Novel measurement scheme of peak separation of side-hole fiber grating

• 来源期刊: 光电子快报（英文版）
• 学科: 农学
• 年，卷（期）: 2006,（2）
• 页码范围: 109-111
• 页数: 3页
• 分类号: S951.4+3
• 语种: 英文

摘要

There are two peaks of different polarizations in the reflection spectrum of the side-hole fiber grating and their separation interval has a linear variation along with the pressure changing while it is insensitive to the temperature.We have proposed a novel measurement scheme based on polarization detection.The detection of peak separation is achieved by measuring the two peaks' center wavelengths separately with all polarization maintaining fiber system.The side-hole fiber grating pressure sensing within the range of 0～3.5 MPa is realized successfully with the new scheme.