RT Journal Article
T1 Design of a Broadband Polarization Splitter Based on Anisotropy-Engineered Tilted Subwavelength Gratings
A1 Herrero-Bermello, Alaine
A1 Luque-González, José Manuel
A1 Villafranca Velasco, Aitor
A1 Ortega-Moñux, Alejandro
A1 Cheben, Pavel
A1 Halir, Robert
K1 Redes de banda ancha
AB Polarization management is of paramount importance in integrated optics, partic-ularly for highly birefringent photonic platforms such as silicon-on-insulator. In this paper, wepresent a polarization beam splitter based on a multimode interference coupler incorporatingtilted subwavelength gratings. The tilt provides accurate control of the structural anisotropyand enables independent selection of the beat length for two orthogonal polarization states.As a result, device length is reduced to less than 100 μm while simultaneously achiev-ing broadband operation through subwavelength grating dispersion engineering. Insertionlosses below 1 dB and an extinction ratio higher than 20 dB are demonstrated throughthree-dimensional FDTD simulation in a 131-nm bandwidth.
PB IEEE Xplore
YR 2019
FD 2019-06-01
LK https://hdl.handle.net/10630/36021
UL https://hdl.handle.net/10630/36021
LA eng
NO A. Herrero-Bermello, J. M. Luque-González, A. V. Velasco, A. Ortega-Moñux, P. Cheben and R. Halir, "Design of a Broadband Polarization Splitter Based on Anisotropy-Engineered Tilted Subwavelength Gratings," in IEEE Photonics Journal, vol. 11, no. 3, pp. 1-8, June 2019, Art no. 6601508, doi: 10.1109/JPHOT.2019.2912335
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026