MP8 - A Tunable Optical Filter Based on the Electrowetting Controlled Sagging Effect of a Liquid Droplet on a Superhydrophobic Substrate Embedding a Waveguide Bragg Grating

A tunable optical filter combining a waveguide Bragg grating and the electrowetting controlled sagging effect of a liquid droplet is proposed. A tuning range above 40 nm with a bandwidth of 0.6 nm is achieved.