Symmetric Lossless X Coupler
The X Coupler is a basic component used in many kinds of optical circuits. Here its properties are analysed by theoretical means, and also by detailed simulation of…
Silicon Nanotapers for Fiber-to-Waveguide Coupling
Two approaches for coupling light on a high-confinement chip with sub-micron waveguides are gratings or taper couplers. This application example…
Plasmonic Waveguide Filters with Nanodisk Resonators
Surface plasmon polaritons (SPPs) are waves trapped on the surfaces of metals owing to the interaction between the free electrons in a metal and…
Power Combiner
Optical power in two or more waveguides can be combined onto a single waveguide…
VFEM Accuracy and Advantages
As optical systems move towards an integrated platform, the modelling of high refractive index contrast, sub-wavelength dimension…
Plasmon Polaritons – Vector Finite Element Method
The large negative electric permittivities of noble metals permit the design of sub-wavelength optical guiding structures…
Hollow Core Fiber – Vector Finite Element Method
Hollow core fibers guide light by using a photonic bandgap structure in place of a traditional low index cladding material…
Plasmonic Arrays
Plasmonic nano-hole arrays are an interesting avenue of research because of their highly sensitive transmission properties. Incorporating the already strong light-matter interaction of surface plasmons into a periodic structure allows…