title: Continuous-wave laser generation at ~2.1 µm in Ho:KRE(WO4)2 (RE = Y, Gd, Lu) crystals: a comparative study.
abstract: The laser performance of the monoclinic Ho:RE(WO4)2 (RE = Y, Gd, Lu) crystals is compared under identical experimental conditions. The comparison deals with the laser transition of Ho3+ at ~2.1µm by using two different pump sources, a diode laser operating at 1941 nm and a diode-pumped Tm:KLu(WO4)2 laser operating at 1946 nm. The results show internal slope efficiencies of ~60% and output powers exceeding 400 mW. The laser performance of Ho:KY(WO4)2 and Ho:KLu(WO4)2 is quite similar and superior to Ho:KGd(WO4)2.
authors.affiliation: Universitat Rovira i Virgili, Campus Sescelades c/Marcel·lí Domingo, Tarragona, Spain.
authors.forename: Venkatesan
authors.initials: V
authors.lastname: Jambunathan
authors.forename: Xavier
authors.initials: X
authors.lastname: Mateos
authors.forename: Maria Cinta
authors.initials: MC
authors.lastname: Pujol
authors.forename: Joan Josep
authors.initials: JJ
authors.lastname: Carvajal
authors.forename: Francesc
authors.initials: F
authors.lastname: Díaz
authors.forename: Magdalena
authors.initials: M
authors.lastname: Aguiló
authors.forename: Uwe
authors.initials: U
authors.lastname: Griebner
authors.forename: Valentin
authors.initials: V
authors.lastname: Petrov
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers