| 摘要 |
PROBLEM TO BE SOLVED: To provide a small laser beam generating device for generating an ultrashort laser pulse of high intensity, high repetition, and central wavelength of 1030 nm. SOLUTION: The laser beam generating device includes a laser oscillator for outputting a laser pulse of a central wavelength of 1030 nm, a pulse expander for expanding a pulse width of a laser beam from the laser oscillator, an optical parametric chirp pulse pre-amplifier that includes nonlinear optical crystal and amplifies the intensity of the laser beam from the pulse expander by irradiation of a pulse laser beam for excitation, a main amplifier that includes a Yb-ion-dope laser medium, and amplifies the intensity of the laser beam from the pre-amplifier by radiating a laser beam for excitation that includes a wavelength of 940 nm or 975 nm and a high-repetition high energy, and a pulse compressor for generating an ultrashort laser pulse of high intensity, high repetition, and a central wavelength of 1030 nm by compressing the pulse width of the laser beam from the main amplifier. COPYRIGHT: (C)2011,JPO&INPIT |
