Optical module and method of producing optical module

Abstract

An optical module where breaking of an optical fiber is avoided to improve ease of handling in the assembly process of the module and mechanical reliability of the module including resistance to impact. The optical module has a PD (3) and an optical fire (5a) that are mounted on the same substrate (2). A covering section (6) for covering the optical fiber (5a) is placed on a deep trench section (24) having a predetermined depth in the Z2 direction from a V-groove-formed surface where a V-groove for mounting the optical fiber (5a) is formed. The distance h from an end face (3a) of the PD (3) to an end face (24a) of the deep trench section (24) and the distance k from an end face (51a) of the optical fiber (5a) to an end face (6a) of the covering section (6) satisfy the relationship of h>k. The optical fiber (5a) is mounted with both the end face (6a) of the covering section (6) and the end face (24a) of the deep trench section (24) made to be in contact with each other.

Description

technical field [0001] The invention relates to an optical module in which an optical fiber and an optical component are integrally integrated on a substrate and a manufacturing method of the optical module. Background technique [0002] In recent years, with the increase in speed of data communication, instead of communication using metal cables, optical communication enabling broadband communication with low loss has become popular. For optical communication, positioning when connecting cables is important, for example, forming a V-shaped groove (hereinafter referred to as V-groove) on the substrate, and fixing the optical fiber in this V-groove, thereby positioning the optical fiber (For example, refer to Patent Document 1). [0003] In addition, optical axis alignment using V-grooves for optical fiber mounting is also performed for optical modules in which optical fibers and various optical components are integrally integrated on a substrate. Optical components refer t...

AI Technical Summary

Problems solved by technology

[0007] However, if Figure 6B As shown, in the existing optical module 31, since the uncovered optical fibers 35a, 35b are in contact with the ends 36 of the V-grooves 323a, 323b, the parts where the optical fibers 35a, 35b are fixed on the substrate 32 and the unfixed Stress concentration occurs at some boundaries, and the optical fibers 35a and 35b may break

Therefore, there are problems with mechanical reliability such as operability and impact resistance during the assembly process.

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