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Considerations on material composition for low-loss hollow-core integrated optical waveguides

2005; Elsevier BV; Volume: 260; Issue: 2 Linguagem: Inglês

10.1016/j.optcom.2005.11.032

1873-0310

Henri P. Uranus, H.J.W.M. Hoekstra, E. van Groesen,

Advanced Fiber Optic Sensors

The role of cladding bilayer material compositions to obtain low-loss hollow-core integrated optical waveguides was studied. Using the simple Fresnel reflection formulae, the optimal material composition was determined. It is shown that using bilayers with higher index-contrast does not always lead to a lower loss for (quasi-)linearly polarized modes. Based on that knowledge, structures that exhibit very low leakage loss for quasi-TE00 mode are proposed and designed using Si-compatible materials.