%A Rong-Guo Yang(杨荣国), Jing-jing Wang(王晶静), Jing Zhang(张静), Heng-Xin Sun(孙恒信) %T Generation of entangled TEM01 modes withperiodically poled KTiOPO4 crystal %0 Journal Article %D 2016 %J Chin. Phys. B %R 10.1088/1674-1056/25/7/074208 %P 74208-074208 %V 25 %N 7 %U {https://cpb.iphy.ac.cn/CN/abstract/article_118744.shtml} %8 2016-07-05 %X Spatial quantum optics based on the high-order transverse mode is important for the super-resolution measurement and quantum image beyond the shot noise level. Quantum entanglement of the transverse plane Hermite-Gauss TEM01 mode has been demonstrated experimentally in this paper. Two squeezed TEM01 modes, which are generated by a pair of degenerate optical parametric amplifiers (DOPA) with the nonlinear crystals of periodically poled KTiOPO4, have been combined to produce TEM01 mode entanglement using a beam splitter. The 1.5 dB for the sum of amplitude and 1.2 dB for the difference of phase below shot-noise level is achieved with the measurement system of a Bell state detection.