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Demonstration of 100 GHz electrically tunable liquid-crystal Bragg gratings for application in dynamic optical networks

Adikan, F.R.Mahamd, Gates, J.C., Dyadyusha, A., Major, H.E., Gawith, C.B.E., Sparrow, I.J.G., Emmerson, G.D., Kaczmarek, M. and Smith, P.G.R. (2007) Demonstration of 100 GHz electrically tunable liquid-crystal Bragg gratings for application in dynamic optical networks Optics Letters, 32, (11), pp. 1542-1544. (doi:10.1364/OL.32.001542).

Record type: Article

Abstract

We demonstrate liquid crystal-based integrated optical devices with >140GHz electrical tuning for potential applications in dynamic optical networks. Bragg wavelength tuning covering five 25GHz WDM channel spacings has been achieved with 170V (peak-to-peak) sinusoidal voltages applied across electro-patterned ITO-covered glass electrodes placed 60µm apart. This tunability range was limited only by the initial grating strength and supply voltage level. We also observed two distinct threshold behaviors that manifest during increase of supply voltage, resulting in a hysteresis in the tuning curve for both TE and TM input light.

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Published date: 1 June 2007

Identifiers

Local EPrints ID: 65759
URI: http://eprints.soton.ac.uk/id/eprint/65759
ISSN: 0146-9592
PURE UUID: 9798c410-ec9d-43ff-96c4-7354b3caa1ca
ORCID for J.C. Gates: ORCID iD orcid.org/0000-0001-8671-5987
ORCID for C.B.E. Gawith: ORCID iD orcid.org/0000-0002-3502-3558

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Date deposited: 23 Mar 2009
Last modified: 19 Jul 2017 00:31

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Contributors

Author: F.R.Mahamd Adikan
Author: J.C. Gates ORCID iD
Author: A. Dyadyusha
Author: H.E. Major
Author: C.B.E. Gawith ORCID iD
Author: I.J.G. Sparrow
Author: G.D. Emmerson
Author: M. Kaczmarek
Author: P.G.R. Smith

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