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摘要
A novel cascaded structure which comprises long period fiber gratings inscribed in a single mode fiber and a Panda polarization maintaining fiber is proposed. A high sensitivity temperature sensor is obtained when the novel cascaded structure is inserted into Sagnac loop. Its response to temperature and polarization is investigated. The temperature sensitivity reaches up to -1.26 nm/degrees C. Furthermore, the experimental results show that notch 1 is almost immune to the state of polarization.
- 出版日期2014-5-15
- 单位广西师范大学
