Abstract
Traditional visible light communication (VLC) via light-emitting diodes (LEDs) employs the on-off keying (OOK) modulation scheme. Even though optical frequency modulation has many advantages, it is hardly used for LED VLC because a high carrier frequency cannot be applied to the LED cavity due to the resistance-capacitance limit. Here, by monolithically integrating an LED with an integrated digital transducer, we experimentally demonstrate the intermixing of gigahertz surface acoustic waves and electrical data signals in the LED cavity at room temperature. An optical transmitter was realized by in situ frequency up-conversion of the data signals from an LED, which has the advantages of improving transmission performance by up-shifting the data spectrum away from low-frequency noise. Our proposed integrated acousto-optic transducer opens a new developing scheme on the frequency up-mixed data encoding of an LED beyond its inherent modulation bandwidth for future VLC.
© 2021 Optical Society of America
Full Article | PDF ArticleMore Like This
Shivani Rajendra Teli, Klara Eollosova, Stanislav Zvanovec, Zabih Ghassemlooy, and Matej Komanec
Opt. Lett. 46(11) 2622-2625 (2021)
Xin Liu, Zixian Wei, Mutong Li, Lei Wang, Zhongxu Liu, Changyuan Yu, Lai Wang, Yi Luo, and H. Y. Fu
Opt. Lett. 46(12) 2888-2891 (2021)
Zixian Wei, Zhongxu Liu, Xin Liu, Lei Wang, Lai Wang, Changyuan Yu, and H. Y. Fu
Opt. Lett. 46(18) 4670-4673 (2021)