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

Stefano Minardi 1 Ciro d'Amico 2 Guanghua Cheng 2, 3 Razvan Stoian 2
1 Friedrich-Schiller-Universität Jena
2 LHC - Laboratoire Hubert Curien [Saint Etienne]
3 State Key Laboratory of Transient Optics and Photonics,
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
Keywords : Laser materials processing Ultrafast phenomena Waveguides
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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 : Tuesday, December 8, 2020 - 10:30:05 AM

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UNIV-ST-ETIENNE | CNRS | LAHC | IOGS | PARISTECH | UDL

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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 - OSA Publishing, 2015, 40 (2), pp.257. ⟨10.1364/OL.40.000257⟩. ⟨ujm-01102355⟩

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