High Sensitivity Indium Phosphide Based Avalanche Photodiode Focal Plane Arrays

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX08CC27P
Agency Tracking Number: 075074
Amount: $99,887.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: X2.02
Solicitation Number: N/A
Small Business Information
nLight Photonics
5408 NE 88th Street, Building E, Vancouver, WA, 98665-0990
DUNS: 799811646
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Shabbir Bashar
 Principal Investigator
 (360) 713-5145
 shabbir.bashar@nlight.net
Business Contact
 Dan Milewski
Title: Business Official
Phone: (360) 566-4479
Email: dan.milewski@nlight.net
Research Institution
N/A
Abstract
We propose to build a monolithically integrated FPA of densely packed APDs (70-um pitch) operating at or around 1500 nm wavelength that is suitable for the solicited autonomous precision landing and hazard detection and avoidance system. These would be capable of 3D imaging an area of 150m x 150m from a distance of 1 – 2km. By using highly efficient detector material (InGaAs/InP) a number of significant advantages can be leveraged. These include compactness, low mass, low cost and most importantly low power consumption and low thermal dissipation which are of primary concern in a remote environment such as the un-manned Lunar or Mars landing vehicles. It is expected that each pixel will have modest speeds (1 nano-second response time), high gain (>30) and ultra low-noise (k < 0.2) and that the FPA is easily manufactured using established growth, fabrication and packaging technologies. These FPAs would be bump-bondable to an appropriate Read Out Integrated Circuit (ROIC) that can reliably sustain a frame fresh rate of at least 20Hz and be capable of resolving depths of a few centimeters.

* information listed above is at the time of submission.

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