title: 3-Dimensional thermal analysis and active cooling of short-length high-power fiber lasers.
abstract: A fully 3-dimensional finite element model has been developed that simulates the internal temperature distribution of short-length high-power fiber lasers. We have validated the numerical model by building a short, cladding-pumped, Er-Yb-codoped fiber laser and measuring the core temperature during laser operation. A dual-end-pumped, actively cooled, fiber laser has generated >11 W CW output power at 1535 nm from only 11.9 cm of active fiber. Simulations indicate power-scaling possibilities with improved fiber and cooling designs.
authors.forename: L
authors.initials: L
authors.lastname: Li
authors.forename: H
authors.initials: H
authors.lastname: Li
authors.forename: T
authors.initials: T
authors.lastname: Qiu
authors.forename: V L
authors.initials: VL
authors.lastname: Temyanko
authors.forename: M M
authors.initials: MM
authors.lastname: Morrell
authors.forename: A
authors.initials: A
authors.lastname: Schülzgen
authors.forename: A
authors.initials: A
authors.lastname: Mafi
authors.forename: J V
authors.initials: JV
authors.lastname: Moloney
authors.forename: N
authors.initials: N
authors.lastname: Peyghambarian