title: High-power picosecond 355 nm laser based on La₂CaB₁₀O₁₉ crystal.
abstract: Third harmonic generation experiments were performed on a type-I phase-matching La2CaB10O19 crystal cut at θ=49.4° and φ=0.0° with dimensions of 4.0  mm×4.0  mm×17.6  mm. A 1064 nm laser with a maximum average power of 35.2 W was employed as the fundamental light source, which has a pulse width of 10 picoseconds and a pulse repetition rate of 80 MHz. A type-I noncritical phase-matching LBO crystal was used to generate 532 nm lasers. By investigating a series of focusing lens combinations, a picosecond 355 nm laser of 5.3 W was obtained, which is the highest power of picosecond 355 nm laser based on a La2CaB10O19 crystal so far. The total conversion efficiency from 1064 to 355 nm was up to 15.1%.
authors.forename: Kai
authors.initials: K
authors.lastname: Li
authors.forename: Ling
authors.initials: L
authors.lastname: Zhang
authors.forename: Degang
authors.initials: D
authors.lastname: Xu
authors.forename: Guochun
authors.initials: G
authors.lastname: Zhang
authors.forename: Haijuan
authors.initials: H
authors.lastname: Yu
authors.forename: Yuye
authors.initials: Y
authors.lastname: Wang
authors.forename: Faxian
authors.initials: F
authors.lastname: Shan
authors.forename: Lirong
authors.initials: L
authors.lastname: Wang
authors.forename: Chao
authors.initials: C
authors.lastname: Yan
authors.forename: Yicheng
authors.initials: Y
authors.lastname: Wu
authors.forename: Xuechun
authors.initials: X
authors.lastname: Lin
authors.forename: Jianquan
authors.initials: J
authors.lastname: Yao
mesh_terms: D001881:Borates; D003460:Crystallization; D004867:Equipment Design; D007811:Lanthanum; D053844:Lasers, Solid-State; D055620:Optical Phenomena
chemical_list: D001881:Borates; D007811:Lanthanum