title: Spatial distribution clamping of discrete spatial solitons due to three photon absorption in AlGaAs waveguide arrays.
abstract: We observe clamping of the output spatial light distribution of a waveguide array. Using a chirped pulse amplifier we reach peak intensities in the waveguides of ~24 GW/cm2. At this level, three photon absorption in the AlGaAs material clamps the discrete spatial soliton to a set distribution. Further increase in intensity does not change the distribution.
authors.affiliation: JILA, National Institute of Standards and Technology and University of Colorado, Boulder, Colorado 80309, USA.
authors.forename: Darren D
authors.initials: DD
authors.lastname: Hudson
authors.forename: J Nathan
authors.initials: JN
authors.lastname: Kutz
authors.forename: Thomas R
authors.initials: TR
authors.lastname: Schibli
authors.forename: Demetrios N
authors.initials: DN
authors.lastname: Christodoulides
authors.forename: Roberto
authors.initials: R
authors.lastname: Morandotti
authors.forename: Steven T
authors.initials: ST
authors.lastname: Cundiff
mesh_terms: D000042:Absorption; D000535:Aluminum / Q000737:chemistry*; D000669:Amplifiers, Electronic; D001152:Arsenicals / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005708:Gallium / Q000737:chemistry*; D008027:Light; D017785:Photons; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000295:instrumentation*
chemical_list: D001152:Arsenicals; C043055:gallium arsenide; D005708:Gallium; D000535:Aluminum