Design, construction and characterisation of a diode-pumped, three-element, 1-GHz Kerr-lens-modelocked Ti:sapphire oscillator

Hanna Ostapenko*, Toby Mitchell, Pablo Castro-Marin, Derryck T. Reid

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
59 Downloads (Pure)

Abstract

We present a design and construction prescription for a 1-GHz repetition rate Ti:sapphire laser pumped with a single green pump diode and with a resonator comprising as few as three optical elements. In a three-element configuration, the laser produces 111-fs pulses and exhibits self-starting Kerr-lens modelocking at pump powers above 850 mW. At 1.1 W of pump power, the average output of the laser is over 116 mW, and the slope efficiency is measured to be 13%. With the addition of a fourth dispersion-compensating element to optimise the second-order group-delay intracavity dispersion, we have demonstrated a reduction of the pulse durations to 87 fs with an average power of 108 mW.

Original languageEnglish
Article number33
JournalApplied Physics B: Lasers and Optics
Volume129
Issue number2
Early online date30 Jan 2023
DOIs
Publication statusPublished - Feb 2023

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • General Physics and Astronomy

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