R. Ponomarev, A. B. Volyntsev, I. S. Azanova, E. D. Voblikov
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Pyroelectric effect in X-cut LiNbO3 optical modulators
We investigate the pyroelectric effect in lithium niobate crystal and its influence on the integrated optical Mach-Zehnder interferometer. It was shown that pyroelectric charges provoke high operating point drift and waveguide properties degradation with sample heating.