Open AccessCompact low loss single air interface bends in polymer waveguides
Author(s) -
Jaime Cárdenas,
Lixia Li,
Seung Hyun Kim,
Gregory P. Nordin
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.005314
Subject(s) - microfabrication , materials science , refractive index , optics , fabrication , silicon , polarization (electrochemistry) , optoelectronics , high refractive index polymer , refractive index contrast , medicine , chemistry , alternative medicine , physics , pathology
We report the design, fabrication, and measurement of high efficiency, compact 45 degrees single air interface bends in low refractive index contrast waveguides in a low refractive index material system. Using standard microfabrication techniques, the bends are fabricated on silicon substrates using perfluorcyclobutyl (PFCB) copolymers, which feature a high glass transition temperature and low absorption loss. The measured 45 degrees bends have a loss of 0.30+/-0.03dB/bend for TM polarization and 0.33+/-0.03dB/bend for TE polarization.