Integrated Optical Phased Array Based on a Binary Splitter Tree With Reduced Number of Control Voltages

• DOI: 10.1109/jlt.2022.3154971
• Publication Date: 2022-02-28T21:42:54Z
• Authors: Daivid Fowler; Sylvain Guerber; Jonathan Faugier-...; Nicola A. Tyler; Bertrand Szelag
• Keywords: Splitter; Phased-array optics; Beam splitter; Beam steering; Waveguide

We experimentally demonstrate beam steering in an optical phased array (OPA) featuring a mixture of individual and cascaded phase modulator architecture embedded the binary splitter tree. show equivalent forming 16 channel OPA with separate applied voltages 16ch 6 control voltages. A 32ch 10 is also demonstrated. These results illustrate flexible means designing significantly fewer electrical connections than count, while minimizing impact waveguide errors on output quality.