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  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies
  • Technical Digest (CD) (Optica Publishing Group, 2006),
  • paper JTuD13

Structure of fiber gratings directly written by infrared femtosecond laser

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Structural modification in gratings inscribed point-by-point by a femtosecond laser is investigated using quantitative phase microscopy. The gratings present a central region with a depressed refractive index surrounded by an outer corona with increased index.

© 2006 Optical Society of America

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