Electromechanical wavelength tuning of double-membrane photonic crystal cavities

Abstract

We present a method for tuning the resonant wavelength of photonic crystal cavities (PCCs) around 1.55 um. Large tuning of the PCC mode is enabled by electromechanically controlling the separation between two parallel InGaAsP membranes. A fabrication method to avoid sticking between the membranes is discussed. Reversible red/blue shifting of the symmetric/anti-symmetric modes has been observed, which provides clear evidence of the electromechanical tuning, and a maximum shift of 10 nm with < 6 V applied bias has been obtained.

9 pages, 3 figures

References in corpus (2)

• Dynamic release of trapped light from an ultrahigh-Q nanocavity via adiabatic frequency tuning
• Local Quantum Dot Tuning on Photonic Crystal Chips

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