Direct amplification of a nanosecond laser diode in a high-gain diode-pumped Nd:YVO4 amplifier - Archive ouverte HAL Access content directly
Journal Articles Optics Letters Year : 2014

Direct amplification of a nanosecond laser diode in a high-gain diode-pumped Nd:YVO4 amplifier

(1) , (1) , (1)
1
Xavier Délen
François Balembois
  • Function : Author
  • PersonId : 915455
Patrick Georges

Abstract

We demonstrate that Nd:YVO4 can efficiently amplify a nanosecond laser diode in a very simple double-pass configuration. Based on longitudinal pumping with a high brightness fiber-coupled laser diode at 808 nm (60 W, 100 μm, 0.22 NA) and a low Nd-doped (0.2%) temperature controlled Nd:YVO4 we achieved an optical gain of 62 dB with very low (<2%) parasitic laser emission and an average output power of 10 W. At 15 kHz, we observed a strong gain saturation dynamic resulting in a pulse duration reduction from 100 to 3.5 ns. This effect enhances the peak power by a factor of 18 (130 kW) with an energy of 620 μJ.
Fichier principal
Vignette du fichier
ol-39-4-997.pdf (441.06 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

hal-01070107 , version 1 (30-09-2014)

Identifiers

Cite

Xavier Délen, François Balembois, Patrick Georges. Direct amplification of a nanosecond laser diode in a high-gain diode-pumped Nd:YVO4 amplifier. Optics Letters, 2014, 39 (4), pp.997-1000. ⟨10.1364/OL.39.000997⟩. ⟨hal-01070107⟩
287 View
595 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More