Title: SLI-T Integrated Spectrometer
Presenting Author: Stephanie Sandor-Leahy
Organization: Northrop Grumman Aerospace Systems
Co-Author(s): Richard Davis, Augusto Gutierrez-Aitken, KK Loi, Dennis Scott, Wayne Yoshida

Abstract:
Under the ESTO Sustainable Land Imaging - Technology (SLI-T) program Northrop Grumman Aerospace Systems (NGAS) is building and demonstrating a next-generation photonic imaging instrument. Hyperspectral imaging (HSI) promises access to new land analysis techniques and data products through the measurement of image scenes at high spectral resolution, while maintaining critical continuity with traditional Landsat data products. Our objectives for the SLI-T program are to build and test an integrated hyperspectral photonic instrument covering two SLI bands Cirrus (1.36 - 1.39 µm, 3nm resolution) and SWIR 1 (1.56 - 1.66 µm, 6nm resolution). For the first program year we have focused our effort on the Cirrus band and developed a photonic design that demonstrates high waveguide packing densities. This design exhibits more compact geometries overall and tighter waveguide-to-waveguide packing densities than have been previously demonstrated. Based on our microelectronics foundry capabilities, we have developed a waveguide/detector fabrication and integration approach that makes optimal use of the area available on the waveguide layer. This talk will present status for first program year and progress towards an integrated photonic brassboard instrument.