TY - JOUR
T1 - Hyperentangled photon sources in semiconductor waveguides
AU - Kang, Dongpeng
AU - Helt, L. G.
AU - Zhukovsky, Sergei V.
AU - Torres, Juan P.
AU - Sipe, J. E.
AU - Helmy, A. S.
PY - 2014/2/19
Y1 - 2014/2/19
N2 - We propose and analyze the performance of a technique to generate mode and polarization hyperentangled photons in monolithic semiconductor waveguides using two concurrent type-II spontaneous parametric down-conversion (SPDC) processes. These two SPDC processes are achieved by waveguide engineering which allows for simultaneous modal phase matching with the pump beam in a higher-order mode. Paired photons generated in each process are cross polarized and guided by different guiding mechanisms, which produces entanglement in both polarization and spatial mode. Theoretical analysis shows that the output quantum state has a high quality of hyperentanglement by spectral filtering with a bandwidth of a few nanometers, while off-chip compensation is not needed. This technique offers a path to realize an electrically pumped hyperentangled photon source.
AB - We propose and analyze the performance of a technique to generate mode and polarization hyperentangled photons in monolithic semiconductor waveguides using two concurrent type-II spontaneous parametric down-conversion (SPDC) processes. These two SPDC processes are achieved by waveguide engineering which allows for simultaneous modal phase matching with the pump beam in a higher-order mode. Paired photons generated in each process are cross polarized and guided by different guiding mechanisms, which produces entanglement in both polarization and spatial mode. Theoretical analysis shows that the output quantum state has a high quality of hyperentanglement by spectral filtering with a bandwidth of a few nanometers, while off-chip compensation is not needed. This technique offers a path to realize an electrically pumped hyperentangled photon source.
UR - http://www.scopus.com/inward/record.url?scp=84894529859&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.89.023833
DO - 10.1103/PhysRevA.89.023833
M3 - Article
AN - SCOPUS:84894529859
VL - 89
SP - 1
EP - 8
JO - Physical Review A: covering atomic, molecular, and optical physics and quantum information
JF - Physical Review A: covering atomic, molecular, and optical physics and quantum information
SN - 2469-9926
IS - 2
M1 - 023833
ER -