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Environmentally Adaptive Free-Space Optical Communication

Award Information
Agency: Department of Defense
Branch: Army
Contract: W91151-21-C-0036
Agency Tracking Number: A202-109-0169
Amount: $111,496.15
Phase: Phase I
Program: SBIR
Solicitation Topic Code: A20-109
Solicitation Number: 20.2
Solicitation Year: 2020
Award Year: 2021
Award Start Date (Proposal Award Date): 2020-10-30
Award End Date (Contract End Date): 2022-02-10
Small Business Information
20 New England Business Center
Andover, MA 01810-1111
United States
DUNS: 073800062
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Joseph Goodwin
 (978) 738-8169
Business Contact
 B. David Green
Phone: (978) 689-0003
Research Institution

Physical Sciences Inc. will develop an adaptive free-space optical communication system, capable of maintaining low bit error rate (~ 10-9) over long ranges (> 20 km) by correcting for atmospheric and other environmental factors while operating at eye-safe power levels.  The proposed concept uses three adaptive systems to optimize performance in the presence of platform motion, varying optical scattering/absorption, and atmospheric turbulence. In Phase I, PSI will combine atmospheric and adaptive optics modeling with basic lasercom link analysis to form a comprehensive system model, outputting predictions of BER under various atmospheric conditions.  A commercial atmospheric modeling code will be used to simulate background radiance and optical extinction from scattering/absorption losses in the optical channel.  Outputs will generate a library of values for different geographic locations, times of day, and atmospheric conditions.  Optical turbulence will be modeled by combining Fresnel diffraction with a highly accurate method for developing phase screens.  Adaptive hardware models will be integrated to assess performance improvements.  Our common-axis optical transceiver provides high optical throughput while minimizing size and weight.  Using PSI’s advanced adaptive optics model, combined with design and hardware experience, will result in a high-performance free-space optical system that is readily adaptable for real-world conditions.

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

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