Abstract
A novel microwave shaper is proposed and demonstrated, of which the microwave spectral transfer function could be fully programmable with high resolution. We achieve this by bandwidth-compressed mapping a programmable optical wave-shaper, which has a lower frequency resolution of tens of gigahertz, to a microwave one with resolution of tens of megahertz. This is based on a novel technology of “bandwidth scaling,” which employs bandwidth-stretched electronic-to-optical conversion and bandwidth-compressed optical-to-electronic conversion. We demonstrate the high resolution and full reconfigurability experimentally. Furthermore, we show the group delay variation could be greatly enlarged after mapping; this is then verified by the experiment with an enlargement of 194 times. The resolution improvement and group delay magnification significantly distinguish our proposal from previous optics-to-microwave spectrum mapping.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
D. E. Mittelberger, R. Muir, D. Perlmutter, and J. Heebner
Opt. Lett. 46(8) 1832-1835 (2021)
Yan Zheng, Jilong Li, Yitang Dai, Feifei Yin, and Kun Xu
Opt. Lett. 43(2) 194-197 (2018)
Yang Liu, Yuan Yu, Shixing Yuan, Xinbiao Xu, and Xinliang Zhang
Opt. Lett. 41(21) 5078-5081 (2016)