Programmable optical processor chips: toward photonic RF filters with DSP-level flexibility and MHz-band selectivity

Chip-Scale Programmable Photonic Filters

DSP Compensation for Distortion in RF Filters

There is a growing demand for the high quality TV programs such as High Defini-tion TV (HDTV). The CATV network is often a suitable solution to address thisdemand using a CATV modem delivering high data rate digital signals in a cost ef-fective manner, thereby, utilizing a complex digital modulation scheme is inevitable.Exploiting complex modulation schemes, entails a more sophi...

Design of Photonic Half-band Filters Using Multirate DSP Technique LN Binh and VAT Tran DESIGN OF PHOTONIC HALF-BAND FILTERS USING DIGITAL SIGNAL PROCESSING TECHNIQUE

Programmable Photonic Lattice Filters in InGaAsP–InP

A novel monolithic programmable optical lattice filter consisting of unit cell building blocks is proposed. Single unit cells incorporating a ring resonator in one arm of a Mach–Zehnder are fabricated in an InGaAsP–InP material system. Programmable poles and zeros are demonstrated and monolithically cascaded unit cells are used to synthesize a flat passband.

Active Integrated Filters for RF-Photonic Channelizers

A theoretical study of RF-photonic channelizers using four architectures formed by active integrated filters with tunable gains is presented. The integrated filters are enabled by two- and four-port nano-photonic couplers (NPCs). Lossless and three individual manufacturing cases with high transmission, high reflection, and symmetric couplers are assumed in the work. NPCs behavior is dependent u...