title: Generation of polarization squeezing with periodically poled KTP at 1064 nm.
abstract: We report the experimental demonstration of directly produced polarization squeezing at 1064 nm from a type I optical parametric amplifier (OPA) based on a periodically poled KTP crystal (PPKTP). The orthogonal polarization modes of the polarization squeezed state are both defined by the OPA cavity mode, and the birefringence induced by the PPKTP crystal is compensated by a second, but inactive, PPKTP crystal. Stokes parameter squeezing of 3.6 dB and anti squeezing of 9.4 dB is observed.
authors.affiliation: Department of Physics, Technical University of Denmark, Building 309, 2800 Lyngby, Denmark. mlassen@fysik.dtu.dk
authors.forename: Mikael
authors.initials: M
authors.lastname: Lassen
authors.forename: Metin
authors.initials: M
authors.lastname: Sabuncu
authors.forename: Preben
authors.initials: P
authors.lastname: Buchhave
authors.forename: Ulrik L
authors.initials: UL
authors.lastname: Andersen