传感技术学报2025，Vol.38Issue(12)：2161-2165,5.DOI:10.3969/j.issn.1004-1699.2025.12.008
基于射频调制-解调的光纤环干涉仪双参量传感技术研究
Fiber Optic Ring Interferometer Assisted Dual-Parameter Sensing Technique Based on Radio Frequency Modulation-Demodulation
摘要
Abstract
A radio frequency(RF)modulation-demodulation based fiber optic ring interferometer(FORI)sensing technique is proposed for dual-parameter high-precision crosstalk-free sensing.At low modulation frequencies,FORI is insensitive to temperature changes,while ex-hibiting flexible adjustable sensitivity to loss with a linear transmittance sensitivity of 0.282 rad.By selecting specific modulation frequen-cies,linear or maximum sensitivity of loss can be achieved.At high modulation frequencies,through utilizing the cumulative effect of fre-quency shift,the temperature sensing is realized by tracking the frequency of zero phase shift point,with the sensitivity of-17.47 kHz/℃.Experimental results show that this method successfully achieves the simultaneous measurement of transmittance and temperature without crosstalk.This RF modulation-demodulation based FORI sensing technique demonstrates potential applications in multi-parameter sensing fields,providing new ideas for the development of high-precision,multi-functional fiber optic sensing systems.关键词
光纤传感器/双参量传感/光纤环干涉仪/相移放大/射频调制/频率响应Key words
fiber optic sensor/dual-parameter sensing/fiber optic ring interferometer/phase shift amplification/radio frequency modula-tion/frequency response分类
信息技术与安全科学引用本文复制引用
张洁,李阳,王星凯,王鑫,宁浩..基于射频调制-解调的光纤环干涉仪双参量传感技术研究[J].传感技术学报,2025,38(12):2161-2165,5.基金项目
国网新疆电力有限公司科技项目(5230XT24000J) （5230XT24000J）
