Open AccessChirped-pulse–amplification seed source through direct phase modulation
Author(s) -
Ran Xin,
J. D. Zuegel
Publication year - 2018
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.26.021332
Subject(s) - optics , chirp , chirped pulse amplification , ultrashort pulse , materials science , self phase modulation , femtosecond pulse shaping , laser , regenerative amplification , bandwidth limited pulse , pulse compression , phase modulation , physics , optical amplifier , nonlinear optics , phase noise , telecommunications , radar , computer science
This work presents integration of a directly chirped laser source (DCLS) into a high-energy optical parametric chirped-pulse-amplification (OPCPA) system. DCLS is an all-fiber, chirped laser source that produces nanosecond, linearly chirped laser pulses at 1053 nm for seeding high-energy chirped-pulse-amplification systems. DCLS produces a frequency chirp on an optical pulse through direct temporal phase modulation. A 1-ns, linearly chirped pulse with a 3-nm bandwidth is produced by applying an ~1000-rad (300π) quadratic temporal phase. The chirped pulse is amplified to 76 mJ in an OPCPA system and compressed to close to its Fourier transform limit, producing an intensity autocorrelation trace with a 1.5-ps width.