On chip tunable micro ring resonator actuated by electrowetting

Romi Shamai, Uriel Levy*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


We demonstrate a tunable on chip polymer waveguide micro ring resonator (MRR) device. The transmission spectrum and extinction ratio are controlled by electrowetting on dielectric (EWOD), via the application of voltage to a droplet. As a result the droplet covers a portion of the MRR waveguide and changes its effective refractive index. This method can be used for efficiently tuning a variety of on chip optical devices, as it offers high index contrast, electrical control and low power consumption.

Original languageAmerican English
Pages (from-to)1116-1125
Number of pages10
JournalOptics Express
Issue number2
StatePublished - 19 Jan 2009


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