Spectrally resolved and phase-sensitive far-field measurement for the coherent addition of laser pulses in a tiled grating compressor.
We describe a method that can be used for the coherent addition of laser pulses. As different laser pulses are initially generated in a laser-pulse compressor equipped with a tiled grating, such a coherent addition is indispensable in order to maximize the intensity in the laser far field. We present measurements in this context where, up to now, an unavoidable difference in the grating constants between the phased gratings reduced the maximum achievable intensity. The method significantly facilitates the high-precision alignment of a tiled grating compressor and could also be used for a coherent addition of laser pulses.
Hornung
Marco
M
Institute of Optics and Quantum Electronics, 07743 Jena, Max-Wien Platz 1, Germany. marco.hornung@uni-jena.de
Bödefeld
Ragnar
R
Kessler
Alexander
A
Hein
Joachim
J
Kaluza
Malte C
MC