title: High brightness beam shaping and fiber coupling of laser-diode bars.
abstract: The strong beam quality mismatch in the fast and slow axes of laser-diode bars requires a significant beam shaping method to reach the parameters needed for fiber coupling. An effective solution to this problem is proposed that is based on a right-angle prism array and a distributed cylinder-lens stack. Coupling 12 mini-bars into a standard 100 μm core diameter and 0.15 numerical aperture fiber is achieved, and the output power can reach 400 W. Using this technique, production of compact and high brightness fiber-coupled laser-diode modules is possible.
authors.forename: Junhong
authors.initials: J
authors.lastname: Yu
authors.forename: Linui
authors.initials: L
authors.lastname: Guo
authors.forename: Hualing
authors.initials: H
authors.lastname: Wu
authors.forename: Zhao
authors.initials: Z
authors.lastname: Wang
authors.forename: Hao
authors.initials: H
authors.lastname: Tan
authors.forename: Songxin
authors.initials: S
authors.lastname: Gao
authors.forename: Deyong
authors.initials: D
authors.lastname: Wu
authors.forename: Kai
authors.initials: K
authors.lastname: Zhang