Abstract

Undoped fluoride glass slides have been exposed to pulsed 193-nm ultraviolet (UV) irradiation. Their absorption changes have been measured to evaluate UV-induced index changes using Kramers-Kronig relation. A layer-peeling polishing technique was applied to characterize the local UV-induced index change of highly absorbing glass. Index changes up to 1.75 x 10^-4 have been evaluated with this method in fluorozirco-aluminate glass. Fluoroaluminate and fluorozirconate glass showed only small index changes of about 2.0 x 10^-6 and 2.6 x 10^-6 at a wavelength of 1550 nm.

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Appl. Opt. (2)

Opt. Lett. (2)

Other (10)

B. Poumellec, I. Riant, P. Niay, P. Bernage and J. F. Bayon, "UV induced densification during Bragg grating inscription in Ge:SiO2 preforms: interferometric microscopy investigations", Opt. Mat., vol. 4, pp. 404-409, 1995.

H. G. Limberger, P. Y. Fonjallaz, R. P. Salathé and F. Cochet, "Compaction-and photoelastic-induced index changes in fiber Bragg gratings", Appl. Phys. Lett., vol. 68, pp. 3069-3071, 1996.

F. Dürr, H. G. Limberger, R. P. Salathé, F. Hindle, M. Douay, E. Fertein and C. Przygodzki, "Tomographic measurement of femtosecond-laser induced stress changes in optical fibers", Appl. Phys. Lett., vol. 84, pp. 4983-4985, 2004.

G. M. Williams, T. Tsai, C. I. Merzbacher and E. J. Friebele, "Photosensitivity of rare-earth-doped ZBLAN fluoride glasses", J. Lightw. Technol., vol. 15, pp. 1357-1362, 1997.

H. Poignant, S. Boj, E. Delevaque, M. Monerie, T. Taunay, P. Niay, P. Bernage and W. X. Xie, "Efficiency and thermal behavior of cerium doped fluorozirconate glass fiber Bragg gratings", Electron. Lett., vol. 30, pp. 1339-1341, 1994.

M. Zeller, T. Lasser, H. G. Limberger and G. Mazé, "UV-induced index change in Ce-doped and undoped fluoride glass", in Bragg Gratings, Photosensitivity and Poling in Glass Waveguides: OSA Topical Meeting, Monterey, CA, 2003, pp. 130-132.

R. Sramek, F. Smektala, W. X. Xie, M. Douay and P. Niay, "Photoinduced surface expansion of fluorozirconate glasses", J. Non-Cryst. Solids, vol. 277, pp. 39-44, 2000.

F. W. Preston, "The structure of abraded glass surfaces", Trans. Opt. Soc., vol. 23, pp. 141-164, 1921-22.

J. D. Dow and D. Redfield, "Toward a unified theory or Urbach's rule and exponential absorption edges", Phys. Rev. B, vol. 5, pp. 594-610, 1972.

M. Poulain, M. Poulain, J. Lucas and P. Brun, "Verres fluores au tetrafluorure de zirconium proprietes optiques d'un verre dope au Nd3+", Mat. Res. Bull., vol. 10, pp. 243-246, 1975.

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