摘要
A digital signal processing chip based portable demodulation system for the measurement of optical fiber extrinsic Fabry-Perot Interferometric sensors is demonstrated. In order to satisfy the requirements of high-speed and high-precision demodulation applications, a method which measures the transmission wavelength of the EFPI is proposed. By using a DSP, the reflected optical spectrum of an EFPI can be tracked, and the transmission wavelength can be calculated. Based on a calibration method, the measurand can be intergraded. The results of the experiment show that a wavelength resolution of 2 pm can be reached and the dynamic measurement range is as high as 50 nm.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 485-488 |
| 页数 | 4 |
| 期刊 | Guangxue Jishu/Optical Technique |
| 卷 | 41 |
| 期 | 6 |
| 出版状态 | 已出版 - 1 11月 2015 |
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Zhang, Y., Xiao, S., Jiang, Y., & Jiang, Y. (2015). A DSP based portable demodulator for the measurement of optical fiber EFPI sensors. Guangxue Jishu/Optical Technique, 41(6), 485-488.