Wavelength conversion device, laser apparatus, image forming apparatus, and display apparatus
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United States of America Patent
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Feb 21, 2012
Grant Date -
Mar 25, 2010
app pub date -
Feb 6, 2008
filing date -
Mar 26, 2007
priority date (Note) -
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Abstract
(PPMgLN) having a periodic polarization reversed structure, and the +Z and −Z surfaces of the PPMgLN are covered with thin chrome (Cr) film. In the PPMgLN, the incident surface and output surface are disposed on the −X side and +X side, respectively, in the longitudinal direction. Because of this structure, even when a high-power laser fundamental wave is incident, the PPMgLN can avoid destruction and damage due to the electric field, thereby enabling the stable output of high-power harmonic.
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