Investigation on mechanism of distributed fiber quantum sensing based on Raman scattering

Abstract

Abstract: Due to the deficiency of classic electromagnetic theory in characterizing the scattering intensity, a quantum mechanical model based on spontaneous Raman scattering is proposed and deduced, where matter and electromagnetic waves are dealt with separately, while the interaction between them are considered as perturbations. The theories of optical fiber quantum sensing are studied through the analysis of scattering in fiber core. On this basis, the principle of distributed quantum sensor based on Raman scattering is studied. And a model of fiber quantum temperature sensing based on Raman scattering is then proposed. A distributed fiber quantum sensing experimental system is putted up in our lab. The technical parameters of the distributed quantum temperature sensing experimental system are measured, and the performances of the system are experimentally verified. Results show that the distributed fiber quantum temperature sensing system can accurately locate the monitoring points, and the temperature measurement accuracy is high.

Key words: quantum optics, distributed fiber quantum sensing, transition probability, spontaneous Raman scattering

TAO Zaihong1,2， WANG Tingting1,2， KONG Chunxia3. Investigation on mechanism of distributed fiber quantum sensing based on Raman scattering[J]. Chinese Journal of Quantum Electronics.

References

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