Author(s): Wang, L (Wang, Lu); Hao, TF (Hao, Tengfei); Li, GY (Li, Guangyi); Li, M (Li, Ming); Zhu, NH (Zhu, Ninghua); Li, W (Li, Wei)

Source: JOURNAL OF LIGHTWAVE TECHNOLOGY Volume: 40 Issue: 15 Pages: 5322-5327 DOI: 10.1109/JLT.2022.3174697 Published: AUG 1 2022

Abstract: We report a novel temperature sensor based on a Fourier domain mode-locked optoelectronic oscillator (FDML OEO) and temperature-to-time mapping. In the proposed scheme, a narrow bandpass electrical filter is inserted into the FDML OEO cavity. The temperature information is mapped to the time interval of the output pulses due to the temperature-sensitive bidirectional scanning property of the FDML OEO. Compared with other OEO-based temperature sensors, the proposed scheme avoids the needs of wideband electrical spectrum analyzers, since the temperature-sensitive output pulses can be interrogated using a low-speed oscilloscope working under sub-Nyquist sampling condition. In the proof-of-concept experiment, a high sensitivity of 8.166 mu s/degrees C and resolution of 0.03 degrees C is achieved, demonstrating a good temperature sensing performance.

Accession Number: WOS:000831172200046

Author Identifiers:

Author        Web of Science ResearcherID        ORCID Number

Li, Ming                  0000-0001-8959-9619

Wang, Lu                  0000-0001-8614-597X

Li, Guangyi                  0000-0003-2152-8114

ISSN: 0733-8724

eISSN: 1558-2213

Full Text: https://ieeexplore.ieee.org/document/9773963