High Power and High Energy Ultrafast Disk Lasers for Industrial Applications

Abstract

Pico-and femtosecond lasers with kilowatt average power levels that are also capable of providing multi-mJ pulse energies will be described. Well established 24/7 industrial ultrafast laser processes allow for an outlook on potential future applications.

Dynamic coherent beam combining based on a setup of microlens arrays

“…This offers a new possibility for scientific and industrial applications such as material processing. [6][7][8][9][10] A CBC system is an interferometer with amplifiers in the interferometer arms. The pulses of the common seed source are subsequently split and sent into the interferometer arms, amplified and combined into a single output beam.…”

Structured light for ultrafast laser micro- and nanoprocessing

“…6,67,69 This becomes even clearer if one considers the recent progress in pulse energy and average power of today's ultrafast laser platforms. 26 We use a structured light concept based on a diffractive 3D-beam splitter to discuss the potential of parallel processing for particularly efficient welding of transparent materials. 6,80 One way to displace a focus from its original position behind a lens is achieved by introducing phase modifications into the wavefront of the illuminating optical field.…”

“…6,7,[22][23][24][25] There is ongoing progress regarding the display's ability to resist high peak and average powers, so that these devices may be part of future industrial processing optics forming ultrashort pulsed optical radiation in the kilowatt and tens-of-millijoules class. [26][27][28] Equally conceivable are concepts where the laser system itself is able to provide structured light. Such systems based, for example, on intracavity beam shaping, 29,30 amplified transverse fiber modes, 31,32 or on coherent beam combining [33][34][35] enable complex focus shaping up to highly dynamic focus scanning and splitting.…”

Structured light for ultrafast laser micro- and nanoprocessing

“…6,61,63 This becomes even clearer if one considers the recent progress in pulse energy and average power of today's ultrafast laser platforms. 24 We use a structured light concept based on a diffractive 3D-beam splitter to discuss the potential of parallel processing for particularly efficient welding of transparent materials. 6,72 One way to displace a focus from its original position behind a lens is achieved by introducing phase modifications into the wavefront of the illuminating optical field.…”

“…6,7,[20][21][22][23] There is ongoing progress regarding the display's ability to resist high peak and average powers, so that these devices may be part of future industrial processing optics forming ultrashort pulsed optical radiation in the kilowatt and tens-ofmillijoules class. [24][25][26] Equally conceivable are concepts where the laser system itself is able to provide structured light. Such systems based, for example, on intra-cavity beam shap-ing, 27,28 amplified transverse fiber modes 29,30 or on coherent beam combining [31][32][33] enable complex focus shaping up to highly dynamic focus scanning and splitting.…”