Journal
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
Volume 32, Issue 1, Pages 143-149Publisher
OPTICAL SOC AMER
DOI: 10.1364/JOSAB.32.000143
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Funding
- Army Research Office [47221-00-01, 52759-PH-H]
- National Science Foundation [40017-00-04]
- Corning Incorporated
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Mode dispersion can negatively impact optical fiber communication over multimode optical fibers (MMFs). Principal modes are a basis of spatial modes that do not experience mode dispersion up to the first order in frequency. In this work, a method to determine the principle modes of a MMF is proposed. This method is referred to as the mode dependent signal delay method, being the extension to a MMF of the analogous method to determine the principal states of polarization of a single-mode optical fiber. Using this method, principal modes can be determined by measuring N-2 - 1 mean signal time delays at a MMF input for N-2 - 1 launch conditions generated at a MMF output. The differences of the mode dependent signal delay method from the polarization signal delay method and its experimental implementation are discussed. (C) 2014 Optical Society of America
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