Wavelength Converting Devices
AssigneeNGK Insulators, Ltd.
InventorsMinori Tani, Keiichiro Asai, Shoichiro Yamaguchi
Life of this patent
Estimating the term…
Abstract
It is provided a wavelength converting device comprising a periodic domain inversion structure for converting a wavelength of a fundamental wave to generate a harmonic wave. The wavelength conversion device includes a ferroelectric substrate and the periodic domain inversion structure formed in the ferroelectric substrate. A vertical domain inversion boundary of the periodic domain inversion structure is inclined with respect to a normal line of an upper face of the ferroelectric substrate, provided that the ferroelectric substrate is viewed in a cross section parallel with a propagating direction of the fundamental wave and parallel with the normal line of the upper face.
Claims7
A wavelength converting device comprising a periodic domain inversion structure for converting a wavelength of a fundamental wave to generate a harmonic wave:
- said wavelength converting device comprising a ferroelectric substrate and said periodic domain inversion structure formed in said ferroelectric substrate:
- wherein a vertical domain inversion boundary of said periodic domain inversion structure is inclined with respect to a normal line of an upper face of said ferroelectric substrate, provided that said ferroelectric substrate is viewed in a cross section parallel with a propagating direction of said fundamental wave and parallel with said normal line of said upper face;
- and
- wherein said ferroelectric substrate comprises an off-cut Y-plate.
Dependencies are inferred from the claim text.