Modal birefringence-free lithium niobate waveguides.

Title Modal birefringence-free lithium niobate waveguides.
Authors J. Schollhammer; M.Amin Baghban; K. Gallo
Journal Opt Lett
DOI 10.1364/OL.42.003578
Abstract

We investigate polarization-insensitive waveguide designs afforded by the interplay of material and waveguide birefringence in LiNbO3-on-insulator photonic wires. Fundamental mode birefringence-free operation in the 0.8-1.8 ?m spectral range is predicted for a suitable choice of waveguide widths in the 375-600 nm range. Optimized buried waveguide designs yield broadband (1350-1625 nm) index matching between TE00 and TM00 modes. Furthermore, simultaneous phase- and group-velocity matching at infrared wavelengths appears feasible for pulse durations as short as 100 fs.

Citation J. Schollhammer; M.Amin Baghban; K. Gallo.Modal birefringence-free lithium niobate waveguides.. Opt Lett. 2017;42(18):35783581. doi:10.1364/OL.42.003578

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