Manufacturing method of 1*2 optical fiber beam splitter based on convex cone welding

Abstract

The invention belongs to the technical field of optical fiber devices and relates to a manufacturing method of a 1*2 optical fiber beam splitter based on convex cone welding. Staggered convex cone welding is conducted on a single mode fiber A, a single mode fiber B and a single mode fiber C by using a welding machine. The manufacturing method comprises the steps that coating layers of the single mode fiber A, the single mode fiber B and the single mode fiber C are stripped, end faces are cut flat, the single mode fiber A is put at one end of the welding machine, the single mode fiber B and thesingle mode fiber C are put at the other end of the welding machine, the staggering distance between the single mode fiber A and the single mode fiber B and the single mode fiber C is adjusted according to different target splitting ratio, and welding parameters are adjusted to form convex cone welding. The method adopts staggered convex cone welding, welding is simple, the repeatability is high,the diameter at the splitting position is larger, the mechanical strength is high, and the splitting ratio is adjustable.

Description

technical field [0001] The invention belongs to the technical field of optical fiber devices, and relates to a method for manufacturing a 1x2 optical fiber beam splitter based on convex cone fusion. Background technique [0002] Optical fiber beam splitter is a kind of optical fiber passive device used for transmitting and distributing optical signals. Optical fiber beam splitters generally have the following characteristics: First, the device is composed of optical fibers and is an all-fiber device; second, the splitting and combining of optical fields are mainly achieved through mode splitting; third, optical signal transmission has directional . According to the beam splitting principle of light, people have designed a variety of optical fiber beam splitter structures. Including: X-type fiber splitter, star fiber splitter, double clad fiber splitter, fiber Bragg grating splitter, long period fiber grating splitter, Bragg fiber splitter, photonic crystal fiber splitter ...

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problems of difficult manufacturing methods, low mechanical strength, and difficult adjustment of the splitting ratio of current optical fiber beam splitters, and mainly designs a manufacturing method of a 1×2 optical fiber beam splitter based on convex cone dislocation fusion

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