DYNAMIC SINGLE PHOTON GENERATOR BASED ON NON-DEMOLITION PHOTON COUNTER

A dynamic single photon generator based on a non-demolition photon counter according to an embodiment of the present invention comprises: a photon source for performing the function of a light source; a non-demolition photon counter for detecting the number of photons included in a photon pulse outp...

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Bibliographische Detailangaben
Hauptverfasser:	JEONG, YONG JUN, HWANG, IL PYEONG, MOON, SANG ROK, SON, DONG HYEOP, LEE, CHANG HEE, YOO, SANG HWA, KYE, MYEONG GYUN, AHN, SEUNG HYEON
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	A dynamic single photon generator based on a non-demolition photon counter according to an embodiment of the present invention comprises: a photon source for performing the function of a light source; a non-demolition photon counter for detecting the number of photons included in a photon pulse output from the photon source; a voltage-controlled optical attenuator for attenuating the photon pulse output from the photon source to enable the output photon pulse to include a single photon; and a processing unit for calculating an attenuation value of the voltage controlled optical attenuator based on the number of the photons detected by the non-demolition photon counter and controlling the voltage-controlled optical attenuator based on the calculated attenuation value. The dynamic single photon generator of the present invention can increase the single photon generation probability of the photon source. 본 발명의 일 실시 예에 따른 상태 비파괴형 광자개수검출기에 기반한 동적 단일광자발생기는 광원의 기능을 수행하는 광원소스, 상기 광원소스로부터 출력되는 광자 펄스에 포함된 광자의 개수를 검출하는 상태 비파괴형 광자개수검출기, 상기 광원소스로부터 출력되는 광자 펄스를 감쇠하여 출력되는 광자 펄스가 단일광자를 포함하도록 하는 전압 제어형 광감쇠기, 및 상기 상태 비파괴형 광자개수검출기에서 검출된 광자의 개수에 기반하여, 상기 전압 제어형 광감쇠기의 감쇠값을 산출하고, 산출된 감쇠값을 바탕으로 전압 제어형 광감쇠를 제어하는 처리부를 포함할 수 있다.