Optical transmission and receiving device for implementing passive alignment of components and method for passively aligning components

摘要

An optical device for implementing passive alignment of parts and a method therefor, more particularly an optical device and a method therefor that utilize an alignment reference part arranged on the substrate to passively align an optical element part with a lens-optical fiber connection part. For the passive alignment of parts, connection pillars of an alignment reference part are coupled to substrate holes, one or more light-emitting elements and one or more light-receiving elements are aligned in a row in a particular interval with respect to alignment holes arranged opposite each other in the alignment reference part, a lens-optical fiber connection part is aligned with respect to the alignment holes, and an optical fiber is aligned with the optical alignment point at a surface of a prism forming a portion of the lens-optical fiber connection part.

主权项

1. A method for passive alignment of parts, the method comprising:
coupling connection pillars of an alignment reference part to holes in a substrate; aligning one or more light-emitting elements and one or more light-receiving elements in a row in a particular interval with respect to alignment holes arranged opposite each other in the alignment reference part; aligning a lens-optical fiber connection part with the alignment reference part by passively coupling the alignment holes with alignment pillars included on a lower end of the lens-optical fiber connection part; aligning an optical fiber with an optical alignment point at a surface of a prism forming a portion of the lens-optical fiber connection part; and securing the optical fiber with an optical fiber pin; covering at least a portion of the one or more light-emitting elements with a metal case; and coupling the metal case with a case securing pin, wherein the alignment reference part is bent in an upper surface, a body, and a lower surface thereof to form a substantially rectangular receptacle shape, and the alignment reference part has the alignment holes for use as alignment reference points on each of the upper surface and the lower surface, and connection pillars for connecting to substrate holes formed in the substrate.