Design and characterization of a 3dB slotted waveguide coupler / Hafizah Rosli

An optical waveguide is a physical structure that guides electromagnetic waves in the optical spectrum. Common types of optical waveguides include optical fibre and rectangular waveguides. Optical waveguides are used as components in integrated optical circuits or as the transmission medium in local and long haul optical communication systems. Optical waveguides have several geometries such as planar, strip or fibre waveguides. It has two different modes which are single-mode and multi-mode. Different refractive index also makes them different from each other. Mostly, optical waveguides are made of material such as glass, polymer or semiconductor. A conventional Silica optical waveguide power splitter based on directional coupler is one of an important waveguide for producing an optical network. Unfortunately, its size would normally be in cm long. Nowadays, small gadgets are highly demanded. People start choosing smaller products than large products produced last time. Hence, compact component also became highly demanded. In order to overcome the weakness in size of conventional Silica optical waveguide power splitter, 3dB slotted waveguide coupler which is expecting to be more compact than conventional Silica waveguide will be investigated. Then, its polarization effects such as TE and TM will be investigated. In that case, 3dB slotted waveguide will be designed, and its input and output will then be characterized.