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Optica Publishing Group
  • CLEO/Europe and EQEC 2011 Conference Digest
  • OSA Technical Digest (CD) (Optica Publishing Group, 2011),
  • paper CD_P12

Group-Acceleration Matching in Tapered Optical Fibers for Maximising the Power in the Blue-Edge of a Supercontinuum

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Abstract

Tapering has been demonstrated as an effective way of pushing the short-wavelength edge of a supercontinuum (SC) into the deep-blue [1-2]. The spectrum of an SC is comprised by a soliton red-edge linked to a dispersive wave (DW) blue-edge through group-velocity matching (GVM) [3]. The edges are formed when a red-shifting soliton catches up with a DW, allowing them to interact through cross-phase modulation (XPM). Tapering utilises this and allows GVM to shorter wavelength. So far the focus has been on moving the spectral edge, only little attention has been devoted to maximising the power in the blue-edge. Here we demonstrate by numerical simulations that the gradient of the taper has a major impact on the power actually available in the blue-edge.

© 2011 Optical Society of America

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