A kind of manufacturing method of end prefabricated capillary type optical fiber

Abstract

The purpose of the present invention is to provide a method for making a prefabricated capillary optical fiber at the end, which can not only ensure the length of the fiber entry, but also avoid the scrapping of components; it includes the following steps: S1: cut according to 2 times the length of the required optical fiber + 10cm 0.9 tight-packed optical cable; S2: Add corresponding type connectors at both ends of the optical cable to make it an optical jumper. Test the insertion and return loss at both ends, the qualified products flow into the next channel, and the defective products cut off the bad connector and re-add the connector; S3: cut the optical jumper according to the required length of +5mm, and obtain 2 pigtails of equal length; the present invention The beneficial effects are as follows: 1. Due to the prefabrication of the connector, it is ensured that the length of the optical fiber meets the customer's requirements under the premise of meeting the technical requirements; 2. When the prefabricated part is put into assembly, the optical signal passes through the prefabricated connector The adapter is loaded on the assembly parts, which greatly reduces the link loss, reduces the interference factors of assembly, shortens the assembly time, and improves the output of a single shift by about 15%.

Description

technical field [0001] The invention belongs to the field of high-density optical fibers, and in particular relates to a method for manufacturing end prefabricated capillary optical fibers. Background technique [0002] Conventional PLC splitter or single-fiber input end of WDM is to punch a tapered hole at the end of the capillary drawn by prefabricated rod, inject special epoxy glue into the capillary, insert 250um bare optical fiber, and use special heating Heat the furnace to the curing temperature of the glue and keep it for a period of time. After the glue is completely cured, the jig grinds an 8° angle at the other end of the capillary. Finished products pass the inspection and are put into storage or flow into the next process. [0003] In some high-density applications, or some overseas high-end customers, there are extremely strict requirements on the length of the fiber (0.9mm wire diameter) of the mini PLC splitter or WDM finished product, and the generally allo...

AI Technical Summary

Problems solved by technology

In the actual production process, due to the unsuccessful addition of the first head, if the second fiber stripping is required, the length of the output fiber at the input end of the product cannot meet the standard, resulting in the scrapping of the product or downgrading to second-class products, which cannot be shipped. It will cause a large loss, and may also lead to delays in delivery