20 February 2017 Femtosecond-pulse inscription of fiber Bragg gratings in multimode graded index fiber
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Proceedings Volume 10091, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXII; 100910L (2017); doi: 10.1117/12.2251337
Event: SPIE LASE, 2017, San Francisco, California, United States
Abstract
Femtosecond-pulse modification of the refractive index in transparent materials enables the inscription of fiber Bragg gratings with new features and extended capabilities. In this study we present the results of fiber Bragg gratings inscription in Corning 62.5/125 multimode graded index fiber with IR femtosecond laser pulses. The specifics of point-by-point inscription including single and multiple Bragg grating inscription in limited fiber segment as well as different transverse modes excitation/suppression is discussed. Multimode fiber Bragg gratings inscribed with femtosecond radiation are investigated for the first time directly in the Raman fiber laser cavity.
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Alexandr V. Dostovalov, Alexey A. Wolf, Ekaterina A. Zlobina, Sergey I. Kablukov, Sergey A. Babin, "Femtosecond-pulse inscription of fiber Bragg gratings in multimode graded index fiber", Proc. SPIE 10091, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXII, 100910L (20 February 2017); doi: 10.1117/12.2251337; http://dx.doi.org/10.1117/12.2251337
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KEYWORDS
Fiber Bragg gratings

Multimode fibers

Femtosecond phenomena

Refractive index

Graded index fibers

Fiber lasers

Raman spectroscopy

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