Optimum PCF tapers for blue-enhanced supercontinuum sources

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Tapering of photonic crystal fibers has proven to be an effective way of blueshifting the dispersive wavelength edge of a supercontinuum spectrum down in the deep-blue. In this article we will review the state-of-the-art in fiber tapers, and discuss the underlying mechanisms of supercontinuum generation in tapers. We show, by introducing the concept of a group-acceleration mismatch, that for a given taper length, the downtapering section should be as long as possible to enhance the amount of blueshifted light. We also discuss the noise properties of supercontinuum generation in uniform and tapered fibers, and we demonstrate that the intensity noise at the spectral edges of the generated supercontinuum is at a constant level independent on the pump power in both tapered and uniform fibers.
Original languageEnglish
JournalOptical Fiber Technology
Publication date2012
Volume18
Issue5
Pages304–314
ISSN1068-5200
DOIs
StatePublished

Bibliographical note

Invited paper.

CitationsWeb of Science® Times Cited: 13

Keywords

  • Supercontinuum generation, Photonic crystal fibers, Nonlinear fiber optics, Relative intensity noise, Tapered fibers, Group-acceleration mismatch
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