Asymmetry Core Effects in Multimode Fibers for Space-Division Multiplexing

2021 ◽  
Author(s):  
Shuo Chen ◽  
Yuanyuan Liu ◽  
Zhen Jin ◽  
Huiping Tian
Keyword(s):  
Multimode Fibers ◽  
Space Division Multiplexing ◽  
Space Division

scholarly journals Space division multiplexing in standard multi-mode optical fibers based on speckle pattern classification

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jaël Pauwels ◽  
Guy Van der Sande ◽  
Guy Verschaffelt
Keyword(s):  
Optical Fibers ◽  
Speckle Pattern ◽  
Single Mode ◽  
Optical Signal ◽  
Optical Signals ◽  
Multimode Fibers ◽  
Space Division Multiplexing ◽  
Space Division ◽  
Speckle Patterns

AbstractIn optical communications the transmission bandwidth of single mode optical fibers is almost fully exploited. To further increase the capacity of a telecommunication link, multiplexing techniques can be applied across 5 physical dimensions: amplitude, quadrature, polarization, frequency and space, with all but the latter being nearly exhausted. We experimentally demonstrate the feasibility of an original space division multiplexing technique based on the classification of speckle patterns measured at the fiber’s output. By coupling multiple optical signals into a standard multimode optical fiber, speckle patterns arise at the fiber’s end facet. This is due to quasi-random interference between the excited modes of propagation. We show how these patterns depend on the parameters of the optical signal beams and the fiber length. Classification of the speckle patterns allows the detection of the independent signals: we can detect the state (i.e. on or off  ) of different beams that are multiplexed in the fiber. Our results show that the proposed space division multiplexing on standard multimode fibers is robust to mode-mixing and polarization scrambling effects.

scholarly journals Peta-bit-per-second optical communications system using a standard cladding diameter 15-mode fiber

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Georg Rademacher ◽  
Benjamin J. Puttnam ◽  
Ruben S. Luís ◽  
Tobias A. Eriksson ◽  
Nicolas K. Fontaine ◽  
...  
Keyword(s):  
Wavelength Division Multiplexing ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Capacity Limits ◽  
Wavelength Division ◽  
Core Networks ◽  
Space Division Multiplexing ◽  
Space Division ◽  
Data Rates ◽  
Multi Mode

AbstractData rates in optical fiber networks have increased exponentially over the past decades and core-networks are expected to operate in the peta-bit-per-second regime by 2030. As current single-mode fiber-based transmission systems are reaching their capacity limits, space-division multiplexing has been investigated as a means to increase the per-fiber capacity. Of all space-division multiplexing fibers proposed to date, multi-mode fibers have the highest spatial channel density, as signals traveling in orthogonal fiber modes share the same fiber-core. By combining a high mode-count multi-mode fiber with wideband wavelength-division multiplexing, we report a peta-bit-per-second class transmission demonstration in multi-mode fibers. This was enabled by combining three key technologies: a wideband optical comb-based transmitter to generate highly spectral efficient 64-quadrature-amplitude modulated signals between 1528 nm and 1610 nm wavelength, a broadband mode-multiplexer, based on multi-plane light conversion, and a 15-mode multi-mode fiber with optimized transmission characteristics for wideband operation.

Multicore EDFA for space division multiplexing

2013 ◽  
Author(s):  
Yukihiro Tsuchida ◽  
Masateru Tadakuma ◽  
Ryuichi Sugizaki ◽  
Takeshi Yagi
Keyword(s):  
Space Division Multiplexing ◽  
Space Division

Design of compact multi-ring-core few-mode fiber for dense space-division multiplexing in C+L band

2021 ◽  
Author(s):  
Zhuo Wang ◽  
Jiajing Tu ◽  
Zhaohui Li ◽  
Changyuan Yu ◽  
Chao Lu
Keyword(s):  
Space Division Multiplexing ◽  
Space Division ◽  
L Band ◽  
Ring Core
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