Channel Routing by T-shaped Branch Waveguide with Periodic Structure

摘要

A design of signal routing circuit in microwave frequency for the internet or telecommunication system are proposed by periodic structure which is called 'photonic crystal'waveguide. Cavities are introduced in or by the waveguide for filtering and switching by making use of Fabry-Perot resonance for some carrier frequency signal. Experimental results for the model waveguide are shown to demonstrate the filtering and switching characteristics depending on arrangement of the cavity. Proposed circuit design is applicable for optical circuit for high speed network switches through scaling down, which is free from electronic-optical (E/O) or O/E conversion with time delay and is also free from signal labeling by substitutive use of the carrier frequency.