5:30 PM - 5:45 PM
△ [15p-B401-17] Structural Investigation and Fabrication of GaN Optical Waveguide Electric-Field Driven Mach-Zehnder Interferometer
Keywords:Mach-Zehnder interferometer, Gallium Nitride, Optical waveguide
An optical AI accelerator consisting of a multistage Mach-Zehnder interferometer (MZI) with two directional couplers and a phase shifter is expected to enable faster computation and lower power consumption than electronic circuits.
GaN has an electro-optic effect, which enables modulation at GHz-order, which is faster than silicon MZI.
The device using a channel waveguide with stronger confinement than that of ferroelectrics is expected to be miniaturized.
In this study, we investigate the structure of electric-field-applied phase shifter and fabricate and evaluate MZI.
GaN has an electro-optic effect, which enables modulation at GHz-order, which is faster than silicon MZI.
The device using a channel waveguide with stronger confinement than that of ferroelectrics is expected to be miniaturized.
In this study, we investigate the structure of electric-field-applied phase shifter and fabricate and evaluate MZI.