Fabrication of Bragg gratings in planar PMMA: impact of UV dosage and thermal annealing

被引：2
作者：
Rosenberger, M. [1 ]
Girschikofsky, M. [1 ]
Schmauss, B. [2 ]
Hellmann, R. [1 ]
机构：
[1] Univ Appl Sci Aschaffenburg, Appl Laser & Photon Grp, Wuerzburger Str 45, D-63743 Aschaffenburg, Germany
[2] Univ Erlangen Nurnberg, Inst Microwaves & Photon, Cauerstr 9, D-91058 Erlangen, Germany
来源：
OPTICS EXPRESS | 2016年 / 24卷 / 20期
关键词：
POLYMER OPTICAL-FIBER; WAVE-GUIDE;
D O I：
10.1364/OE.24.022563
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on the fabrication of planar Bragg gratings in polymer substrates and study the impact of the UV dosage and a subsequent thermal annealing on the reflectivity of the gratings and the full width at half maximum bandwidth of the reflected spectra. In addition, the influence of the grating length is investigated, showing that gratings as short as 4 mm continuously exhibit good reflection properties, facilitating miniaturized sensor designs. Moreover, we highlight that the polymer Bragg gratings exhibit a remarkable stable reflected spectrum for over two years. Finally, the experimentally determined spectral characteristics of the Bragg gratings are compared to simulated results revealing excellent agreement. (C) 2016 Optical Society of America
引用
收藏
页码：22563 / 22572
页数：10
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