Compact broadband (O, E, S, C, L & U bands) silicon TE-pass polarizer based on ridge waveguide adiabatic S-bends

0556139 - FZÚ 2023 RIV US eng J - Článek v odborném periodiku
Zafar, H. - Zhai, Y. - Villegas, J.E. - Ravaux, F. - Kennedy, K.L. - Pereira, Mauro Fernandes - Rasras, M. - Shamim, A. - Anjum, D.H.
Compact broadband (O, E, S, C, L & U bands) silicon TE-pass polarizer based on ridge waveguide adiabatic S-bends.
Optics Express. Roč. 30, č. 6 (2022), s. 10087-10095. ISSN 1094-4087
GRANT EU: European Commission(XE) 832876 - aqua3S
Institucionální podpora: RVO:68378271
Klíčová slova: compact broadband silicon TE-pass polarizer
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.8, rok: 2022
Způsob publikování: Open access

A compact, ultra-broadband and high-performance silicon TE-pass polarizer is proposed and demonstrated experimentally. It is based on partially-etched (ridge) waveguide adiabatic S-bends, input/output tapers and side gratings on a silicon-on-insulator (SOI) platform. A compact footprint and weak back reflections are obtained due to the bent waveguide and the tapers, respectively. An extremely high extinction ratio is achieved by scattering the undesired light in the slab section using the side gratings. The 3D FDTD simulations show a TE loss less than 0.3 dB and an extinction ratio greater than 30 dB over a 500 nm wavelength range (1200 nm to 1700 nm).

Trvalý link: https://hdl.handle.net/11104/0339421