Radio-over-fiber system with octuple frequency optical millimeter-wave signal generation using dual-parallel Mach–Zehnder modulator based on four-wave mixing in semiconductor optical amplifier

Hui Zhou; Yuting Zeng; Ming Chen; Yunlong Shen

doi:10.1117/1.OE.57.3.036101

5 March 2018 Radio-over-fiber system with octuple frequency optical millimeter-wave signal generation using dual-parallel Mach–Zehnder modulator based on four-wave mixing in semiconductor optical amplifier

Hui Zhou, Yuting Zeng, Ming Chen, Yunlong Shen

Author Affiliations +

Funded by: National Natural Science Foundation of China (NSFC), Natural Science Foundation of Hunan Province, Scientific Research Fund of Hunan Provincial Education Department, Education Department Foundation of Hunan Province

Optical Engineering, Vol. 57, Issue 3, 036101 (March 2018). https://doi.org/10.1117/1.OE.57.3.036101

Abstract

We have proposed a scheme of radio-over-fiber (RoF) system employing a dual-parallel Mach–Zehnder modulator (DP-MZM) based on four-wave mixing (FWM) in a semiconductor optical amplifier (SOA). In this scheme, the pump and the signal are generated by properly adjusting the direct current bias, modulation index of the DP-MZM, and the phase difference between the sub-MZMs. Because of the pump and the signal deriving from the same optical wave, the polarization states of the two lightwaves are copolarized. The single-pump FWM is polarization insensitive. After FWM and optical filtering, the optical millimeter-wave with octuple frequency is generated. About 40-GHz RoF system with a 2.5-Gbit / s signal is implemented by numerical simulation; the result shows that it has a good performance after the signal is transmitted over 40-km single-mode fiber. Then, the effects of the SOA’s injection current and the carrier-to-sideband ratio on the system performance are discussed by simulation, and the optimum value for the system is obtained.

Citation Download Citation

Hui Zhou, Yuting Zeng, Ming Chen, and Yunlong Shen "Radio-over-fiber system with octuple frequency optical millimeter-wave signal generation using dual-parallel Mach–Zehnder modulator based on four-wave mixing in semiconductor optical amplifier," Optical Engineering 57(3), 036101 (5 March 2018). https://doi.org/10.1117/1.OE.57.3.036101

Received: 29 September 2017; Accepted: 16 January 2018; Published: 5 March 2018

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