Device design and signal processing for multiple-input multiple-output multimode fiber links

Kumar Appaiah; Sriram Vishwanath; Seth R. Bank

doi:10.1117/12.913882

2 February 2012 Device design and signal processing for multiple-input multiple-output multimode fiber links

Kumar Appaiah, Sriram Vishwanath, Seth R. Bank

Proceedings Volume 8267, Optoelectronic Interconnects XII; 826715 (2012) https://doi.org/10.1117/12.913882
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

Multimode fibers (MMFs) are limited in data rate capabilities owing to modal dispersion. However, their large core diameter simplifies alignment and packaging, and makes them attractive for short and medium length links. Recent research has shown that the use of signal processing and techniques such as multiple-input multiple-output (MIMO) can greatly improve the data rate capabilities of multimode fibers. In this paper, we review recent experimental work using MIMO and signal processing for multimode fibers, and the improvements in data rates achievable with these techniques. We then present models to design as well as simulate the performance benefits obtainable with arrays of lasers and detectors in conjunction with MIMO, using channel capacity as the metric to optimize. We also discuss some aspects related to complexity of the algorithms needed for signal processing and discuss techniques for low complexity implementation.

Citation Download Citation

Kumar Appaiah, Sriram Vishwanath, and Seth R. Bank "Device design and signal processing for multiple-input multiple-output multimode fiber links", Proc. SPIE 8267, Optoelectronic Interconnects XII, 826715 (2 February 2012); https://doi.org/10.1117/12.913882

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