Fabrication of high quality UV-written fiber bragg gratings |
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Authors: | Genxiang Chen Shuisheng Jian Huang Ge Ling Yang Xun Li Wei Wang |
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Institution: | (1) Institute of Lightwave Technology, Northern Jiaotong University, 100044 Beijing, China;(2) National Research Center for Optoelectronics Technology, Institute of Semiconductor, Chinese Academy of Sciences, 100083 Beijing, China |
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Abstract: | Conclusion In conclusion, we have reported that 98.5 % peak power reflectivity fiber Bragg gratings were fabricated in the core of B/Ge
co-doped optical fiber using 248 nm KrF excimer laser pulses to irradiate a phase mask. The fiber gratings fabricated by the
method described above have negligible sideband and good wavelength selectivity. They can find applications in WDM optical
fiber transmission systems, fiber grating external cavity semiconductor lasers, and rearearth-doped fiber lasers. But more
efforts are needed to further improve the transmission spectra of the gratings, because the ripple in the short wavelength
side is harmful to their use in WDM systems. |
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Keywords: | fiber Bragg grating fiber filter fiber photosensitivity |
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