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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 5 — Mar. 10, 2014
  • pp: 5564–5571

Graphene mode-locked Cr:ZnS laser with 41 fs pulse duration

Nikolai Tolstik, Evgeni Sorokin, and Irina T. Sorokina  »View Author Affiliations

Optics Express, Vol. 22, Issue 5, pp. 5564-5571 (2014)

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We report the ultrashort-pulse Cr:ZnS laser mode-locked by graphene-based saturable absorber mirror. Using the combination of bulk material and a chirped mirror, we demonstrate the shortest reported so far mid-IR pulses of only 5.1 optical cycles (41 fs) centered at 2.4 µm with 190 nm spectral bandwidth. The pulse spectrum almost completely fills the water-free atmospheric window. The output parameters reach 2.3 nJ pulse energy and 250 mW average output power at 108 MHz repetition rate.

© 2014 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.4050) Lasers and laser optics : Mode-locked lasers

ToC Category:
Nonlinear Sources

Original Manuscript: January 7, 2014
Revised Manuscript: February 24, 2014
Manuscript Accepted: February 25, 2014
Published: March 4, 2014

Virtual Issues
2013 Advanced Solid State Lasers (2013) Optics Express

Nikolai Tolstik, Evgeni Sorokin, and Irina T. Sorokina, "Graphene mode-locked Cr:ZnS laser with 41 fs pulse duration," Opt. Express 22, 5564-5571 (2014)

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