Slow and Superluminal Light Pulses Via EIT in a 20-m Acetylene-Filled Photonic Microcell

Author

Wheeler, Natalie V. ; Light, Philip S. ; Couny, Francois ; Benabid, Fetah

Author_Institution

Phys. Dept., Univ. of Bath, Bath, UK

Volume

28

Issue

6

fYear

2010

fDate

3/15/2010 12:00:00 AM

Firstpage

870

Lastpage

875

Abstract

We have developed an all-fiber system where we generate electromagnetically induced transparencies in a 20-m acetylene-filled photonic microcell. Using this system, pulses of probe light were delayed and advanced by up to 5 and 1 ns, respectively. The delay/advance is tunable through the probe detuning and the coupling Rabi frequency. Through optimization of experimental parameters such as acetylene pressure, coupling laser power and decoherence rates it is shown that a pulse delay of 7 ns/m is possible. Limitations imposed on the fiber length by resonance group velocity dispersion and spectral reshaping are also discussed. In addition to optical buffering, we suggest a slow-light-based fiber optical gyroscope with an enhanced SNR of ~92.

Keywords

fibre optic gyroscopes; optical delay lines; transparency; EIT; acetylene pressure; acetylene-filled photonic microcell; all-fiber system; coupling Rabi frequency; decoherence rates; electromagnetically induced transparencies; fiber length; laser power; optical buffering; probe detuning; probe light; resonance group velocity; slow-light-based fiber optical gyroscope; spectral reshaping; superluminal light pulses; Electromagnetically induced transparency (EIT); optical fiber delay lines; optical interferometry; slow light;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2009.2037443

Filename

5340533