Random fiber laser based on a partial-reflection random fiber grating for high temperature sensing

Jiancheng Deng, D. V. Churkin, Zuowei Xu, Xuewen Shu

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

Аннотация

A stable single wavelength random fiber laser (RFL) with a partial-reflection random fiber grating (PR-RFG) for high temperature sensing is proposed and demonstrated for the first time, to the best of our knowledge. The PR-RFG is fabricated with the help of a femtosecond laser, with its highest reflection peak significantly higher than all other reflection peaks, which can ensure the stability of this filter-free RFL. Theoretical calculations also show that such a PR-RFG should be designed with reflectivity in the range of ∼30%−90% to obtain one reflection peak significantly higher than other peaks. The threshold of this laser is only 6.4 mW. In addition, the RFL realizes temperature sensing in the range from 25C to 500C and has an optical signal-to-noise ratio of up to 70 dB.

Язык оригиналаанглийский
Страницы (с-по)957-960
Число страниц4
ЖурналOptics Letters
Том46
Номер выпуска5
DOI
СостояниеОпубликовано - 1 мар 2021

Предметные области OECD FOS+WOS

  • 1.03.UH ФИЗИКА, АТОМНАЯ, МОЛЕКУЛЯРНАЯ И ХИМИЧЕСКАЯ
  • 1.03.SY ОПТИКА

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