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1. 发明申请

WO2013131085A1 TDM-AND WDM-BASED FBG SENSOR ARRAY SYSTEM 审中-公开
标题翻译：基于TDM和WDM的FBG传感器阵列系统
公开(公告)号：WO2013131085A1
公开(公告)日：2013-09-06
申请号：PCT/US2013/028871
申请日：2013-03-04
申请人： OFS FITEL, LLC
发明人： HOLLAND, William, R. , LI, Yaowen , NICHOLSON, Jeffrey, W. , SUN, Yingzhi , ZHU, Benyuan
IPC分类号： G01K11/32
CPC分类号： G01D5/35364 , G01K11/32
摘要： In a TDM- and WDM-based FBG sensor array system, a source emits a light covering a selected wavelength range. The light is amplified and then used to generate a series of pulses that are fed into an array of sensor gratings. The propagation of a pulse through the sensor array results in a time-domain-multiplexed output, comprising a series of output pulses in which each output pulse comprises a reflection of the input pulse at a respective grating in the sensor array. Raman amplification is used to amplify both the pulse input into and the time-domain multiplexed output from the sensor array, which is then coupled into an output processing stage for receiving the sensor output and for reconstructing the wavelength output of each grating in the sensor array. The wavelength change for each grating is then used to calculate a physical parameter(s) to be measured, such as temperature and/or strain.
摘要翻译：在基于TDM和WDM的FBG传感器阵列系统中，源发射覆盖所选波长范围的光。光被放大，然后用于产生馈送到传感器光栅阵列中的一系列脉冲。脉冲传播通过传感器阵列导致时域多路复用输出，其包括一系列输出脉冲，其中每个输出脉冲包括传感器阵列中相应光栅处的输入脉冲的反射。拉曼放大用于放大来自传感器阵列的脉冲输入和时域多路复用输出，然后耦合到输出处理级，用于接收传感器输出并重建传感器阵列中每个光栅的波长输出。然后使用每个光栅的波长变化来计算要测量的物理参数，例如温度和/或应变。

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