Open AccessCompact millijoule Yb3+:CaF2 laser with 162 fs pulses
Author(s) -
Markus Loeser,
Constantin Bernert,
Daniel Albach,
Karl Zeil,
U. Schramm,
Mathias Siebold
Publication year - 2021
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.418319
Subject(s) - optics , regenerative amplification , chirped pulse amplification , ultrashort pulse , laser , pulse compression , materials science , pulse duration , femtosecond pulse shaping , bandwidth limited pulse , optical amplifier , optoelectronics , physics , telecommunications , radar , computer science
We report on a compact diode-pumped, chirped pulse regenerative amplifier system with a pulse duration of 162 fs and an output pulse energy of 1 mJ before as well as 910 µJ after compression optimized for the probing of ultrafast relativistic laser-plasma processes. A chirped volume Bragg grating (CVBG) acts as a combined pulse stretcher/compressor representing a robust solution for a CPA laser system in the millijoule range. Yb 3+ :CaF 2 is used as gain medium to support a large bandwidth of 16 nm (FWHM) when spectral gain shaping is applied. Chirped mirrors compensate for any additional dispersion introduced to the system.