Asymmetric dual-SSB modulation for photonic co-frequency mm-wave signals generation and DSP-free receiver

• DOI: 10.1364/ol.437746
• Publication Date: 2021-08-13T12:00:22Z
• Authors: Haiping Song; Chuanming Huang; Hongyu Li; Longquan Dai; Ziqi Liu; Yu Yang; Mengfan Cheng; Qi Yang; Ming Tang; Deming Liu; Lei Deng
• Keywords: Modulation (music); Compatible sideband transmission

An asymmetric dual-single-sideband (SSB) modulation scheme for photonic co-frequency millimeter (mm)-wave signals generation and digital signal processing (DSP)-free receiver is experimentally demonstrated the first time, to best of our knowledge. To effectively avoid sideband crosstalk in traditional symmetric dual-SSB scheme, not only two vector-modulated but also unmodulated sidebands are modulated on sides an optical carrier this scheme. delay line interferometer could easily separate these simultaneously receiver, thus frequency up-conversion realized. Besides, free dispersion-induced RF power fading thanks SSB modulation. By means, no compensation algorithms such as phase recovery, fiber dispersion compensation, channel equalization required, contributing DSP-free receiver. In experiment, 32 GHz 3.2 Gb/s 16-ary quadrature amplitude mm-wave produced using with frequencies 12 20 GHz. The error vector magnitude (EVM) performances after 25.5 km standard single-mode transmission better than 3rd Generation Partnership Project requirements without any algorithms.