Fiber Bragg gratings inscribed using 800nm femtosecond laser and a phase mask in single- And multi-core mid-IR glass fibers

Rui Suo, Joris Lousteau, Hongxia Li, Xin Jiang, Kaiming Zhou, Lin Zhang, William N. MacPherson, Henry T. Bookey, James S. Barton, Ajoy K. Kar, Animesh Jha, Ian Bennion

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27 Citations (Scopus)

Abstract

For the first time, Fiber Bragg grating (FBG) structures have been inscribed in single-core passive germanate and three-core passive and active tellurite glass fibers using 800nm femtosecond (fs) laser and phase mask technique. With fs peak power intensity in the order of 1011W/cm 2, the FBG spectra with 2nd and 3rd order resonances at 1540 and 1033nm in the germanate glass fiber and 2nd order resonances at ~ 1694 and ~ 1677nm with strengths up to 14dB in all three cores in the tellurite fiber were observed. Thermal responsivities of the FBGs made in these mid-IR glass fibers were characterized, showing average temperature responsivity ~ 20pm/°C. Strain responsivities of the FBGs in germanate glass fiber were measured to be 1.219pm/µe. © 2009 Optical Society of America.

Original languageEnglish
Pages (from-to)7540-7548
JournalOptics Express
Volume17
Issue number9
DOIs
Publication statusPublished - 27 Apr 2009

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    Suo, R., Lousteau, J., Li, H., Jiang, X., Zhou, K., Zhang, L., MacPherson, W. N., Bookey, H. T., Barton, J. S., Kar, A. K., Jha, A., & Bennion, I. (2009). Fiber Bragg gratings inscribed using 800nm femtosecond laser and a phase mask in single- And multi-core mid-IR glass fibers. Optics Express, 17(9), 7540-7548. https://doi.org/10.1364/OE.17.007540