Abstract
The electro-optic coefficient, r33, of proton exchanged LiNbO3 waveguides has been measured in well-defined phases of the exchanged layer. Namely, in two low index-jump α-phases, i.e. unannealed soft-exchanged (SPE) and annealed (APE) guides, and in two high index-jump phases, i.e. β1 guides and, for comparison, ordinary proton exchanged (PE) guides (having a mixture of phases). The following values have been obtained (in pm/V): 22.1±0.6 for SPE; 20.9±0.7 for APE; 0.33±0.01 for β1; and 0.76±0.04 for PE. Differences between these values are discussed in terms of the structure of the phase involved.
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Received: 18 May 2001 / Revised version: 22 August 2001 / Published online: 30 October 2001
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Méndez, A., de la Paliza, G., García-Cabañes, A. et al. Comparison of the electro-optic coefficient r33 in well-defined phases of proton exchanged LiNbO3 waveguides. Appl Phys B 73, 485–488 (2001). https://doi.org/10.1007/s003400100711
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DOI: https://doi.org/10.1007/s003400100711