Periodically segmented waveguides in Ti:LiNbO_3
- 1 November 1994
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 19 (21) , 1732-1734
- https://doi.org/10.1364/ol.19.001732
Abstract
Periodically segmented waveguides with periods of few tens of micrometers and nonconnected segments are studied experimentally in Ti:LiNbO3. The near-field patterns were found to expand with decreasing duty cycle but to be independent of the segmentation period. The measured segmentation losses vary between 0.5 and 2.5 dB/cm, depending on the period and the duty cycle. These results agree with a simple numerical model, based on two loss mechanisms: waveguide segmentation and surface relief related to Ti indiffusion.Keywords
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