Robustness of phase coherence against amplification in a flashlamp-pumped multi-pass femtosecond laser

Year: 2004

Authors: Corsi C., Bellini M.

Autors Affiliation: European Laboratory for Non-Linear Spectroscopy (LENS), Via N. Carrara 1, 50019 Sesto Fiorentino (FI) Firenze, Italy; Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: We show that the phase of an ultra-short laser pulse undergoing the process of chirped-pulse amplification in a flashlamp-pumped multi-pass configuration is surprisingly well locked to the phase of the original pulse emitted by a mode-locked oscillator. We demonstrate that the relative phase jitter introduced in the amplification remains small (<0.1 rad r.m.s.) and does not spoil the visibility of fringes obtained in an interferometric experiment. These results indicate that, using a carrier-phase-stabilized seed laser, the generation of phase-controlled, high-intensity laser pulses is possible and relatively straightforward even with the commonly available flashlamp-pumped amplification systems. Journal/Review: APPLIED PHYSICS B-LASERS AND OPTICS

Volume: 78 (1)      Pages from: 31  to: 34

KeyWords: Amplification; Interferometry; Jitter; Laser mode locking; Light interference; Optically pumped lasers; Oscillators (electronic); Phase shift, Chirped pulse amplification; Flashlamp pumped multi pass femtosecond laser; Mode locked oscillator, Ultrashort pulses
DOI: 10.1007/s00340-003-1340-2

Citations: 4
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