6533b7dafe1ef96bd126e9bb

RESEARCH PRODUCT

Impact of optical and structural aging in As_2S_3 microstructured optical fibers on mid-infrared supercontinuum generation

Clément StrutynskiFrédéric DésévédavyO. MouawadBertrand KiblerGrégory GadretFrédéric SmektalaJulien FatomeOlivier HeintzJean-charles JulesFoued AmraniJ. Picot-clémenteEric Lesniewska

subject

Optical fiberMaterials sciencebusiness.industryPhysics::OpticsMicrostructured optical fiberAtomic and Molecular Physics and OpticsLight scatteringSupercontinuumlaw.inventionsymbols.namesakeOpticslawsymbolsAbsorption (electromagnetic radiation)Self-phase modulationbusinessNonlinear Schrödinger equationPhotonic-crystal fiber

description

We analyze optical and structural aging in As2S3 microstructured optical fibers (MOFs) that may have an impact on mid-infrared supercontinuum generation. A strong alteration of optical transparency at the fundamental OH absorption peak is measured for high-purity As2S3 MOF stored in atmospheric conditions. The surface evolution and inherent deviation of corresponding chemical composition confirm that the optical and chemical properties of MOFs degrade upon exposure to ambient conditions because of counteractive surface process. This phenomenon substantially reduces the optical quality of the MOFs and therefore restrains the spectral expansion of generated supercontinuum. This aging process is well confirmed by the good matching between previous experimental results and the reported numerical simulations based on the generalized nonlinear Schrodinger equation.

https://doi.org/10.1364/oe.22.023912