Status of fluoride fiber lasers

摘要

Abstract: Rare earth doped fluoride glass fibers have been shown to be excellent laser materials. In addition to their unique properties as fiber lasers, they offer more metastable levels as compared to silica, thus improving performance, adding new wavelengths, and allowing easier upconversion lasing. Room temperature cw three- level, self-terminating, upconversion, . . . lasers were demonstrated. Energy transfer and cross-relaxations devices with high efficiency and low threshold have been reported. Effort is now given to diode-pumped and tunable fluoride fiber lasers. This review paper gives an exhaustive bibliography in the field of fluoride fiber lasers and related topics, and details the latest results obtained in the field. !97