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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 11 — Jun. 1, 2007
  • pp: 1542–1544

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

F. R. Mahamd Adikan, J. C. Gates, A. Dyadyusha, H. E. Major, C. B.E. Gawith, I. J.G. Sparrow, G. D. Emmerson, M. Kaczmarek, and P. G.R. Smith  »View Author Affiliations


Optics Letters, Vol. 32, Issue 11, pp. 1542-1544 (2007)
http://dx.doi.org/10.1364/OL.32.001542


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Abstract

We demonstrate liquid-crystal-based integrated optical devices with > 140 GHz electrical tuning for potential applications in dynamic optical networks. Bragg wavelength tuning covering five 25 GHz wavelength-division multiplexing channel spacing has been achieved with 170 V (peak-to-peak) sinusoidal voltages applied across electropatterned indium tin oxide–covered glass electrodes placed 60 μ m 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.

© 2007 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(130.3120) Integrated optics : Integrated optics devices
(230.0230) Optical devices : Optical devices
(230.2090) Optical devices : Electro-optical devices

ToC Category:
Optical Devices

History
Original Manuscript: November 27, 2006
Revised Manuscript: April 4, 2007
Manuscript Accepted: April 4, 2007
Published: May 15, 2007

Citation
F. R. Mahamd Adikan, J. C. Gates, A. Dyadyusha, H. E. Major, C. B. E. Gawith, I. J. G. Sparrow, G. D. Emmerson, M. Kaczmarek, and P. G. R. Smith, "Demonstration of 100 GHz electrically tunable liquid-crystal Bragg gratings for application in dynamic optical networks," Opt. Lett. 32, 1542-1544 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-11-1542

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