Electromagnetic induction heating device for optical fiber fused biconical taper (FBT)

Abstract

The invention relates to an electromagnetic induction heating device for optical fiber fused biconical taper (FBT). A heat-emitting body conductor accommodated by an electromagnetic induction generator coil emits heat through eddy current generated after the electromagnetic induction generator coil is connected with an alternating current power supply, so that the defects of the conventional flame heating and resistance heating are overcome. The device comprises a heat-emitting body, a shell accommodating the heat-emitting body, the electromagnetic induction generator coil wound at the periphery of the heat-emitting body shell, the alternating current power supply and a medium circulating cooling system which are connected with the electromagnetic induction generator coil, and a system for measuring and controlling the temperature of the heat-emitting body. The device can accurately regulate and control the temperature of a biconical taper area; a plurality of notches are formed on the heat-emitting body, so that a plurality of groups of optical fibers can be subjected to biconical taper in the notches at the same temperature under the same drawing condition simultaneously, yield and consistency of products are greatly improved, and the device is suitable for automatic production; and environmental pollution can be reduced, and the potential safety hazard is reduced.

Description

Technical field [0001] The invention relates to an electromagnetic induction heating device for optical fiber fusion and taper, which can be used to prepare optical passive devices, including optical fiber couplers, optical wavelength division multiplexers, optical fiber reflectors, optical fiber polarization beam splitters, optical attenuators, etc. . Background technique [0002] Optical passive devices are important devices in the field of optical fiber communication. They are usually produced by the fusion tapering method, that is, a section of bare optical fiber of two (or more) optical fibers is melted at a high temperature, and at the same time, tension is applied to heat the melting area to make the fiber bundle It forms a double cone shape, usually called a taper. The quality of the produced optical fiber device largely depends on the high temperature source during the taper process. The ideal high temperature source should be accurate in the temperature of the taper are...

AI Technical Summary

Problems solved by technology

The invention overcomes the shortcomings of the existing flame heating and resistance heating through the eddy current generated by the heating body conductor contained by the electromagnetic induction generator coil after the electromagnetic induction generator coil is connected to the AC power supply, and is a new type of optical fiber fusion pull Cone heating device

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