Abstract
We report a photonic scheme to generate background-free frequency-doubled binary phase-coded microwave pulses. The key component is a dual-polarization dual-parallel Mach–Zehnder modulator that is used to realize phase modulation and carrier-suppressed double second-order sideband modulation at two orthogonal polarization states, respectively. The phase jump of the frequency-doubled phase-coded microwave pulse is dependent on the polarity of the coding signal rather than its amplitude. Besides, the generated microwave pulses are free from the baseband-modulated signals, because the optical power launched to a photodetector (PD) keeps constant all the time. Since no electrical or optical filters are involved, the photonic generator can ensure a broad operation bandwidth and wide tunability. Our scheme is theoretically analyzed and experimentally verified. The 4 Gb/s at 16 GHz and 7 Gb/s at 28 GHz background-free frequency-doubled phase-coded microwave pulses have been successfully generated.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Wei Li, Li Xian Wang, Ming Li, and Ning Hua Zhu
Opt. Lett. 38(17) 3441-3444 (2013)
Wu Zhang, Qinggui Tan, Xiaojun Li, and Di Wang
Opt. Lett. 45(6) 1407-1410 (2020)
Mingzheng Lei, Zhennan Zheng, Chunqi Song, Yunping Bai, Jinwang Qian, Xinlu Gao, and Shanguo Huang
Opt. Express 27(15) 20774-20784 (2019)