Multicomponent Photonic Glass for Temperature Insensitive Fiber Probe

摘要: The construction of fiber Bragg grating (FBG) unit is great technological importance for various distributed remote sensing applications. A major challenge the effective suppression its temperature sensitivity without additional complex structure or back-end calculation. Here we present a topological engineering strategy notably reducing FBG in multicomponent glass system. theoretical analysis indicates that insensitive can be realized via introduction self-compensation mechanism, based on combination positive thermal expansion and negative thermal-optic effect. Guided by theory analysis, two typical fibers are constructed inscribed femtosecond laser into core. Sensing tests show lowest reaches to ∼8.3 pm/ °C, which low than standard commercial device (∼13.7 pm/ °C). findings described here suggest an attractive opportunity constructing new class probe with controllable optical response glass.