Patent ID: 7046876
Filing Date: 2006-05-16
Classification: G02B

Abstract:
1. An interleaver, comprising: a dual collimator combined with a first optical fiber acting as a light input port and one end of a second optical fiber spaced apart from the first optical fiber by a predetermined distance, the dual collimator switching a light advancing along the first and second optical fibers into a parallel light; a beam splitter arranged so that one surface is opposite to the dual collimator, the beam splitter transmitting one half of an input light and reflecting the other half of the input light; a single collimator arranged to be opposite to the other surface of the beam splitter, the single collimator being combined with the other end of the second optical fiber so as to switch a light advancing toward the other end of the second optical fiber into a parallel light; and an output optical fiber arranged to be opposite to the other surface of the beam splitter and acting as a light output port, wherein the dual collimator, the beam splitter, the single collimator and the output optical fiber are arranged so that the first optical fiber and the single collimator are optical-axially aligned with the beam splitter interposed therebetween and one end of the second optical fiber and the output optical fiber are optical-axially aligned with the beam splitter interposed therebetween.