title: Bright squeezed-vacuum source with 1.1 spatial mode.
abstract: Bright squeezed vacuum, a macroscopic nonclassical state of light, can be obtained at the output of a strongly pumped nonseeded traveling-wave optical parametric amplifier (OPA). By constructing the OPA of two consecutive crystals separated by a large distance, we make the squeezed vacuum spatially single-mode without a significant decrease in the brightness or squeezing.
authors: A M
authors: AM
authors: Pérez
authors: T Sh
authors: TSh
authors: Iskhakov
authors: P
authors: P
authors: Sharapova
authors: S
authors: S
authors: Lemieux
authors: O V
authors: OV
authors: Tikhonova
authors: M V
authors: MV
authors: Chekhova
authors: G
authors: G
authors: Leuchs