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Optica Publishing Group
  • Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing
  • OSA Technical Digest (Optica Publishing Group, 2004),
  • paper DSuA5
  • https://doi.org/10.1364/DOMO.2004.DSuA5

Selective coupling to higher order modes dual mode step index fiber

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Abstract

The use of a vortex phase optic as a coupling element for a dual mode step index fiber system is presented. We introduce a novel but rather simple coupling scheme for selectively exciting the LP11 mode in a step index fiber that is a single mode at a longer wavelength. This scheme can be utilized to optically pump fiber lasers and amplifiers.

© 2004 Optical Society of America

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