Reception of Mode and Polarization Multiplexed 107-Gb/s CO-OFDM Signal over a Two-Mode Fiber

Liu, An; Amin, Abdullah Al; Chen, Xi; Shieh, William

doi:10.1364/ofc.2011.pdpb8

Cited by 52 publications

(35 citation statements)

References 9 publications

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“…In Fig. 3(a), two examples of possible mode scramblers are depicted: fiber grating [7] and serpentine bends [16]. The former applies pressure on the fiber, which has to be optimized together with the angle from which the pressure is applied.…”

Section: Mitigation and Discussionmentioning

confidence: 99%

“…The latter employs bends through cylindrical structures, whose quantity, separation and radius have to be optimized. In these simulations, the mode scrambler was modeled as a 12-cm FMF fiber (fiber length used in [16]), where mode coupling is introduced every 500 μm (resembles the nominal grating pitch in [7]). The mode scramblers were placed as indicated in the inset FMF channel (b) in Fig.…”

Section: Mitigation and Discussionmentioning

confidence: 99%

“…Mode-division multiplexed (MDM) systems using few-mode fibers (FMFs) are considered appealing candidates for this purpose, which is demonstrated by current reported experimental work on the topic [1][2][3][4][5][6][7][8]. FMF-based systems have the potential of low system costs through their higher amplifier pumping efficiency, prospect of integrated transponders and reconfigurable optical add/drop multiplexers compared to multi-core fiber and fiber bundles [8,9].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

On the mode-dependent loss compensation for mode-division multiplexed systems

Lobato

Ferreira

Rabe

et al. 2013

2013 15th International Conference on Transparent Optical Networks (ICTON)

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Mode-division multiplexing has emerged as an imminent step to increase the capacity of long-haul transmission systems and avoid the so-called "capacity crunch". One way to realize such systems is by means of few-mode fibers (FMFs). One of the challenges that has to be addressed in order to implement FMF-based commercial systems is the mitigation of mode-dependent loss (MDL). All kinds of inline optical devices can attenuate or amplify the modes differently, leading to different performance among the modes. This paper presents simulations, which study the system MDL tolerance under the influence of mode coupling and possible methods to improve the performance of MDL-impaired systems. We find that the combination of strong mode coupling and advanced detection schemes, such as maximum-likelihood (ML) detection can improve the system performance in the presence of MDL. However, the effectiveness of ML detection has to be traded off with its larger computational complexity compared to linear equalization such as minimum mean square error equalization.

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Section: Mitigation and Discussionmentioning

confidence: 99%

Section: Mitigation and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

On the mode-dependent loss compensation for mode-division multiplexed systems

Lobato

Ferreira

Rabe

et al. 2013

2013 15th International Conference on Transparent Optical Networks (ICTON)

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“…This concept of LP 01 /LP 11 dual-mode transmission is demonstrated with a 2 × 10 Gbit/s on -off keying optical signal using an LP 01 -LP 11 mode coupler in [5], but in a single polarisation and at 1080 nm wavelength. We have recently demonstrated the feasibility of standard C-band, dual-polarisation, LP 01 /LP 11 dual-mode transmission by a coherent optical orthogonal frequency-division multiplexing (CO-OFDM) signal, using a grating-based LP 01 -LP 11 mode converter at the mode-selective element [6]. In this Letter, we evaluate the potential for broadband transmission in the proposed scheme.…”

mentioning

confidence: 99%

“…LP 01 -LP 11 mode conversion and experimental method: Details of the TMF used in this experiment are given in [6]. As shown in the experimental setup of Fig.…”

mentioning

confidence: 99%

LP01/LP11 dual-mode and dual-polarisation CO-OFDM transmission on two-mode fibre

Amin

Chen

et al. 2011

Electron. Lett.

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Reported are the transmission characteristics of a dual-mode and dualpolarisation coherent optical orthogonal frequency-division multiplexed (CO-OFDM) system where a simple grating-based LP 01 -LP 11 mode converter is used for mode selective detection. Compared to the LP 01 mode component, the LP 11 mode shows a penalty of 2 and 3.8 dB for the two polarisations after 4.5 km of two-mode fibre at 36 Gbit/s. Potential for broadband operation is also confirmed.Introduction: The capacity limitation of the singlemode fibre (SMF) due to fibre nonlinearity [1] has created interest in new fibre designs with multiple cores or spatial modes. Spatial mode diversity in multimode or few-mode fibre (MMF/FMF) can multiply the absolute spectral efficiency (SE) and enhance data rate [2]. Proof-of-principle demonstrations have been reported in MMF [3], but MMF has the disadvantage of having difficulty to selectively couple to a fibre mode, causing adverse effects from modal dispersion. Compared to MMF, FMF such as two-mode fibre (TMF) has the advantage of easier mode selective coupling of SMF components to any of the orthogonal propagation modes [4 -6]. Mode mixing among the LP 01 and two orthogonal LP 11 modes in TMF is shown to be reversible by complex channel equalising filters in [4]. However, a TMF design with sufficient modal dispersion prevents inter-modal mixing [7], enabling independent transmission paths over the LP 01 and LP 11 modes. This concept of LP 01 /LP 11 dual-mode transmission is demonstrated with a 2 × 10 Gbit/s on -off keying optical signal using an LP 01 -LP 11 mode coupler in [5], but in a single polarisation and at 1080 nm wavelength. We have recently demonstrated the feasibility of standard C-band, dual-polarisation, LP 01 /LP 11 dual-mode transmission by a coherent optical orthogonal frequency-division multiplexing (CO-OFDM) signal, using a grating-based LP 01 -LP 11 mode converter at the mode-selective element [6]. In this Letter, we evaluate the potential for broadband transmission in the proposed scheme. We also report the measured OSNR sensitivities for both LP 01 and LP 11 modes and both polarisations.

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Space‐Division Multiplexing and MIMO Processing

Ryf

Fontaine

2016

Enabling Technologies for High Spectral‐Efficiency Coherent Optical Communication Networks

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Reception of Mode and Polarization Multiplexed 107-Gb/s CO-OFDM Signal over a Two-Mode Fiber

Cited by 52 publications

References 9 publications

On the mode-dependent loss compensation for mode-division multiplexed systems

On the mode-dependent loss compensation for mode-division multiplexed systems

LP01/LP11 dual-mode and dual-polarisation CO-OFDM transmission on two-mode fibre

Space‐Division Multiplexing and MIMO Processing

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