A Common Electrooptic Interface Module for Decoding Dissimilar Input Parameters

A common electro-optic interface (EO) has been designed and tested with a new optic sensor decoding architecture. The new EO module converts Wavelength Division Multiplexed (WDM) position, temperature and pressure signals using the same circuitry. This module uses the combination of Digital Signal Processing (DSP) technology along with a new temperature and pressure sensing technology. This approach results in common circuitry for processing three dissimilar inputs. The new architecture was made possible by advancements in two major areas, DSP and growth of advanced materials with tailored optic properties. This paper will discuss both the top level architecture of sensors and EO module and the performance advantages.