Abstract
The exponential growth of data traffic related to the progress of newest technologies (e.g., 4K/8K live stream videos, virtual reality (VR) applications, etc.), new services, and a fast-growing number of end-users require higher bandwidth and increase of user bitrate, as a result pushing hard the telecommunication infrastructure for upgrading. Expected usage of more complex modulation formats in fiber optical link infrastructure for cellular network transmission and data center interconnections (DCI) are still affected with fundamental chromatic dispersion influence on the signal quality, which consequently increases bit error rate (BER). We experimentally demonstrate a real-time comparison of commercially used dispersion compensation techniques for 100 GHz spaced dense wavelength division multiplexed (DWDM) optical transmission system with a total transmission speed capacity of 160 Gbit/s.
Highlights
The newest technology trends being transformed by technology in a variety of ways of next-decide fulfilled by consumer-driven data consumption eventually lead to unprecedented pressures for fiber optical metro, i.e. longhaul networks
We implemented experimentally two different chromatic dispersion (CD) compensation techniques to observe the quality of the received signal and obtain limiting factors of physical parameters, the impact of used components, such as fiber Bragg grating dispersion compensation module (FBG-DCM) and widely used dispersion compensating fiber allowing us to observe additional non-linear optical effects (NOE)
The problems of transmission capacity and channel utilization are related to the correct choice of modulation format, which is a key to enable higher spectral efficiency and potentially provide higher data transmission speeds through fiber optical networks with limited bandwidth, where one of the physical main distance-limiting factors is chromatic dispersion, which leads to inter-symbol interference and distortion of the signal waveform
Summary
The newest technology trends being transformed by technology in a variety of ways of next-decide fulfilled by consumer-driven data consumption eventually lead to unprecedented pressures for fiber optical metro, i.e. longhaul networks. With the massive deployment of coherent optical fiber transmission systems at 100 Gbit/s in backbone networks, the pressure has shifted to the metro networks. Communication infrastructures of the decade will be based on the integration of information and communication technologies (ICT) to optimize the efficiency of operations and large-scale deployment of connected and automated. Mobility (CAM), cloud computing, wireless sensor networks, e.g., large scale next-generation cellular network coverage connections provide possibility in urban areas [1]– [3]. The evolution towards higher bitrates is mainly driven by the point-to-point (P2P) Fiber-to-the-home/building (FTTh/b) and wireless fronthaul, e.g., new mobile interfaces for fifth-generation (5G), where 25 Gbit/s could be needed soon for either backhauling or new functional split based interfaces [4]–[6]. Depending on the optical domain dispersion profile, the effects of CD can be either removed locally by fiber Bragg grating (FBG) or can be compensated throughout the dispersion-compensating fiber (DCF) [3], [7]
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