Femtosecond laser written cladding waveguides and gratings for 3D shape sensing applications

Femtosecond laser pulses are used to inscribe multiple evanescent coupling waveguides with Fiber Bragg gratings in the cladding of single mode fibers to create a fiberoptical 3D shape sensor in one production step. An evaluation and a sample application will be presented.

[1]  E. Mazur,et al.  Bulk heating of transparent materials using a high-repetition-rate femtosecond laser , 2003 .

[2]  K Miura,et al.  Writing Waveguides and Gratings in Silica and Related Materials by Femto-Second Laser , 1998, Bragg Gratings, Photosensitivity, and Poling in Glass Fibers and Waveguides: Applications and Fundamentals.