4×10 Gbit/s bidirectional transmission over 2 km of conventional graded-index OM1 multimode fiber using mode group division multiplexing

Lenglé, Kevin; Insou, Xavier; Jian, Pu; Barré, Nicolas; Denolle, Bertrand; Bramerie, Laurent; Labroille, Guillaume

doi:10.1364/oe.24.028594

Cited by 33 publications

(8 citation statements)

References 12 publications

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“…The transmission of the 5th order mode group is also maintained but with more losses. This demonstrate the possibility to confine and propagate the lowest 4 mode groups even with strong fiber bending, validating that 4 mode group MGDM as demonstrated in [27] can be implemented in a realistic fiber deployment scheme.…”

Section: Exploring Fiber Properties With High Order Modes Multiplexersupporting

confidence: 66%

Fabrication and Characterization of a Mode-selective 45-Mode Spatial Multiplexer based on Multi-Plane Light Conversion

Bade

Denolle

Trunet

et al. 2018

Optical Fiber Communication Conference Postdeadline Papers

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Space Division Multiplexing (SMD) is a very attractive technique for addressing the ever-growing demands in transmission capacity by enabling the use of a new parameter -space -to increase the number of channels in multi-mode fibers. One key component to build a spatially multiplexed-based optical network is a spatial multiplexer and demultiplexer combining signals from multiple single-mode fibers into as many channels in a multi-mode fiber. In this article, we report the fabrication and characterization of a pair of 45-mode spatial multiplexer and demultiplexer saturating all the modes of a standard 50 µm core graded-index (OM2) multi-mode fiber. The multiplexers are based on Multi-Plane Light Conversion (MPLC), a technique that enables the control of the transverse shape of the light by multiple reflections on specifically designed phase plates. We show that by using a separable variable basis of modes, such as Hermite-Gaussian (HG) modes, we are able to drastically reduce the number of reflections hence reducing the insertion losses and modal crosstalks. The multiplexers typically show an average 4 dB insertion loss and -28 dB cross-talk across the C band. Finally, we emphasize the use of this higher-order modes multiplexer to explore the propagation properties inside multi-mode fibers and more specifically the mode group crosstalks as well as the impact of fiber bending.

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Section: Exploring Fiber Properties With High Order Modes Multiplexersupporting

confidence: 66%

Fabrication and Characterization of a Mode-selective 45-Mode Spatial Multiplexer based on Multi-Plane Light Conversion

Bade

Denolle

Trunet

et al. 2018

Optical Fiber Communication Conference Postdeadline Papers

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“…Like wavelength-division multiplexing (WDM) technique, multiple mode channels in few-mode fiber (FMF) or multimode fiber (MMF) can significantly increase the transmission capacity of a single fiber [3]. In short-reach optical interconnections, the MMF have been widely-deployed and MDM transmission approaches over MMF have been widely investigated [4,5]. The application of MDM technique breaks the transmission capacity of MMF limited by modal dispersion [6].…”

Section: Introductionmentioning

confidence: 99%

“…For instance, a modeselective photonic lantern is utilized to demultiplex signals in the same mode-group into multiple fundamental modes in SMFs, respectively, and the optical powers belonging to a same mode group are combined by another photonic lantern for simultaneous detection [11]. Multi-plane light conversion (MPLC) has also been proposed for mode-group demultiplexing by converting each higher-order degenerate modes to different lower-order modes of a single MMF pigtail [1,5]. While the number of input fibers of photonic lanterns or phase masks of MPLC will increase dramatically with the increase of the number of mode groups especially for high-order mode groups, which results in them can only support no more than 4 mode groups so far.…”

Section: Introductionmentioning

confidence: 99%

Scalable low-modal-crosstalk mode-group demultiplexer for MDM transmission over MMF

Cui,

Deng,

Liu

et al. 2024

International Academic Conference on Optics and Photonics (IACOP 2023)

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Weakly-coupled mode-division multiplexing (MDM) transmission technique over widely-deployed multimode fiber (MMF) is considered a promising approach to enhance the capacity of optical fiber communication systems. In order to be compatible with cost-efficient intensity-modulation/direct-detection (IM/DD) systems, effective mode-group demultiplexing approaches to simultaneously receive each mode group of MMF are highly desired. In this paper, we propose a scalable low-modal-crosstalk mode-group demultiplexer over MMF using multi-plane light conversion (MPLC), in which input Hermite-Gaussian (HG) modes of MMF are first converted to bridging modes that composed of HG 00 modes distributed as a right-angled triangle in Cartesian coordinates, and then each HG 00 mode belonging to the same mode group are respectively converted to different HG n0 modes at the same output for simultaneous detection. With the help of bridging modes, the MPLC-based mode-group demultiplexer can scale to demultiplex more mode groups with relatively few phase masks. A 5 mode-group demultiplexer is also design for demonstration, and simulation results show that the modal-crosstalk are lower than -22.26 dB for all mode groups.

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“…The majority of these optical communications is via single-mode optical fibers, however higher data-rates can be transmitted by using multimode fibers [1]. To respond to this demand for data, multimode fiber systems have been studied [2,3]. One proposed method to transmit higher data-rates is to use different orbital angular momentum (OAM) modes, multiplexed into channels in this basis [4,5].…”

Section: Introductionmentioning

confidence: 99%

Measurement of the spin-orbit coupling interaction in ring-core optical fibers

Johnson

Padgett

et al. 2019

OSA Continuum

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Ring-core optical fibers have been designed to carry orbital angular momentum modes. We demonstrate the imaging of these modes, individually identifying modes separated temporally by only 30 ps. A single-pixel camera operating in the short-wave infrared detection range is used to image the 1550 nm wavelength optical modes. With this technique, examination of these optical modes can be performed with significantly higher temporal resolution than is possible with conventional imaging systems, such that the imaging of modes separated by spin-orbit coupling is achieved and evaluated. Deconvolution is required to separate the instrument response from the optical mode signal, increasing the clarity and temporal resolution of the measurement system.

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4×10 Gbit/s bidirectional transmission over 2 km of conventional graded-index OM1 multimode fiber using mode group division multiplexing

Cited by 33 publications

References 12 publications

Fabrication and Characterization of a Mode-selective 45-Mode Spatial Multiplexer based on Multi-Plane Light Conversion

Fabrication and Characterization of a Mode-selective 45-Mode Spatial Multiplexer based on Multi-Plane Light Conversion

Scalable low-modal-crosstalk mode-group demultiplexer for MDM transmission over MMF

Measurement of the spin-orbit coupling interaction in ring-core optical fibers

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