6Assembly‐Free Micro‐interferometer‐Based Optical Fiber Sensing Technology

Assembly‐free optical fiber sensors can be realized by creating micro‐interferometers on optical fiber directly without assembling discrete multiple components. As a result, the robustness, thermal, and mechanical stability of such devices are significantly improved. This chapter describes the design, fabrication, and applications of assembly‐free micro‐interferometer‐based optical fiber sensors.

6.1 Assembly‐Free In‐Fiber Micro‐interferometer

All‐fiber‐optic interferometric sensors have attracted much interest for wide applications in the detections of temperature, pressure, refractive index, strain, etc. owing to their advantages such as compact size, light weight, ...

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