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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • 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)
http://dx.doi.org/10.1364/JOSAB.19.002039


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Abstract

We argue that the conclusion of Borrelli et al. [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

Citation
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)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-19-9-2039


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References

  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).
  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).
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  8. R. E. Schenker and W. G. Oldham, “Ultraviolet-induced densification in fused silica,” J. Appl. Phys. 82, 1065–1071 (1997).
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