Optical multiplexer /demultiplexer having wavelength dispersion system and inputs/outputs with Fizeau interferometer having minima double frequency response multiplexer/demultiplexer.

摘要

The optical multiplexer or demultiplexer has a fibre optic input, an optical wavelength dispersion system with a fibre optic output and a two wave interferometer. The interferometer is a Fizeau interferometer having a minima at a frequency double the response of the multiplexer or demultiplexer.