Six mode selective fiber optic spatial multiplexer

Velázquez-Benítez, A. M.; Alvarado, Juan Carlos; López-Galmiche, Gisela; Antonio-López, Jose Enrique; Hernández‐Cordero, Juan; Sánchez-Mondragón, J.; Sillard, Pierre; Okonkwo, Chigo; Amezcua‐Correa, Rodrigo

doi:10.1364/ol.40.001663

Cited by 144 publications

(50 citation statements)

References 16 publications

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“…To address the spatial mode channels, a mode multiplexer (MMUX) is required. To date, various techniques such as phase plates [5], 3-dimensional waveguides [6,13,14] and allfiber photonic lanterns (PL) have been demonstrated [15][16][17][18][19][20]. Advantages of the latter are low loss, low MDL and high temporal stability.…”

Section: Low Loss All Fiber Photonic Lanternsmentioning

confidence: 99%

10 Spatial mode transmission using low differential mode delay 6-LP fiber using all-fiber photonic lanterns

Weerdenburg¹,

Velázquez-Benítez²,

Uden³

et al. 2015

Opt. Express

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To unlock the cost benefits of space division multiplexing transmission systems, higher spatial multiplicity is required. Here, we investigate a potential route to increasing the number of spatial mode channels within a single core few-mode fiber. Key for longer transmission distances and low computational complexity is the fabrication of fibers with low differential mode group delays. As such in this work, we combine wavelength and mode-division multiplexed transmission over a 4.45 km low-DMGD 6-LP-mode fiber by employing low-loss all-fiber 10-port photonic lanterns to couple light in and out of the fiber. Hence, a minimum DMGD of 0.2 ns (maximum 0.357 ns) is measured after 4.45 km. Instrumental to the multi-mode transmission system is the employed time-domain-SDM receiver, allowing 10 spatial mode channels (over both polarizations) to be captured using only 3 coherent receivers and real-time oscilloscopes in comparison with 10 for conventional methods. The spatial channels were unraveled using 20 × 20 multiple-input multiple-output digital signal processing. By employing a novel round-robin encoding technique, stable performance over a long measurement period demonstrates the feasibility of 10x increase in single-core multi-mode transmission.

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Section: Low Loss All Fiber Photonic Lanternsmentioning

confidence: 99%

10 Spatial mode transmission using low differential mode delay 6-LP fiber using all-fiber photonic lanterns

Weerdenburg¹,

Velázquez-Benítez²,

Uden³

et al. 2015

Opt. Express

View full text Add to dashboard Cite

show abstract

“…Mode converters that convert several separate channels into the mode of few-mode fibers are essential components [19][20][21]. Bandwidth, dependent loss, and extinction ratio are important properties for mode-division systems.…”

Section: Introductionmentioning

confidence: 99%

Ultra-Wide-Bandwidth Tunable Magnetic Fluid-Filled Hybrid Connected Dual-Core Photonic Crystal Fiber Mode Converter

Sun

2018

Crystals

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Abstract:We propose a tunable magnetic fluid-filled hybrid photonic crystal fiber mode converter. Innovative design principles based on the hybrid connected dual-core photonic crystal fiber and magnetically modulated optical properties of magnetic fluid are developed and numerically verified. The mode converter was designed to convert LP 11 in the index-guiding core to the LP 01 mode in the photonic bandgap-guiding core. By introducing the magnetic fluid into the air-hole located at the center of the photonic bandgap-guiding core, the mode converter can realize a high coupling efficiency and an ultra-wide bandwidth. The coupling efficiency can reach up to 99.9%. At a fixed fiber length, by adjusting the strength of the magnetic field, the coupling efficiency can reach up to 90% and 95% at wavelengths in the ranges of 1.33 µm-1.85 µm and 1.38 µm-1.75 µm, with bandwidth values reaching 0.52 µm and 0.37 µm, respectively. Moreover, it has a good manufacturing flexibility. The mode converter can be used to implement wideband mode-division multiplexing of few-mode optical fiber for high-capacity telecommunications.

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“…However, such two parameters are challenging to quantitatively characterize through experiment, due to the limitation of precisely selective mode excitation. As the development of mode division multiplexers, all-fiber photonic lantern (PL) [28,29] makes the measurement of RB arising in the FMF much easier, if we can get the power transfer matrix of PL and successfully suppress the Fresnel reflection from the facet.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Rayleigh backscattering arising in various two-mode fibers

Yu¹,

Fu²,

Cao³

et al. 2016

Opt. Express

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Abstract:We experimentally characterize the mode dependent characteristics of Rayleigh backscattering (RB) arising in various two-mode fibers (TMFs). With the help of an all-fiber photonic lantern, we are able to measure the RB power at individual modes. Consequently, mode dependent power distribution of RB light caused by arbitrary forward propagation mode superposition can be obtained. The total RB power of the TMFs under test is higher than that of single mode fiber by at least 2 dB over the C band. Meanwhile, the RB light occurs among all guided modes in the TMFs with specific power ratios. The experimental characterization agrees well with the theoretical calculations.

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Six mode selective fiber optic spatial multiplexer

Cited by 144 publications

References 16 publications

10 Spatial mode transmission using low differential mode delay 6-LP fiber using all-fiber photonic lanterns

10 Spatial mode transmission using low differential mode delay 6-LP fiber using all-fiber photonic lanterns

Ultra-Wide-Bandwidth Tunable Magnetic Fluid-Filled Hybrid Connected Dual-Core Photonic Crystal Fiber Mode Converter

Characterization of Rayleigh backscattering arising in various two-mode fibers

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