ArticleScientific reports2026
Chip-based high-precision fluorescent fiber-optic temperature sensor.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Fluorescent fiber-optic temperature sensors have found widespread applications owing to their high sensitivity and broad temperature-sensing range. However, the noise induced by numerous discrete components remains challenging to address via algorithmic improvements. In this paper, a chip integrating both readout circuit and LED driver is designed and fabricated in 0.18-µm CMOS process. Based on this chip, an integrated fluorescent fiber-optic temperature sensor is built. Compared with its discrete counterparts, the integrated sensor exhibits a 12.18% reduction in noise voltage. With identical fluorescence lifetime extraction algorithm, the integrated sensor achieves a 56.47% improvement in fluorescence lifetime accuracy. Moreover, the integrated sensor exhibits a temperature resolution of 0.056 °C, representing a 39.13% improvement over the discrete sensor. Meanwhile, the temperature measurement range spans from - 20 °C to 120 °C, with an average temperature sensitivity of 0.0064 ms°C
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