Silica microbeams for tunable Bragg gratings

摘要

Microbeams integrated with optical components have found applications in telecoms and sensing applications[1][2]. We present fabrication, characterisation and modelling of silica microbeams containing an integration optical waveguide and Bragg reflectors. These optical elements, fabricated using direct UV writing process, have applications in telecoms and sensing[3]. Thermal tuning of the integral Bragg gratings is enhanced and the energy requirements greatly reduced by a factor of 50.