Induced spectral broadening of a weak picosecond pulse in glass produced by an intense picosecond pulse

Induced spectral broadening of a weak picosecond pulse in glass produced by an intense picosecond pulse

Spectral broadening of a weak 80-microJ picosecond 530-nm laser pulse in a BK-7 glass has been enhanced over the entire spectral band by the presence of an intense millijoule picosecond 1060-nm laser pulse. The spectral distributions of the self-phase modulation and the induced-phase modulation sign...

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Veröffentlicht in:Opt. Lett.; (United States) 1986-10, Vol.11 (10), p.626-628
Hauptverfasser: ALFANO, R. R, LI, Q. X, JIMBO, T, MANASSAH, J. T, HO, P. P
Format: Artikel
Sprache:eng
Schlagworte:
420300 - Engineering- Lasers- (-1989)
Applied sciences
Design of specific laser systems
ELECTROMAGNETIC RADIATION
ENGINEERING
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
GLASS
Laser optical systems: design and operation
LASER RADIATION
LINE BROADENING
MODULATION
NONLINEAR OPTICS
OPTICS
Other techniques and industries
Physics
PULSES
RADIATIONS
SIGNALS
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Zusammenfassung:Spectral broadening of a weak 80-microJ picosecond 530-nm laser pulse in a BK-7 glass has been enhanced over the entire spectral band by the presence of an intense millijoule picosecond 1060-nm laser pulse. The spectral distributions of the self-phase modulation and the induced-phase modulation signals are similar. The dominant enhancement mechanism for the induced supercontinuum was determined to be caused by an induced-phase modulation process, not by stimulated four-photon scattering.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.11.000626