PHOTON DETECTOR

Provided is a photon detector that enables an APD response by a sinusoidal wave-shaped gate signal and is operable at an arbitrary drive frequency without requiring a special band removing filter. The photon detector of the present invention includes: a sinusoidal wave generator (3) that generates a...

Full description

Saved in:
Bibliographic Details
Main Author NISHIOKA, Tsuyoshi
Format Patent
LanguageEnglish
French
German
Published 07.12.2016
Subjects
AMPLIFIERS
BASIC ELECTRIC ELEMENTS
BASIC ELECTRONIC CIRCUITRY
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
Online AccessGet full text

Cover

More Information
Summary:Provided is a photon detector that enables an APD response by a sinusoidal wave-shaped gate signal and is operable at an arbitrary drive frequency without requiring a special band removing filter. The photon detector of the present invention includes: a sinusoidal wave generator (3) that generates a sinusoidal wave-shaped gate signal; a beam splitter (7) that splits the gate signal; a bias circuit (5) that supplies a signal resulting from superimposing the gate signal which has passed through the beam splitter (7) on a predetermined DC voltage to an avalanche photodiode; a dummy circuit (6) which inputs the gate signal which has passed through the beam splitter (7), and outputs a response signal simulating the avalanche photodiode; a differential amplifier (10) that amplifies a differential input between a response signal from the avalanche photodiode and the response signal from the dummy circuit (6) ; and a comparator (11) that outputs a photon detection signal when an output from the differential amplifier (10) is equal to or higher than a predetermined threshold voltage.
Bibliography:Application Number: EP20080810614