TY - CONF AB - A source of single photons allows secure quantum key distribution, in addition, to being a critical resource for linear optics quantum computing. We describe our progress on deterministically creating single photons from spontaneous parametric downconversion, an extension of the Pittman, Jacobs and Franson scheme [Phys. Rev A, v66, 042303 (2002)]. Their idea was to conditionally prepare single photons by measuring one member of a spontaneously emitted photon pair and storing the remaining conditionally prepared photon until a predetermined time, when it would be "deterministically" released from storage. Our approach attempts to improve upon this by recycling the pump pulse in order to decrease the possibility of multiple-pair generation, while maintaining a high probability of producing a single pair. Many of the challenges we discuss are central to other quantum information technologies, including the need for low-loss optical storage, switching and detection, and fast feed-forward control. AU - Peters, Nicholas A AU - Arnold, Keith J AU - VanDevender, Aaron P AU - Jeffrey, Evan R AU - Rangarajan, Radhika AU - Onur Hosten AU - Barreiro, Julio T AU - Altepeter, Joseph B AU - Kwiat, Paul G ID - 578 TI - Towards a quasi-deterministic single-photon source VL - 6305 ER -