Abstract

In this work, we attempted to optimize the flashlamp pumping of a titanium-doped sapphire rod. The dimensions of this rod are 8 mm diameter by 152.4 mm (6 inches) length. First, we realized a fast discharge circuit (2 μs FWHM) with six flashlamps. Afterwards, we used a four-flashlamp system with an enlarged discharge being shaped by a PFN (Pulse Forming Network). The first set-up yielded 530 mJ of output energy with an electrical-to-optical efficiency of 0.265%, whereas the second set-up yielded 3 J with an efficiency of 0.8% in the relaxed mode centred at 782 nm.

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