Sensitivity optimization with cladding-etched long period fiber gratings at the dispersion turning point

被引：53
|
作者：
Del Villar, Ignacio [1 ,2 ]
Cruz, Jose L. [3 ]
Socorro, Abian B. [1 ,2 ]
Corres, Jesus M. [1 ,2 ]
Matias, Ignacio R. [1 ,2 ]
机构：
[1] Univ Publ Navarra, Dept Elect & Elect Engn, Edificio Los Tejos,Campus Arrosadia S-N, Pamplona 31006, Spain
[2] Univ Publ Navarra, Inst Smart Cities, Campus Arrosadia S-N, Pamplona 31006, Spain
[3] Univ Valencia, Dept Appl Phys & Electromagnetism, Dr Moliner 50, E-46100 Burjassot, Spain
来源：
OPTICS EXPRESS | 2016年 / 24卷 / 16期
关键词：
REFRACTIVE-INDEX SENSITIVITY; TRANSITION MODE; DEPOSITION; COATINGS; OVERLAYS; SENSORS;
D O I：
10.1364/OE.24.017680
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This work presents a refractive index sensor based on a long period fiber grating (LPFG) made in a reduced cladding fiber whose low order cladding modes have the turning point at large wavelengths. The combination of these parameters results in an improved sensitivity of 8734 nm/refractive index unit (RIU) for the LP0,3 mode in the 1400-1650 wavelength range. This value is similar to that obtained with thin-film coated LPFGs, which permits to avoid the coating deposition step. The numerical simulations are in agreement with the experimental results. (C) 2016 Optical Society of America
引用
收藏
页码：17680 / 17685
页数：6
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