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  • Vol. 21, Iss. 24 — Dec. 15, 1996
  • pp: 2032–2034

Negative-index gratings formed by a 193-nm excimer laser

L. Dong, W. F. Liu, and L. Reekie  »View Author Affiliations


Optics Letters, Vol. 21, Issue 24, pp. 2032-2034 (1996)
http://dx.doi.org/10.1364/OL.21.002032


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Abstract

We have demonstrated fast formation [~1500 pulses at ~1 (J/cm2)/pulse] of fiber gratings with highly negative index modulations (~−3 × 10−4). We have found that the maximum negative index modulations that are achieved do not depend on the pulse intensities, although the inverse of the time taken to reach the negative index-modulation maximum varies linearly with the pulse intensities. This prompts us to use a three-energy-level system to model the photosensitivity in boron-doped germanosilicate fiber. All the necessary parameters of the model can be determined from a single growth measurement of the average index change, and the model’s prediction fits well the measured index-modulation growth.

© 1996 Optical Society of America

History
Original Manuscript: August 13, 1996
Published: December 15, 1996

Citation
L. Dong, W. F. Liu, and L. Reekie, "Negative-index gratings formed by a 193-nm excimer laser," Opt. Lett. 21, 2032-2034 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-24-2032


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References

  1. P. Niay, P. Bernage, S. Legoubin, M. Douay, W. X. Sie, J. F. Bayon, T. Georges, M. Monerie, B. Poumellec, Opt. Commun. 113, 176 (1994). [CrossRef]
  2. D. L. Williams, B. J. Ainslie, J. R. Armitage, R. Kashyap, R. Campbell, Electron. Lett. 29, 45 (1993). [CrossRef]
  3. L. Dong, J. L. Cruz, L. Reekie, M. G. Xu, D. N. Payne, IEEE Photon. Technol. Lett. 7, 1048 (1995). [CrossRef]
  4. L. Dong, L. Reekie, J. L. Cruz, D. N. Payne, in Optical Fiber Communication, Vol. 2 of 1996 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1996), p. 82.
  5. P. E. Dyer, R. J. Farley, R. Giedl, K. C. Byron, Electron. Lett. 30, 860 (1994). [CrossRef]

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