A method for splicing optical fibers

Abstract

The invention provides an optical fiber fusion splicing method, which is used for ultra-fine optical fiber fusion splicing, comprising: (1) removing the coating layer of the optical fiber by 30-40mm, and wiping it clean with anhydrous ethanol; (2) clamping the optical fiber with a clamp, and making the The coated optical fiber protrudes from the jig by 1-2mm; (3) Use a cutting machine to cut the optical fiber, and the cutting angle is ≤1°; (4) Place the cut optical fiber in the fusion splicer for fusion splicing, and wrap the optical fiber Input the layer diameter into the fusion splicer, set the cleaning discharge power as special 100bit to special 200bit, the cleaning discharge time as 60 to 100ms, the distance between fiber end faces 10 to 15μm, the fiber premelting power as special 60bit to special 120bit, and the fiber premelting time as 10~50ms, the main discharge power is special 30bit~special 100bit, the main discharge time is 1500~2000ms, the redischarge power is special 200bit~special 300bit, the redischarge time is 600~800ms, and the fiber alignment method is set to off ; (5) Coating the fusion-spliced ​​optical fiber splicing points by using a coating machine. The optical fiber fusion splicing method provided by the invention is suitable for superfine optical fiber fusion splicing, has good fusion splicing effect, and has practical value in optical fiber technology.

Description

technical field [0001] The invention relates to the technical field of optical fiber fusion splicing, in particular to an optical fiber fusion splicing method. Background technique [0002] Optical fiber is the mainstream transmission medium at present, and has the advantages of transmission bandwidth, large communication capacity, low loss, no electromagnetic interference, small diameter, light weight, and rich source of raw materials. Therefore, it is widely used in communication, TV, and data transmission networks. middle. For fiber optic devices, the diameter of the fiber directly affects the physical volume of the fiber optic device. For example, when making fiber optic gyroscopes, the use of ultra-fine fiber can reduce the size of the fiber optic gyroscope. The same volume of gyroscope can increase the length of the fiber and improve the accuracy of the fiber optic gyroscope. In addition, ultra-fine fiber has low strain under the same curvature radius, which can impro...

AI Technical Summary

Problems solved by technology

At present, the optical fiber fusion technology is mainly aimed at ordinary diameter optical fibers, but there is no suitable fusion splicing method for the fusion of ultra-fine optical fibers. If the fusion splicing method of ordinary optical fibers is directly applied to ultra-fine optical fibers, it will lead to melting of ultra-fine optical fibers. Excessive and other bad phenomena, resulting in failure of fiber fusion splicing