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Writing of a Bragg Grating on a D-shaped Optical Fiber Using the KrF Excimer Laser | ||
| Iraqi Journal of Laser | ||
| Article 1, Volume 13, Issue 0, 2014, Pages 37-42 | ||
| Authors | ||
| Shaymaa R. Mohammed; Rong Z. Chen; Khalil I. Hajim; Kevin P. Chen | ||
| Abstract | ||
| Abstract: Fiber Bragg Grating has many advantages where it can be used as a temperature sensor, pressure sensor or even as a refractive index sensor. Designing each of this fiber Bragg grating sensors should include some requirements. Fiber Bragg grating refractive index sensor is a very important application. In order to increase the sensing ability of fiber Bragg gratings, many methods were followed. In our proposed work, the fiber Bragg grating was written in a D-shaped optical fiber by using a phase mask method with KrFexcimer. The resultant fiber Bragg grating has a high reflectivity 99.99% with a Bragg wavelength of 1551.2 nm as a best result obtained from a phase mask with a grating period of 1057 nm. In this work it was found that the rotation of the core of the D-shaped optical fiber that faces the phase mask is very important in determining the quality of written fiber Bragg grating. | ||
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