Study of an Electro-Optic Leaky Waveguide Deflector for Application in All-Optical Analog-to-Digital Converters
Résumé
This paper reports design optimization of an EO deflector based on polymer materials. On the one hand, the leaky optical waveguide is optimized for achieving up to 6.3 bits of resolution, on the other hand, a transition from coplanar waveguide pads (CPW) to the CMS line is designed for RF characterization of optical deflectors by means of Ground-Signal-Ground (GSG) probes. Experimental validation of 2 cm long of via-free CPW-CMS transition built on a 40 µm thick BenzoCycloButene (BCB) polymer shows a bandwidth higher than 25 GHz. This transition is very helpful for packaging and connectorization of photonic-microwave devices.