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Measurement of the increase in the SHG coefficient of proton-exchanged LiNbO3 after annealing using a grating diffraction technique

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3 Author(s)
Keys, R.W. ; STC Technol., Harlow, UK ; Loni, A. ; De la Rue, R.M.

The effect of limited levels of annealing on the second harmonic generation (SHG) coefficient (d33) of proton-exchanged LiNbO3 has been determined by measuring nonphasematched SHG in a diffraction grating structure. The effect of annealing is to partially restore the intrinsic nonlinearity of the proton-exchanged layer.

Published in:

Electronics Letters  (Volume:26 ,  Issue: 10 )