End-Fire Silicon Optical Phased Array with Half-Wavelength Spacing
Applied Physics
2017-06-07 v1 Optics
Abstract
We demonstrate a one-dimensional optical phased array on an integrated silicon platform for operation at 1.55 microns. Light is emitted end-fire from the chip edge where the waveguides are terminated. The innovative design and high confinement afforded by the silicon waveguides enables lambda/2 spacing (775-nm pitch) at the output. Steering is achieved by inducing a phase shift between the waveguides via integrated thermo-optic heaters. The device forms a beam with a FWHM angular width of 17 degrees, and we demonstrate beam steering over a 64 degrees range.
Cite
@article{arxiv.1706.01452,
title = {End-Fire Silicon Optical Phased Array with Half-Wavelength Spacing},
author = {Michael R. Kossey and Charbel Rizk and Amy C. Foster},
journal= {arXiv preprint arXiv:1706.01452},
year = {2017}
}