Broadband source of polarization entangled photons.
A broadband source of polarization entangled photons based on type-II spontaneous parametric down conversion from a chirped PPKTP crystal is presented. With numerical simulation and experimental evaluation, we report a source of broadband polarization entangled states with a bandwidth of approximately 125 nm for use in quantum interferometry. The technique has the potential to become a basis for the development of flexible broadband sources with designed spectral properties.
Department of Electrical and Computer Engineering, Boston University, 8 Saint Mary’s St., Boston, Massachusetts 02215, USA. afraine@bu.edu
A
A
Fraine
O
O
Minaeva
D S
DS
Simon
R
R
Egorov
A V
AV
Sergienko
D007368:Interferometry; D008027:Light; D055620:Optical Phenomena; D017785:Photons