.Fabrication of triangular fiber Bragg grating based on the one-step method[J].Optoelectronics Letters,2011,7(1):15-18 |
Fabrication of triangular fiber Bragg grating based on the one-step method |
周倩 |
Institute of Lightwave Technology,Beijing Jiaotong University; |
Abstract: |
A new method is presented to fabricate the triangular fiber Bragg grating (TFBG). The fabrication device is simple, only requires
a single exposure and does not need to write complicated program. The transfer matrix method is used to design the fiber Bragg
grating, and the grating resonant wavelength and the grating reflectivity can be controlled in order to achieve the triangular
spectrum. With different fiber tilt angles, the available bandwidth of TFBG, the linearity and the oblique gradient are also
different. In the experiment, the angles 1°, 1.5° and 2° are chosen. The results show that the best angle value is 1.5°, and
the TFBG has a good linearity, greater gradient and wider available bandwidth. |
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