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Nonlinear refractive index of fs-laser-written waveguides in fused silica

: Blömer, D.; Szameit, A.; Dreisow, F.; Schreiber, T.; Nolte, S.; Tünnermann, A.

Postprint (2.3 MByte; PDF; )

Optics Express 14 (2006), No.6, pp.2151-2157
ISSN: 1094-4087
Journal Article, Electronic Publication
Fraunhofer IOF ()

We report on the measurement of the nonlinear refractive index of fs-laser written waveguides in fused silica by analyzing self-phase modulation of the propagating light. The nonlinear index is reduced considerably compared to the bulk material by the writing process and is furthermore highly dependant on processing parameters.