Open AccessDevelopment of high-density single-mode polymer waveguides with low crosstalk for chip-to-chip optical interconnection
Author(s) -
Atsushi Sugama,
Kenichi Kawaguchi,
Motoyuki Nishizawa,
Hidenobu Muranaka,
Yasuhiko Arakawa
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.024231
Subject(s) - crosstalk , interconnection , materials science , optics , chip , fabrication , waveguide , optoelectronics , refractive index , single mode optical fiber , optical fiber , physics , telecommunications , computer science , medicine , alternative medicine , pathology
High-density single-mode polymer waveguides were fabricated for chip-to-chip optical interconnection. The waveguides were designed as minimized mode field diameters for the lowest inter-channel crosstalk caused by mode coupling. The optimum relative index difference chosen was 1.2% to ensure compatibility with low crosstalk and wide fabrication tolerances. The 60-mm-length linear waveguides demonstrated a low propagation loss of 0.6 dB/cm and -45 dB crosstalk at 1310 nm. Also, a new crosstalk mechanism for a curved waveguide was revealed.