Abstract In this paper, a filterless reconfigurable frequency mixer based on a wideband photonic microwave phase shifter is proposed. The main device is a single PDM-DPMZM which is applied to generate a pair of orthogonally polarized CS-SSB signals. A pair of PCs are followed to introduce a tunable phase to the CS-SSB signals. By changing the detection scheme of the output optical signals and tuning the PCs, single-ended, double-balanced, I/Q, and image-reject mixer can all be achieved with the capability of full range phase shifting. And it can also perform frequency up- and down-conversion switching by adjusting the DC biases of the modulator. A simulation is carried out to demonstrate its versatility, flexibility and reconfigurability. The measured image-rejection ratio of the image rejection mixer is about 65 dB. In addition, the frequency operation range, practical applicability and feasibility are discussed. The effect of non-ideal factors or adjustable parameters, i.e., extinction ratio deterioration, DC biases drift, phase inaccuracy between I/Q path, instability or inaccuracy of the PC and LO signal power variation on system performance are also analyzed.

中文翻译：

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基于宽带光子微波移相器的无滤波器可重构混频器

摘要 本文提出了一种基于宽带光子微波移相器的无滤波器可重构混频器。主要设备是单个 PDM-DPMZM，用于生成一对正交极化的 CS-SSB 信号。跟随一对 PC 将可调相位引入 CS-SSB 信号。通过改变输出光信号的检测方案和调谐PC，可以实现单端、双平衡、I/Q和镜像抑制混频器，并具有全范围相移的能力。并且还可以通过调节调制器的直流偏置来进行上、下变频切换。进行仿真以证明其多功能性、灵活性和可重构性。镜像抑制混频器的测量镜像抑制比约为 65 dB。此外，讨论了频率操作范围、实际适用性和可行性。还分析了非理想因素或可调参数，即消光比恶化、直流偏置漂移、I/Q 路径之间的相位不准确、PC 和 LO 信号功率变化的不稳定性或不准确度对系统性能的影响。