Dual-Wavelength Differential Detection of FBGs Using a Frequency-Scanning Pulsed Laser
Dual-Wavelength Differential Detection of FBGs Using a Frequency-Scanning Pulsed Laser
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DOI：
10.1109/lpt.2022.3210929
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发表时间：
2022-12
影响因子：
2.6
通讯作者：
K. Kuroda;Ui Inaba
中科院分区：
文献类型：
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作者：
K. Kuroda;Ui Inaba
报道了光纤光栅的双波长差分检测。采用直接调制的分布反馈激光器阵列作为频率扫描脉冲光源。四个100纳秒的脉冲与6.5 GHz的频率漂移和相同的强度产生的列车。询问两个串联连接的布拉格光栅使用的脉冲序列，我们表现出的高灵敏度测量和宽的测量范围的选择性，和扩展到时分复用系统的可能性与一个简单的设置。
The dual-wavelength differential detection of fiber Bragg gratings is reported. A directly modulated distributed-feedback laser array is used as a frequency-scanning pulsed light source. Trains of four 100-ns pulses with a frequency drift of 6.5 GHz and the same intensity are generated. Interrogating two serially connected Bragg gratings using the pulse trains, we show the selectivity of the high-sensitivity measurement and the wide measurement range, and the possibility of expansion to time-division multiplexing systems with a simple setup.