Development of high-density single-mode polymer waveguides with low crosstalk for chip-to-chip optical interconnection

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 compati...

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Bibliographic Details
Published in:Optics express 2013-10, Vol.21 (20), p.24231-24239
Main Authors: Sugama, Akio, Kawaguchi, Kenichi, Nishizawa, Motoyuki, Muranaka, Hidenobu, Arakawa, Yasuhiko
Format: Article
Language:English
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Summary: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.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.21.024231