Theoretical design study of FWM in silicon nitride waveguides with integrated graphene oxide films

Abstract

We theoretically investigate and optimize four-wave mixing (FWM) in silicon nitride (SiN) waveguides integrated with two-dimensional (2D) layered graphene oxide (GO) films. Based on extensive previous measurements of the material parameters of the GO films, we perform detailed analysis for the influence of device parameters including waveguide geometry, GO film thickness, length, and coating position on the FWM conversion efficiency (CE) and conversion bandwidth (CB). The influence of dispersion and photo-thermal changes in the GO films is also discussed. Owing to the strong mode overlap between the SiN waveguides and the highly nonlinear GO films, FWM in the hybrid waveguides can be significantly enhanced. We obtain good agreement with previous experimental results and show that by optimizing the device parameters to balance the trade-off between Kerr nonlinearity and loss, the FWM CE can be improved by as much as ~20.7 dB and the FWM CB can be increased by ~4.4 folds, relative to the uncoated waveguides. These results highlight the significantly enhanced FWM performance that can be achieved in SiN waveguides by integrating 2D layered GO films.

8 pages, 8 figures, 52 references

References in corpus (11)

• All-optical signal processing platforms for CMOS compatible integrated nonlinear optics
• Integrated micro-comb sources for quantum optical applications
• Optical data transmission at 44Tb/s and 10 bits/s/Hz over the C-band with standard fibre and a single micro-comb source
• Phase-sensitive optical pulse characterization on a chip via Spectral Phase Interferometry for Direct Electric-Field Reconstruction (SPIDER)
• Graphene oxide films for ultra-flat optics and linear and nonlinear integrated photonic circuits
• Enhanced four-wave-mixing with 2D layered graphene oxide films integrated with CMOS compatible micro-ring resonators
• Integrated polarizers based on graphene oxide in waveguides and ring resonators
• Laser Cavity-Soliton Micro-Combs
• Integrated Fabry-Perot cavities as a mechanism for enhancing micro-ring resonator performance
• Electrically Tunable Optical Nonlinearities in Graphene-Covered SiN Waveguides Characterized by Four-Wave Mixing
• Linear absorption coefficient of in-plane graphene on a silicon microring resonator

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• Enhanced self-phase modulation in silicon nitride waveguides integrated with 2D graphene oxide films
• Enhanced spectral broadening via self-phase modulation with femtosecond optical pulses in silicon nanowires integrated with 2D graphene oxide films
• Supercontinuum generation in 2D graphene oxide film coated SiN waveguides
• Spectral Shaping with Integrated Self-Coupled Sagnac Loop Reflectors
• Photo-thermal tuning of graphene oxide coated integrated optical waveguides
• Enhancing the third-order optical nonlinear performance in CMOS devices with integrated 2D graphene oxide films
• Ultra-high bandwidth fiber-optic data transmission with a single chip source
• Design of microring resonators integrated with 2D graphene oxide films for four-wave mixing
• Graphene oxide for high performance nonlinear optics in integrated nanowires
• High 3rd Order Optical Kerr Nonlinearity of PdSe2 Di-chalcogenide 2D Films for Nonlinear Photonic Chips
• Graphene oxide 2D films integrated with nanowires and ring resonators for enhanced nonlinear optics