Record High Squeezing using χ(2) in AlGaAs Chips
Zhizhong Yan, Haoyu He, Han Liu, Meng Lon Iu, O. Ahmed, Eric Chen, Youichi Akasaka, Ikeuchi, Amr S. Helmy · Conference on Lasers and Electro-Optics · 2019
Record squeezing, with squeezing parameter r ≈ 2.5 is measured in AlGaAs optical parametric amplifiers using an ultrafast pump centered at 775 nm. Polarization dependent squeezing and parametric gain were obtained with sub-photon per pulse amplifier sensitivity at 1550 nm regime.