Long period fiber gratings in anti-resonant hollow core fiber

Long period fiber gratings in anti-resonant hollow core fiber

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Long period gratings, based on anti-resonant hollow core fibers (AR-HCFs), are fabricated using a high-frequency CO _2 laser pulse by carving periodic grooves.This device exhibits both axial strain and bending sensing characteristics.Benefiting Milk Pot from the low thermal sensitivity and radiation resistance characteristic of AR-HCFs, this grating can be utilized in extreme environments, particularly in the high-radiation environment, such as nuclear power plants and space Onion Soup Bowls shuttles.

Additionally, due to the characteristics of AR-HCFs, including low latency, low dispersion, low nonlinearity, and high damage threshold, this device also serves for long-distance fiber communication and high-power laser pulse shaping.