On-chip optical filters with designable characteristics based on an interferometer with embedded silicon photonic structures
On-chip optical filters with designable characteristics based on an interferometer with embedded silicon photonic structures
We demonstrate chip-scale flat-top filters at near-IR wavelengths using negative index photonic crystal based Mach-Zehnder interferometers. Supported by full three-dimensional numerical simulations, we experimentally demonstrate a new approach for engineering high-pass, low-pass, bandpass, and band-reject filters, based on designing the photonic band diagram both within the bandgap frequency region and …