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Generation and applications of phase-locked white-light continuum pulses

Published online by Cambridge University Press:  30 July 2001

MARCO BELLINI  and
THEODOR W. HÄNSCH
MARCO BELLINI
Affiliation:
Istituto Nazionale di Ottica Applicata (INOA), L.go E. Fermi, 6, 50125, Florence, Italy European Laboratory for Non Linear Spectroscopy (LENS), L.go E. Fermi, 2, 50125, Florence, Italy Istituto Nazionale di Fisica della Materia (INFM), L.go E. Fermi, 2, 50125, Florence, Italy
THEODOR W. HÄNSCH
Affiliation:
European Laboratory for Non Linear Spectroscopy (LENS), L.go E. Fermi, 2, 50125, Florence, Italy Istituto Nazionale di Fisica della Materia (INFM), L.go E. Fermi, 2, 50125, Florence, Italy Department of Physics, University of Florence, L.go E. Fermi, 2, 50125, Florence, Italy Max-Planck-Institut für Quantenoptik, P.O. Box 1513, D-85740 Garching, Germany
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Abstract

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We report on an experiment demonstrating the high degree of mutual phase coherence between two white-light continuum pulses independently generated by phase-locked ultrashort laser pulses. We show that these secondary pulses are locked in phase and exhibit surprisingly clear and stable Young's interference fringes when overlapped on a screen in the far field. We discuss the use of such phase-locked continuum pulses in the realization of a new kind of ultrabroad frequency comb for absolute frequency measurements throughout the visible spectrum.

Type
Research Article
Information
Laser and Particle Beams , Volume 19 , Issue 1 , January 2001 , pp. 157 - 162
Copyright
© 2001 Cambridge University Press