Multi-Cavity Optoelectronic Oscillators Based on an Integrated Array of Subwavelength Grating Waveguides

[EN] We demonstrate experimentally an indexvariable optical true time delay (OTTDL) based on an array of forty subwavelength grating (SWG) waveguides on silicon-oninsulator (SOI). Using the measured data and numerical simulations, we determine the oscillation spectra, phase noise, and frequency tuning of the multi-cavity OEOs. Moreover, the proposed SWG based multi-cavity OEOs do not require highly selective RF filters, which enables high performance of SWG based multi-cavity OEO.Wang, Y.; Sun, H.; Khalil, M.; Dong, W.; Gasulla Mestre, I.; Capmany Francoy, J.; Chen, LR. (2020). Multi-Cavity Optoelectronic Oscillators Based on an Integrated Array of Subwavelength Grating Waveguides. IEEE. 184-187. https://doi.org/10.23919/MWP48676.2020.931449518418