ENVIRONMENTALLY STABLE ATHERMALIZED OPTICAL FIBER GRATING DEVICE AND METHOD OF MAKING A STABILIZED DEVICE

摘要

The invention includes environmentally stable athermalized optical fiber gratings and methods of making such a stabilized optical waveguide fiber grating. Stable humidity-resistant athermalized fiber Bragg gratings (19) are provided by stabilizing a negative thermal expansion substrate (20) and utilizing a durable frit (24) to attach the fiber Bragg grating to the substrate.