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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 13 — Jun. 22, 2009
  • pp: 11007–11012

Passive mode-locking of a Tm-doped bulk laser near 2 µm using a carbon nanotube saturable absorber

Won Bae Cho, Andreas Schmidt, Jong Hyuk Yim, Sun Young Choi, Soonil Lee, Fabian Rotermund, Uwe Griebner, Günter Steinmeyer, Valentin Petrov, Xavier Mateos, Maria C. Pujol, Joan J. Carvajal, Magdalena Aguiló, and Francesc Díaz  »View Author Affiliations

Optics Express, Vol. 17, Issue 13, pp. 11007-11012 (2009)

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Stable and self-starting mode-locking of a Tm:KLu(WO4)2 crystal laser is demonstrated using a transmission-type single-walled carbon nanotube (SWCNT) based saturable absorber (SA). These experiments in the 2 µm regime utilize the E11 transition of the SWCNTs for nonlinear saturable absorption. The recovery time of the SWCNT-SA is measured by pump-probe measurements as ~1.2 ps. The mode-locked laser delivers ~10-ps pulses near 1.95 µm with a maximum output power of up to 240 mW at 126 MHz repetition rate.

© 2009 Optical Society of America

OCIS Codes
(140.4050) Lasers and laser optics : Mode-locked lasers
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(160.4330) Materials : Nonlinear optical materials
(160.4236) Materials : Nanomaterials

ToC Category:
Lasers and Laser Optics

Original Manuscript: April 23, 2009
Revised Manuscript: June 13, 2009
Manuscript Accepted: June 13, 2009
Published: June 17, 2009

Won Bae Cho, Andreas Schmidt, Jong Hyuk Yim, Sun Young Choi, Soonil Lee, Fabian Rotermund, Uwe Griebner, Günter Steinmeyer, Valentin Petrov, Xavier Mateos, Maria C. Pujol, Joan J. Carvajal, Magdalena Aguiló, and Francesc Díaz, "Passive mode-locking of a Tm-doped bulk laser near 2 μm using a carbon nanotube saturable absorber," Opt. Express 17, 11007-11012 (2009)

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