Distributed fibre-optic temperature sensor for cryogenic applications based on detection of boson components of Raman light scattering

被引：7

作者：

Gorshkov, B. G. ^{[1
]}

Gorshkov, G. B. ^{[2
]}

Zhukov, K. M. ^{[3
]}

机构：

[1] Russian Acad Sci, Prokhorov Gen Phys Inst, Ul Vavilova 38, Moscow 119991, Russia

[2] PetroFibre Ltd, Klinskii Pr 7, Novomoskovsk 301664, Tula Region, Russia

[3] Lab Elect & Opt Syst Ltd, Spartakovskaya Pl 14,Stroenie 4, Moscow 105082, Russia

来源：

QUANTUM ELECTRONICS | 2020年 / 50卷 / 05期

关键词：

distributed sensor; fibre optics; measurements of low temperatures; OPTICAL-FIBER; RESOLUTION; QUARTZ;

D O I：

10.1070/QEL17238

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The possibility of designing a distributed fibre-optic sensor, allowing one to measure cryogenic temperatures (to liquid nitrogen boiling point), is experimentally demonstrated. The principle of operation of the sensor is based on measuring the intensity of boson peaks of Raman scattering in a fibre material, which are spaced by 1 to 3 THz from the probe frequency. The measurements are performed using a single-mode telecommunication fibre with a 15-mu m-thick polyimide coating. The probe wavelength is 1.55 mu m, the sensor spatial resolution is 4 m, and the averaging time is 60 s. Experiments are carried out in the temperature range of 75.6 - 79.6 K, with a temperature resolution of 0.5 K.

引用

页码：506 / 509

页数：4

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