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Proceedings Paper

Characterization of multi-mode fibers and devices for MIMO communications
Author(s): Nicolas K. Fontaine
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Paper Abstract

Space-division multiplexing (SDM) systems transmit over multiple spatial-paths to increase capacity or photon efficiency. In these links, coupling between the spatial paths scramble each input signal across all the output channels. This scrambling is described by a N × M frequency dependent transfer matrix which can be undone using multiple-input multiple-output processing. Using a swept-wavelength interferometer with spatial diversity, we can completely characterize the amplitude and phase transmission between each input and output across the entire C-band in a single 100-ms scan. Matrix eigenanalysis of the transfer matrix enables extraction of the system's insertion loss, mode-dependent loss, and the principle-states of polarization. Results will include transfer matrix measurements of few-mode fibers, coupled-core fibers, photonic lantern spatial-multiplexers, and SDM compatible wavelength routing components such as a wavelength selective switch.

Paper Details

Date Published: 1 February 2014
PDF: 8 pages
Proc. SPIE 9009, Next-Generation Optical Communication: Components, Sub-Systems, and Systems III, 90090A (1 February 2014); doi: 10.1117/12.2044339
Show Author Affiliations
Nicolas K. Fontaine, Alcatel-Lucent Bell Labs. (United States)

Published in SPIE Proceedings Vol. 9009:
Next-Generation Optical Communication: Components, Sub-Systems, and Systems III
Guifang Li, Editor(s)

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