Enhanced Refractive Index Sensor Based on Etched Coreless Fiber

Noor Hamza presents experimental data for a high-sensitivity refractive index sensor using a single-mode–multimode–single-mode fiber structure. The sensor performance was examined with coreless fiber diameters of 100 and 50 μm and three different tune lengths of 20, 25, and 30 mm, achieved via chemical etching with hydrofluoric acid. The highest sensitivity attained was about 1012 nm/RIU with a 50 μm diameter.

Use Cases

• Calibrating optical sensors based on spectral shift data mentioned in the description
• Optimizing fiber sensor design based on coreless fiber diameter and length parameters
• Benchmarking sensor sensitivity for refractive index measurement applications

Strengths

• Reports a specific, high sensor sensitivity of about 1012 nm/RIU
• Compares performance across defined experimental parameters: two diameters (100 and 50 μm) and three tune lengths (20, 25, 30 mm)

Limitations

• Row count is unknown, which may limit suitability assessment
• Column-level documentation is absent; field semantics must be inferred after download

Provenance

Source

paperswithcode

Collection Method

Experimental demonstration using chemical etching technique based on hydrofluoric acid plunging.