Abstract
In this paper, the basic theoretical foundations regarding a DWDM [Dense Wavelength Division Multiplexing] network when using Raman configurations with DCF [Dispersion Compensation Fiber] are studied, through the revision of: linear effects, such as noise, loss, chromatic dispersion and PMD [Polarization Mode Dispersion]; and nonlinear effects, such as Self-Phase Modulation [SPM], Cross-Phase Modulation [XPM] and Four-Wave Mixing [FWM], compared to Optical Monitoring Parameters [OPM].
Highlights
At present, data transport networks must be able to offer high levels of bandwidth due to the appearance of numerous applications such as video conferencing, growing internet traffic, real-time operations, high-speed services, etc
To obtain a Raman amplifier using the optical fiber as a gain medium, the pumping signal and the useful signal must be transmitted on the same fiber, regardless of the direction of propagation; the SRS is produced
Forzati, Berntson, and Moartensson (2008) demonstrate that asynchronous phase modulation increases transmission for the NRZ-OOK system in ultra-long distance WDM systems; in the same line of analysis, we find Alzate and Cárdenas (2011), who highlight advanced modulation formats for the transmission of 40/100Gb/s, compared to the standard technology of 10Gb/s, on optical fiber in short and long distance, as well as some degradations caused by: noise produced by optical amplifiers, chromatic dispersion, polarization mode dispersion (PMD) and effects of fiber nonlinearities
Summary
Data transport networks must be able to offer high levels of bandwidth due to the appearance of numerous applications such as video conferencing, growing internet traffic, real-time operations, high-speed services, etc. The constant growth of this demand has brought existing technologies to their limits; a situation that leads to require new concepts and innovations that allow the implementation of more robust networks, with greater capacity and higher transmission speeds. These needs that have arisen as a result of technological development have made optical fiber an attractive and highly projected medium to support the resources demanded by services of users, in terms of capacity and scope (García, 2011). This article focuses on performing an analysis in DWDM networks when using Raman configurations with DCF fibers; for this, it is initially necessary to review basic theoretical fundamentals, bibliographic revision and works related to the subject in reference
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