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Updated: Jul 4, 2026

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
Published on: February 4, 2018
Compact and highly-efficient polarization independent vertical resonant couplers for active-passive monolithic
Marko Galarza1, Dries Van Thourhout, Roel Baets
1Department of Electrical an Electronic Engineering, Public University of Navarre, Campus Arrosadía, 31006 Pamplone, Spain
Abstract:
Compact low-loss polarization independent vertical coupling between a 1.55 microm InGaAsP bulk active waveguide and a passive waveguide based on bimodal interference is presented. Simulation results show low coupling loss (<0.1 dB) over coupler lengths more than 5 times shorter than using the adiabatic design. The concept avoids submicron photolithographic features and shows acceptable fabrication tolerances.
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