Mechanism and characteristics of asymmetrically phase-shifted corrugated long-period fiber grating fabricated by burning fiber coating and etching cladding technology |
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| Authors: | Li Wang Fang Liu Lei Chen Zhiquan Cui Tieyi Yan |
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| Affiliation: | Key Laboratory of Optical Information Science and Technology, Ministry of Education, Institute of Modern Optics, Nankai University, Tianjin, China |
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| Abstract: | In this letter, a new phase-shifted corrugated long-period fiber grating (PS-CLPFG) manufacture method is proposed based on burning the fiber coating and etching cladding method. We analyze the effect of phase amplitude, locations, and numbers on transmission spectrum. A proof-of-concept experiment is performed, and a good agreement of theoretical analysis and experiment results is obtained. In addition, a relative easier method to control band-pass and band-rejection characteristics is reached. Moreover, the obvious sidelobes in the passband of multiple-π PS-CLPFG can be effectively suppressed. |
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| Keywords: | phase-shifted corrugated long-period fiber grating phase amplitude phase locations phase numbers |
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