Investigation of a diode-pumped Ti:sapphire laser modelocked using carbon nanotubes

Toby Mitchell, Pablo Castro-Marin*, Jinghua Sun, Derryck T. Reid

*Corresponding author for this work

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We report a diode-pumped femtosecond Ti:sapphire laser in which a suspension of single-walled carbon nanotubes spin-coated onto a cavity mirror is the saturable absorber element. Laser performance is presented for single-diode pumping at 462 nm with 51-fs pulses being achieved with an output power of 27 mW. The laser exhibits stable operation with a relative intensity noise of 0.26% and a pulse repetition frequency of 79.24 MHz. Measurements reporting saturable and non-saturable losses each of ∼0.1% illustrate that this saturable absorber element is particularly appropriate for use in a low gain system such as a diode-pumped Ti:sapphire laser.

Original languageEnglish
Pages (from-to)2108-2117
Number of pages10
JournalOSA Continuum
Issue number8
Early online date18 Jul 2021
Publication statusPublished - 15 Aug 2021

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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