Patent ID: 7646948

Claim:
A multi-channel optical transceiver module for optical transmission and reception, comprising: two or more optical waveguide films, each flexible optical waveguide film including: two waveguide cores, each of the two waveguide cores having a first core, a second core and an optical converting part and capable of converting a path of an optical signal from one of the first and second cores toward the other one of the first and second cores within the flexible optical waveguide film; a clad surrounding the two waveguide cores; an air void located inside the waveguide film; and two interfaces defining the air void, wherein each of the two interfaces is disposed at the optical converting part of each of the two waveguide cores and converting the path of the optical signal, and the two or more flexible optical waveguide films are formed one over another in a direction substantially perpendicular to the path of the optical signal.