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Phase mask-based IR femtosecond grating inscription in a photonic crystal fiber with short focal length cylindrical lens

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Abstract

We first numerically studied the alignment peculiarities and then successfully inscribed a 4 dB strong fiber Bragg grating in a hexagonal lattice photonic crystal fiber in less than 4 seconds using a femtosecond pulse laser at 1030 nm.

© 2018 The Author(s)

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