Universiti Teknologi Malaysia Institutional Repository

Giant all-optical tunable group velocity dispersion in an optical fiber

Zhu, Yunhui and Greenberg, Joel A. and Hussein, Nor Ain and Gauthier, Daniel J. (2014) Giant all-optical tunable group velocity dispersion in an optical fiber. Optics Express, 22 (12). pp. 14382-14391. ISSN 1094-4087

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Official URL: http://dx.doi.org/10.1364/OE.22.014382

Abstract

We realize a strongly dispersive material with large tunable group velocity dispersion (GVD) in a commercially-available photonic crystal fiber. Specifically, we pump the fiber with a two-frequency pump field that induces an absorbing resonance adjacent to an amplifying resonance via the stimulated Brillouin processes. We demonstrate alloptical control of the GVD by measuring the linear frequency chirp impressed on a 28-nanosecond-duration optical pulse by the medium and find that it is tunable over the range ± 7.8 ns 2/m. The maximum observed value of the GVD is 109 times larger than that in a typical single-mode silica optical fiber. Our observations are in good agreement with a theoretical model of the process.

Item Type:Article
Uncontrolled Keywords:dispersive materials, linear frequency, observed values, pump fields
Subjects:Q Science
Divisions:Science
ID Code:52977
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:01 Feb 2016 11:53
Last Modified:19 Jul 2018 15:22

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