Open AccessLow loss slow light propagation in silicon slot waveguide
Author(s) -
Deepak V. Simili,
Michael Čada
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.026203
Subject(s) - optics , materials science , waveguide , silicon on insulator , silicon , slow light , slot waveguide , fiber bragg grating , wavelength , optoelectronics , refractive index , silicon photonics , photonic crystal , physics
Silicon slot waveguide Bragg gratings have been designed, fabricated and the experimental data has been analyzed for its slow light properties. Slow light with a group index of 12.38 at a wavelength near 1555 nm and having a low propagation loss of 5.1 dB/mm has been determined for internally corrugated slot waveguide Bragg gratings on a silicon-on-insulator platform. The combination of slow light and low propagation loss make the internally corrugated slot waveguide Bragg gratings especially attractive as a phase shifter section for low drive voltage, high speed and compact electro-optic modulators.