Performance analysis of an ultra high capacity 1 Tbps DWDM-RoF system for very narrow channel spacing

Sarup, Viyoma; Gupta, Amit

doi:10.1109/wocn.2014.6923048

Cited by 11 publications

(3 citation statements)

References 8 publications

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“…This metric measures the quality of the signal. The Q-factor's lower range determines the level of the optical signal's dispersion effects [91]. A higher Q-factor shows lower dispersive effects.…”

Section: Q-factormentioning

confidence: 99%

Review of Compensation and Dispersion Techniques for Fiber Optic Lightpath Networks

Sakthivel,

Mansoor Alam,

Abu Bakar Sajak

et al. 2024

IJCDS

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Fiber optic communication system offers high-speed, long-distance connectivity and integrates with effective data transmission for modern world applications. The primary challenges in optical communication lead to the detrimental impact of dispersion, which introduces more signal distortion and lowers the quality of data transmission. This research aim is to enhance the performance and reliability of the optical system design by addressing dispersion challenges. This review explores the fundamental analysis of dispersion, such as chromatic, polarization mode, and modal dispersion, and the factors that influence the presence of dispersion characteristics. This research also provides a detailed analysis of dispersion compensation techniques and their necessity for maintaining the integrity of optical communication. Furthermore, the proposed review analyses the passive and active compensation techniques and highlights their significance and limitations. Active dispersion compensation, such as dispersion compensating modules and Digital signal processing methods, are investigated for dynamic optical networks and their adaptability. However, the passive dispersion compensation techniques, such as fiber Bragg gratings and dispersion-compensating fibers, are examined in detail, listing their ability for dispersion mitigation effects. Finally, this comprehensive review provides key insights into the developments and prospects in dispersion compensation techniques

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Section: Q-factormentioning

confidence: 99%

Review of Compensation and Dispersion Techniques for Fiber Optic Lightpath Networks

Sakthivel,

Mansoor Alam,

Abu Bakar Sajak

et al. 2024

IJCDS

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“…The advanced modulated information is optically imposed over two HG orthogonal modes to form a MDM channel. These eight MDM channels are then multiplexed at different infrared wavelengths near 1550 nm by a dense wavelength division multiplexer (DWDM) and ampli ed by an optical boost ampli er (OBA) to improve spectral e ciency and reduce channel attenuation [22][23] [24]. The OBA-EDFA implementation has shown an overall enhancement in FSO link distance and its reliability [25][26].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Hermite Gaussian 8×40 Gb/s DWDM-FSO System using Advance Modulation Schemes

Sinha

Kumar

2022

Preprint

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Transmission of high-speed optical signals across the free space channel is highly dependent on external characteristics such as scintillation and attenuation as a result of atmospheric conditions that are constantly changing. This paper describes the architecture of an 8×40 Gbps dense wavelength division multiplexed (DWDM)-FSO transmission system based on Hermite Gaussian (HG) channels and incorporates various advanced modulation techniques. In addition, the implementation of a spatial mode laser and an optical boost amplifier decreases the effect of degradation caused by atmospheric attenuation and extends the optical link distance. The performance of the proposed system design is investigated for six modulation schemes including 64-QAM, 16-QAM, 4-QAM, 8-PSK, DPSK, and DQPSK modulations in different atmospheric attenuations conditions under a strong Gamma-Gamma (GG) turbulent channel. It is reported that the optical link performance degrades exponentially with an increase in signal to noise ratio (SNR) for the modulation schemes listed above. 4-QAM and DPSK modulations outperform the rest of the modulation methods for low SNR values as the optical link distance increases. The successful signal transmission of 8×40 Gb/s data over the transmission link distance of about 5 km with an acceptable BER level of 10− 6 is achieved.

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“…The Erbium Doped Fiber Amplifier (EDFA) and Semiconductor Optical Amplifier (SOA) were used to achieve highly narrow channel spacing. When used as a post amplifier, SOA is found to perform linearly and better than EDFA [12]. Abdul-Rahaim, Murdas, et al in 2015 demonstrated a Polarization Division Multiplexing Coherent Optical Orthogonal Frequency-Division Multiplexing (PDM CO-OFDM) scheme with the modulation formats of (QPSK and 16-QAM) at bit rates of 40 and 100 Gb/s.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Dispersion Compensation Fiber-based Coherent Optical OFDM-WDM for Long Haul RoF

Yousif

Almashhadani²,

Rasool

2022

Al-Kitab J. Pure Sci.

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Demanding extra Bandwidth and high data rates has been meet by the integration both of wired and wireless communication systems. For that the Radio over Fiber (RoF) technology has gained a traction. In this article a Coherent Optical Orthogonal Frequency Division Multiplexing (CO-OFDM) is proposed as the main wired system for transmitting data at high rates suffers from the polarization mode dispersion and chromatic dispersion of the optical channel which mitigates the data rates. Thus, to combat these limitations a Desperation Compensation Fiber (DCF) which adds negative attenuation to the optical signals transmitted in optical fiber is suggested. Moreover, the addition of Wavelength- Division- Multiplexing (WDM) to the system of transmission provides better bandwidth saving, high data rates, and better spectral efficiency, and power utilization. The efficiency of high data rate CO-OFDM integrated with RoF for long haul transmission between 100km and 450km with data rates up to 10 Gbps have been investigated in this article with SMF-DCF with 16 DPSK and 16-QAM modulations schemes respectively. The simulation results showed that the proposed system can achieve a high data rate up to 55 Gbps but when integrated with WDM, with a fiber link length can be increased to up to 6600 kilometers, with highest data rate up to 1.65 Tbps.

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Performance analysis of an ultra high capacity 1 Tbps DWDM-RoF system for very narrow channel spacing

Cited by 11 publications

References 8 publications

Review of Compensation and Dispersion Techniques for Fiber Optic Lightpath Networks

Review of Compensation and Dispersion Techniques for Fiber Optic Lightpath Networks

Performance Analysis of Hermite Gaussian 8×40 Gb/s DWDM-FSO System using Advance Modulation Schemes

Performance Evaluation of Dispersion Compensation Fiber-based Coherent Optical OFDM-WDM for Long Haul RoF

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