基于相移布喇格光纤光栅的折射率传感实验研究

doi:10.3969/j.issn.1000-1158.2011.02.08

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Abstract A fiber Bragg grating etched by HF solution is applied for refractive index sensing. The dispersion relation equation of fiber is numerically resolved. The reflected spectrum of the fiber grating during etching and sensing is theoretically obtained. The result is applied to design an optimum etching process, and a phase shift fiber Bragg grating is fabricated and applied to measure refractive index of surround solution. The fiber Bragg grating is partial and localized etched to be a phase shift fiber Bragg grating. According to the character of phase shift fiber Bragg grating, a modulation method based on reflected power is developed, the modulation system is convenient and immune to temperature change.

Key words： Metrology Fiber Bragg Grating Refractive index sensor Etched Phase shift

PACS:

TB96

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	Articles by authors
	QIU Yue
	CHEN Zhe-min

Cite this article:

QIU Yue,CHEN Zhe-min. Etched Phase Shift Fiber Bragg Grating Based Refractive Index Sensing[J]. Acta Metrologica Sinica, 2011, 32(2): 126-130.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2011.02.08 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2011/V32/I2/126

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