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Updated: May 27, 2026

Laser-induced Forward Transfer for Flip-chip Packaging of Single Dies
Published on: March 20, 2015
Photoinjector drive laser of the FLASH FEL
Ingo Will1, Horst I Templin, Siegfried Schreiber
1Max-Born-Institute for Nonlinear Optics and Short Pulse Spectroscopy, Berlin, Germany. will@mbi-berlin.de
Abstract:
The upgraded photoinjector drive laser of the free-electron laser facility FLASH at DESY Hamburg is described in this paper. This laser produces trains of 800 and 2400 ultraviolet picosecond pulses at 1 MHz and 3 MHz repetition rate in the trains, respectively. The amplifying elements of the system are Nd:YLF-rods, which are pumped by fiber-coupled semiconductor diodes. Compared to the flashlamp-pumped photocathode laser previously used at FLASH, the new diode-pumped laser features a better reliability and a significantly improved stability of its pulse parameters.

