Si-rich SiNx based Kerr switch enables optical data conversion up to 12 Gbit/s
Journal
Scientific Reports
Journal Volume
5
Date Issued
2015
Author(s)
Lin, G.-R.
Su, S.-P.
Wu, C.-L.
Lin, Y.-H.
Huang, B.-J.
Wang, H.-Y.
Tsai, C.-T.
Wu, C.-I.
Abstract
Silicon photonic interconnection on chip is the emerging issue for next-generation integrated circuits. With the Si-rich SiNx micro-ring based optical Kerr switch, we demonstrate for the first time the wavelength and format conversion of optical on-off-keying data with a bit-rate of 12 Gbit/s. The field-resonant nonlinear Kerr effect enhances the transient refractive index change when coupling the optical data-stream into the micro-ring through the bus waveguide. This effectively red-shifts the notched dip wavelength to cause the format preserved or inversed conversion of data carried by the on-resonant or off-resonant probe, respectively. The Si quantum dots doped Si-rich SiNx strengthens its nonlinear Kerr coefficient by two-orders of magnitude higher than that of bulk Si or Si3N4. The wavelength-converted and cross-amplitude-modulated probe data-stream at up to 12-Gbit/s through the Si-rich SiNx micro-ring with penalty of -7 dB on transmission has shown very promising applicability to all-optical communication networks.
SDGs
Type
journal article