Low Noise Single Photon Detection System with InGaAs/InP APD Integrated TEC Device and Analog Integrator Readout Scheme

Title
Low Noise Single Photon Detection System with InGaAs/InP APD Integrated TEC Device and Analog Integrator Readout Scheme
Authors
이민수한상욱문성욱
Keywords
APD; 단일광자; 검출기; QKD 시스템
Issue Date
2013-02
Publisher
한국반도체학술대회
Abstract
InGaAs/InP avalanche photodiode(APD) is widely used in quantum key distribution(QKD) for single photon detection. The APD mainly suffers from After-pulse and dark current noise. We have implemented a compact APD module that thermoelectric control device is integrated for lower dark current noise. In addition, a new readout scheme using analog integrator circuit developed for reducing After-pulse noise. Measurement result shows 1.48 % After pulse noise compared to conventional scheme of 11 % at 15.64 % quantum efficiency.
URI
http://pubs.kist.re.kr/handle/201004/46464
Appears in Collections:
KIST Publication > Conference Paper
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