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Low-power-threshold photonic saturable absorber in nonlinear chalcogenide glass

Abstract : We experimentally demonstrate controllable nonlinear modulation of optical guiding in ultrafast laser-written evan- escently coupled waveguide arrays in bulk gallium lanthanum sulfide chalcogenide glass. The intensity-dependent response is validated by simulating light propagation in waveguide arrays with instantaneous Kerr nonlinearity using a discrete continuous spatiotemporal unidirectional Maxwell equation model. The intensity-driven modulation of transmission in multicore structures acts as a potential saturable absorber at kilowatt threshold levels
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https://hal-ujm.archives-ouvertes.fr/ujm-01102355
Contributor : Razvan Stoian <>
Submitted on : Monday, January 12, 2015 - 3:54:17 PM
Last modification on : Monday, January 13, 2020 - 5:46:05 PM

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Stefano Minardi, Ciro d'Amico, Guanghua Cheng, Razvan Stoian. Low-power-threshold photonic saturable absorber in nonlinear chalcogenide glass. Optics Letters, Optical Society of America, 2015, 40 (2), pp.257. ⟨10.1364/OL.40.000257⟩. ⟨ujm-01102355⟩

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