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


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/cm2, 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.

Additional Information: © 2009 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Uncontrolled Keywords: fiber optics, optical communications, photonics, fiber Bragg grating structures
Publication ISSN: 1094-4087
Last Modified: 23 Oct 2019 11:05
Date Deposited: 08 Jul 2010 13:12
Published Date: 2009-04-22
Authors: Suo, Rui
Lousteau, Joris
Li, Hongxia
Jiang, Xin
Zhou, Kaiming
Zhang, Lin
MacPherson, William N.
Bookey, Henry T.
Barton, James S.
Kar, Ajoy K.
Jha, Animesh
Bennion, Ian


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