Bandpass integrated Bragg gratings in silicon-on-insulator with well-controlled amplitude and phase responses.
Bandpass filters with square shape amplitude responses and well-controlled dispersion characteristics are achieved by accurate apodization of Bragg grating structures in silicon-on-insulator waveguides. For these devices, precise tailoring of their frequency response typically requires low coupling coefficients and relatively long on-chip propagation lengths. These challenges are addressed by implementing apodization by phase-modulation and using wider strip waveguides to reduce phase noise. This design approach is demonstrated with a dispersion-less narrowband filter and a chirped bandpass filter.
Alexandre D
AD
Simard
Michael J
MJ
Strain
Laura
L
Meriggi
Marc
M
Sorel
Sophie
S
LaRochelle