Apple inc. (20250110273). BROADBAND MULTIMODE WAVEGUIDE INTERFACES
BROADBAND MULTIMODE WAVEGUIDE INTERFACES
Organization Name
Inventor(s)
Mark A. Arbore of Los Altos CA US
BROADBAND MULTIMODE WAVEGUIDE INTERFACES
This abstract first appeared for US patent application 20250110273 titled 'BROADBAND MULTIMODE WAVEGUIDE INTERFACES
Original Abstract Submitted
a photonic integrated circuit as discussed herein may include one or more multimode waveguide interfaces that define a corresponding transition between a waveguide and a free propagation region of a photonic integrated circuit. specifically, a multimode waveguide interface may include an input waveguide that is connected to an interferometric waveguide, and a slab waveguide connected to the interferometric waveguide. the input waveguide and interferometric waveguide are positioned and configured to convert a portion of a first mode of light into a second mode of light, such that the first and second modes interfere within the interferometric waveguide. the interferometric waveguide is configured such that these modes are in phase for a first target wavelength and out of phase for a second target wavelength at an interface between the interferometric waveguide and the slab waveguide.