Abstract
In this work, a record of 16 channels, with future channel spacing in the telecommunication standardization sector of the International Telecommunications Union G.694.1 (ITU-T G.694.1) for Dense Wavelength Division Multiplexing (DWDM) (i.e., 12.5 GHz), is simulated and tested. This work is done to realize a proposed high capacity DWDM-Passive Optical Network (DWDM-PON) system. These specifications are associated with enhancing the upstream (US) capacity to 2.5 Gb/s over a 25 km Single-Mode Fiber (SMF) transmission and producing a noteworthy average Bit Error Rate (BER) of 10−12 during the system’s evaluation process. These performance indicators are achieved through design optimization of the cross-seeding Rayleigh Backscattering (RB) elimination technique. This optimization has successfully reduced (compared to the cross-seeding related literature) the simulated DWDM-PON components and maintained an effective Rayleigh Backscattering elimination with the aforementioned system’s performance enhancement and capacity enlargement.
Highlights
Today, Time Division Multiplexing-Passive Optical Network (TDM-PON) standard is used.TDM-PON splits the optical power over a limited number of users based on a synchronized time slot in which all users share the available bandwidth
Wavelength Division Multiplexing-Passive Optical Network (WDM-PON) is the future of the next-generation network, which achieves the full usage of bandwidth by assigning for each user his own wavelength that creates a virtual connection between the Central Office (CO) and the user terminal [2]
Methods for satisfying the most critical requirements for Dense Wavelength Division Multiplexing (DWDM)-PON systems will be reviewed
Summary
Time Division Multiplexing-Passive Optical Network (TDM-PON) standard is used. To meet low-cost ONU colorless operation requirements, several techniques, devices, and architectures are proposed, tested, and evaluated. Methods for satisfying the most critical requirements for DWDM-PON systems (i.e., a low-cost ONU colorless operation with remarkable RB elimination generated by reflective transmitters) will be reviewed. Techniques can efficiently avoid the RB effect and achieve a reasonable level of wavelength utilization by adopting a centralized light source [18,19] These techniques suffer from complex modulation techniques that add a huge/moderate cost to the colorless ONU and require a large channel spacing [18,19,20]. The cross-seeding RB elimination technique, as introduced recently in [22,23], provides remarkable RB mitigation, a high level of wavelength utilization, and a low-cost colorless ONU. Stage represents the input light source, which consists stages, as illustrated in Figure 1. (A) Stage 1 represents the input light source, which consists of eight of eight lightthat sources have a wavelength
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