542813A (en) | Laser diameter measuring instrument based on boundary differential and environmental light self-calibration | |
| CN103292731B (en) | The apparatus and method that a kind of panda type polarization-preserving fiber end face geometric parameter detects | |
| CN208953241U (en) | A kind of Optical fibre parametric measurement system | |
| CN107747913A (en) | A kind of pipe bending degree measurement apparatus and method | |
| CN106767675B (en) | The optimization method of f-theta measuring system based on light pencil | |
| CN107782697A (en) | The confocal Infrared Lens element refractive index measurement method of broadband and device | |
| CN114046740B (en) | System for measuring diameter of optical waveguide mode field | |
| CN103654721B (en) | A kind of method that cornea summit is accurately directed at | |
| CN109000797A (en) | A kind of radium-shine cigarette-brand chromatism measurement method | |
| CN208887783U (en) | A kind of semiconductor laser beam quality test device | |
| CN107860776A (en) | A kind of defect of lens detection means and method | |
| CN111006854A (en) | Device and method for testing diffraction efficiency of micro-nano structure lens | |
| CN205374301U (en) | Measure device of solution strength | |
| CN207832690U (en) | A kind of defect of lens detection device | |
| CN206095586U (en) | Novel optic fibre refraction index profile measures device | |
| CN110986836B (en) | High-precision roughness measuring device based on annular core optical fiber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |