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Theoretical Analysis of Fiber Bragg Grating Tunable Filter Utilizing Tensile /Compression Technique

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Abstract

In this paper a wideband tunable filter based on fiber Bragg grating (TF-FBG) utilizing tensile/ compression technique is theoretically investigated. According to the results, a wide tuning range is achieved about 48.36 nm in C-band region from 1513.7 nm to 1562.1 nm; 12.09 nm for tension and 36.27 nm for compression (C-band refers to the wavelength range 1530–1565 nm). While, for L-band region the wavelength shift is slightly greater than in the C-band region about 49.272 nm from 1543 nm to 1592.3 nm; 12.3 nm for tension and 36.972 nm for compression (L-band refers to the wavelength range 1565 – 1625 nm).

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