Proof of principle experiment on minimizing propagation time in optical communications

Federico Tommasi; Emilio Ignesti; Lorenzo Fini; Stefano Cavalieri

doi:10.1117/12.2077566

10 March 2015 Proof of principle experiment on minimizing propagation time in optical communications

Federico Tommasi, Emilio Ignesti, Lorenzo Fini, Stefano Cavalieri

Proceedings Volume 9378, Slow Light, Fast Light, and Opto-Atomic Precision Metrology VIII; 93780H (2015) https://doi.org/10.1117/12.2077566
Event: SPIE OPTO, 2015, San Francisco, California, United States

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.

Citation Download Citation

Federico Tommasi, Emilio Ignesti, Lorenzo Fini, and Stefano Cavalieri "Proof of principle experiment on minimizing propagation time in optical communications", Proc. SPIE 9378, Slow Light, Fast Light, and Opto-Atomic Precision Metrology VIII, 93780H (10 March 2015); https://doi.org/10.1117/12.2077566

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