Highly sensitive current sensor utilizing CrNi-wire supported microfiber coils

Xiaodong Xie; Jie Li; Li-Peng Sun; Long Jin; Bai-ou Guan

doi:10.1117/12.2034231

15 October 2013 Highly sensitive current sensor utilizing CrNi-wire supported microfiber coils

Xiaodong Xie, Jie Li, Li-Peng Sun, Long Jin, Bai-ou Guan

Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 89240V (2013) https://doi.org/10.1117/12.2034231
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China

Abstract

High current sensitivity is obtained based on a microfiber that is wrapping around a chrome-nickel (CrNi) wire. Due to the strong heating effect of the CrNi wire with the flowing electric current, the mode index and the loop length of microfiber are changed, resulting in the shift of resonant wavelength. The measured current responsivity is as high as 220.65nm/A², which is in two or three magnitude orders than the previously-obtained ones. We study the influence of component size to the structure performance, which is useful for future applications of current sensing or tuning devices.

Citation Download Citation

Xiaodong Xie, Jie Li, Li-Peng Sun, Long Jin, and Bai-ou Guan "Highly sensitive current sensor utilizing CrNi-wire supported microfiber coils", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89240V (15 October 2013); https://doi.org/10.1117/12.2034231

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