in the subject of Experimental Physics

I give unto men weakness that they may be humble. (Ether 12:27) In the past decade, ultrashort laser sources have had a decisive impact on material processing for photonic applications. Since the first demonstration of bulk photowriting of light guides, the con-trol of the irradiation outcome and the machining of more complex devices have been ongoing challenges. However, the technique is usually restricted to the elemental association of an ultra-short source with a focusing lens. It is thus limited in the processing speed and in the achievable bulk modifications. This requires higher flexibility and adaptivity to the material properties. Accompanying studies of material modifications in space and time, we propose here that auto-mated spatio-temporal tailoring of the laser pulses is an efficient manner to overcome these limita-tions. More precisely, we demonstrate the generation of multiple processing foci for synchronous photomachining of multiple devices in the bulk. Thus, we report on the parallel photowriting of waveguides, light couplers, light dividers in 2D/3D and wavelength division demultiplexers i