Patent ID: 7274854

Claim:
An optical waveguide comprising: a) a support layer; b) a core layer including a cross-linked polymeric material obtained by UV irradiation of a polyamide having repeating units of formula (I) wherein R 1 , R 2 , and R 3 independently represent hydrogen or a (C 1 -C 6 )-alkyl group, R 4 , R 5 , R 6 , R 7 , R 8 and R 9 independently represent hydrogen, a (C 1 -C 6 )-alkyl group, a (C 1 -C 6 )alkenyl or an aryl group; X is selected from a covalent bond; a (—CH 2 —) y group, wherein y is an integer from 1 to 10; O; S; NR, wherein R is (C 1 -C 4 )alkyl, x is 0-5, m is 1-10, and n is an integer having an average value of from 5 to 50,000, and the deuterated derivatives thereof.