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Published December 8, 2003 | public
Journal Article Open

Electrically tunable ring resonators incorporating nematic liquid crystals as cladding layers


We have demonstrated electrical tuning in ring resonators fabricated from silicon-on-insulator wafers by incorporating nematic liquid crystals (NLCs) as the waveguide top and side cladding material. Photolithographically defined electrodes aligned around the ring resonator were used to control the orientation of the NLCs to modulate the cladding refractive index and, hence, the resonant wavelengths of the ring resonator.

Additional Information

© 2003 American Institute of Physics. (Received 20 August 2003; accepted 2 October 2003) The authors would like to thank Luxtera, Inc., and especially Alex Dickinson for technical assistance with this research. Funding for this work by Jag Shah from DARPA under the CS-WDM program (Contract No. N00421-02-D-3223) is also gratefully acknowledged.


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