RM Jenkins, ME McNie - US Patent 7,324,722, 2008 - Google Patents
A hollow core multi-mode interference (MMI) device is described that comprises a multi- mode waveguide (10, 14) optically coupled to at least two fundamental mode waveguides …
A Scofield, TP Schrans, AJ Zilkie - US Patent 12,085,831, 2024 - Google Patents
An electro-optical modulator. The electro-optical modulator comprising: an input waveguide, configured to guide light into a modulation region of the electro-optical modulator; a plurality …