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In this paper, the optical power transfer promoted by long-period gratings (LPGs) inscribed in Multicore Fibers (MCFs) is studied. Simple analytical expressions that describe the mode power's evolution along the LPGs in a 1+n core fiber are derived from the coupled mode equations. The viability of using this technique to develop a device that distribute a single pump source by all the cores of MCFs...
In this paper, recent progress on ultra-dense, space division multiplexed (SDM) optical transmission towards multi-Peta bit/s are reviewed. By using 6-mode 19-core fiber, we have demonstrated 2.05 Pbit/s transmission over 9.8 km just using C-band. High spatial multiplicity of 114 and ultra-high aggregate spectral efficiency of 456 bit/s/Hz/fiber have been achieved.
Leveraging on reference implementations of PCEP and BGP-LS protocols, we have developed an active stateful multilayer PCE extension for the open-source Net2Plan planning tool to orchestrate multilayer service provisioning and restoration in IP/MPLS-over-WDM networks.
In this paper, we will demonstrate the possibility of opening a new telecommunications transmission window around the 2 µm wavelength, in order to exploit the potential low loss of hollow-core photonic bandgap fibers, with the benefits of significantly lower non-linearity and latency. We will show recent efforts developing a dense wavelength division multiplexing testbed at this waveband, with 100...
Public procurements are essential legislative procedures to ensure acquiring best possible costs, to meet the needs of the procurer in terms of quality and quantity, time, and location. In this paper, we provide you with the information about Pre-Commercial Procurement (PCP) procedures being beneficially experienced in a specific area of Optical Networking in public sector, especially National Research...
We perform a benchmarking of three different fiber types and two different implementation of flexible rate transceivers in a fixed-grid reconfigurable transparent optical network scenario. Results are obtained through a Monte Carlo based method called the Statistical Network Assessment Process (SNAP). Using the SNAP framework, we derive the statistics of the average bitrate per lightpath on a Pan...
Space-division multiplexing (SDM) using a multi-core fiber (MCF) is an attractive technology that will greatly enhance the transmission capacity of optical fibers for the future needs of high-capacity optical communications, so accommodating the increasing amount of data traffic in our information society. This is why MCFs is one of the candidate technologies, if it is properly designed. The optical...
In order to pinpoint the most promising transport architectures for lowering the cost-per-bit, planning and forecasting tools must be equipped with the resources to assess different types of architectures used in the client- and line-side, as well as in the interconnection between them. This includes, for instance, being able to compare planning scenarios based on fixed transponders or Sliceable Bandwidth-Variable...
Long-Reach Passive Optical Networks (LR-PONs) consolidates of metropolitan and access networks by extending the distance between the Central Office (CO) and the end users, which in turn simplifies the network and potentially brings cost savings. With the explosively growing of data traffic, Time and Wavelength Division Multiplexing (TWDM) technology have also been employed in LR-PON to realize high...
Single-frequency fiber lasers are specific devices suitable for optical communication, interferometric sensing, coherent light detection and ranging, laser spectroscopy, etc. Typical DBR fiber laser consists of active fiber region with two fiber Bragg gratings (FBGs) at the ends serving as resonant mirrors. For single-frequency lasing the length of an amplifying fiber can be determined correctly via...
Complementary metal-oxide semiconductor (CMOS) provides an infrastructure for the implementation of a range of integrated photonic devices and circuits that have the potential to replace the state-of-the-art commercial optical devices in telecommunications, providing system-level gains at a lower cost. In this work, we study the potential of CMOS photonics for long-haul communication systems. We compare...
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