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Gain-switched Ti:sapphire laser
(nur in englisch verfügbar)
Light source for the coherence radar
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Ti:sapphire lasers are used for many applications, i.e. short-pulse-generation. thatīs because Sapphire crystals
endowed with Titanium-ions are able to emit light with a very broad spectrum. The best method to pumping a
Ti:sapphire laser is using a pulsed frequency-doubled Nd:YAG or Nd:YAlO laser. If the pump pulses are short enough,
i.e. a view nano-seconds, the Ti:sapphire laser has no chance to spectrally constrict his pulse. So the laser emits
a spectrally nearly Gaussian red laser pulse a short time behind the green pump pulse.
First high-power experiments we made with a flashlamp-pumped Nd:YAG laser.
Further developments were made with diode-pumped Nd:YAG pump lasers. We designed two systems: a
25 Hz broadband light source and a 500 Hz high power
laser.
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Fig. 1 High-power laser in action
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Fig. 2 First transportable system
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Fig. 3 Diode-pumped high-power system
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Sekretariat
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