SIN integrated optical phased arrays for two-dimensional beam steering at a single near-infrared wavelength

Nicola A. Tyler (1) , Daivid Fowler (1) , Stephane Malhouitre (1) , Stephanie Garcia (1) , Philippe Grosse (1) , Wilfried Rabaud (1) , Bertrand Szelag (1)

1 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information

In this work, we present two-dimensional beam steering in the near-infrared using a SiN integrated circuit, containing optical phased arrays. Beam steering was achieved over a range of 17.6 degrees x 3 degrees, at a fixed wavelength of 905 nm. The first dimension was steered via phase differences between the optical phased array channels. The second dimension was accessed by actively switching between various optical phased array sub-devices containing output diffraction gratings with different periods. The characterisation was performed on a wafer-level test station.

Domains: Engineering Sciences [physics]

Nicola A. Tyler, Daivid Fowler, Stephane Malhouitre, Stephanie Garcia, Philippe Grosse, et al.. SIN integrated optical phased arrays for two-dimensional beam steering at a single near-infrared wavelength. Optics Express, 2019, 27 (4), pp.5851-5858. ⟨10.1364/OE.27.005851⟩. ⟨cea-02186479⟩