Reverse Ridge Silicon Strip Waveguide and Silica Slot Waveguide Structure for the Dispersion at 1550 nm

Broadband Supercontinuum Generation Using Dispersion Engineered As₂Se₃-GeAsSe-GeAsS Waveguide at 6 μm

“…A groove should be created using GeAsSe substrate by reactive ion etching process (RIE), lower and upper slabs can be fabricated through Chemical Vapour Deposition (CVD) method. The core material As 2 Se 3 can be filled in predefined trenches on the substrate using low-pressure chemical vapor deposition [3], [46], [47], [48].…”

“…Waveguides can be explained as a route map for the incident light pulses to travel through them. The characteristics of the waveguide and the interactions between incident light with the waveguide give an idea about the parameters like loss, dispersion, effective modes [1], [2], [3], [4], Nonlinear Coefficient (γ ), nonlinear index (n 2 ), group velocity dispersion (GVD), Self-Phase Modulation (SPM) [5], Cross-phase Modulation (XPM) [6], soliton generation, Four-wave mixing (FWM) and stimulated Raman scattering (SRC) [7], [8], Two-photon absorption (TPA) and Multi-photon absorption (MPA) [9], [10]. Waveguides also respond uniquely in normal and anomalous dispersion regime.…”

“…Recently, Ashok et al designed a reverse rib waveguide design for dispersion analysis. The structure shows a high negative dispersion, and the author discussed the fabrication tolerances [3]. The generation of the spectrum from waveguides depends upon the material properties, dimensions & design of waveguides, the central wavelength of input wave pumping, and power of the pulse, etc.…”