Method for manufacturing a fiber type coupler.

摘要

The invention relates to a method for manufacturing a fiber type coupler by extending at least two optical fibers (1a; 2a), having their coatings removed, along an optical axis while fusing the optical fibers (1a; 2a) to form a coupler member. The method is improved by the step of adding a tension to the coupler member (A) along the optical axis before the coupler member (A) is fixed to a protective member (13).