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Proceedings Paper

Compact optical modulators with Si photonic crystals
Author(s): T. Baba; Hong C. Nguyen
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Paper Abstract

We demonstrate the first sub-100 μm silicon Mach-Zehnder modulators (MZMs) that operate at <10 Gb/s, by exploiting low-dispersion slow-light in lattice-shifted photonic crystal waveguides (LSPCWs). We use two LSPCW-MZM structures, one with LSPCWs in both arms of the MZM, and the other with an LSPCW in only one of the arms. Using the first structure we demonstrate 10 Gb/s operation with a operating bandwidth of 12.5 nm, in a device with a phase-shifter length of only 50 μm. Using the second structure, owing to a larger group index as well as lower spectral noise, we demonstrate 40 Gb/s operation with a phase-shifter length of only 90 μm, which is more than an order-of-magnitude shorter than most 40 Gb/s MZMs.

Paper Details

Date Published: 27 February 2013
PDF: 9 pages
Proc. SPIE 8630, Optoelectronic Interconnects XIII, 86300C (27 February 2013); doi: 10.1117/12.2002909
Show Author Affiliations
T. Baba, Yokohama National Univ. (Japan)
Hong C. Nguyen, Yokohama National Univ. (Japan)

Published in SPIE Proceedings Vol. 8630:
Optoelectronic Interconnects XIII
Alexei L. Glebov; Ray T. Chen, Editor(s)

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