Aging and structure-change processes in proton-exchange waveguides in lithium niobate crystals
Аuthors, , ,
Perm State University,
AbstractTime variations of the refraction index of proton-exchanged guiding layers on lithium niobate (X cut), which reflect slow aging (stabilization) processes in waveguides, were studied by mode spectroscopy technique. Structural changes in channel proton-exchanged waveguides after long-term stabilization (3 years) were studied by wet chemical etching of proton-exchanged layers and 3D profilometry.
Keywords:optical waveguide, lithium niobate, proton, exchange, aging of proton-exchanged waveguides.