The performance of a novel multifunctional acrylate based photo-polymer is
presented. Rapid direct writing of multimode (50 mum square core) cladded w
aveguides, compliant bumps for flip-chip bonding and 45 degrees total inter
nal reflection mirrors for out of plane coupling have been realised using a
high-power 325 nm He:Cd laser with high precision and repeatability. The l
osses are measured to be less than 0.17 dB/cm at 850 nm and less than 0.5 d
B/cm at 1300 nm by cutback method. This custom multifunctional acrylate co-
polymer has been found to be thermally stable up to a temperature of 300 de
grees as determined using DTA-TG analysis. (C) 2001 Elsevier Science B.V. A
ll rights reserved.