[21a-E214-1~9] 4.6 Quantum Optics and Nonlinear Optics

▲ [21a-E214-3] Spatial mode detection by means of a nonlinear parametric upconversion process

〇(P)Adam Valles¹, Bereneice Sephton², Andrew Forbes² (1.Chiba Univ., Japan, 2.Wits Univ., South Africa)

Keywords:Nonlinear optics, Quantum state tomography, Mode detection

The efficient creation and detection of spatial modes of light has become topical of late, driven by the need to increase photon bit-rates in classical and quantum communications. Here we put forward a new spatial mode detection technique based on the nonlinear optical process of sum-frequency generation, also showing that the method can be used to transfer an image from the infrared band to the visible, which implies the efficient conversion of many spatial modes.