Portal de Periódicos da CAPES

CMOS Compatible Reconfigurable Silicon Photonic Lattice Filters Using Cascaded Unit Cells for RF-Photonic Processing

2014; IEEE Photonics Society; Volume: 20; Issue: 4 Linguagem: Inglês

10.1109/jstqe.2013.2296233

1558-4542

Binbin Guan, Stevan S. Djordjevic, Nicolas K. Fontaine, Linjie Zhou, Salah Ibrahim, Ryan P. Scott, David J. Geisler, Zhi Ding, S. J. Ben Yoo,

Optical Network Technologies

This paper presents an overview of a complementary metal-oxide-semiconductor-compatible, programmable, analog optical lattice filter based on silicon unit cells arrayed in large-scale photonic integrated circuits. The unit cell employs a combination of a ring resonator and a Mach-Zehnder interferometer with tunable phase elements in both of the paths. Each proposed unit cell contributes a separately controllable pole and zero pair. Under various configurations, we experimentally achieved >60-dB two-tone spurious-free dynamic range. For more sophisticated signal processing, we experimentally demonstrated an optical lattice filter with four cascaded unit cells capable of dynamically reconfiguring between a bandpass filter and a notch filter. The reconfiguration of the unit-cell and four-cell silicon lattice filter is based on a recursive algorithm, which brings new possibilities to RF photonic processing and a wide range of applications with design scalability to a large number of poles and zeros. The experimental results and the recursive algorithms show potentials for scaling to higher order filter designs.