SBIR/STTR Research Award

Low Noise, High Efficiency InGaAs/InAIAs Avalanche Photodiodes for Photon Counting at 1.55 Micrometer Wavelength

Award identifier 71767cee5788ffda78a48f8e72f05fa955f238276528386dcc5b0628867f7ac5Awarding agency Department of Commerce

Award amount

$74,952

Program and phase

SBIR · Phase I

Award year

2005

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Award details

Awarding agency
Department of Commerce
Branch
Not reported
Recipient company
COVEGA, INC.
Proposal award date
Not reported
Contract end date
Not reported
UEI
Not reported
Solicitation number
NOAA-2005-1
Topic code
8.3.12

Research abstract

A large area (diameter > 200 micrometer) mesa type InGaAs/InAlAs avalanche photodiode with a novel surface passivation technique is proposed for photon counting at eye-safe wavelength of > 1.4 micrometer. The device is expected to exhibit high detection efficiency, low dark count rate with minimal afterpusling, due to the small k factor of InAlAs gain material and the unique mesa sidewall treatment. It should also have the improved reliability, suitable for a broad range of commercial applications. A fully packaged APD chip will be fabricated and tested in Geiger mode to demonstrate proof-of-concept.

Technology keywords

Not reported

Agency intelligence

Department of Commerce

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