Electrode design to suppress thermal drift in lithiumniobate modulators
- 23 November 2000
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 36 (24) , 2013-2014
- https://doi.org/10.1049/el:20001260
Abstract
In LiNbO3 electro-optical devices, the symmetric design of the pair of ground-electrodes is an important factor in suppressing the thermal drift. Although conventional x-cut LiNbO3 Mach-Zehnder modulators installed with identical ground-electrodes exhibit ≤ 1 V in their bias change between 10 and 60°C, the asymmetric electrode design to narrow one ground-electrode (to approximately one-quarter in experiments) demonstrates that the bias change increases to 3 to 6 V.Keywords
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