Multiple wave frequency multiplication quasi phase matching photo crystal
A quasi-phase matching, photonic crystal technology, applied in optics, lasers, optical components, etc.
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Embodiment 1
[0021] The working temperature of the photonic crystal in this embodiment is 24.5 degrees Celsius; the photonic crystal is lithium niobate (LiNbO 3 )material.
[0022] The structure of photonic crystal is like figure 2 Shown. The superlattice point is a polarization inversion column made by a high-pressure polarization process, with a diameter of 4μm; the shape of the superlattice 7 of the photonic crystal is a triangle, and its three sides are the first side a of the superlattice. 1 , The length is 5.1μm, the second side a of the superlattice 2 , The length is 8.52μm and the first side a of the superlattice 3 , The length is 12.27μm; the shape of the reciprocal lattice 8 corresponding to the superlattice 7 is a triangle, and its three sides are the first side b of the reciprocal lattice. 1 , The second side of the inverted vector lattice b 2 And the third side of the reciprocal lattice b 3 ; The photonic crystal consists of the first incident surface 1, the second incident surfac...
Embodiment 2
[0025] The conversion efficiency of the second harmonic is:
[0026] η 2 ω = 8 π 2 d eff 2 L eff 2 I ω ϵ 0 n ω 2 n 2 ω c λ ω 2 sin c 2 ( ΔkL / 2 ) - - ( 1 ...
PUM
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