Modal analysis of a large-mode area photonic crystal fiber amplifier using spectral-resolved imaging

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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We perform modal characterization on an ytterbium-doped large mode area photonic-crystal-fiber (PCF) amplifier using spatial and spectral (S 2) resolved imaging and compare results to conventional cutoff methods. We apply numerical simulations and step-index fiber experiments to calibrate our mathematical and experimental routines of our S2 imaging system. We systematically analyze higher-order-mode (HOM) content of a polarizing 40-m core double-clad PCF amplifier with various launching and coiling configurations. We demonstrate a HOM suppression of more than -24 dB with variance of 2.3 dB. © 2011 Society of Photo-Optical Instrumentation Engineers (SPIE).
Original languageEnglish
JournalOptical Engineering
Issue number11
Pages (from-to)111604
StatePublished - 2011

Bibliographical note

Copyright 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

CitationsWeb of Science® Times Cited: 4


  • Spectral resolved imaging, Photonic crystal fibers
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