M. Fujimura et al., ENHANCEMENT OF SHG EFFICIENCY IN PERIODICALLY POLED LINBO3 WAVE-GUIDEUTILIZING A RESONANCE EFFECT, Electronics Letters, 32(14), 1996, pp. 1283-1284
A resonant LiNbO3 waveguide quasi-phase-matched second harmonic genera
tion (SHG) device has been demonstrated. The resonator consisted of a
channel waveguide and two dielectric mirrors attached to the waveguide
facets. A normalised SHG efficiency of 400%/W and eightfold enhanceme
nt of the efficiency utilising a resonance effect were achieved.