DOAJ Open Access 2025

High-Resolution Interferometric Temperature Sensor Based on Two DFB Fiber Lasers with High-Temperature Monitoring Potential

Mikhail I. Skvortsov Kseniya V. Kolosova Alexander V. Dostovalov Evgeniy V. Golikov Alexander A. Vlasov +7 lainnya

Abstrak

A high-resolution temperature sensor using the beat frequency measurement between the modes of two DFB fiber lasers is presented. The laser cavities are formed by the femtosecond inscription technique in a highly Er/Yb co-doped phosphosilicate fiber with low optical losses and compact design. The experimental results show a sensitivity of 1 GHz/°C, leading to a temperature resolution of 0.02 °C restricted by the thermistor used in the experiment. The maximum possible resolution determined by the laser linewidth is estimated as 2 × 10<sup>−6</sup> °C. The operation of such a sensor at high temperatures (≈750 °C) with the possibility of further temperature increase is demonstrated. The combination of high resolution and broad temperature range makes the sensor attractive for various applications, especially in high-temperature monitoring.

Topik & Kata Kunci

Applied optics. Photonics

Penulis (12)

Mikhail I. Skvortsov

Kseniya V. Kolosova

Alexander V. Dostovalov

Evgeniy V. Golikov

Alexander A. Vlasov

Sofia R. Abdullina

Andrey A. Rybaltovsky

Denis S. Lipatov

Aleksey S. Lobanov

Mikhail E. Likhachev

Olga N. Egorova

Sergey A. Babin

Format Sitasi

APA MLA BibTeX

Skvortsov, M.I., Kolosova, K.V., Dostovalov, A.V., Golikov, E.V., Vlasov, A.A., Abdullina, S.R. et al. (2025). High-Resolution Interferometric Temperature Sensor Based on Two DFB Fiber Lasers with High-Temperature Monitoring Potential. https://doi.org/10.3390/photonics12101019

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Informasi Jurnal

Tahun Terbit: 2025
Sumber Database: DOAJ
DOI: 10.3390/photonics12101019
Akses: Open Access ✓