scholarly journals A Rayleigh Backscattering Noise Resilient and Cost Effective Single Fiber WDM-PON Scheme using DQPSK and Intensity Re-modulation Technique

2017 ◽  
Vol 170 (7) ◽  
pp. 24-30
Author(s):  
Muhammad Arshad ◽  
Nasir Saleem ◽  
Shahzada Alamgir
2012 ◽  
pp. 1958-1977
Author(s):  
Chi-Wai Chow

Passive optical network (PON) is considered as an attractive fiber-to-the-home (FTTH) technology. Wavelength division multiplexed (WDM) PON improves the utilization of fiber bandwidth through the use of wavelength domain. A cost-effective solution in WDM PON would use the same components in each optical networking unit (ONU), which should thus be independent of the wavelength assigned by the network. Optical carriers are distributed from the head-end office to different ONUs to produce the upstream signals. Various solutions of colorless ONUs will be discussed. Although the carrier distributed WDM PONs have many attractive features, a key issue that needs to be addressed is how best to control the impairments that arise from optical beat noise induced by Rayleigh backscattering (RB). Different RB components will be analyzed and RB mitigation schemes will be presented. Finally, some novel PONs including signal remodulation PONs, long reach PONs and wireless/wired PONs will be highlighted.


2012 ◽  
Vol 5 (4) ◽  
pp. 435-438
Author(s):  
Duan Liu ◽  
Songnian Fu ◽  
Ming Tang ◽  
Ping Shum ◽  
Deming Liu

2013 ◽  
Vol 9 (1) ◽  
pp. 38-41 ◽  
Author(s):  
Muhammad Idrees Afridi ◽  
Jie Zhang ◽  
Yong-li Zhao ◽  
Abdul Latif ◽  
Shahab Ahmed Niazi

Author(s):  
Chi-Wai Chow

Passive optical network (PON) is considered as an attractive fiber-to-the-home (FTTH) technology. Wavelength division multiplexed (WDM) PON improves the utilization of fiber bandwidth through the use of wavelength domain. A cost-effective solution in WDM PON would use the same components in each optical networking unit (ONU), which should thus be independent of the wavelength assigned by the network. Optical carriers are distributed from the head-end office to different ONUs to produce the upstream signals. Various solutions of colorless ONUs will be discussed. Although the carrier distributed WDM PONs have many attractive features, a key issue that needs to be addressed is how best to control the impairments that arise from optical beat noise induced by Rayleigh backscattering (RB). Different RB components will be analyzed and RB mitigation schemes will be presented. Finally, some novel PONs including signal remodulation PONs, long reach PONs and wireless/wired PONs will be highlighted.


2012 ◽  
Vol 8 (5) ◽  
pp. 380-383 ◽  
Author(s):  
Yousaf Khan ◽  
Chong-xiu Yu ◽  
Xiang-jun Xin ◽  
Amjad Ali ◽  
Aftab Husain ◽  
...  

2018 ◽  
Vol 40 (2) ◽  
pp. 87
Author(s):  
Joni Welman Simatupang ◽  
Puspa Devi Pukhrambam

In this paper, a rigorous theoretical analysis on optical beat interferometric (OBI) noises caused by the Rayleigh backscattering (RB) and Fresnel reflection (FR) effects on the performance of a single-fiber single-wavelength WDM-PON (wavelength division multiplexing-passive optical network) transmission system has been presented. Two categories of PON are evaluated: a conventional and a long-reach WDM-PON system. The conventional WDM-PON took place in an access network for a typical transmission distance of 20 km without any optical amplification at the remote node (RN). In this case, the gain of the optimal reflective optical network unit (ONU) will depend on the relative RB power and also the FRs magnitudes and locations along the optical fiber channel/transmission link. However, in the cases of the long-reach WDM-PON deployed at a transmission distance of 100 km or further, the optical amplifiers are indispensable to enhance the optical power budget and to prevent the effect of fiber nonlinearities that may occur at high power injection levels. Although the presence of an optical amplifier (OA) in a long-reach WDM-PON will actually give some additional gain to the whole system, as a result it also produces the worse RB and FR effects to the system itself. A crosstalk to signal (C/S) ratio is used as a key performance indicator of whether the transmission system is in good working order or not. Therefore, this study may provide insight and relevant information in terms of transmission optimization for WDM-PON systems and developments in the future. To educate on the current technologies and developments surrounding conventional and long-reach WDM-PON, a brief overview is provided in the background part of the introduction.


2017 ◽  
Vol 14 (4) ◽  
pp. 120-126 ◽  
Author(s):  
Zhisheng Li ◽  
Qiang Dou ◽  
Lei Wang ◽  
Peijun Yang ◽  
Chaobing Zhou

Optik ◽  
2019 ◽  
Author(s):  
Rahat Ullah ◽  
Bo Liu ◽  
Yaya Mao ◽  
Feng Tian ◽  
Muhammad Saad Khan ◽  
...  
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