Waveguide Bragg Gratings in Ormocer®s for Temperature Sensing

被引：15

作者：

Girschikofsky, Maiko ^{[1
]}

Rosenberger, Manuel ^{[1
]}

Foerthner, Michael ^{[2
]}

Rommel, Mathias ^{[3
]}

Frey, Lothar ^{[2
,3
]}

Hellmann, Ralf ^{[1
]}

机构：

[1] Univ Appl Sci Aschaffenburg, Appl Laser & Photon Grp, D-63743 Aschaffenburg, Germany

[2] Friedrich Alexander Univ Erlangen, Chair Electron Devices, D-91058 Erlangen, Germany

[3] Fraunhofer Inst Integrated Syst & Device Technol, D-91058 Erlangen, Germany

来源：

SENSORS | 2017年 / 17卷 / 11期

关键词：

Bragg grating; temperature; humidity; hybrid polymer; Ormocer((R)); FABRICATION; PRESSURE; SENSOR;

D O I：

10.3390/s17112459

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Embedded channel waveguide Bragg gratings are fabricated in the Ormocer((R)) hybrid polymers OrmoComp((R)), OrmoCore, and OrmoClad by employing a single writing step technique based on phase mask technology and KrF excimer laser irradiation. All waveguide Bragg gratings exhibit well-defined reflection peaks within the telecom wavelengths range with peak heights of up to 35 dB and -3 dB-bandwidths of down to 95 pm. Furthermore, the dependency of the fabricated embedded channel waveguide Bragg gratings on changes of the temperature and relative humidity are investigated. Here, we found that the Bragg grating in OrmoComp((R)) is significantly influenced by humidity variations, while the Bragg gratings in OrmoCore and OrmoClad exhibit linear and considerably high temperature sensitivities of up to -250 pm/C and a linear dependency on the relative humidity in the range of -9 pm/%.

引用

页数：9

共 21 条

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