Abstract

A novel ultra-compact photonic tuneable notch filter with large bandwidth, high extinction ratio, fast response, and flat stopband is modeled and designed. It consists of a silicon-based ring resonator with one-dimensional photonic crystal superimposed onto a ring portion. Engineering the defects into the photonic crystal section allows to achieve the equalization of the bottom band of the filter response. Large bandwidth (B = 10.43 GHz) and high extinction ratio (ER = 41 dB) have been attained with a frequency response of the first-order Butterworth filter type. Continuous and wide range tunability of the central frequency (15 GHz) has been obtained by using the carrier injection technique, together with fast reconfigurability (≈1 ns) and power consumption of 47 mW. The device footprint is as very small as about 150 μm². This performance makes the proposed device suitable for several filtering applications, such as wireless networks (5G) and telecommunication reconfigurable payloads in Telecom and Space scenario, respectively.

© 2019 IEEE

Ultra-compact high order ring resonator filters using submicron silicon photonic wires for on-chip optical interconnects

Fengnian Xia, Mike Rooks, Lidija Sekaric, and Yurii Vlasov
Opt. Express 15(19) 11934-11941 (2007)

Ultra-high peak rejection notch microwave photonic filter using a single silicon microring resonator

Yun Long and Jian Wang
Opt. Express 23(14) 17739-17750 (2015)

Performance improvements of a tunable bandpass microwave photonic filter based on a notch ring resonator using phase modulation with dual optical carriers

Jing Li, Pengfei Zheng, Guohua Hu, Ruohu Zhang, Binfeng Yun, and Yiping Cui
Opt. Express 27(7) 9705-9715 (2019)

Si₃N₄ ring resonator-based microwave photonic notch filter with an ultrahigh peak rejection

David Marpaung, Blair Morrison, Ravi Pant, Chris Roeloffzen, Arne Leinse, Marcel Hoekman, Rene Heideman, and Benjamin J. Eggleton
Opt. Express 21(20) 23286-23294 (2013)

Ultra-low power generation of twin photons in a compact silicon ring resonator

Stefano Azzini, Davide Grassani, Michael J. Strain, Marc Sorel, L. G. Helt, J. E. Sipe, Marco Liscidini, Matteo Galli, and Daniele Bajoni
Opt. Express 20(21) 23100-23107 (2012)