Dispersion compensation based on sampled fiber Bragg gratings fabricated with reconstruction equivalent-chirp method |
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Authors: | Yitang Dai Xiangfei Chen Jie Sun Yu Yao Shizhong Xie |
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Affiliation: | Dept. of Electron. Eng., Tsinghua Univ., Beijing, China; |
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Abstract: | Using uniform phase mask and conventional fabrication technology with submicrometer rather than nanometer precision, a pure third-order dispersion-compensating fiber Bragg grating (DCFBG) and a tunable slope DCFBG are demonstrated with high performance based on the combined reconstruction equivalent-chirp method and an error correction technique. The former DCFBG has a dispersion varying from /spl sim/1000 to /spl sim/-1000 ps/nm in the 100-GHz passband and group delay ripple is less than /spl plusmn/5 ps. The latter has a dispersion slope varying from -150 to 150 ps/nm/sup 2/ within the 3-nm passband, and its group delay ripple is less than /spl plusmn/10 ps. |
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