Manufacturing process of transmission module for high-speed optical communication using laser welding

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package design and process for attaching an optical fiber to an optical communication semiconductor laser module using a laser welding method and more specifically to a package design and a process for attaching an optical fiber for optical transmission, And a manufacturing process of a transmission module for high-speed optical communication using laser welding which can simplify the welding process. The process of fixing the optical fiber ferrule and the ferrule housing finally performed in the conventional module manufacturing process is very complicated. In the present invention, a specially designed optical fiber ferrule housing is used to provide a manufacturing process of a transmission module for high-speed optical communication using laser welding, which is easier to manufacture and improved in performance by modifying an optical fiber ferrule housing and developing a process. (X, y, angle) and longitudinal direction (z) are freely adjusted in a state in which the optical fiber ferrule is held only by the upper outer collet without using the inner collet, and the focused light is arranged to reach the optical fiber at the maximum And a ferrule joint portion is sequentially fixed using a laser welding method so that the optical axis of the laser diode, the lens, and the optical fiber are aligned with each other to obtain the maximum optical coupling efficiency.