Polymer optical fiber precast rod refractivity fine light beam scanning measuring method and device
A technology of optical fiber preform and measuring device, applied in the field of optics
Inactive Publication Date: 2006-05-24
DONGHUA UNIV
View PDF0 Cites 13 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The focusing method is a relatively simple method to measure the refractive index distribution of polymer optical fibers, but this experiment requires a relatively stable light intensity of the laser source, and this method can only measure one of them for optical fibers with a parabolic refractive index distribution. parameter
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 2
[0056] Example 2 is another preform rod 17 with a diameter of 20 mm and a length of 50 mm. The process carried out is the same as that of Example 1, and the test results are shown in FIG. 10 .
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
Login to View More
Abstract
The tester is composed of image forming system and image processing system. The image forming system is composed of light source, attenuator, diaphragm, focusing system, specimen stage and CCD camera setup in sequence on working platform inside case. Optical fiber perform is placed in clamp on the specimen stage. The signal output port of the CCD camera is connected to signal input port of the image process system. Through CCD image technique, combining with computer image processing software, the invention measures refractive index distribution of preformrod in radial by using Monte Carlo algorithm to carry out data operation and process. Features are: simple structure, easy of adjustment and operation, visual, low cost.
Description
technical field [0001] The invention belongs to a method and a device for testing a refractive index in the field of optical technology, in particular to a method and a device for testing the distribution of a refractive index of an optical fiber prefabricated rod. Background technique [0002] With the explosive growth of information and the advent of the information society, large-capacity high-speed transmission network technology is developing rapidly, and its transmission rate and capacity are increasing exponentially every year. Silica optical fiber is used in densely connected access and local area networks and other low-speed networks. Complicated and expensive joining processes increase network costs. Due to its advantages of simple manufacture, cheap price, fast connection, high impact resistance, and radiation resistance, polymer optical fiber is very suitable for short-distance communication in local area networks, and has become an ideal choice for short-distanc...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/84G01N21/41
Inventor 周鸿颖陈家璧邱高
Owner DONGHUA UNIV