A Michelson interferometer(MI) composite cavity fiber laser sensing system based on radio frequency(RF) interrogation is proposed and experimentally demonstrated. The system down-converts the traditional MI light freq...A Michelson interferometer(MI) composite cavity fiber laser sensing system based on radio frequency(RF) interrogation is proposed and experimentally demonstrated. The system down-converts the traditional MI light frequency detection to RF detection, which improves the stability of the system. The optic fiber MI is placed in the laser resonator to form a composite cavity structure, which greatly improves the sensitivity of beat frequency signal demodulation.展开更多
基金This work was supported by the National Natural Science Foundation of China(NSFC)(No.62075057)the Program for Innovative Research Team(in Science and Technology)in University of Henan Province(No.21IRTSTHN011).
文摘A Michelson interferometer(MI) composite cavity fiber laser sensing system based on radio frequency(RF) interrogation is proposed and experimentally demonstrated. The system down-converts the traditional MI light frequency detection to RF detection, which improves the stability of the system. The optic fiber MI is placed in the laser resonator to form a composite cavity structure, which greatly improves the sensitivity of beat frequency signal demodulation.
