TY  - JOUR
AU  - Castelletto, S
AU  - Degiovanni, IP
AU  - Schettini, V
Y2  - 2014/05/21
Y1  - 2005/09/05
SN  - 1094-4087
UR  - http://hdl.handle.net/11343/26113
AB  - We describe an experiment in which photon pairs from a pulsed parametric down-conversion (PDC) source were coupled into single-mode fibers with heralding efficiencies as high as 70%. Heralding efficiency or mode preparation efficiency is defined as the probability of finding a photon in a fiber in a definite state, given the detection of its twin. Heralding efficiencies were obtained for a range of down-conversion beam-size configurations. Analysis of spatial and spectral mode selection, and their mutual correlation, provides a practical guide for engineering PDC-produced single photons in a definite mode and spectral emission band. The spectrum of the heralded photons were measured for each beam configuration, to determine the interplay between transverse momentum and spectral entanglement on the preparation efficiency.
LA  - English
PB  - OPTICAL SOC AMER
KW  - Optics and Opto-electronic Physics ; Physical Sciences
T1  - Spatial and spectral mode selection of heralded single photons from pulsed parametric down-donversion
DO  - 10.1364/OPEX.13.006709
IS  - OPTICS EXPRESS
VL  - 13
IS  - 18
SP  - 6709-6722
L1  - /bitstream/handle/11343/26113/115872_4907.pdf?sequence=1&isAllowed=n
ER  -