Linear absorption coefficient of in-plane graphene on a silicon microring resonator

Abstract

We demonstrate that linear absorption coefficient (LAC) of a graphene-silicon hybrid waveguide (GSHW) is determined by the optical transmission spectra of a graphene coated symmetrically coupled add-drop silicon microring resonator (SC-ADSMR), of which the value is around 0.23 dB/um. In contrast to the traditional cut-back method, the measured results are not dependent on the coupling efficiency of the fiber tip and the waveguide. Moreover, precision evaluation of graphene coated silicon microring resonator (SMR) is crucial for the optoelectronic devices targeting for compact footprint and low power consumption.

7 pages, 6 figures, published in Optics Express (2016)

References in corpus (3)

• The electronic properties of graphene
• Electrochemically Top Gated Graphene: Monitoring Dopants by Raman Scattering
• Effective electro-optical modulation with high extinction ratio by a graphene-silicon microring resonator

Cited by in corpus (7)

• Enhanced four-wave-mixing with 2D layered graphene oxide films integrated with CMOS compatible micro-ring resonators
• Theoretical design study of FWM in silicon nitride waveguides with integrated graphene oxide films
• Enhanced spectral broadening via self-phase modulation with femtosecond optical pulses in silicon nanowires integrated with 2D graphene oxide films
• Novel functions in silicon photonic chips incorporated with graphene oxide thin films
• Enhanced nonlinear optical figure-of-merit at 1550nm for silicon nanowires integrated with graphene oxide layered films
• Integrated nanophotonic polarizers in silicon waveguides and ring resonators using graphene oxide 2D films
• Integrated microring resonator and waveguide polarizers based on partially photo-reduced 2D graphene oxide thin films