Tunable Mm-Wave A-RoF Transmission Scheme Employing an Optical Frequency Comb and Dual-Stage Active Demultiplexer

Anovel dual-stage optical frequency comb (OFC) demultiplexer, for use in a photonic millimeter-wave (mmW) generator, is demonstrated. Unlike other demultiplexing techniques, the proposed method features single path both tones used mmW generation, thus eliminating challenges related to mismatch of lengths. In addition, active provides filtering, amplification and data modulation tones, all device. this article, we demonstrate operational principle demultiplexer-enabled verify quality (beat tone width ∼13 Hz) stability (power fluctuation ∼0.26 dB) generated signal validate performance an A-RoF system employing For demonstration, 64-QAM UF-OFDM signals, at frequencies 29.5 38 GHz, are transmitted over 25 km single-mode fiber. A BER 3.2e-4 GHz 1.6e-4 achieved without amplifiers, showing great potential technique. Finally, case study A- RoF distribution system, three different presented. We that transmitter, comparison larger power budget (> 6 can be extend reach and/or increase number remote radio units served using OFC.