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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 7 — Mar. 29, 2010
  • pp: 6537–6544

Passively mode-locked Tm,Ho:YAG laser at 2 µm based on saturable absorption of intersubband transitions in quantum wells

Kejian Yang, Hubertus Bromberger, Hartmut Ruf, Hanjo Schäfer, Joerg Neuhaus, Thomas Dekorsy, Christiana Villas-Boas Grimm, Manfred Helm, Klaus Biermann, and Harald Künzel  »View Author Affiliations


Optics Express, Vol. 18, Issue 7, pp. 6537-6544 (2010)
http://dx.doi.org/10.1364/OE.18.006537


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Abstract

We report the first demonstration of a solid state laser passively mode-locked through the saturable absorption of short-wavelength intersubband transitions in doped quantum wells: a continuous wave Ti:sapphire laser end-pumped Tm,Ho:YAG laser at the center wavelength of 2.091 μm utilizing intersubband transitions in narrow In0.53Ga0.47As/Al0.53As0.47Sb quantum wells. Stable passive mode-locking operation with maximum average output power of up to 160 mW for 2.9 W of the absorbed pump power could last for hours without external interruption and a mode-locked pulse with duration of 60 ps at repetition rate of 106.5 MHz was generated.

© 2010 OSA

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.4050) Lasers and laser optics : Mode-locked lasers
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(140.7090) Lasers and laser optics : Ultrafast lasers
(160.4330) Materials : Nonlinear optical materials
(160.6000) Materials : Semiconductor materials

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 15, 2010
Revised Manuscript: March 1, 2010
Manuscript Accepted: March 5, 2010
Published: March 15, 2010

Citation
Kejian Yang, Hubertus Bromberger, Hartmut Ruf, Hanjo Schäfer, Joerg Neuhaus, Thomas Dekorsy, Christiana Villas-Boas Grimm, Manfred Helm, Klaus Biermann, and Harald Künzel, "Passively mode-locked Tm,Ho:YAG laser at 2 µm based on saturable absorption of intersubband transitions in quantum wells," Opt. Express 18, 6537-6544 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-7-6537


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