Compressing µJ-level pulses from 250 fs to sub-10 fs at 38-MHz repetition rate using two gas-filled hollow-core photonic crystal fiber stages

K. F. Mak, M. Seidel, O. Pronin, M. H. Frosz, A. Abdolvand, V. Pervak, A. Apolonski, F. Krausz, J. C. Travers, Philip St. J. Russell

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Compression of 250-fs, 1-x3BC;J pulses from a KLM Yb:YAG thin-disk oscillator down to 9.1xA0;fs is demonstrated. A kagomxE9;-PCF with a 36-x3BC;m core-diameter is used with a pressure gradient from 0 to 40xA0;bar of krypton. Compression to 22xA0;fs is achieved by 1200x2009;x2009;fs2 group-delay-dispersion provided by chirped mirrors. By coupling the output into a second kagomxE9;-PCF with a pressure gradient from 0 to 25xA0;bar of argon, octave spanning spectral broadening via the soliton-effect is observed at 18-W average output power. Self-compression to 9.1xA0;fs is measured, with compressibility to 5xA0;fs predicted. Also observed is strong emission in the visible via dispersive wave generation, amounting to 4% of the total output power.
Original languageEnglish
Pages (from-to)1238-1241
Number of pages4
JournalOptics Letters
Volume40
Issue number7
DOIs
Publication statusPublished - 1 Apr 2015

Keywords

  • Pulse propagation and temporal solitons
  • Ultrafast nonlinear optics
  • Pulse compression
  • Photonic crystal fibers

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