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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 28 — Oct. 1, 2008
  • pp: 5078–5080

Comment on the reported fiber attenuations in the visible regime in “Fabrication of glass photonic crystal fibers with a die-cast process”

Xian Feng, Wei H. Loh, and David J. Richardson  »View Author Affiliations

Applied Optics, Vol. 47, Issue 28, pp. 5078-5080 (2008)

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We comment on the recent paper by Zhou et al. [ Appl. Opt. 45, 4433 (2006)], in which transmission losses of 0.2 0.3 dB / m were claimed across the wavelength range 420 900 nm in a high-index ( n d = 1.80518 at 587.6 nm ) SF6 glass-based photonic crystal fiber fabricated by novel die-cast technique. If confirmed, these losses are at least 1 order of magnitude lower than previous reported losses of SF6 photonic crystal fibers from other fabrication approaches. Here we present a statistic survey on the relationship between the refractive index and the bulk material attenuation, based on a large number of commercial Schott optical glasses with the n d ranging between 1.40 and 2.05. It shows that the loss of a high-index ( n d = 1.80 ) glass optical fiber should be at the levels of 10 50 dB / m at 420 nm and 1 10 dB / m at 500 nm , respectively. Moreover, the material attenuation of such a high-index glass fiber should intrinsically show a large decay, from 10 50 dB / m at 420 nm to the level of 1 dB / m at 700 nm , which arises from the tail on the UV absorption edge of the high-index glass extending to the visible region. Therefore, we conclude that: (1) the low loss of 0.2 0.3 dB / m reported in the cited paper is abnormally one or two magnitudes lower than the material attenuation that a high-index ( n d = 1.80 ) glass optical fiber should have in the range between 420 and 500 nm and that (2) the flat loss curve between 420 and 700 nm in the cited paper deviates greatly from the intrinsic behavior of a high-index ( n d = 1.80 ) glass fiber.

© 2008 Optical Society of America

OCIS Codes
(060.2300) Fiber optics and optical communications : Fiber measurements
(160.2750) Materials : Glass and other amorphous materials

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: July 26, 2007
Revised Manuscript: December 11, 2007
Manuscript Accepted: December 11, 2007
Published: September 23, 2008

Xian Feng, Wei H. Loh, and David J. Richardson, "Comment on the reported fiber attenuations in the visible regime in “Fabrication of glass photonic crystal fibers with a die-cast process”," Appl. Opt. 47, 5078-5080 (2008)

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  1. G. Zhou, Z. Hou, S. Li, and L. Hou, “Fabrication of glass photonic crystal fibers with a die-cast process,” Appl. Opt. 45, 4433-4436 (2006). [CrossRef]
  2. X. Feng, A. K. Mairaj, D. W. Hewak, and T. M. Monro, “Towards high-index-glass based monomode holey fibre with large-mode-area,” Electron. Lett. 40, 167-169 (2004). [CrossRef]
  3. V. V. R. K. Kumar, A. K. George, W. H. Reeves, J. C. Knight, P. St. J. Russell, F. G. Omenetto, and A. J. Taylor, “Extruded soft glass photonic crystal fiber for ultrabroad supercontinuum generation,” Opt. Express 10, 1520-1525 (2002). [PubMed]
  4. W. Heitmann, “Attenuation measurement in low-loss optical glass by polarized radiation,” Appl. Opt. 14, 3047-3052 (1975). [PubMed]
  5. K. C. Kao and T. W. Davies, “Spectrophotometric studies of ultra low loss optical glasses I: single beam method,” J. Phys. E 2, 1063-1068 (1968). [CrossRef]
  6. P. Kaiser, “Spectral losses of unclad fibers made from high-grade vitreous silica,” Appl. Phys. Lett. 23, 45-46 (1973). [CrossRef]
  7. D. A. Pinnow and T. C. Rich, “Development of a calorimetric method for making precision optical absorption measurements,” Appl. Opt. 12, 984-992 (1973). [CrossRef] [PubMed]
  8. A. R. Tynes, A. D. Pearson, and D. L. Bisbee, “Loss mechanisms and measurements in clad glass fibers and bulk glass,” J. Opt. Soc. Am. 61, 143-153 (1971). [CrossRef]
  9. Schott E-Catalogue 2000--Optical Glass, for Windows, version 1.1E (Schott Glass, 2001).
  10. Schott E-Catalog Optical Glass: Schott'96, for Windows (Schott Glass, 1996).
  11. X. Feng, A. K. Mairaj, D. W. Hewak, and T. M. Monro, “Nonsilica glasses for holey fibers,” J. Lightwave Technol. 23, 2046-2054 (2005). [CrossRef]
  12. J. Y. Y. Leong, P. Petropoulos, J. H. V. Price, H. Ebendorff-Heidepriem, S. Asimakis, R. C. Moore, K. E. Frampton, V. Finazzi, X. Feng, T. M. Monro, and D. J. Richardson, “High-nonlinearity dispersion-shifted lead-silicate holey fibers for efficient 1-μm pumped supercontinuum generation,” J. Lightwave Technol. 24, 183-190 (2006). [CrossRef]

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