title: Room-temperature near-infrared tunable laser operation of Cr(4+):Ca(2)GeO(4).
abstract: Large crystals of highly doped Cr(4+):Ca(2)GeO(4) were grown by a top-seeded solution growth method. Absorption and emission measurements for various crystal orientations have been performed. From the spectroscopic measurements, the only optically active center was identified as tetrahedrally coordinated Cr(4+). Gainswitched, tunable laser operation of Cr(4+):Ca(2)GeO(4) crystal was demonstrated. Pulse energies of 0.4 mJ at 1.4 microm have been generated at a repetition rate of 100 Hz. Tunability over the 1348-1482-nm spectral range has been demonstrated.
authors.forename: V
authors.initials: V
authors.lastname: Petricević
authors.forename: A B
authors.initials: AB
authors.lastname: Bykov
authors.forename: J M
authors.initials: JM
authors.lastname: Evans
authors.forename: R R
authors.initials: RR
authors.lastname: Alfano