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Updated: May 6, 2026
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Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
Published on: November 7, 2016
12.1K
Upconversion optical fiber microsphere sensor designed for precise measurement of FPGA temperature.
Optics Express
|August 13, 2025
Summary
A novel fiber-optic temperature sensor using upconversion nanoparticles offers precise, real-time monitoring for field-programmable gate array (FPGA) stability. This advancement enhances system reliability and energy efficiency in FPGA applications.
Area of Science:
- Materials Science
- Optical Engineering
- Semiconductor Device Physics
Background:
- Temperature is critical for FPGA stability, reliability, and efficiency.
- Accurate, real-time FPGA temperature monitoring remains a significant challenge.
- Existing methods struggle with precision and rapid response.
Purpose of the Study:
- To develop a high-precision fiber-optic temperature sensor for FPGA surface monitoring.
- To enhance the stability and reliability of FPGA systems through advanced thermal management.
- To address the need for rapid and accurate temperature measurement in FPGAs.
Main Methods:
- Fabrication of a fiber microsphere sensor with upconversion nanoparticles (UCNPs) and polymethyl methacrylate (PMMA).
- Utilized fluorescence intensity ratio (FIR) technology for temperature sensing.
- Evaluated sensor performance in the 300-350 K range and tested on an FPGA chip.
Main Results:
- Achieved a peak relative sensitivity of 1.27% K-1 at 300 K.
- Demonstrated a detection accuracy better than 0.5°C.
- Showed high consistency with the FPGA's built-in sensor and superior resistance to interference.
Conclusions:
- The developed fiber-optic sensor provides precise and stable temperature monitoring for FPGAs.
- The UCNP-enhanced microsphere structure enables high-performance thermal sensing.
- This technology holds significant potential for improving FPGA system design and operation.
