Opt Lett. 2013 Dec 15;38(24):5292-5. doi: 10.1364/OL.38.005292.
A new microwave photonic mixer that can achieve a high conversion efficiency is presented. It is based on using the stimulated Brillouin scattering loss spectrum to suppress the optical carrier at the output of two optical phase modulators driven by the RF signal and the LO, respectively. Experimental results are presented, which demonstrate a high conversion efficiency of 11.3 dB corresponding to over 26 dB improvement compared to the conventional dual-series Mach-Zehnder modulator based microwave photonic mixer, and wide bandwidth of 0.2 to 20 GHz mixing operation.
提出了一种新的微波光子混频器，该混频器可以实现高效率的转换。它基于利用受激布里渊散射损耗谱来抑制由 RF 信号和 LO 分别驱动的两个光相位调制器在输出处的光载波。实验结果表明，与传统的基于双级联马赫-曾德尔调制器的微波光子混频器相比，转换效率提高了 11.3dB，超过 26dB，并且具有 0.2 至 20GHz 的宽带宽混合工作。
