Inscription of fiber Bragg gratings with femtosecond pulses using a phase mask scanning technique
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We report on the fabrication of highly efficient fiber Bragg gratings (FBG) in non-photosensitive fibers based on nonlinear absorption of fs laser light. Up to 40 mm long gratings with a transmission of T=-25 dB at the Bragg reflection wavelength were obtained and their coupling constant determined by spectral analysis. Therefore, a phase mask scanning technique with appropriate control of the focus was established.
KeywordsFemtosecond Pulse Beam Waist Diffraction Order Refractive Index Change Phase Mask
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- 3.R. Kashyap, Fiber Bragg Gratings (Academic Press, New York, 1999)Google Scholar
- 8.E. Wikszak, J. Burghoff, M. Will, S. Nolte, A. Tünnermann, T. Gabler, Recording of fiber Bragg gratings with femtosecond pulses using a point by point technique In: Conf. on Lasers and Electro-Opt. (2004)Google Scholar
- 16.B.E.A. Saleh, M.C. Teich, Fundamentals of Photonics (Wiley, New York, 1991)Google Scholar