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Nonlinear switching using Bragg gratings

Nonlinear switching using Bragg gratings
Nonlinear switching using Bragg gratings
Fibre Bragg gratings (FBGs) consist of a periodic modulation of the refractive index along the core of the fibre. This periodicity creates a photonic bandgap and results in strong reflectivity near the Bragg wavelength. The narrow bandwidth and large dispersion of FBGs makes them ideal for linear dispersion compensator and for add/drop filters in WDM systems. In the nonlinear regime Bragg gratings are bistable devices and thus could potentially form the basis of all-optical switches. Recently we have demonstrated three types of nonlinear switching in Bragg gratings: a simple self-induced nonlinear switch, an all-optical AND gate, and a pump induced switch (the optical pushbroom). To understand these switches it is necessary to recall the basic nonlinear properties of Bragg gratings.
Broderick, N.G.R.
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Taverner, D.
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Richardson, D.J.
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Ibsen, M.
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Laming, R.I.
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Broderick, N.G.R.
4cfa2c7c-097a-48d6-b221-4e92ad1c6aea
Taverner, D.
b8f04b32-4ce1-4d7d-9fd2-298bff142b96
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Ibsen, M.
22e58138-5ce9-4bed-87e1-735c91f8f3b9
Laming, R.I.
c86f359b-9145-4148-bc7d-ae4f3d272ca2

Broderick, N.G.R., Taverner, D., Richardson, D.J., Ibsen, M. and Laming, R.I. (1997) Nonlinear switching using Bragg gratings. IEEE Colloquium on Optoelectronics Integration and Switching, Glasgow, United Kingdom.

Record type: Conference or Workshop Item (Paper)

Abstract

Fibre Bragg gratings (FBGs) consist of a periodic modulation of the refractive index along the core of the fibre. This periodicity creates a photonic bandgap and results in strong reflectivity near the Bragg wavelength. The narrow bandwidth and large dispersion of FBGs makes them ideal for linear dispersion compensator and for add/drop filters in WDM systems. In the nonlinear regime Bragg gratings are bistable devices and thus could potentially form the basis of all-optical switches. Recently we have demonstrated three types of nonlinear switching in Bragg gratings: a simple self-induced nonlinear switch, an all-optical AND gate, and a pump induced switch (the optical pushbroom). To understand these switches it is necessary to recall the basic nonlinear properties of Bragg gratings.

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Published date: November 1997
Venue - Dates: IEEE Colloquium on Optoelectronics Integration and Switching, Glasgow, United Kingdom, 1997-11-01

Identifiers

Local EPrints ID: 76720
URI: http://eprints.soton.ac.uk/id/eprint/76720
PURE UUID: e0421b64-5fed-495e-92f7-13646a090ff1
ORCID for D.J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:34

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Contributors

Author: N.G.R. Broderick
Author: D. Taverner
Author: D.J. Richardson ORCID iD
Author: M. Ibsen
Author: R.I. Laming

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