Optical fiber connector, method for manufacturing optical fiber connector, method for connecting optical fiber connector and optical fiber, and assembled body of optical fiber connector and optical fiber

Abstract

The present invention relates to an optical fiber connector wherein: an optical fiber guide member includes a fiber guide-side substrate portion constituting a part of a substrate, a fiber guide pattern, and a cover material; an optical waveguide includes an optical waveguide-side substrate portion adjacent to the fiber guide-side substrate portion, an optical waveguide-side first lower cladding layer, an optical signal transmitting core pattern, and an optical waveguide-side upper cladding layer; the fiber guide pattern is configured from a plurality of guide members parallel to each other at intervals; a space formed with the adjacent two guide members, the fiber guide-side substrate portion, and a fiber guide-side cover material portion constitutes a fiber guide groove; and the fiber guide groove is present on the extension line in the optical path direction of the optical signal transmitting core pattern. In the optical fiber connector, an optical fiber and an optical waveguide core are easily aligned with each other, the optical fiber is easily mounted, and a positional shift of the optical fiber is not easily generated.

Description

technical field [0001] The present invention relates to an optical fiber connector, a manufacturing method thereof, a method for connecting an optical fiber connector and an optical fiber, and an assembly of an optical fiber connector and an optical fiber, and in particular relates to a position where the optical fiber and the optical waveguide core are easily aligned and the optical fiber is unlikely to occur regardless of the substrate Offset optical fiber connector, its manufacturing method, connection method of optical fiber connector and optical fiber, assembly of optical fiber connector and optical fiber. Background technique [0002] In general, an optical cable (also referred to as an optical fiber cable) is capable of high-speed communication of a large amount of information, and thus is widely used in home and industrial information communication. In addition, for example, automobiles are equipped with various electrical devices (eg, car navigation systems, etc.), ...

AI Technical Summary

Problems solved by technology

[0005] However, in such an optical fiber connector, it is necessary to cut the optical fiber mounting groove by dicing, so the work efficiency is poor. In addition, the optical waveguide core is produced by photolithography and etching in a process other than the groove cutting process, so sometimes The positional deviation of the fiber will occur

Furthermore, in the above method, if it is not formed on a hard substrate with good dimensional stability such as a silicon wafer, the optical fiber will have a greater positional deviation.

[0006] In addition, there is a method of connecting an optical fiber and an optical waveguide in which a waveguide substrate on which an optical waveguide is formed and an optical connector with an optical fiber are mounted on different holders and the end faces of the holders are adhered to each other as described in Patent Document 3. However, the number of processes to complete the connection is large and complicated

[0007] In addition, regarding the optical fiber connector described in Patent Document 4 in which an optical fiber mounting groove and an optical waveguide are arranged side by side, an optical fiber fixing adhesive and an optical fiber are introduced into the optical fiber mounting groove and pressed from the fiber mounting side with a fixing jig, Align the optical waveguide and the optical fiber, but there is the following problem: If the fixing jig is not kept horizontal when the optical fiber is fixed, the axis of the optical fiber and the optical waveguide will shift, resulting in light loss

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