Time- and Wavelength-Division Multiplexed Heterodyne Detection Applied to FBG Interrogation

被引：1

作者：

Kuroda, Keiji ^{[1
]}

Matsumoto, Takahiro ^{[1
]}

Oka, Hisaki ^{[1
]}

机构：

[1] Kitasato Univ, Sch Sci, Dept Phys, Sagamihara, Kanagawa 2520373, Japan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2024年 / 36卷 / 05期

基金：

日本学术振兴会;

关键词：

Distributed-feedback laser; fiber Bragg grating; time-division multiplexing; wavelength-division multiplexing; FIBER; NETWORK; SYSTEM;

D O I：

10.1109/LPT.2024.3354892

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：

We report time- and wavelength-division multiplexing of fiber Bragg gratings interrogation based on heterodyne detection. A directly modulated distributed-feedback laser array is used as a multi-wavelength, frequency scanning, pulsed-light source. A heterodyne detection technique is used to increase the signal-to-noise ratio of weak reflections. Reflection spectra of 10 fiber Bragg gratings with three different wavelengths are simultaneously observed with high signal-to-noise ratios.

引用

页码：317 / 320

页数：4

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