High average power Yb:CaF2femtosecond amplifier with integrated simultaneous spatial and temporal focusing for laser material processing.
A watt level, 10-kilohertz repetition rate chirped pulse amplification system that has an integrated simultaneous spatial and temporal focusing (SSTF) processing system is demonstrated for the first time. SSTF significantly reduces nonlinear effects normally detrimental to beam control enabling the use of a low numerical aperture focus to quickly treat optically transparent materials over a large area. The integrated SSTF system has improved efficiency compared to previously reported SSTF designs, which combined with the high repetition rate of the laser, further optimizes its capability to provide rapid, large volume processing.
Center for Microintegrated Optics for Advanced Bioimaging and Control, Department of Physics, Colorado School of Mines, Golden, Colorado 80401, USA, Ph: 303 384-2385.
J
J
Squier
Center for Microintegrated Optics for Advanced Bioimaging and Control, Department of Physics, Colorado School of Mines, Golden, Colorado 80401, USA, Ph: 303 384-2385, ; Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany.
J
J
Thomas
Center for Microintegrated Optics for Advanced Bioimaging and Control, Department of Physics, Colorado School of Mines, Golden, Colorado 80401, USA, Ph: 303 384-2385.
E
E
Block
Center for Microintegrated Optics for Advanced Bioimaging and Control, Department of Physics, Colorado School of Mines, Golden, Colorado 80401, USA, Ph: 303 384-2385.
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C
Durfee
KMLabs Inc., Research and Development Department, 1855 S 57th Ct, Boulder, Colorado 80301, USA ; Colorado State University, Department of Electrical and Computer Engineering, Ft. Collins, Colorado 80523, USA.
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S
Backus
chirped pulse amplification; simultaneous spatial and temporal focusing