4.6 Article

Single-walled carbon nanotube saturable absorber assisted high-power mode-locking of a Ti:sapphire laser

Journal

OPTICS EXPRESS
Volume 19, Issue 8, Pages 7833-7838

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OE.19.007833

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Funding

  1. Korean Government (MEST) [2010-0018855, 2011-0001054, 220-2010-1-C00013]
  2. National Research Foundation of Korea [2007-0057035, 220-2010-1-C00013, 과C6A2404, 2008-0062256] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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We report on passive mode-locking of a Ti:sapphire laser employing a single-walled carbon nanotube saturable absorber (SWCNT-SA) specially designed and fabricated for wavelengths near 800 nm. Mode-locked pulses as short as 62 fs were generated at a repetition rate of 99.4 MHz. We achieved output powers from the SWCNT-SA mode-locked laser as high as 600 mW with a slope efficiency of 26%. The characteristics of SWCNT-SA-assisted mode-locking were compared with those of Kerr-lens mode-locking without SWCNT-SA. (C) 2011 Optical Society of America

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