Journal
JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 40, Issue 19, Pages 6576-6582Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2022.3193777
Keywords
Probes; Signal to noise ratio; Reflectivity; Gain; Optical reflection; Detectors; Optical fiber sensors; Electromagnetic measurement; electro-optic effects; optical fiber sensors; signal to noise ratio
Funding
- Enhancement of Measurement Standards and Technologies in Physics through the Korea Research Institute of Standards and Science [KRISS-2022-GP2022-0002]
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An approach to improve the signal-to-noise ratio (SNR) in a microwave electric field sensor system using a polarization maintaining fiber (PMF) probe with an electro-optic (EO) crystal is proposed and experimentally validated. By using a newly fabricated PMF probe with parameters close to the optimal design, an SNR improvement of 2.5 dB compared to the previous probe was successfully demonstrated in microwave electric field measurements.
We propose an approach to elevate the signal-to-noise ratio (SNR) in a microwave electric field sensor system with a polarization maintaining fiber (PMF) probe incorporated with an electro-optic (EO) crystal. The optimal probe parameters were determined to obtain the best SNR based on the suggested approach, which was validated experimentally. Using a newly fabricated PMF probe with parameters close to the optimal design, an SNR improvement of 2.5 dB compared to our previous probe was successfully demonstrated in microwave electric field measurements.
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