Interrogation of fiber gratings by use of low-coherence spectral interferometry of noiselike pulses

被引：118

作者：

Keren, S ^{[1
]}

Horowitz, M ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Dept Elect Engn, IL-32000 Haifa, Israel

来源：

OPTICS LETTERS | 2001年 / 26卷 / 06期

关键词：

D O I：

10.1364/OL.26.000328

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate an innovative method for a real-time interrogation of fiber Bragg gratings based on low-coherence spectral interferometry of noiselike pulses. By analyzing the spectral interference at the output of a Michelson interferometer we obtained the impulse response of the grating with a time resolution of similar to 350 fs. Using the Gabor transformation, we could directly detect nonuniform regions inside the grating and could measure the spatial dependence of the resonance wavelength along the grating. (C) 2001 Optical Society of America.

引用

页码：328 / 330

页数：3

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