Broadband nanoelectromechanical phase shifting of light on a chip

M. Poot, H. X. Tang

Research output: Contribution to journalArticlepeer-review

77 Scopus citations


We demonstrate an optomechanical phase shifter. By electrostatically deflecting the nanofabricated mechanical structure, the effective index of a nearby waveguide is changed and the resulting phase shift is measured using an integrated Mach-Zehnder interferometer. Comparing to thermo-optical phase shifters, our device does not consume power in static operation and also it can operate over large frequency, wavelength, and power ranges. Operation in the MHz range and sub-μs pulses is demonstrated.

Original languageEnglish
Article number061101
JournalApplied Physics Letters
Issue number6
StatePublished - 2 Oct 2014
Externally publishedYes


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