Journal
OPTICS EXPRESS
Volume 19, Issue 14, Pages 13557-13564Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.013557
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- Japan Society for the Promotion of Science
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We experimentally demonstrate a tunable slow-light device consisting of all-pass Si microrings. A compact device of 0.014 mm(2) footprint is fabricated by using CMOS-compatible process, and its center wavelength, bandwidth and delay are continuously tuned by integrated heaters. The tuning range is 300 ps at fixed wavelengths with a 1 nm bandwidth. Eye opening of 40 Gbps non-return-to-zero signals is observed at up to a 150 ps delay and a 4 bit buffering capacity is confirmed, which corresponds to a spatial buffering density of 0.29 kbit/mm(2). (C) 2011 Optical Society of America
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