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Proceedings Paper

Proof of principle experiment on minimizing propagation time in optical communications
Author(s): Federico Tommasi; Emilio Ignesti; Lorenzo Fini; Stefano Cavalieri
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Paper Abstract

We present an experimental realization of slow and fast light schemes for a few ns long optical pulses that makes use of incoherent interactions in an atomic medium. The combination of such different schemes allows us to demonstrate that the propagation delay acquired in the slow light stage, can be completely recovered in a fast light one. The use of an incoherent interactions scheme makes the control of the propagation dynamics of light pulses easer to realize. Delays up to 13 ns, in slow light regime, and advances up to 500 ps, in fast light regime, are reported when the stages work individually for a 3 ns long pulse. When both stages are switched-on the fast light stage is able to recover a previously induced delay and even to produce an extra advance, with an overall advance up to 1 ns. Since every optical transmission line needs an amplification system to overcome the unavoidable losses, the results suggest the opportunity and perspective of a proper tailoring of the amplification stage for data timing purposes.

Paper Details

Date Published: 10 March 2015
PDF: 11 pages
Proc. SPIE 9378, Slow Light, Fast Light, and Opto-Atomic Precision Metrology VIII, 93780H (10 March 2015); doi: 10.1117/12.2077566
Show Author Affiliations
Federico Tommasi, Univ. degli Studi di Firenze (Italy)
Emilio Ignesti, Univ. degli Studi di Firenze (Italy)
Lorenzo Fini, Univ. degli Studi di Firenze (Italy)
Stefano Cavalieri, Univ. degli Studi di Firenze (Italy)

Published in SPIE Proceedings Vol. 9378:
Slow Light, Fast Light, and Opto-Atomic Precision Metrology VIII
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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