Serpentine Optical Phased Array Silicon Photonic Aperture Tile with Two-Dimensional Wavelength Beam Steering. - Bohan Zhang; Nathan Dostart; Anatol Khilo; Michael Brand; Kenaish Al Qubaisi; Deniz Onural; Daniel Feldkhun; Milos A. Popovic; Kelvin H. Wagner (OFC, 2019)