title: Femtosecond SESAM-modelocked Cr:ZnS laser.
abstract: We report self-starting femtosecond operation of a 180-MHz SESAM-controlled prismless Cr:ZnS laser around 2400 nm at open air and room temperature. Dispersion compensation was achieved by a combination of bulk materials and chirped mirrors. Both soliton- and chirped-pulse operation regimes have been demonstrated with 130 fs (630 fs) pulse duration at 130 (205) mW average output power, respectively. The output power was about 30% higher than for a comparable Cr:ZnSe sample in the same cavity.
authors.affiliation: Photonics Institute, TU Wien, Gusshausstrasse 27/387, A-1040 Vienna, Austria. sorokin@tuwien.ac.at
authors.forename: Evgeni
authors.initials: E
authors.lastname: Sorokin
authors.forename: Nikolai
authors.initials: N
authors.lastname: Tolstik
authors.forename: Kathleen I
authors.initials: KI
authors.lastname: Schaffers
authors.forename: Irina T
authors.initials: IT
authors.lastname: Sorokina
mesh_terms: D002857:Chromium / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D007909:Lenses; D018036:Selenium Compounds / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D017967:Zinc Compounds / Q000737:chemistry*
chemical_list: D018036:Selenium Compounds; D017967:Zinc Compounds; D002857:Chromium; C044696:zinc selenide