Open AccessHigh-energy pulse stacking via regenerative pulse-burst amplification
Author(s) -
Ignas Astrauskas,
Edgar Kaksis,
Tobias Flöry,
G. Andriukaitis,
A. Pugžlys,
Andrius Baltuška,
John Ruppe,
Siyun Chen,
Almantas Galvanauskas,
Tadas Balčiūnas
Publication year - 2017
Publication title -
optics letters
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.42.002201
Subject(s) - pulse (music) , femtosecond pulse shaping , chirped pulse amplification , optics , ultrashort pulse , femtosecond , materials science , burst mode (computing) , regenerative amplification , optical parametric amplifier , multiphoton intrapulse interference phase scan , bandwidth limited pulse , amplifier , stacking , laser , pulse duration , optoelectronics , optical amplifier , physics , electronic engineering , nuclear magnetic resonance , cmos , detector , engineering
Here we present a coherent pulse stacking approach for upscaling the energy of a solid-state femtosecond chirped pulse amplifier. We demonstrate pulse splitting into four replicas, amplification in a burst-mode regenerative Yb:CaF 2 amplifier, designed to overcome intracavity optical damage by colliding pulse replicas, and coherent combining into a single millijoule level pulse. The thresholds of pulse-burst-induced damage of optical elements are experimentally investigated. The scheme allows achieving an enhancement factor of 2.62 using a single-stage stacker cavity and, potentially, much higher enhancement factors using cascaded stacking.