title: Nearly quantum-defect-limited efficiency, resonantly pumped, Er3+:YVO₄ laser at 1593.5 nm.
abstract: Nearly quantum-defect-limited laser operation of a resonantly pumped Er(3+):YVO₄ at 1593.5 nm is demonstrated. Maximum slope efficiency of ~85% and true CW power of ~13 W at 1593.5 nm were achieved with a beam propagation factor of M₂ ~ 1.05. This slope efficiency is, to the best of our knowledge, the highest efficiency ever reported for a crystalline Er-doped laser.
authors.affiliation: U.S. Army Research Laboratory, Attn: RDRL-SEE-O, 2800 Powder Mill Rd., Adelphi, Maryland 20783, USA.
authors.forename: N
authors.initials: N
authors.lastname: Ter-Gabrielyan
authors.forename: V
authors.initials: V
authors.lastname: Fromzel
authors.forename: T
authors.initials: T
authors.lastname: Lukasiewicz
authors.forename: W
authors.initials: W
authors.lastname: Ryba-Romanowski
authors.forename: M
authors.initials: M
authors.lastname: Dubinskii