APPARATUS FOR COUNTING SINGLE PHOTONS AND METHOD THEREOF

Disclosed is an apparatus for counting single photons including an edge combiner configured to detect an edge of each of applied clocks using a plurality of Phase-Locked Loops (PLL) to generate a combined signal; a sampling unit configured to sample all events occurring in each SPAD of a single phot...

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Bibliographic Details
Main Authors KIM Ki Ryong, PARK Jung Hyun, JUNG Seong-Ook
Format Patent
LanguageEnglish
Published 26.10.2017
Subjects
BASIC ELECTRIC ELEMENTS
COLORIMETRY
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
SEMICONDUCTOR DEVICES
TESTING
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Summary:Disclosed is an apparatus for counting single photons including an edge combiner configured to detect an edge of each of applied clocks using a plurality of Phase-Locked Loops (PLL) to generate a combined signal; a sampling unit configured to sample all events occurring in each SPAD of a single photon detection diode (SPAD) array using an OR tree and an XOR tree; and a calculation unit configured to count the sampled events based on the combined signal to count single photons.
Bibliography:Application Number: US201715492434