Proton-exchanged periodically segmentedchannel waveguides in lithium niobate
- 2 February 1995
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 31 (3) , 186-187
- https://doi.org/10.1049/el:19950111
Abstract
Annealed proton-exchanged periodically segmented channel waveguides were fabricated in Z-cut lithium niobate. The propagation losses as a function of the duty cycle and the segmentation period are reported. Waveguiding was observed at large segmentation periods, up to 100 µm. For duty cycles > 0.5, the propagation losses are nearly the same as measured for a continuous waveguide with the same width, namely ~1.45 dB/cm. With decreasing duty cycle, the mode expands in the transverse directions.Keywords
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