MEMS-enabled tuneable optical coupling between optical microsphere resonators and optical ﬁbre waveguides is reported. We describe the design, fabrication and experimental characterization of a MEMS platform, based on electrothermal actuators, which controls the resonator-to-waveguide separation. We compare the simulated and experimental displacements of the actuators in an unloaded and loaded state, where the load is a 1 mm optical spherical resonator. We then demonstrate the proof of concept application of selective wavelength dropping using the MEMS platform by modulating the coupling between the spherical resonator and a tapered optical ﬁbre waveguide.
- microsphere whispering gallery
- optical ﬁbre waveguides
RCUK Academic Fellowship, Centre for Microsystems and Photonics, Dept of Electronic and Electrical Engineering, Univeristy of Strathclyde
Flockhart, Gordon (Recipient), Sep 2009
Prize: Fellowship awarded competitively