High Sensitivity Indium Phosphide Based Avalanche Photodiode Focal Plane Arrays

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,887.00
Award Year:
2008
Program:
SBIR
Phase:
Phase I
Contract:
NNX08CC27P
Agency Tracking Number:
075074
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
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
799811646
Principal Investigator:
Shabbir Bashar
Principal Investigator
(360) 713-5145
shabbir.bashar@nlight.net
Business Contact:
Dan Milewski
Business Official
(360) 566-4479
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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