Nanophotonic projection system
Low-power integrated projection technology can play a key role in development of low-cost mobile devices with built-in high-resolution projectors. Low-cost 3D imaging and holography systems are also among applications of such a technology. In this paper, an integrated projection system based on a two-dimensional optical phased array with fast beam steering capability is reported. Forward biased p-i-n phase modulators with 200MHz bandwidth are used per each array element for rapid phase control. An optimization algorithm is implemented to compensate for the phase dependent attenuation of the p-i-n modulators. Using rapid vector scanning technique, images were formed and recorded within a single snapshot of the IR camera.
© 2015 OSA. Received 13 Apr 2015; revised 23 Jun 2015; accepted 10 Jul 2015; published 4 Aug 2015. We thank OpSIS foundry for the fabrication of the chips and Profs. Micheal Hochberg and Tom Baehr-Jones from University of Delaware for valuable discussions on fabrication process.
Published - oe-23-16-21012.pdf