MULTICHANNEL OPTICAL PATH CHANGING DEVICE AND ITS PRODUCTION METHOD

摘要

A multichannel optical path changing device made of resin and constituted of resin optical waveguides and a mirror and used for changing the direction of an optical path. This device has integrally formed cores between which a mirror is interposed and the direction of the optical path of which is changed. The cores of multichannel are simultaneously formed in a state that their positional relationship is maintained. The device can be produced by first or second method. The first method includes a step in which a parallelepiped block of clad resin is formed on a substrate, a core layer of core resin covering the block is formed, and the core layer and the block are selectively etched, thus simultaneously forming cores in which the direction of the optical path is rectagularly changed. The second method includes a step in which a core layer of resin is formed on a substrate and selectively etched, and the cores in which the direction of the optical path is rectagularly changed are simultaneously formed in a state that their positional relationship is maintained.