METHOD AND DEVICE FOR FABRICATING VOLUME BRAGG GRATINGS

摘要

A system for recording multiple volume Bragg gratings (VBGs) in a photo thermo- refractive material is configured to implement a method which provides for irradiating the material by a coherent light through a phase mask. The system has a plurality of actuators operative to displace the light source, phase mask and material relative to one another so as to mass produce multiple units of the material each having one or more uniformly configured VBGs.