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Article Dans Une Revue Optics Express Année : 2019

Tunable UV source based on an LED-pumped cavity-dumped Cr:LiSAF laser

P. Pichon
Frédéric Druon
Jean-Philippe Blanchot
  • Fonction : Auteur
Patrick Georges
François Balembois
  • Fonction : Auteur
  • PersonId : 915455

Résumé

We developed a light-emitting diode (LED)-pumped Cr:LiSAF laser operating in Q-switched and cavity-dumped regimes. The laser produces 1.1 mJ pulses with a pulse duration of 8.5 ns at a repetition rate of 10 Hz on a broad spectrum centered at 840 nm with a full width at half maximum of 23 nm. After frequency tripling in two cascaded LBO crystals, we obtained 7 ns pulses with an energy of 13 µJ at 280 nm and with a spectral width of 0.5 nm, limited by the spectral acceptance of the phase matching process. By rotating both LBO crystals, UV emission is tuned from 276 nm to 284 nm taking advantage of the broad infrared spectrum of the Cr:LiSAF laser.
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Dates et versions

hal-02232549 , version 1 (01-08-2019)

Identifiants

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P. Pichon, Hussein Taleb, Frédéric Druon, Jean-Philippe Blanchot, Patrick Georges, et al.. Tunable UV source based on an LED-pumped cavity-dumped Cr:LiSAF laser. Optics Express, 2019, 27 (16), pp.23446. ⟨10.1364/OE.27.023446⟩. ⟨hal-02232549⟩
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