title: Watt-level narrow-linewidth Nd:YAG laser operating on 4F3/2→4I15/2 transition at 1834 nm.
abstract: We report on a 808 nm diode-pumped Nd:YAG narrow linewidth laser at 1834.25 nm using a compact two-mirror linear cavity. In free-running mode, a maximum output power of 1.10 W is obtained with a slope efficiency of about 11.1% at a cooling temperature of the laser crystal of 18°C. Decreasing this temperature down to 8°C increases the output power linearly up to 1.31 W. Shortening the laser cavity reduces the output power down to about 0.70 W but on a single longitudinal mode. These laser results represent the best laser performance ever achieved with any Nd-doped bulk material in the 1.8 µm mid-infrared spectral range.
authors.forename: Bin
authors.initials: B
authors.lastname: Xu
authors.forename: Yi
authors.initials: Y
authors.lastname: Wang
authors.forename: Xiaoxu
authors.initials: X
authors.lastname: Huang
authors.forename: Jinglong
authors.initials: J
authors.lastname: Lan
authors.forename: Zhi
authors.initials: Z
authors.lastname: Lin
authors.forename: Zhengqian
authors.initials: Z
authors.lastname: Luo
authors.forename: Huiying
authors.initials: H
authors.lastname: Xu
authors.forename: Zhiping
authors.initials: Z
authors.lastname: Cai
authors.forename: Richard
authors.initials: R
authors.lastname: Moncorgé