In this paper, we present a laser scheme without cavity in a 10 cm cesium cell as a potential active optical frequency standard. Since no cavity is applied, the stimulated light is emitted from the atoms directly and the center frequency of output laser light is solely determined by atoms without cavity pulling. The threshold […]

We propose a statistical information based approach to enhance the performance of the non-iterative quasi-maximumlikelihood (QML) receiver (detector plus decoder) recorded at the output of the channel decoder for coded multiple-input multiple-output (MIMO) systems. As an illustrative example, the QR decomposition with an M-algorithm (QRD-M) based non-iterative QML receiver is employed in this correspondence. We […]