OPTICAL MODULE WITH PIG-TAILED FIBER AND METHOD TO ASSEMBLY THE SAME

摘要

A method to assemble a pig-tailed optical module and an arrangement thereof are disclosed. The method includes a step to recover the optical coupling efficiency between the optical device in the optical module and the pig-tailed fiber. The recovering method includes a step to iterating the YAG laser welding at a point not points axially distributed with a constant pitch as slightly rotating the optical module around the optical axis in a direction and an opposite direction depending on the improvement and the degradation of the optical coupling efficiency.