Gain structuration in dual-wavelength Nd:YSAG ceramic lasers

Abstract : We demonstrate a dual-wavelength Nd:YSAG ceramic laser in which the gain volume is structurated into two different regions providing gain at the wavelength of 1061 nm and 1064 nm respectively. We discuss the role of the nonuniform distribution of the temperature in structurating the gain region via the Boltzmann effect. We show that the two laser wavelengths can be switched by adjusting the size of the pump beam or by slightly modifying the geometrical parameters of the laser cavity, either the length of the cavity or the orientation of a mirror. Additionally, we demonstrate that the transverse modes at the two wavelengths are shaped according to the effect of gain filtering caused by the structuration of the gain region.
Type de document :
Article dans une revue
Optics Express, Optical Society of America, 2012, 20, pp.25596-25602
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https://hal.archives-ouvertes.fr/hal-00788981
Contributeur : Martine Segear <>
Soumis le : vendredi 15 février 2013 - 15:04:10
Dernière modification le : mardi 12 juin 2018 - 15:18:05

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  • HAL Id : hal-00788981, version 1

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Lionel Jaffres, Alexis Labruyère, Vincent Couderc, Julie Carreaud, Alexandre Maitre, et al.. Gain structuration in dual-wavelength Nd:YSAG ceramic lasers. Optics Express, Optical Society of America, 2012, 20, pp.25596-25602. 〈hal-00788981〉

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