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Ultra-high Q multimode waveguide ring resonators for microwave photonics signal processing

Publication Type:

Journal Article


2015 International Topical Meeting on Microwave Photonics (MWP) (2015)



We propose and experimentally demonstrate a novel type of silicon race-track resonators realized in standard SOI process with quality factors above 1.3 million. The proposed solution uses multi-mode waveguides (MMWG) and couplers in order to dramatically reduce the waveguide loss in the coupler and in the ring cavity, and therefore achieve high Q factors compared to previous implementations of resonators in SOI without sacrificing the free-spectral range. The resonator has been employed to demonstrate an RF notch filter with a 150 MHz stopband and 8 GHz tuning range.

Faculty Member(s): 
Research Area(s): 
Photonics and Optics