We report the fabrication of hexagonal arrays of fs-laser written waveguides in fused silica. The characterization of the light propagation inside the arrays proves the accuracy of the technology and the possibility t...
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We report the fabrication of hexagonal arrays of fs-laser written waveguides in fused silica. The characterization of the light propagation inside the arrays proves the accuracy of the technology and the possibility to create highly symmetric 2-dimensional arrays. Furthermore we demonstrate the ability to fabricate large arrangements of evanescently coupled waveguide structures with this highly productive procedure.
We report on a high energy CPA system based on amplification in low-nonlinearity photonic crystal fibers. The resulting output of pulse energies of 100 muJ in ultrashort pulses with high repetition rates are applied t...
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We report on a high energy CPA system based on amplification in low-nonlinearity photonic crystal fibers. The resulting output of pulse energies of 100 muJ in ultrashort pulses with high repetition rates are applied to high speed micromachining. e.g. the drilling of holes in 1 mm thick steel
In this study we compare the responses of stacked actuators made of "soft" ferroelectrics to those of less common materials such as electrostrictive and antiferroelectric to ferroelectric phase-switching cer...
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In this study we compare the responses of stacked actuators made of "soft" ferroelectrics to those of less common materials such as electrostrictive and antiferroelectric to ferroelectric phase-switching ceramics. The same measurements were performed on various samples which were identical in size and manufacturing technology. The latest material results on relaxor-based single crystals were considered to give a more comprehensive overview. Additionally, we discussed the clamping effects caused by the actuator structure, which have to be taken into account comparing the stack results to pure material response.
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