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Open AccessArticle

Modulation Index and Phase Imbalance of Dual-Sideband Optical Carrier Suppression (DSB-OCS) in Optical Millimeter-Wave System

1
Wireless and Photonic Networks Research Centre of Excellence, Department of Computer and Communication Systems Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
2
Advanced Communication Engineering, Centre of Excellence (ACE-CoE), School of Computer and Communication Engineering, Universiti Malaysia Perlis, Kangar 01000, Perlis, Malaysia
3
Faculty of Engineering, Multimedia University, Cyberjaya 63000, Selangor, Malaysia
*
Author to whom correspondence should be addressed.
Photonics 2021, 8(5), 153; https://doi.org/10.3390/photonics8050153
Received: 20 March 2021 / Revised: 23 April 2021 / Accepted: 29 April 2021 / Published: 4 May 2021
(This article belongs to the Special Issue Radio over Fiber)
This paper presents a Dual-sideband Optical Carrier Suppression (DSB-OCS) technique which is used to generate an optical millimeter-wave (mm-wave) signal in radio over fiber (RoF) systems. The proposed system employs a Dual-Electrode Mach-Zehnder Modulator (DE-MZM) and a carrier of 40 GHz mm-wave for data transmission through the RoF systems. Characteristics determining the performance of the system, among which are the modulation index, phase imbalance and dispersion parameters, are included. The performance evaluations of the system show that the mm-wave signal output power follows MZM’s transfer function when the modulation index is raised. Moreover, the generated optical mm-wave signal power is affected by phase imbalance and optical splitting ratio. It is observed that the optical fiber dispersion influences the DSB-OCS system by decreasing the amplitude of the mm-wave and the signal-to-noise ratio (SNR). View Full-Text
Keywords: mm-wave; RoF; dual sideband optical carrier suppression; optical modulation index; optical fiber dispersion; phase imbalance mm-wave; RoF; dual sideband optical carrier suppression; optical modulation index; optical fiber dispersion; phase imbalance
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MDPI and ACS Style

Yaakob, S.; Mahmood, R.M.; Zan, Z.; Rashidi, C.B.M.; Mahmud, A.; Anas, S.B.A. Modulation Index and Phase Imbalance of Dual-Sideband Optical Carrier Suppression (DSB-OCS) in Optical Millimeter-Wave System. Photonics 2021, 8, 153. https://doi.org/10.3390/photonics8050153

AMA Style

Yaakob S, Mahmood RM, Zan Z, Rashidi CBM, Mahmud A, Anas SBA. Modulation Index and Phase Imbalance of Dual-Sideband Optical Carrier Suppression (DSB-OCS) in Optical Millimeter-Wave System. Photonics. 2021; 8(5):153. https://doi.org/10.3390/photonics8050153

Chicago/Turabian Style

Yaakob, Syamsuri; Mahmood, Rawa M.; Zan, Zuraidah; Rashidi, Che B.M.; Mahmud, Azwan; Anas, Siti B.A. 2021. "Modulation Index and Phase Imbalance of Dual-Sideband Optical Carrier Suppression (DSB-OCS) in Optical Millimeter-Wave System" Photonics 8, no. 5: 153. https://doi.org/10.3390/photonics8050153

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