Optical: systems and elements – Optical frequency converter – Parametric oscillator
Reexamination Certificate
2011-03-15
2011-03-15
Petkovsek, Daniel (Department: 2874)
Optical: systems and elements
Optical frequency converter
Parametric oscillator
C372S094000, C372S105000
Reexamination Certificate
active
07907332
ABSTRACT:
A wide-band ultrashort-pulse optical oscillator includes: an optical amplification medium1that optically amplifies an incident light having a wide band or a plurality of bands so as to be converted into an oscillation light emitted from an optical resonator; an energy injection element2that either injects energy into the optical amplification medium so that light energy is generated, or injects light energy into the optical amplification medium; a negative dispersion element4that imparts a negative dispersion to a pulse light of the oscillation light; a mode locker9that produces a mode-locking with respect to the pulse light; a positive dispersion element11that imparts a positive dispersion to the pulse light; and an optical system formed so that the pulse light passes through a loop-like optical path from the optical amplification medium via the negative dispersion element, the mode locker, and the positive dispersion element, back to the optical amplification medium in at least one of the stated direction and an opposite direction. With this, it is possible to generate an ultrashort-pulse light in a wide band, with a high degree of efficiency.
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Kondo Kiminori
Omatsu Takashige
Hamre Schumann Mueller & Larson P.C.
National University Corporation Chiba University
Osaka University
Petkovsek Daniel
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