Generation of squeezed TEM01modes with periodically poled KTiOPO4crystal
Rongguo Yang, Hengxin Sun, Junxiang Zhang, Jiangrui Gao · Chinese Physics B · 2011
Spatial quantum optics and quantum information based on the high order transverse mode are of importance for the super-resolution measurement beyond the quantum noise level. We demonstrated experimentally the transverse plane TEM 01 Hermite—Gauss quantum squeezing. The squeezed TEM 01 mode is generated in a degenerate optical parametric amplifier with the nonlinear crystal of periodically poled KTiOPO 4 . The level of 2.2-dB squeezing is measured using a spatial balance homodyne detection system.