Yazar "Dheyab, Abdullah" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • [ X ]
    Öğe
    An erbium-doped EDFA amplifier pump with a 1550-Nm pumped erbium-doped fibre
    (Institute of Electrical and Electronics Engineers Inc., 2022) Dheyab, Abdullah; Kshash, Abdullah Dawood; Al-Sabti, Saif Mohamed Baraa; Abdulateef, Alaa Amjed; Abdulateef, Ihsan Amjad; Elwiya, Lina
    To take full use of the large bandwidth given by fibre optics and the flexibility afforded by wireless broadcasting on a widespread scale, RoF-based optical-wireless networks are widely regarded as the most important approach for improving capability, coverage, bandwidth, and mobility. WDM-RoF-PON architectures are described and demonstrated in this document. In order to verify the viability of the associated designs, a number of approaches including injection locking, direct/external modulation, re-modulation, and homodyne detection were used. The goal of this study is to create a WDM-RoF-PON using a reflective semiconductor optical amplifier (RSOA) to transmit 2.5 Gb/s baseband (BB) and 1.25 Gb/s wireless signalling downlink and 1 Gb/s (BB) signal in uplink over a 25 km single mode fibre (SMF) and wireless downlink signal over a 25 km SMF and 5.2 m free-spread fibre (FSF) link. This research also aims Downlink wired and remote communications may be successfully sent using both the confused light infusion plan and the twofold sideband optical transporter concealment (DSBCS) approach. In order to reuse the downlink carrier for uplink transmission, RSOA is employed.
  • [ X ]
    Öğe
    Parameters for non-solitons in fiber and their impact on transmission performance over long distances
    (Institute of Electrical and Electronics Engineers Inc., 2022) Salih, Mustafa Muhanad M.; Alrubaee, Saif H.; Dheyab, Abdullah; Abdulateef, Ihsan Amjad; Abdulsattar, Nejood Faisal; Abbas, Fatima Hashim
    One area of study that has gained popularity recently is communication technology. Due to the exponential growth in data transfer rates, optical fibre communication (OFC) is the only viable solution. The OFC technology provides extremely high bandwidth and rates of up to several gigabits per second. Optical fibre can carry a lot of data while being quite lightweight. Unfortunately, attenuation, dispersion, and nonlinearity are all phenomena of optical fibre transmission systems that might increase fibre signals. Rather of relying on dispersive effects, an improved approach lies in the use of optical solitons. Different from non-soliton communication systems, solitons do not grow in size as the distance between nodes increases. This research compares and contrasts the efficiency of solitons and non-solitons in fibres. By comparing the eye diagrams and bit error rates, we may deduce that soli-ton-based fibre systems are the most distortion-free, whereas non-soliton-based fibre systems exhibit some level of background noise.