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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 19, Iss. 9 — Sep. 1, 2002
  • pp: 2039–2041

Direct measurement of 248- and 193-nm excimer-induced densification in silica–germania waveguide blanks: comment

Bertrand Poumellec and Pierre Niay  »View Author Affiliations

JOSA B, Vol. 19, Issue 9, pp. 2039-2041 (2002)

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We argue that the conclusion of Borrelli [J. Opt. Soc. Am. B 16, 1672–1679 (1999)] in favor of a negligible contribution of the UV-induced densification to the refractive index change raises questions for the following reasons: (i) The use of a relation between index change and inelastic strains is inadequate to the problem of UV exposure, (ii) the authors claim to describe the process in fiber but forget to take into account the mechanical reaction of the cladding, and (iii) the authors transfer results obtained in oxidized bulk samples to reduced fiber glass.

© 2002 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(160.0160) Materials : Materials
(160.2290) Materials : Fiber materials

Bertrand Poumellec and Pierre Niay, "Direct measurement of 248- and 193-nm excimer-induced densification in silica–germania waveguide blanks: comment," J. Opt. Soc. Am. B 19, 2039-2041 (2002)

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  1. N. F. Borrelli, D. C. Allan, and R. A. Modavis, “Direct measurement of 248- and 193-nm excimer-induced densification in silica–germania waveguide blanks,” J. Opt. Soc. Am. B 16, 1672–1679 (1999). [CrossRef]
  2. J. Albert, B. Malo, K. O. Hill, F. Bilodeau, D. C. Johnson, and S. Theriault, “Comparison of one-photon and two-photon effects in the photosensitivity of germanium doped silica optical fibers exposed to intense ArF excimer laser pulses,” Appl. Phys. Lett. 67, 3529–3531 (1995). [CrossRef]
  3. B. Leconte, “Contribution à l’étude de la photosensibilité des fibres sous l’effet d’une insolation par un laser à ArF” thesis, No. 2379 (University of Lille, Lille, France, 1998).
  4. B. Poumellec, P. Niay, M. Douay, and J. F. Bayon, “The UV-induced refractive index grating in Ge–SiO2 performs: additional cw experiments and the macroscopic origin of the change in index,” J. Phys. D 29, 1842–1856 (1996). [CrossRef]
  5. M. Douay, W. X. Xie, T. Taunay, P. Bernage, P. Niay, P. Cordier, B. Poumellec, L. Dong, J. F. Bayon, H. Poignant, and E. Delevaque, “Densification involved in the UV-based photosensitivity of silica glasses and optical fibers,” J. Lightwave Technol. 15, 1329–1342 (1997). [CrossRef]
  6. H. Mueller, “The theory of elasticity,” J. Am. Ceram. Soc. 21, 27–33 (1937). [CrossRef]
  7. H. Mueller, “Theory of the photoelastic effect of cubic crystals,” Phys. Rev. 47, 947–957 (1935). [CrossRef]
  8. R. E. Schenker and W. G. Oldham, “Ultraviolet-induced densification in fused silica,” J. Appl. Phys. 82, 1065–1071 (1997). [CrossRef]
  9. F. Kherbouche and B. Poumellec, “UV-induced stress field during Bragg grating inscription in optical fibres,” J. Opt. A 3, 429–439 (2001). [CrossRef]
  10. F. Kherbouche, “Modifications chimiques et des contraintes mécaniques induites par l’irradiation UV des fibres optiques Germanosilicates” thesis No. 6016 (Université Paris XI Orsay, 1999).

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