Open AccessAmplification of flat laser pulse train
Author(s) -
Adi Hanuka,
J. Santucci,
Dean Edstrom,
Levi Schächter,
Jinhao Ruan
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.030818
Subject(s) - optics , flatness (cosmology) , laser , pulse (music) , amplifier , physics , femtosecond pulse shaping , transverse plane , laser beam quality , fermilab , pulse wave , regenerative amplification , optical amplifier , laser beams , ultrashort pulse , optoelectronics , detector , engineering , structural engineering , cosmology , cmos , quantum mechanics , particle physics
We present modeling and measurements of flattop amplification of a laser pulse train in a diode pumped Nd:YLF system. We establish a theoretical model, accounting for the transverse Gaussian shape of an amplified laser beam, in order to explain remaining slopes in the pulse train energy. The influence of the transverse Gaussian shape on the train's flatness has been experimentally verified. Based on the model we are able to increase the total amplification of a long train of infrared seed beam in the drive laser system at the Fermilab Accelerator Science and Technology facility. The single-pass amplifier improvements resulted in a gain of ∼7 with flat output pulse train for up to 1000 seed pulses.