Second Harmonic Generation in Optical Fibres: Multiphoton Absorption and Translation-inversion Symmetry |
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| Authors: | RJ Potton |
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| Affiliation: | Department of Pure and Applied Physics , University of Salford , Salford, M5 4WT, U.K. |
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| Abstract: | Abstract Multiphoton absorption provides a route to x (2) grating formation in optical fibres. It explains the efficacy of ‘seeding’ the fibre with green light to induce fibre second harmonic generation. The process depends on absorption sites with spatially inverted configurations having different multiphoton absorption rates. |
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