Generation of entangled TEM<sub>01</sub> modes with periodically poled KTiOPO<sub>4</sub> crystal

Generation of entangled TEM₀₁ modes with periodically poled KTiOPO₄ crystal

Yang Rong-Guo^{1, 2, †,}, Wang Jing-jing², Zhang Jing^{1, 2}, Sun Heng-Xin^{1, 3}

Experimentally measured correlation noise power spectra for the TEM₀₁ entanglement. Panels (a) and (b) correspond to the sum of quadrature amplitude and the difference of quadrature phase. The red, black, and blue curves are corresponding to the shot noise level, the sum of quadrature amplitude/the difference of quadrature phase noise, and the electronics noise, respectively. All traces are obtained under the conditions of the resolution bandwidth of 300 kHz and the video bandwidth of 300 Hz.