Achieving a new generation of enhanced sensors requires the development of structures that result from the fusion of different concepts and effects. In this paper, we combine a special strain sensing structure with an optical sensitivity magnification, through harmonics of the Vernier effect. The recently demonstrated harmonics of the Vernier effect result from increasing the optical path length (OPL) of one of two interferometers by multiple times the OPL of the other interferometer. The effect generates higher magnification factors, proportional to the order of the harmonics. The sensing structure is demonstrated for strain and temperature discrimination, allowing compensation for temperature fluctuations. We explore the complex case of the optical Vernier effect in series, where both interferometers are used as sensing interferometers (no reference interferometer is used). Our results also suggest that the magnification enhancement provided by harmonics of the Vernier effect for a configuration in series is the same as for a configuration in parallel: the magnification factor increases proportionally to the order of the harmonics.

要实现新一代的增强型传感器，就需要开发融合了不同概念和效果的结构。在本文中，我们通过游标效应的谐波将特殊的应变感应结构与光学灵敏度放大倍率结合在一起。最近证明的游标效应谐波是由于两个干涉仪中一个干涉仪的光路长度（OPL）增加了另一个干涉仪的OPL的倍数而产生的。该效果会产生更高的放大倍数，与谐波的数量级成正比。演示了感应结构的应变和温度区分，可以补偿温度波动。我们探讨了光学游标效应的复杂情况，将两个干涉仪都用作感应干涉仪（不使用参考干涉仪）。我们的结果还表明，对于串联配置，游标效应谐波提供的放大倍率与并联配置相同：放大倍数与谐波次数成正比。