Bi-directional Transmission of 800 Gbps Using 40 Channels DWDM System for Long Haul Communication

Qureshi, Sarib; Qamar, Farhan; Qamar, Nouman; Shahzadi, Romana; Ali, Mudassar; Khan, Muhammad Faisal; Haroon, Farhan

doi:10.1109/icomet48670.2020.9073834

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…The WDM multiplexer represented the DWDM technique in the architecture. The DWDM technique is flexible, allowing narrowing of the spacing of channels to increase the capacity of the transmitted signal as well the number of channels for the same purpose [33]. In this work, eight channels were used with a channel spacing of 0.8 nm.…”

Section: Simulation Setupmentioning

confidence: 99%

Effect of Phase Noise on the Optical Millimeter-Wave Signal in the DWDM-RoF System

et al. 2022

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In this study, we examined the effect of phase noise on the optical millimeter-wave (mm-wave) signal in a dense wavelength division multiplexing radio-over-fiber (DWDM-RoF) system. A single modulator was used to generate the optical mm-wave signal in the DWDM-RoF system. This paper addresses the impact of phase noise, which results from phase imbalance, on the optical mm-wave signal. To lower the effect of phase noise on the optical mm-wave signal, the phase imbalance should be controlled. The phase imbalance can be controlled and decreased by adjusting the phase at the phase shift (PS). The system performance was analyzed using various parameters such as bit error rate (BER), signal-to-noise ratio (SNR), optical signal to noise ratio (OSNR), and error vector magnitude (EVM). From the results, we found the phase imbalance affected the optical mm-wave signal due to the imbalanced splitting of the signal intensity at the MZM. The phase imbalance impacts the phase noise, which impacts the optical mm-wave signal. The phase noise could be decreased by controlling the phase imbalance at the phase of 5π/12. The best results at the phase of 5π/12 were collected for phase noise at 0.02 degrees.

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Section: Simulation Setupmentioning

confidence: 99%

Effect of Phase Noise on the Optical Millimeter-Wave Signal in the DWDM-RoF System

et al. 2022

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“…The performance of the system is good, but it's designed for shorter reach. Qureshi et al [34] proposed a model of the bi-directional DWDM system with 40 channels and 10 Gbps data rate. In this paper, pre, post and symmetric techniques with RZ and NRZ modulations are used.…”

Section: Literature Reviewmentioning

confidence: 99%

Investigation of long-haul optical transmission systems: diverse chirped FBGs with DCF for 300km length of SMF

2022

IJATEE

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Further, DCF and FBG techniques are reported to conflict the dispersion or PWB in optical fiber transmission system (OFTS) by selecting the different location as pre, post, and symmetric compensation [1113]. The comparative analysis for different long-haul optical transmission system has also been designed through DCF and FBGs techniques. It has been observed that the DCF and FBG give good performance [10]. Furthermore, comparative analysis of different hybridizationdispersion-compensation techniques like chirped fiber Bragg grating (CFBGs), DCF+FBG, optical phase conjugation (OPC) +DCF, FBG+DCF+OPC are available in the literature. These techniques overcome the dispersion phenomena, but the cost of system increases [1, 5, 1420]. According to the literature [1120], most of the investigations emphasize on DCF, FBG, OPC+DCF and DCF+FBG techniques as dispersion compensator, but the cost of implementation is still high and challengeable. It is also observed that the performance of OFTS system

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40 Gb/s × 8 WDM Bi-directional Transmission in 100 GHz Channel Spacing using Dispersion Compensating Fiber

Marlina

Afifah

Kishikawa

et al. 2021

2021 30th Wireless and Optical Communications Conference (WOCC)

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Bi-directional Transmission of 800 Gbps Using 40 Channels DWDM System for Long Haul Communication

Cited by 6 publications

References 16 publications

Effect of Phase Noise on the Optical Millimeter-Wave Signal in the DWDM-RoF System

Effect of Phase Noise on the Optical Millimeter-Wave Signal in the DWDM-RoF System

Investigation of long-haul optical transmission systems: diverse chirped FBGs with DCF for 300km length of SMF

40 Gb/s × 8 WDM Bi-directional Transmission in 100 GHz Channel Spacing using Dispersion Compensating Fiber

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