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Improved High Speed and High Dynamic Range Photon Counting Sensors for Active…

Award Information

Department of Defense
Award ID:
Program Year/Program:
2011 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Voxtel Inc.
15985 NW Schendel Avenue Suite 200 Beaverton, OR 97006-
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2011
Title: Improved High Speed and High Dynamic Range Photon Counting Sensors for Active Imaging
Agency: DOD
Contract: HQ0147-11-C-7751
Award Amount: $999,844.00


Voxtel proposes a high speed, asynchronous, photon counting receiver for active ranging by unmanned aerial systems (UAS). Sensitivity to single photons is desirable for a low size weight and power (SWAP) UAS-borne active ranging receiver because of the limited laser pulse energy that can be transmitted, and the limited optical aperture available for signal collection. High rate operation is another requirement for a UAS-borne active ranging receiver, because accumulation of multiple pulses on target in a short span of time will be required to deal with atmospheric distortion and to improve the signal-to-noise ratio in photon-starved conditions. Since the distant target in a ranging application will subtend just a few pixels, asynchronous readout of only the pixels that fire will lower the computational burden of range processing by sparsifying the data. The proposed receiver will employ Voxtel"s innovative single carrier multiplication (SCM) avalanche photodiode (APD) technology which can sense single photons in linear mode operation, and a custom readout integrated circuit (ROIC) that will stream detection events from the 88-format detector to a 64-channel time recorder/range processor implemented in a field-programmable gate array (FPGA) board.

Principal Investigator:

Andrew Huntington
Senior Engineer
(971) 223-5646

Business Contact:

George M. Williams
(971) 223-5646
Small Business Information at Submission:

Voxtel Inc.
12725 SW Millikan Way Suite 230 Beaverton, OR -

EIN/Tax ID: 931285205
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No