2024-03-29T06:02:18Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/470602022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145A design method of lithium niobate on insulator ridge waveguides without leakage lossSaitoh, EmiKawaguchi, YukiSaitoh, KunimasaKoshiba, Masanori425We evaluate structural dependency of leakage losses in lithium niobate on insulator ridge waveguides. Generally, shallow ridge waveguides based on isotropic materials have inherent leakage loss for TM-like mode. On the other hand, lithium niobate is anisotropic material, thus the optical properties of lithium niobate based ridge waveguides are different from those of isotopic material based ridge waveguides. In this paper, we investigate leakage losses of lithium niobate on insulator ridge waveguides. We show that the shallow ridge waveguide structure without leakage loss can be realized by choosing the waveguide parameters adequately.Optical Society of AmericaJournal Articleapplication/pdfhttp://hdl.handle.net/2115/47060https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/47060/1/OE19-17_15833-15842.pdf1094-4087Optics Express191715833158422011-08-15enginfo:pmid/21934946info:doi/10.1364/OE.19.015833© 2011 Optical Society of Americapublisher