CO2 laser induced long period gratings in optical microfibers

被引：135

作者：

Xuan, Haifeng ^{[1
]}

Jin, Wei ^{[1
]}

Zhang, Min ^{[2
]}

机构：

[1] Hong Kong Polytech Univ, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China

[2] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 24期

关键词：

SUBWAVELENGTH-DIAMETER SILICA; PHOTONIC BANDGAP FIBER; SINGLE-MODE FIBER; REFRACTIVE-INDEX; WAVE-GUIDES; TAPERS; SENSITIVITY; DEVICES; INTERFEROMETER; TEMPERATURE;

D O I：

10.1364/OE.17.021882

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Long period gratings (LPGs) are fabricated by use of focused high frequency CO2 laser pulses to periodically modify the transverse dimension of silica microfibers. A 20-period LPG with a 27dB attenuation dip is realized in a microfiber with a diameter of similar to 6.3 mu m. The resonant wavelength has a negative temperature coefficient and a high sensitivity to external refractive index. The microfiber LPGs may be useful in micron scale in-fiber devices and sensors. (C) 2009 Optical Society of America

引用

页码：21882 / 21890

页数：9

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