title: 110  W 1678  nm laser based on high-efficiency optical parametric interactions pumped by high-power slab laser.
abstract: This Letter presents a high-efficiency optical parametric amplifier pumped by a high-power slab laser with approximate uniform rectangular distribution. By optimizing the overlapping, spectrum matching, and pulse synchronization for the pump and signal lasers, output power of 110.8 W at 1678 nm with corresponding conversion efficiency of 32.3% was achieved in addition to sufficient usage of the effective area in MgO doped periodically poled lithium niobate crystal. It could also provide a designable and tunable wavelength of the amplified laser in a wide infrared region.
authors.forename: Xingbin
authors.initials: X
authors.lastname: Wei
authors.forename: Yuefeng
authors.initials: Y
authors.lastname: Peng
authors.forename: Jue
authors.initials: J
authors.lastname: Peng
authors.forename: Xingwang
authors.initials: X
authors.lastname: Luo
authors.forename: Zan
authors.initials: Z
authors.lastname: Nie
authors.forename: Tangjian
authors.initials: T
authors.lastname: Zhou
authors.forename: Jianrong
authors.initials: J
authors.lastname: Gao