Jun 20, 2026
The silica-based optical fibers have high transmission in the visible range and they are widely used for transmitting light from plasma to detectors in the modern thermonuclear facilities. The
Nov 11, 2025
Fiber-optic bolometers (FOBs) designed for plasma radiation measurement in magnetically confined fusion environments have been previously developed and tested at the DIII-D tokamak. These FOBs
Jan 18, 2026
Rogowski coil, Hall sensor, polarimetric fi ber-optic current sensor, Spun optical fi ber. Introduction. Special galvanic decoupling anti-noise sensors (current sensors) are required to record the shape of
May 04, 2026
Furthermore, many special novel optical fiber structures reported in recent years are summarized, which have been used in various kinds of plasmonic sensing work. Then, the fiber
Dec 09, 2025
Abstract and Figures In this paper, we assess the effect of cryostat bridge vibrations on the plasma current measurement accuracy when using a
Nov 09, 2025
Fiber optic current sensors, based on the Faraday Effect, are one of the best choices to measure the plasma current in a steady-state discharge. Such an fiber-optic current sensor (FOCS)
Sep 04, 2025
Application of the plasma methods enhancing sensing properties of various optical fiber sensing structures, namely long-period gratings, intermodal
Aug 10, 2025
This research incorporates a finite element modeling (FEM) approach to investigate thermo-electric-mechanical coupled behavior in the spark plasma sintering (SPS) process to embed
Jul 17, 2025
In this paper, we assess the effect of cryostat bridge vibrations on the plasma current measurement accuracy when using a fiber optic current sensor (FOCS) in ITER. The impact of vibrations on the
Apr 08, 2026
A simple optical fiber sensor based on localized surface plasmon resonance was constructed for direct and rapid measurement of thyroglobulin (Tg).
May 22, 2026
We report a multichannel fiber-optic bolometer system intended for measuring the plasma radiation from the fusion chamber. The system consists of
Aug 27, 2025
Many interesting optical fiber sensing devices can be fabricated using plasma-based deposition and surface processing of thin films . Following section reviews the range of plasma
Nov 04, 2025
Optical fiber sensors based on surface plasma technology have many unique advantages in specific applications such as extreme environmental
Feb 07, 2026
Abstract: For plasma current sensing in next-generation Tokamak thermonuclear fusion reactors like ITER, optical fibre-based polarimetric sensors (also called FOCS for Fibre-Optics Current Sensor)
Aug 09, 2025
1. Introduction The Fibre Optic Current Sensor (FOCS) at ITER is a system that will provide back-up ITER plasma current measurements in steady-state regimes using a sensing fibre located
Nov 08, 2025
Performance of two polarimetric Fibre Optic Current Sensors (FOCSs) installed on JET is analysed. In both systems spun fibres with a low linear birefringence are used for the sensing part.
Jan 03, 2026
Experimental development of a compact optical emission detector based on the assembly of a polymer-metal and a standard silica fiber is
Apr 20, 2026
Due to the benefits of the high sensitivity, real-time response, no labeling requirement, and good selectivity, fiber optic sensors based on surface
Mar 01, 2026
We have tested the influence of vibrations and shocks on fiber-optic current sensor. In EAST experiment, the FOCS has achieved the plasma current measurement up to 800 kA.
Sep 25, 2025
Based on the fabrication technology and sensing principle of the classical optical fiber platform, the multi-parameter detection and sensing performance improvement of the novel special
Aug 08, 2025
An experimental fiber optic current sensor has been designed and realized. The advantage of the proposed method was proved considering to the sensitivity improvement.
Jun 08, 2026
Photonic Doppler velocimetry tracks motion during high-speed, single-event experiments using telecommunication fiber components. The same technology can be applied in situations where
Sep 04, 2025
Fig. 1 (a) Fiber-optic bolometer system; (b) Microscope image of a sensor head; (c) A typical measured reflection spectrum; (d) Experimental setup for testing the bolometer system; (e) Bolometer signal in
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