Laser oscillation device
AssigneeTopcon Corporation
InventorsTaizo Eno, Yoshiaki Goto, Masayuki Momiuchi
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Abstract
A laser oscillation device, comprising a laser crystal which is an optical crystal for oscillating an incident excitation light to a fundamental wave, a wavelength conversion crystal for second harmonic wave which is an optical crystal for converting the fundamental wave to a second harmonic wave, and a reflection film formed on an exit end surface of the laser crystal or on an incident end surface of the wavelength conversion crystal for second harmonic wave, wherein the reflection film reflects the second harmonic wave, and the second harmonic wave does not pass through the laser crystal.
Claims7
A laser oscillation device, comprising a laser crystal which is an optical crystal for oscillating an incident excitation light to a fundamental wave, a wavelength conversion crystal for second harmonic wave which is an optical crystal for converting the fundamental wave to a second harmonic wave, and a reflection film formed on an exit end surface of said laser crystal or on an incident end surface of said wavelength conversion crystal for second harmonic wave, wherein said reflection film reflects the second harmonic wave, and the second harmonic wave does not pass through said laser crystal.
Dependencies are inferred from the claim text.