Abstract: We present a new, multifunctional, tunable coupled-ring reflector (CRR) device where the two cascaded microring resonator-based All-Pass Filters (APFs) are now interconnected using a "crisscrossed port connection arrangement and then directly coupled" by a third directional coupler. We derive analytically and investigate numerically its intensity response. We show that it has many unique features such as: (i) asymmetric stopband/passband property, (ii) tunable dual-narrowband passband filter, and (iii) a unique quasi-interleaver characterized by dual-narrowband passband filter interleaved with broadband stopband filter. We also establish the critical parameter relationships that describe these rich responses and compare them to the typical CRR.

Abstract: We present, for the first time to the best our knowledge, the phase response of a novel Photonic Integrated Circuits (PICs)-based multifunctional, tunable, band-limited optical criss-crossed coupled-ring reflector (X-CRR) that was recently reported. This device has three unique features namely: (i) asymmetric stopband/passband, (ii) dual narrow band filter behavior, and (iii) unique quasi-interleaver characteristic. We derived and investigated the behaviors of the phase responses for each of these three unique features. They are important to fully characterize the X-CRR device.

Abstract: This paper has four goals. Firstly, we present, for the first time to the best of our knowledge, a minimalist-design, Linear Optical Electric Field Frequency Discriminator (LOEF-FD) for Microwave Photonic Link (MPL) using only a single Mach-Zehnder Interferometer (MZI) configured in unique folded-back arrangement. The standard configuration of LOEF-FD requires two MZI elements in serial arrangement with additional interferometric arm. The original minimalistdesign structure was first proposed by our group and used as an active device known as linear optical field modulator (LOFM) [8]. Here, we use it as a passive LOEF-FD for MPL application ...