P. Šalík, F. Čertík, R. Roka, Duobinary modulation format in optical communication systems. Adv. Signal Process. 3(1), 1–7 (2015)

Article  Google Scholar 

Rajeev, C. Kumar, Impact of various optical amplifiers on the performance of duobinary and modified duobinary modulated 460 channels ultra-dense WDM system. J. Opt. 53(3), 2815–2835 (2024)

Article  MathSciNet  Google Scholar 

F. Qamar et al., Secure duobinary signal transmission in optical communication networks for high performance & reliability. IEEE Access 5, 17795–17802 (2017)

Article  Google Scholar 

M.M. Eid et al., QAM receiver based on light amplifiers measured with effective role of optical coherent duobinary transmitter. J. Opt. Commun. 45, s445–s452 (2022)

Article  Google Scholar 

F.M. Mustafa et al., Chromatic dispersion compensation by cascaded FBG with duobinary modulation scheme. Opt. Quantum Electron. 54(12), 819 (2022)

Article  Google Scholar 

C. Bluemm, et al. 800Gb/s PAM4 transmission over 10km SSMF enabled by low-complex duobinary neural network equalization, in 2022 European Conference on Optical Communication (ECOC). IEEE (2022)

S.K. Jalal, R.Z.Y. Al-Maqdici, Enhanced performance of 32 GHz up to 200 km vertical cavity surface emitting laser (VCSEL) for FrontHaul radio over fiber system. Arab. J. Sci. Eng. 48(5), 7043–7058 (2023)

Article  Google Scholar 

S.K. Jalal, R.Z.Y. Al-Maqdici, Radio over fiber system-based direct modulation VCSEL optical source. J. Opt. 53(2), 1144–1154 (2024)

Article  Google Scholar 

X. He, Vertical cavity surface emitting laser technology: a comprehensive review. Appl. Comput. Eng. 70, 188–193 (2024)

Article  Google Scholar 

S.K. Jalal, R.Z.Y. Al-Maqdici, 160-Gbps-8-port WDM PON-based RZ coder with vertical cavity surface-emitting laser (VCSEL) and CW laser. J. Opt. 53(3), 2609–2624 (2024)

Article  Google Scholar 

R.Z. Yousif, S.K. Jalal, F.H. Al-Mukhtar, Enhanced passive optical network system-based VCSEL and PSK electrical modulator for 5th generation. Wirel. Netw. 30(4), 2203–2217 (2024)

Article  Google Scholar 

R.Z.Y. Al-Maqdici, S.K. Jalal, S.H. Ali, Investigating the impact of modulation peak current in improving the performance of OFDM-RoF system-based VCSEL for 5G system. J. Opt. 53(5), 4308–4324 (2024)

Article  Google Scholar 

E. Vasani, V. Shah, Investigation of free space optical communication using spectrum slicing under different weather condition. Opt. Rev. 29(5), 383–388 (2022)

Article  Google Scholar 

A. Ghazi et al., Design of a hybrid WDMA-Optical-CDMA over multi-mode fiber transmission system based on LG modes for short haul-local area network, in Journal of Physics: Conference Series. IOP Publishing (2021)

A. Ghazi et al., Donut modes in space wavelength division multiplexing: multimode optical fiber transmission based on electrical feedback equalizer, in Journal of Physics: Conference Series. IOP Publishing (2021)

S.K. Jalal et al., An optimized up to 16-user and 160 Gbps dual cascaded optical modulators PON-based power combined array fiber Bragg grating and pre-distortion device for 5th G system. Photon Netw. Commun. 49(1), 1–14 (2025)

Article  Google Scholar 

H.M. Shukur et al., Nanophotonic devices for radio over fiber (RoF) technologies in telecommunications networks. Radioelectron. Nanosyst. Inf. Technol. 16(5), 589–604 (2024)

Google Scholar 

B. Tamrakar, K. Singh, P. Kumar, A comparative analysis between different optical modulators of analog and digital radio over fiber (RoF) link for the next-generation networks. J. Opt. 52(4), 1628–1638 (2023)

Article  Google Scholar 

R.Z.Y. Al-Maqdici, S.K. Jalal, S.H. Ali, Investigating the impact of modulation peak current in improving the performance of OFDM-RoF system-based VCSEL for 5G system. J. Opt. 53, 4308–4324 (2024)

Article  Google Scholar 

T. Ivaniga, P. Ivaniga, Comparison of the optical amplifiers EDFA and SOA based on the BER and Q-factor in C-band. Adv. Opt. Technol. 2017, 9053582 (2017)

Article  Google Scholar 

S.K. Jalal, R.Z.Y. Al-Maqdici, Improved passive optical network RoF system based vertical cavity-surface emitting laser (VCSEL) optical source external modulation. Eng. Res. Express 5(3), 035067 (2023)

Article  Google Scholar