Fiber geometrical parameter and attenuation coefficient integrated test system

Abstract

The invention discloses a fiber geometrical parameter and attenuation coefficient integrated test system comprising the following units: a halogen tungsten light source serving as the light source fora fiber attenuation test and used for injecting lights into the input end of the fiber through a collimating mirror and a focusing mirror; a spectrum detection module used for measuring the output spectrum of the fiber output end in the fiber attenuation test; the first light emitting diode used for injecting the lights into the input end of a to-be-tested fiber through the collimating mirror andfocusing mirror, and lighting up the fiber core in a fiber geometrical parameter test; a charge coupled cell used for measuring the geometrical parameters of the fiber end face in the fiber geometrical parameter test; a liftable reflector team used for switching optical path functions needed by the current test in the fiber geometrical parameter and attenuation coefficient integrated test, and thus enabling the integrated test equipment to combine the two test functions. The fiber geometrical parameter and attenuation coefficient integrated test system can automatically switch optical paths according to the test flow of different phases, thus reducing manual operations, and fast obtaining the fiber geometrical parameter and attenuation coefficient in one time.

Description

technical field [0001] The invention belongs to the technical field of optical fiber testing, and more specifically relates to a comprehensive testing system for optical fiber geometric parameters and attenuation coefficients. Background technique [0002] The geometric parameters and transmission loss of optical fiber are the two most important indicators that all optical fiber manufacturers must measure before the optical fiber leaves the factory. [0003] The geometric parameters of optical fiber include core diameter, cladding diameter, core-cladding concentricity, core out-of-roundness and cladding out-of-roundness. Geometric parameters not only affect the transmission performance and mechanical properties of the optical fiber, but also have a great influence on the connection loss of the optical fiber. For the geometric parameters of communication optical fibers, ITU-T has clear regulations: regardless of multimode optical fibers or single-mode optical fibers, the out...

AI Technical Summary

Problems solved by technology

[0005] The above two optical fiber parameter indicators generally require two test equipment to be tested separately, and two operators need to be arranged to operate separately on the assembly line, which will consume more manpower

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