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Gain Spectrum Engineering in Distributed Brillouin Fiber Sensors

In this paper, a novel method for Brillouin optical time-domain analyzers exploiting the gain spectrum engineering will be proposed for the first time, to the best of our knowledge. By superimposing the Brillouin gain with two symmetric loss spectra, new degrees of freedom will be provided to engineer the spectrum of the Brillouin interaction. This leads to a Brillouin gain shape which is much more robust to noise influences than the conventional one. Simulations and experiment are in very good agreement to each other and demonstrate a more than 3-dB measurement accuracy enhancement. Since for the proposed method the frequency error is less susceptible to the fiber loss, the sensing range can be extended by up to 60%. This paper might open a new way to enhance and adapt the distributed Brillouin sensing performances by an engineering of the spectrum shape.

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Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.37 No.20 October 15 2019

No. Panggil

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Penerbit

: .,

Deskripsi Fisik

p. 5231 - 5237

Bahasa

English

ISBN/ISSN

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Klasifikasi

-

Tipe Isi

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Tipe Media

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Tipe Pembawa

-

Edisi

-

Subjek

STIMULATED BRILLOUIN SCATTERING
BRILLOUIN GAIN SPECTRUM ENGINEERING
BRILLOUIN OPTICAL TIME-DOMAIN ANALYZER
FREQUENCY ERROR

Info Detail Spesifik

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Pernyataan Tanggungjawab

Cheng Feng, Xin Lu, Stefan Preussler, Thomas Schneider

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