MIMO capacities and outage probabilities in spatially multiplexed optical transport systems.

By Peter J. Winzer, Gerard J. Foschini. Optics Express, 2011

399 citations recorded by the source corpus.

With wavelength-division multiplexing (WDM) rapidly nearing its scalability limits, space-division multiplexing (SDM) seems the only option to further scale the capacity of optical transport networks. In order for SDM systems to continue the WDM trend of reducing energy and cost per bit with system capacity, integration will be key to SDM. Since integration is likely to introduce non-negligible crosstalk between multiple parallel transmission paths, multiple-input multiple output (MIMO) signal processing techniques will have to be used. In this paper, we discuss MIMO capacities in optical SDM systems, including related outage considerations which are an important part in the design of such systems. In order to achieve the low-outage standards required for optical transport networks, SDM transponders should be capable of individually addressing, and preferably MIMO processing all modes supported by the optical SDM waveguide. We then discuss the effect of distributed optical noise in MIMO SDM systems and focus on the impact of mode-dependent loss (MDL) on system capacity and system outage. Through extensive numerical simulations, we extract scaling rules for mode-average and mode-dependent loss and show that MIMO SDM systems composed of up to 128 segments and supporting up to 128 modes can tolerate up to 1 dB of per-segment MDL at 90% of the system's full capacity at an outage probability of 10(-4).

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/2ec56d4b92f01b5f0534895d4e35bd688f984cf8

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Citations in the corpus

Modes and states in quantum optics (2019, methodology): “. If one restricts oneself to recent developments in optics and electromagnetism (Fan and Kahn, 2005), one can mention the MIMO technique (Multiple In Multiple Out) in telecommunication technologies (Winzer and Foschini, 2011) and the control of light propagation in complex media for optical computa”
Capacity Trends and Limits of Optical Communication Networks (2012, background): “The first category involves mode-dependent loss (MDL), and it includes polarizationdependent loss (PDL) [177]–[182] and spatial MDL [183]–[186].”
Mode-Division Multiplexing Over 96 km of Few-Mode Fiber Using Coherent 6 $\,\times\,$6 MIMO Processing (2012, background): “In order to achieve the maximal SDM capacity gain, the complete set of modes supported by the six-mode FMF fiber has to be excited without significant crosstalk [13].”
Optical communications using orbital angular momentum beams (2015, background): “For example, most of the power of the transmitted OAMbeamsmay be transferred to other OAM states under strong turbulence without being detected, in which case MIMO would not help to improve system performance [77].”
Effect of Mode Coupling on Signal Processing Complexity in Mode-Division Multiplexing (2013, background): “In MDM, system capacity ideally scales in proportion to the number of modes employed [3], [4].”
Space-division multiplexing: the next frontier in optical communication (2014, background): “where S0 is the total signal power in all mode channels and N0 is noise power per mode channel [196].”
Ultrafast-laser-inscribed 3D integrated photonics: challenges and emerging applications (2015, background): “Low insertion losses increase the transmission span length without the need for optical amplification, low mode-dependent losses maximise the transmission capacity [149] and mode selectivity reduces the electronic single processing complexity [150].”
Adaptive-optics-based simultaneous pre- and post-turbulence compensation of multiple orbital-angular-momentum beams in a bidirectional free-space optical link (2014, methodology): “Here, an multiple-input–multiple-output equalization algorithm, that could help mitigate the channel crosstalk [31,32], is not used in the off-line DSP.”
Linear Propagation Effects in Mode-Division Multiplexing Systems (2014, methodology): “MDL and its impact on channel capacity were studied in [13], [21], [24], [28], [92].”