Open AccessControlled generation of single photons in a coupled atom-cavity system at a fast repetition-rate
Author(s) -
Sungsam Kang,
Sooin Lim,
Mun Kyung Hwang,
Wookrae Kim,
Jung-Ryul Kim,
Kyungwon An
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.002440
Subject(s) - photon , physics , optics , atomic physics , quantum optics , pulse (music) , single photon source , laser , atom (system on chip) , detector , computer science , embedded system
We have demonstrated high-speed controlled generation of single photons in a coupled atom-cavity system. A single 85Rb atom, pumped with a nanosecond-pulse laser, generates a single photon into the cavity mode, and the photon is then emitted out the cavity rapidly. By employing cavity parameters for a moderate coupling regime, the single-photon emission process was optimized for both high efficiency and fast bit rates up to 10 MHz. The temporal single-photon wave packet was studied by means of the photon-arrival-time distribution relative to the pump pulse and the efficiency of the single-photon generation was investigated as the pump power. The single-photon nature of the emission was confirmed by the second-order correlation of emitted photons.