A higher-order-mode fiber delivery for Ti:Sapphire femtosecond lasers

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  • Kim Giessmann Jespersen
  • ,
  • Tuan Le
  • ,
  • Lars Erik Grüner-Nielsen
  • ,
  • Dan Jakobsen
  • ,
  • Martin E V Pederesen
  • ,
  • Mikkel B Smedemand
  • ,
  • Søren R Keiding
  • Bera Palsdottir
  • Department of Chemistry
  • Interdisciplinary Nanoscience Center
We report the first higher-order-mode fiber with anomalous dispersion at 800nm and demonstrate its potential in femtosecond pulse delivery for Ti:Sapphire femtosecond lasers. We obtain 125fs pulses after propagating a distance of 3.6 meters in solid-silica fiber. The pulses could be further compressed in a quartz rod to nearly chirp-free 110fs pulses. Femtosecond pulse delivery is achieved by launching the laser output directly into the delivery fiber without any pre-chirping of the input pulse. The demonstrated pulse delivery scheme suggests scaling to >20meters for pulse delivery in harsh environments not suited for oscillator operation or in applications that require long distance flexibility.
Original languageEnglish
JournalOptics Express
Pages (from-to)7798-7806
Number of pages9
Publication statusPublished - 12 Apr 2010

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