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Opt Lett. 2012 Oct 15;37(20):4236-8. doi: 10.1364/OL.37.004236.

Ultralow-loss silicon ring resonators.

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1
Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.

Abstract

We experimentally demonstrate silicon ring resonators with internal quality factors of Q(0)=2.2×10(7), corresponding to record 2.7 dB/m propagation losses. Importantly, we show that these propagation losses are limited by bend loss, indicating that the propagation loss limit for silicon has not yet been reached.

PMID:
23073422
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