概括
一个新的紧纤维布拉格格 (FBG) 审讯器使用了一种新的解调技术和温度补偿,以实现高精度. 这种微型设备为FBG传感应用提供了更好的性能.
科学领域:
- 光子学和光学工程的工程.
- 传感器技术 传感器技术
- 仪器化 仪器化 仪器化
背景情况:
- 纤维布拉格格 (FBG) 传感器被广泛用于各种测量应用.
- 现有的FBG审讯器可能很庞大,对温度波动敏感.
- 需要紧,准确和温度稳定的FBG审讯系统.
研究的目的:
- 设计和制造一个具有高精度和稳定的紧型FBG审讯器.
- 开发一种用于精确波长测量的新型解调技术.
- 在没有常规冷却的情况下实现温度补偿.
主要方法:
- 将一个阵列波导网格 (AWG) 芯片,光二极管 (PD) 阵列和解调电路集成到一个小的形状因子 (85×60×40 mm3) 中.
- 开发和应用一种新的三点解调技术,用于中心波长的确定.
- 使用查看表 (LUT) 进行温度补偿,取代热电冷却器 (TEC).
主要成果:
- 实现了0.55 pm的波长调节稳定性和1.65 pm的分辨率.
- 在理想条件下,证明了2.7 pm的绝对波长解调精度.
- 在10°C至60°C范围内提高绝对波长调制精度至21.5分钟以内,改进了约19倍.
结论:
- 开发的紧型FBG询问器提供了高精度,稳定性和温度适应性.
- 新的解调和温度补偿技术显著提高了性能.
- 询问器的小尺寸和低功耗使其适用于各种FBG传感应用.
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