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A Wavelength-scalable Dual-stage Photonic Integrated Circuit Spectrometer

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-19-C-0320
Agency Tracking Number: N19A-023-0107
Amount: $139,976.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: N19A-T023
Solicitation Number: 19.A
Solicitation Year: 2019
Award Year: 2019
Award Start Date (Proposal Award Date): 2019-06-03
Award End Date (Contract End Date): 2019-12-09
Small Business Information
20 New England Business Center
Andover, MA 01810
United States
DUNS: 073800062
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Christopher C. Evans Christopher C. Evans
 Principal Scientist
 (978) 738-8159
Business Contact
 David Weatherby
Phone: (978) 738-8107
Research Institution
 Georgia Institute of Technology
 Leland Butisbauch Leland Butisbauch
North Avenue
Atlanta, GA 30332
United States

 (404) 385-5448
 Nonprofit College or University

In this program, Physical Sciences Inc. (PSI) will team with Professor Ali Adibi’s group at the Georgia Institute of Technology to develop a photonic integrated circuit (PIC) spectrometer that can simultaneously achieve high-resolution over wide-bandwidths using a scalable and foundry-ready approach. While a PIC-based spectrometer is a key component for on-chip Raman, fluorescence, and absorption spectroscopy, it is also a general purpose tool for PIC designers when available within a foundry’s process-design kit (PDK). Our approach cascades two complimentary devices: a first-stage wide-bandwidth (>200 nm) coarse spectrometer formed using an echelle or arrayed-waveguide grating feeding a series of second-stage high-resolution (<1 nm) spectrometers consisting of arrays of high-quality-factor micro-resonators. Using a passive photonics platform with low-loss SiN waveguides and high-performance off-chip detectors enables high quantum efficiencies (>10%) that are fully compatible with low temperature operation (–40°C). Our approach is also highly adaptable and scalable in terms of center wavelength; it can be designed to operate over >200-nm bands throughout the visible and near-infrared wavelength regimes. Within the first phase of this program we will demonstrate an on-chip spectrometer that achieves the requirements of wide-bandwidth and high-resolution, and in Phase II, mature this technology for incorporation into standard PDK libraries.

* Information listed above is at the time of submission. *

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