The Lockheed Martin Advanced Technology Center and the University of California at Davis (UC Davis) has developed an interferometric imaging system based on photonic integrated circuits (PICs). This approach could enable a new hardware architecture with a 10x to 100x reduction in size and weight compared to traditional imaging systems, particularly targeted for space applications. The current PIC design consists of a three- layer system of waveguides, arrayed waveguide gratings (AWGs) and multi-mode interferometers (MMIs) that link 12 interferometric baselines to measure the phase and amplitude of the mutual intensity of an extended object. A series of lenslets couple light into 24 input waveguides on one edge of the PIC. On the opposite side there are 206 interferometer output ports that provide the fringe data for creating images. In this paper we will describe the photonic integrated circuit design and the testbed used to create the first images of extended scenes. We will also summarize the image reconstruction steps and present the final images.

© 2017 Optical Society of America

PDF Article
More Like This
System Design for a SPIDER Imager

Samuel T. Thurman, Richard L. Kendrick, Alan Duncan, Danielle Wuchenich, and Chad Ogden
FM3E.3 Frontiers in Optics (FiO) 2015

An Interferometric Fiber-Optic Gyroscope System Based on an Application Specific Photonic Integrated Circuit

Stanisław Stopiński, Anna Jusza, and Ryszard Piramidowicz
CH_7_1 The European Conference on Lasers and Electro-Optics (CLEO_Europe) 2017

Hybrid imaging-based beam steering system using a sparse photonic integrated circuit outcoupling array

Sajad Saghaye Polkoo and Christopher Kyle Renshaw
JTh2B.25 CLEO: Applications and Technology (CLEO_AT) 2020


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription