Manufacturing method of end prefabricated capillary type optical fiber

Abstract

The invention aims to provide the manufacturing method of the capillary type optical fiber with the prefabricated end, so that not only can the fiber inlet length be ensured, but also components can be prevented from being scrapped; the method comprises the following steps: S1, cutting a 0.9 tightly-packaged optical cable according to the required length of 2 times + 10cm of an optical fiber; andS2, adding connectors of corresponding models at the two ends of the optical cable to form an optical jumper wire; testing insertion loss of two ends, enabling qualified products to flow into a next channel, cutting off damaged connectors from defective products, and adding heads again; S3, cutting off the optical jumper wire according to the required length of + 5 mm, and obtaining two tail fibers with the same length; the beneficial effects of the invention are that 1, a connector prefabrication mode is adopted, so that the length of the optical fiber meets the requirements of a customer onthe premise that the technical requirements are met; and 2, the prefabricated member is put into assembly, and because the connector is prefabricated, an optical signal is loaded to an assembly part through the adapter, so that the link loss is greatly reduced, the interference factor of assembly is reduced, the assembly time is shortened, and the single-shift yield is improved 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] The conventional PLC splitter or WDM single-fiber input end is a capillary drawn by a prefabricated rod, and a tapered hole is made at the end of the capillary, and a special epoxy glue is injected into the capillary, and then a 250um bare optical fiber is inserted. 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 entry (0.9mm wire diameter) of the mini PLC splitter or WDM finished pro...

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