Open AccessSiN integrated optical phased arrays for two-dimensional beam steering at a single near-infrared wavelength
Author(s) -
Nicola A. Tyler,
Daivid Fowler,
Stéphane Malhouitre,
Stéphanie Garcia,
Philippe Grosse,
W. Rabaud,
Bertrand Szelag
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.005851
Subject(s) - phased array optics , beam steering , optics , phased array , materials science , wafer , wavelength , beam (structure) , optoelectronics , optical switch , physics , telecommunications , computer science , antenna (radio)
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° × 3°, 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.