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RAYLEIGH SCATTERING BASED DISTRIBUTED FIBER SENSORS
RAYLEIGH SCATTERING BASED DISTRIBUTED FIBER SENSORS
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机译:基于RAYLEIGH散射的分布式光纤传感器
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摘要
A fiber sensor includes an optical fiber configured for operation at a wavelength from about 800 nm to about 1600 nm. The optical fiber includes a cladding that is defined by a fiber outer diameter and a core that is surrounded by the cladding. The core of the optical fiber has a Rayleigh scattering coefficient, αs, that is controlled by controlling a concentration of one or more dopants in the core. The Rayleigh scattering coefficient is tuned to be within a predetermined range of an optimum Rayleigh scattering coefficient for a given total length, L, of the optical fiber. The predetermined range is from about 70% of the optimum αs to about 130% of the optimum αs.
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机译:光纤传感器包括被配置用于在约800nm至约1600nm的波长下操作的光纤。光纤包括由光纤外径限定的包层和由包层围绕的芯。光纤的纤芯具有瑞利散射系数α s Sub>,该系数通过控制纤芯中一种或多种掺杂剂的浓度来控制。对于光纤的给定总长度L,将瑞利散射系数调整到最佳瑞利散射系数的预定范围内。预定范围是从最佳α s Sub>的大约70%到最佳α s Sub>的大约130%。
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