Patent ID: 9551833
Date: 2017-01-24
CPC Classifications: G02B,H04J

Claim:
1. An apparatus for multiplexing and demultiplexing comprising: a substrate having a first surface and a second surface, wherein the second surface is opposite to the first surface; a first fiber array unit disposed on the first surface of the substrate, wherein a plurality of fibers in the first fiber array unit are arranged in an array on a chip; a first micro lens array disposed on the first surface of the substrate; a plurality of thin film filters disposed on the first surface of the substrate, wherein each thin film filter transmits light having a different wavelength band; wherein light transmitted by a thin film filter is focused by a microlens of the first micro lens array onto a first fiber of the first fiber array unit; wherein the first fiber of the first fiber array unit forms a channel port; and a plurality of mirrors, wherein each mirror reflects light coming from a first thin film filter toward a second thin film filter.