title: Generation of 150 MW, 110 fs pulses by phase-locked amplification in multicore photonic crystal fiber.
abstract: We use seven-core Yb-doped large-mode-area (LMA) photonic crystal fiber (PCF) to demonstrate phase-locked amplification of 0.7 W, 1 MHz, 1.9 ps laser pulses delivered by an LMA-PCF-laser-LMA-PCF-preamplifier system. Compression of the 24 W output of the multicore LMA-PCF amplifier with a grating compressor yields 110 fs pulses with a peak power up to 150 MW.
authors.affiliation: Ultrafast Laser Laboratory, Key Laboratory of Opto-electronic Information Science and Technology of Ministry of Education, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, 300072 Tianjin, China.
authors.forename: Xiao-Hui
authors.initials: XH
authors.lastname: Fang
authors.forename: Ming-Lie
authors.initials: ML
authors.lastname: Hu
authors.forename: Bo-Wen
authors.initials: BW
authors.lastname: Liu
authors.forename: Lu
authors.initials: L
authors.lastname: Chai
authors.forename: Ching-Yue
authors.initials: CY
authors.lastname: Wang
authors.forename: Aleksei M
authors.initials: AM
authors.lastname: Zheltikov