Chinese Optics Letters, Volume. 1, Issue 4, 04199(2003)
A novel way to write fiber Bragg gratings with controllable wavelength and chirp using a phase mask
A novel method for writing long fiber Bragg grating (FBG) with arbitrary multi-wavelength and chirp at the same place of a fiber by using a phase mask is presented. An experimental equation is derived for Bragg wavelength, and the Bragg wavelength is found to be a function of the distance between the fiber and the phase mask. The chirp of the overlapped FBG is decided by the angle between phase mask and fiber. A multi-wavelength FBG with 4, 8, 16 channels has been written by using a unique phase mask.
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Tigang Ning, Liu Yan, Zhongwei Tan, Li Pei, Yongjun Fu, Shuisheng Jian, "A novel way to write fiber Bragg gratings with controllable wavelength and chirp using a phase mask," Chin. Opt. Lett. 1, 04199 (2003)
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