| 摘要 |
The invention relates to a method and device for the optical parametric amplification of pulses with frequency drift, which uses two pump signals and which enables the spectral gain band to be widened. According to the invention, which is applied in particular to laser-matter interaction, a four-wave mixing effect is used, preferably in an optical fiber (F), between each pulse (S) and the two pump signals (P1, P2); and half (fM) of the sum of the respective optical frequencies (fP1, fP2) of said signals belongs to the support of the spectrum of the pulses. |
