摘要:
A mode-locked laser apparatus includes a resonator (laser cavity), a mode-locking device placed in the resonator, a solid-stated laser medium that is doped with Yb (ytterbium) and placed in the resonator and an excitation means for causing excitation light to enter the solid-state laser medium. In the mode-locked laser apparatus, light with an oscillation wavelength in a wavelength band on the longer wavelength side of the maximum peak wavelength in a fluorescence spectrum of the solid-state laser medium is used as output light.
摘要:
A mode-locked laser device includes a Fabry-Perot resonator, a mode-locking element disposed within the resonator, a solid-state laser medium disposed within the resonator, and exciting means for applying excitation light to the solid-state laser medium. The opposite ends of the resonator, the mode-locking element and the solid-state laser medium are disposed to provide an average beam diameter of lasing light of not more than 150 μm on the mode-locking element and an average beam diameter of the lasing light of not more than 200 μm within the solid-state laser medium.
摘要:
A laser system with a solid state laser medium, having a broad oscillation spectrum with improved absorption efficiency of the laser medium for excitation light. The system includes: a resonator; a solid state laser medium, disposed in the resonator, having optical anisotropy; and an excitation unit for inputting excitation light to the solid state laser medium. The oscillation light is linear polarization light polarized in the direction substantially parallel to a first crystal axis of the solid state laser medium, and the excitation unit linearly polarizes the excitation light, and inputs to the solid state laser medium, with the polarization direction of the excitation light in a direction crossing the first crystal axis. In the solid state laser medium, an absorption coefficient for the excitation light in the polarization direction thereof is greater than an absorption coefficient for the excitation light in the first axis direction.
摘要:
A mode-locked laser device includes a Fabry-Perot resonator, a mode-locking element disposed within the resonator, a solid-state laser medium disposed within the resonator, and exciting means for applying excitation light to the solid-state laser medium. The opposite ends of the resonator, the mode-locking element and the solid-state laser medium are disposed to provide an average beam diameter of lasing light of not more than 150 μm on the mode-locking element and an average beam diameter of the lasing light of not more than 200 μm within the solid-state laser medium.
摘要:
A mode-locked laser device includes a Fabry-Perot resonator, a mode-locking element disposed within the resonator, a solid-state laser medium disposed within the resonator, and exciting means for applying excitation light to the solid-state laser medium. The opposite ends of the resonator, the mode-locking element and the solid-state laser medium are disposed to provide an average beam diameter of lasing light of not more than 150 μm on the mode-locking element and an average beam diameter of the lasing light of not more than 200 μm within the solid-state laser medium.
摘要:
A mode-locked laser apparatus includes a resonator (laser cavity), a mode-locking device placed in the resonator, a solid-stated laser medium that is doped with Yb (ytterbium) and placed in the resonator and an excitation means for causing excitation light to enter the solid-state laser medium. In the mode-locked laser apparatus, light with an oscillation wavelength in a wavelength band on the longer wavelength side of the maximum peak wavelength in a fluorescence spectrum of the solid-state laser medium is used as output light.
摘要:
A mode-locked laser device includes a Fabry-Perot resonator, a mode-locking element disposed within the resonator, a solid-state laser medium disposed within the resonator, and exciting means for applying excitation light to the solid-state laser medium. The opposite ends of the resonator, the mode-locking element and the solid-state laser medium are disposed to provide an average beam diameter of lasing light of not more than 150 μm on the mode-locking element and an average beam diameter of the lasing light of not more than 200 μm within the solid-state laser medium.
摘要:
In a mirror including a substrate and a dielectric multilayer coating structure formed on the substrate, the multilayer coating structure includes two mirror-function layer portions, each formed by a plurality of layers deposited one on another, and a cavity layer that is arranged between the two mirror-function layer portions, and which causes light having a predetermined wavelength to resonate between the two mirror-function layer portions. Further, a dispersion value with respect to the light having the predetermined wavelength is in the range of −600 fs2 to −3000 fs2 and a reflectance with respect to the light having the predetermined wavelength is in the range of 97% to 99.5%.
摘要:
A laser device is equipped with an exciting optical system having a GaN semiconductor laser and a condensing lens; and a resonator having of a dichroic mirror and an output mirror, and a solid laser medium is disposed within the resonator. The solid laser medium is disposed in the resonator such that the c axis of a crystal is parallel to the x axis. The exciting optical system is disposed such that the direction in which excitation light emitted from the GaN semiconductor laser is polarized is parallel to the y axis, and is formed so as to absorb excitation light in the crystal axis perpendicular to the c axis. The direction in which the oscillation light emitted from the solid laser medium is polarized coincides with a direction parallel to the c-axis direction, and also coincides with a direction along the x axis.
摘要:
There is provided a mode-locked laser including: a resonator having a pair of resonance mirrors; a solid-state laser medium, disposed in the resonator and outputting oscillating light due to excitation light being incident thereon; an excitation unit that causes the excitation light to be incident on the solid-state laser medium; a mode-locked element, disposed in the resonator for inducing mode locking; and a temperature adjusting unit that adjusts the temperature of the pair of resonance mirrors such that oscillating light of a specific frequency is output from the resonator.