Second-harmonic generation nonliner frenquency converter
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United States of America Patent
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Nov 19, 2013
Grant Date -
Aug 2, 2012
app pub date -
Aug 26, 2011
filing date -
Feb 1, 2011
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Abstract
A second-harmonic generation nonlinear frequency converter includes a nonlinear optical crystal. The nonlinear optical crystal includes a plurality of sections. The sections connect to each other in sequence, and each section has a phase different from others. Each of the phases includes a positive domain and a negative domain. Each of the sections includes a plurality of quasi-phase-matching structures. The quasi-phase-matching structures connect to each other in sequence and have the same phase in one section.
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