A dynamic subwavelength pitch grating modulator for continuous Time-Of-Flight ranging with optical mixing

A dynamic subwavelength pitch grating modulator for continuous Time-Of-Flight ranging with optical mixing ■

Joris Roels, Joris Roels, Joris Roels, Ward van der Tempel, Ward van der Tempel, Ward van der Tempel, Daniël Van Nieuwenhove, Daniël Van Nieuwenhove, Daniël Van Nieuwenhove, Riemer Grootjans, Riemer Grootjans, Riemer Grootjans, Maarten Kuijk, Maarten Kuijk, Maarten Kuijk, D. Van Thourhout, D. Van Thourhout, D. Van Thourhout, R. Baets, R. Baets, R. Baets

Abstract ■

Since continuous Time-Of-Flight ranging systems based on electrical mixing run into fundamental limits we designed an optical MEMS (de)modulator/mixer. With our dynamic (MHz range) subwavelength pitch diffraction grating we demonstrated TOF ranging with optical mixing