Widely tunable 1.94-microm Tm:BaY2F8 laser.
A novel BaY2F8 crystal doped with thulium ions is grown and extensively investigated. Owing to the large number of vibronic levels and to a favorable electron-phonon coupling, extremely wide absorption and emission bands around 1.9 microm are observed. A room-temperature Tm:BaY2F8 laser tunable over a 210-nm interval, from 1849 to 2059 nm, is demonstrated.
Galzerano
Gianluca
G
Istituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, Dipartimento di Fisica del Politecnico di Milano, Piazza Leonardo da Vinci 32, Milano 20133, Italy. gianluca.galzerano@fisi.polimi.it
Cornacchia
Francesco
F
Parisi
Daniela
D
Toncelli
Alessandra
A
Tonelli
Mauro
M
Laporta
Paolo
P