Bandpass integrated Bragg gratings in silicon-on-insulator with well-controlled amplitude and phase responses

Simard, Alexandre D. and Strain, Michael J. and Meriggi, Laura and Sorel, Marc and LaRochelle, Sophie (2015) Bandpass integrated Bragg gratings in silicon-on-insulator with well-controlled amplitude and phase responses. Optics Letters, 40 (5). pp. 736-739. ISSN 0146-9592

[img] PDF (Simard-etal-OL-2015-Bandpass-integrated-bragg-gratings-in-silicon-on-insulator-with-well-controlled-amplitude)
Simard_etal_OL_2015_Bandpass_integrated_bragg_gratings_in_silicon_on_insulator_with_well_controlled_amplitude.pdf
Accepted Author Manuscript

Download (836kB)

    Abstract

    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.