A cycloolefin in copolymeric (COC) optical communication device. The COC optical
communication device includes a core section of functional metallocene cycloolefin
copolymer (f-mCOC) having a refractive index n1 for light transmission,
and a cladding layer of metallocene cycloolefin copolymer (mCOC), having a refractive
index n2 smaller than n1, surrounding the core section and
forming a waveguide structure together with the core section. Due to the fact that
the various components of the optical communication device are comprised of essentially
the same materials, signal transmission loss between heterogeneous interfaces is
prevented, and provides excellent optical properties and superior processability.
