Fabrication of triangular fiber Bragg grating based on the one-step method
Qian Zhou, Ti-gang Ning, Jing Li, Xu-dong Hu, Li Pei, Chunhui Qi, Jing Zheng
Optoelectronics Letters ›› 2011, Vol. 7 ›› Issue (1) : 15-18.
Fabrication of triangular fiber Bragg grating based on the one-step method
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.
Fiber Bragg Grating / Transfer Matrix Method / Resonant Wavelength / Fiber Bragg Grating Sensor / Phase Mask
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This work has been supported by the National Natural Science Foundation of China (Nos.60771008 and 60837002), the Natural Science Foundation of Beijing (No.4082024), the Ph.D. Programs Foundation of Ministry of Education of China (No.20090009110003), and the Foundation for the Returning Scholars (No.2008890).
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