All-Optical, Compact, High-Precision, and Integrated Proposal for Design of Optical Spectrum Analyzer Using Ring Resonator for DWDM Systems

All-optical integrated multiplexer/demultiplexer and add-drop multiplexer using array of ring resonators for passive optical network

“…An OADM based on MRs with radii in the order of tens of micrometers, however, allows for extremely smallarea devices. Due to the highly selective MR filter characteristic, a minimum component implementation of an OADM can already be realized with MRs while additional switching functionality is easily implemented [11]. So, a proposal for optical Mux/Dmux and OADM including large bandwidth for main channels and narrowband filters for extraction of channels are excellent for integrated optical system designers.…”

“…So, a proposal for optical Mux/Dmux and OADM including large bandwidth for main channels and narrowband filters for extraction of channels are excellent for integrated optical system designers. The proposed idea is used ring resonator element that was studied extremely [6][7][8][9][10][11]. Microring resonators are ideal candidates for very large scale integrated (VLSI) photonic circuits, as they provide a wide range of optical signal processing functions while being ultra compact.…”

“…Microring resonators are ideal candidates for very large scale integrated (VLSI) photonic circuits, as they provide a wide range of optical signal processing functions while being ultra compact. Many practical devices incorporating microrings as the building block elements have been proposed and/or demonstrated, including analog to digital converter [2], channel dropping filters [4], and spectrum analyzer for DWDM systems [11]. Fabrication devices with ring radii ranging from 4 to 25 m µ have been reported.…”