Efficient Low-Dark-Count Detector for Photon Counting

Award Information
Agency:
Department of Commerce
Branch
National Institute of Standards and Technology
Amount:
$299,998.00
Award Year:
2009
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
84383
Agency Tracking Number:
409-08
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
12725 SW Millikan Way, Suite 230, Beaverton, OR, 97005
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
Voxtel has demonstrated efficient high-speed photon counting with thresholded linear-mode avalanche photodiode (APD) receivers using multi-gain-stage InGaAs/InAIAs APDs. In contrast to Geiger APDs, thresholded photon-counting linear APD receivers are thought not to suffer afterpulsing, and can support maximum count rates (MCR) up to 2 or 3 orders of magnitude faster than Geiger APDs. However, the early embodiments of this new photon-counting receiver have a much higher dark count rate (DCR) than InGaAs Geiger-mode APDs. In the Phase II project, Voxtel proposes to reduce the dark count contributions from both the APD and the transimpedance amplifier by developing a new embodiment of the multi-stage APD in the Phase II program that substitutes InP for InAIAs in the multiplier, and simultaneously by fundamentally improving the amplification using a new, ultra-low-noise capacitive-feedback transimpedance amplifier (CTIA).

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government