High-efficiency diode-pumped Tm:GdLiF4 laser at 1.9 microm.
Continuous-wave laser action of a Tm-doped GdLiF(4) (GLF) crystal pumped by a laser diode is reported at room temperature. A comparative analysis of laser performance using GLF crystals with doping concentrations of 8 at. % and 12 at. % of Tm(3+) has been carried out. A maximum output power of 1.47 W with 57% slope efficiency and a wide tunability range from 1826 to 2054 nm have been obtained at 8% Tm doping level.
Coluccelli
Nicola
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Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale della Recherche, and Dipartimento di Fisica del Politecnico di Milano, 20133 Milano, Italy. nicola.coluccelli@polimi.it
Galzerano
Gianluca
G
Cornacchia
Francesco
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Di Lieto
Alberto
A
Tonelli
Mauro
M
Laporta
Paolo
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