A high sensitivity refractometer based upon a long period grating Mach-Zehnder interferometer

被引：162

作者：

Allsop, T

Reeves, R

Webb, DJ

Bennion, I

Neal, R

机构：

[1] Aston Univ, Photon Res Grp, Birmingham B4 7ET, W Midlands, England

[2] Univ Plymouth, Sch Elect Commun & Elect Engn, Plymouth PL4 8AA, Devon, England

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2002年 / 73卷 / 04期

关键词：

D O I：

10.1063/1.1459093

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A low cost interrogation scheme is demonstrated for a refractometer based on an in-line fiber long period grating (LPG) Mach-Zehnder interferometer. Using this interrogation scheme the minimum detectable change in refractive index of Deltansimilar to1.8x10(-6) is obtained, which is the highest resolution achieved using a fiber LPG device, and is comparable to precision techniques used in the industry including high performance liquid chromatography and ultraviolet spectroscopy. (C) 2002 American Institute of Physics.

引用

页码：1702 / 1705

页数：4

共 22 条

[1] Detection of organic aromatic compounds in paraffin by a long-period fiber grating optical sensor with optimized sensitivity [J].