Author
Jose-Manuel Delgado Mendinueta
Bio: Jose-Manuel Delgado Mendinueta is an academic researcher from National Institute of Information and Communications Technology. The author has contributed to research in topics: Homodyne detection & Passive optical network. The author has an hindex of 7, co-authored 17 publications receiving 288 citations.
Papers
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22 Mar 2015
TL;DR: The design and characterization of a 3-type heterogeneous 36-core, 3-mode fiber with record spatial channel count and density is described and transmission measurements in all 108 spatial channels using 40×100GHz spaced 25GBaud DP-QPSK signals are performed.
Abstract: We describe the design and characterization of a 3-type heterogeneous 36-core, 3-mode fiber with record spatial channel count and density and perform transmission measurements in all 108 spatial channels using 40×100GHz spaced 25GBaud DP-QPSK signals.
113 citations
TL;DR: A look beyond the capabilities of SDM as a means of boosting transmission capacity is taken and ideas and concepts on how to exploit the spatial dimension for improved efficiency and resource sharing in optical networks are discussed.
Abstract: Space division multiplexing (SDM) is mainly seen as a means to increase data throughput and handle exponential traffic growth in future optical networks. But its role is certainly more diverse. Research on SDM encourages device integration, brings newfunctionality to network elements, and helps optical networks to evolve. As a result, the number of individual components in future networks will decrease, which in turn will improve overall network reliability and reduce power consumption as well as operational expenditure. After reviewing the state-of-the-art in SDMfiber research and development with a particular focus on weakly coupled single-mode multi-core fibers, we take a look beyond the capabilities of SDM as a means of boosting transmission capacity and discuss ideas and concepts on howto exploit the spatial dimension for improved efficiency and resource sharing in optical networks.
74 citations
10 May 2015
TL;DR: In this paper, the dynamic skew fluctuations between cores in a multicore fiber were measured and it was shown that they are more than one order of magnitude smaller than those of parallel single core fibers over a 24-hour period.
Abstract: We measure the dynamic skew fluctuations between cores in a multicore fiber and show that they are more than one order of magnitude smaller than those of parallel single-core fibers over a 24 hour period
41 citations
16 Sep 2012
TL;DR: It is shown that self-homodyne detection, with pilot-tone transmitted on 1 MCF core, is compatible with SDM transmission systems but inter-core crosstalk can limit potential advantages.
Abstract: We investigate the performance of self-homodyne coherent system based on 19*SDM and 16*WDM channels. We show that self-homodyne detection, with pilot-tone transmitted on 1 MCF core, is compatible with SDM transmission systems but inter-core crosstalk can limit potential advantages.
22 citations
01 Jan 2013
TL;DR: In this paper, a new detection scheme for self-homodyne receivers using a polarization diversity receiver and a prototype pilot tone vector modulator is presented, which shows superior performance comparing with intradyne detection using MHz-linewidth lasers, low baud rate QPSK and 16QAM signals and demonstrate 0.9dB improvement in resilience to fiber nonlinearities.
Abstract: We report a new detection scheme for self-homodyne receivers using a polarization diversity receiver and a prototype pilot tone vector modulator. We show superior performance comparing with intradyne detection using MHz-linewidth lasers, low baud rate QPSK and 16QAM signals and demonstrate 0.9dB improvement in resilience to fiber nonlinearities.
15 citations
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TL;DR: Focusing on the optical transport and switching layer, aspects of large-scale spatial multiplexing, massive opto-electronic arrays and holistic optics-electronics-DSP integration, as well as optical node architectures for switching and multiplexed of spatial and spectral superchannels are covered.
Abstract: Celebrating the 20th anniversary of Optics Express, this paper reviews the evolution of optical fiber communication systems, and through a look at the previous 20 years attempts to extrapolate fiber-optic technology needs and potential solution paths over the coming 20 years. Well aware that 20-year extrapolations are inherently associated with great uncertainties, we still hope that taking a significantly longer-term view than most texts in this field will provide the reader with a broader perspective and will encourage the much needed out-of-the-box thinking to solve the very significant technology scaling problems ahead of us. Focusing on the optical transport and switching layer, we cover aspects of large-scale spatial multiplexing, massive opto-electronic arrays and holistic optics-electronics-DSP integration, as well as optical node architectures for switching and multiplexing of spatial and spectral superchannels.
498 citations
TL;DR: This paper discusses crosstalk estimation in multicore fibers (MCFs) using coupled-mode theory and coupled-power theory, and the combination of MCF and few-mode fiber (FMF), which is FM-MCF, is a very promising approach to realize space multiplicity over 50.
Abstract: Multicore fibers (MCFs) are expected as a good candidate for overcoming the capacity limit of a current optical communication system. This paper describes the recent progress on the MCFs for space-division multiplexing to be utilized in future large capacity long-distance transmission systems. Tradeoff issue between low crosstalk and high core density in MCFs is presented and prospect of large-space multiplicity of MCFs is discussed.
273 citations
TL;DR: Results show that SDM fibers achieve a 1185-fold (18-fold) spectral-spatial efficiency increase compared with the 276-SMF bundle (single-core fiber) currently installed on the ground.
Abstract: Single-mode fiber's physical capacity boundaries will soon be reached; hence, alternative solutions are much needed to overcome the multiplying and remarkably large bandwidth requests. Space division multiplexing (SDM) using multicore fibers (MCFs), multielement fibers, multimode fibers, and their combination; few-mode MCFs; or fibers based on orbital angular momentum are considered to be the propitious stepping-stones to overcome the capacity crunch of conventional single-core fibers. We critically review research progress on SDM fibers and network components, and we introduce two figures of merit aiming for quantitative evaluation of technologies such as amplifiers, fan-in/fan-out multiplexers, transmitters, switches, and SDM nodes. Results show that SDM fibers achieve a 1185-fold (18-fold) spectral–spatial efficiency increase compared with the 276-SMF bundle (single-core fiber) currently installed on the ground. In addition, an analysis of crosstalk in MCFs shows how SDM concepts can be further exploited to fit in various optical networks such as core, metro, and especially future intra-data center optical interconnects. Finally, research challenges and future directions are discussed.
272 citations
22 Mar 2015
TL;DR: Recent progress on the MCFs for space-division multiplexing to be utilized in future large capacity long-distance transmission systems are described and prospect of large-space multiplicity of MCFs is discussed.
Abstract: • Due to the limitation of the outer cladding size of MCFs related to their mechanical reliability, the number of cores as well as the core arrangement have to be carefully determined based on the required modulation format and transmission distance. • By introducing heterogeneous core arrangement, further decrement of core-to-core distance is possible with keeping lower crosstalk level compared with the homogeneous MCFs. • The combination of MCF and FMF, which is FM-MCF, is a very promising approach to realize space multiplicity over 50. • Further development on related devices such as Fan-in/Fan-out and amplifier for FM-MCF transmission is highly expected. • Investigation towards cost saving by using MCF transmission system is underway and further development on devise integration is expected for deploying MCFs in the real network.
137 citations
TL;DR: The proposal and demonstration of dense space-division multiplexing (DSDM), which offers the possibility of ultra-high capacity SDM transmission systems with high spatial density and spatial channel count of over 30 per fiber, is proposed and demonstrated.
Abstract: In this paper, we describe recent progress in space-division multiplexed (SDM) transmission, and our proposal and demonstration of dense space-division multiplexing (DSDM), which offers the possibility of ultra-high capacity SDM transmission systems with high spatial density and spatial channel count of over 30 per fiber. We introduce the SDM transmission matrix, which cross indexes the various types of multi-core multi-mode transmissions according to the type of light propagation in optical fibers and how the spatial channels are handled in the network. For each category in the matrix, we present the latest advances in transmission studies, and evaluate their transmission performance by spectral and spatial efficiencies. We also expound on technologies for multi-core and/or multi-mode transmission including optical fiber, signal processing, spatial multi/demultiplexer, and amplifier, which will play key roles in configuring DSDM transmission systems, and review the first DSDM transmission experiment over a 12 core × 3 mode fiber.
118 citations