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Frontiers in Optics

Slow Light in Optical Fibers

Alexander L. Gaeta

Published Jan 1, 2007• 0 citations
Publisher

Abstract

We describe our recent work on producing all-optical, tunable delays in optical waveguides, including schemes that can operate at high bandwidths suitable for telecommunications. Article not available.
DOI
10.1364/ls.2007.lwe3

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We demonstrate optically tunable delays in a silicon-on-insulator planar waveguide based on slow light induced by stimulated Raman scattering (SRS). Inside an 8-mm-long nanoscale waveguide, we produce a group-index change of 0.15 and generate controllable delays as large as 4 ps for signal pulses as short as 3 ps. The scheme can be implemented at bandwidths exceeding 100 GHz for wavelengths spanning the entire low-loss fiber-optics communications window and thus represents an important step in the development of chip-scale photonics devices that process light with light.