Adequate aging condition for fiber Bragg grating based on simple power law model

Summary form only given. In summary, we have examined thermal decay of fibre Bragg gratings (FBG) for wide temperature and time range. Decay fitted well to a simple power law, and temperature dependence of decay suggests that the accelerated aging condition can be used to test for long-term reliability. This analysis is simpler than previous models and useful for decay estimation.