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Polymer optical fiber characteristic parameter testing apparatus and its testing method

A tester and polymer technology, applied in the field of optical fiber parameter measuring instruments, can solve the problems of unfavorable measurement concentration and saving, inability to measure polymer fiber optics, single measurement parameters, etc., and achieve simple and easy measurement and calculation process, high The effect of high measurement accuracy, automation and system reliability

Inactive Publication Date: 2004-05-05
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, some optical fiber geometry and optical parameter testing technologies are mainly aimed at quartz optical fibers with thin core diameters, and there are defects such as single measurement parameters, separation of instruments, cumbersome or inconvenient measurement, which is not conducive to the concentration and saving of measurement. Cannot be directly used for polymer optical fiber measurement

Method used

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  • Polymer optical fiber characteristic parameter testing apparatus and its testing method
  • Polymer optical fiber characteristic parameter testing apparatus and its testing method
  • Polymer optical fiber characteristic parameter testing apparatus and its testing method

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Embodiment Construction

[0035] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0036] The lighting source is an ordinary Lambertian light source, and the continuously adjustable attenuator is composed of two polarizing filters (marumi P.L 55mm). The size of the optical fiber, the aperture of the diaphragm is 0.5mm, 0.8mm, 1.5mm, 2.0mm, 3.0mm, and it is a rotary adjustment. The light source, attenuator, microscope objective lens, aperture, CCD camera support and guide rail are for two-dimensional movement, the stage support and guide rail are for three-dimensional movement, and the thread trimmer set on the stage support It is also three-dimensional, and its adjustment range is ±3mm each. The fiber optic clamp is made of K9 glass with a length of 8 cm. The clamp is connected as a whole by a hinge 17. A pair of clamping grooves with a diameter of 1 mm are arranged on it. The end faces and clamping grooves are strictly polished, and the ligh...

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Abstract

A tester for testing the geometric and optical parameters of an optical polymer fibre is composed of an imaging system and an image processing system. Said imaging system consists of light source, attenuator, object carrier with transparent clamper of optical fibre, microscope, optical diaphragm and CCD camera. Its advantages are high accuracy and automation level, and casy regulation. Its test method is also disclosed.

Description

Technical field: [0001] The invention relates to an instrument and method for measuring optical fiber parameters, in particular to an instrument and method for measuring geometric and optical parameters of polymer optical fibers. Background technique: [0002] With the emergence of some new polymer optical fibers (such as fluorine-doped polymer optical fibers, graded index optical fibers, etc.), the wide application of polymer optical fibers in access networks will become one of the most competitive technologies in future all-fiber user networks. one. Compared with silica optical fiber, polymer optical fiber has different core diameter, hardness, loss, bandwidth and communication wavelength, that is, the geometric and optical parameters of the two are different, so the existing silica optical fiber measuring instruments cannot It is directly used for the measurement of polymer optical fiber. At present, standards and test methods for polymer optical fibers have not yet bee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/00
Inventor 马辉王沛明海周大程金西谢建平
Owner UNIV OF SCI & TECH OF CHINA
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