Super-continuum generation of an optical pulse in a silicon micro-ring resonator

Abstract

The super-continuum (SC) system of an optical pulse within a silicon micro-ring resonator is designed and simulated. A self-phase modulation within the device is a key process for an efficient SC generation, which can be used to create and recover the required maximum output SC peak power signals. The waveguide length is L₁ = L₃ = 0.15-cm-long, and L_R = 15.5 µm, where in the simulation the input peak power of both input and add ports is 50 W, which is a 50 fs pulse width. The coupling coefficients are κ₁ = 0.5 and κ₂ = 0.9, with the dispersion of ridge waveguide and ring ridge waveguide are D = +32.71 and D = −43.25 ps nm⁻¹ km⁻¹, respectively at λ₀ = 1550 nm from, which the broadband SC output signals when the output of −30 dB with spectral width of 470 nm, and the maximum output peak power of 48.3 W are obtained. Moreover, the transition coupling coefficients, κ₂ of an add-drop ridge waveguide can be controlled to obtain the maximum output peak power at the trough port outputs, in which the output power is increased from 13 to 48 W with −30 dB output when the spectral width is increased from 453 to be 470 nm. The drop port output power is increased from 1 to 14 W when the spectral width is increased from 342 to 417 nm. From which the input signal is applied only to the input port. The obtained results can be useful for micro-waveguide usage, where the applications of such as broadband and self-pumping light sources, spectroscopy and medical imaging can be realized.