Long Yun, Zhou Linjie, Wang Jian
Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China.
State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
Sci Rep. 2016 Feb 2;6:20215. doi: 10.1038/srep20215.
Photonic generation of microwave signal is obviously attractive for many prominent advantages, such as large bandwidth, low loss, and immunity to electromagnetic interference. Based on a single integrated silicon Mach-Zehnder modulator (MZM), we propose and experimentally demonstrate a simple and compact photonic scheme to enable frequency-multiplicated microwave signal. Using the fabricated integrated MZM, we also demonstrate the feasibility of microwave amplitude-shift keying (ASK) modulation based on integrated photonic approach. In proof-of-concept experiments, 2-GHz frequency-doubled microwave signal is generated using a 1-GHz driving signal. 750-MHz/1-GHz frequency-tripled/quadrupled microwave signals are obtained with a driving signal of 250 MHz. In addition, a 50-Mb/s binary amplitude coded 1-GHz microwave signal is also successfully generated.
微波信号的光子产生因其诸多突出优点而具有明显的吸引力，如带宽大、损耗低以及抗电磁干扰等。基于单个集成硅马赫曾德尔调制器（MZM），我们提出并通过实验证明了一种简单紧凑的光子方案，以实现倍频微波信号。利用所制造的集成MZM，我们还证明了基于集成光子方法的微波幅移键控（ASK）调制的可行性。在概念验证实验中，使用1-GHz驱动信号产生了2-GHz倍频微波信号。通过250-MHz的驱动信号获得了750-MHz/1-GHz的三倍频/四倍频微波信号。此外，还成功产生了一个50-Mb/s二进制幅度编码的1-GHz微波信号。
