title: Generation of 180 W average green power from a frequency-doubled picosecond rod fiber amplifier.
abstract: We report on the generation of 180 W average green power from a frequency-doubled picosecond rod fiber amplifier. In an Yb-doped fiber master-oscillator-power-amplifier system, 2.3-ps 704 MHz pulses are first amplified in small-core fibers and then in large-mode-area rod fibers to produce 270 W average infrared power with a high polarization extinction ratio and diffraction-limited beam quality. By carrying out frequency doubling in a lithium triborate (LBO) crystal, 180 W average green power is generated. To the best of our knowledge, this is the highest average green power achieved in fiber-based laser systems.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Zhao
authors.forename: Brian
authors.initials: B
authors.lastname: Sheehy
authors.forename: Michiko
authors.initials: M
authors.lastname: Minty