Phase-locked white-light continuum pulses: toward a universal optical frequency-comb synthesizer

Year: 2000

Authors: Bellini M., Hansch T.W.

Autors Affiliation: Istituto Nazionale di Ottica Applicata, Largo E Fermi 6, 50125 Firenze, Italy; European Laboratory for Non-Linear Spectroscopy and Istituto Nazionale di Fisica della Materia, Largo E. Fermi 2, 50125 Firenze, Italy;
Department of Physics, University of Florence, Italy;
Max Planck Institut für Quantenoptik, P.O. Box 1513, D-85740 Garching, Germany

Abstract: We demonstrate that two white-light continuum pulses that are independently generated by phase-locked ultrashort laser pulses are locked in phase and show surprisingly clear and stable Young interference fringes. The experiment shows that the two generated continua emit essentially in phase and that random phase jitter can remain negligible. This result is not only of interest for studies of nonlinear field-matter interactions but also suggests that such white-light continuum pulses can be used to realize a broad frequency comb for absolute frequency measurements from the IR to the UV. (C) 2000 Optical Society of America

Journal/Review: OPTICS LETTERS

Volume: 25 (14)      Pages from: 1049  to: 1051

KeyWords: White light, Laser mode locking; Light interference; Refractive index; Ultraviolet radiation, Ultrashort pulses
DOI: 10.1364/OL.25.001049

Citations: 140
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