Computer controlled tuneable optical filter based on a fibre bragg grating

Abstract

This paper describes the theory, design and implementation of an optical tuneable filter, controlled by LabView through an USB connection. The tuneable filter system is based on a piezoelectric actuator which works by compressing a fiber Bragg grating. A high-voltage amplifier was also developed for driving the actuator. The optical filter is suitable for channel demultiplexing within WDM systems.