Abstract
Optical waveguides have been produced by femtosecond-laser writing in a high linear and nonlinear refractive index glass (SF57). Light guiding occurs nearby a central damaged zone due to the collateral densification caused by shockwaves generated in the focal volume. High pulse energies are required to induce a modified region capable of supporting a guided mode. An alternative processing method, based on using multiple structures, has been successfully used for the production of waveguides with controllable core size at low energies.
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42.82.Et; 42.65.Re; 42.70.Ce; 81.20.–n
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Diez-Blanco, V., Siegel, J. & Solis, J. Femtosecond laser writing of optical waveguides with controllable core size in high refractive index glass. Appl. Phys. A 88, 239–242 (2007). https://doi.org/10.1007/s00339-007-4005-x
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DOI: https://doi.org/10.1007/s00339-007-4005-x