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Optics Letters

Optics Letters


  • Vol. 12, Iss. 8 — Aug. 1, 1987
  • pp: 588–589

Observation of self-focusing in optical fibers with picosecond pulses

P. L. Baldeck, F. Raccah, and R. R. Alfano  »View Author Affiliations

Optics Letters, Vol. 12, Issue 8, pp. 588-589 (1987)

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Self-focusing was observed at Raman frequencies, using picosecond pulses propagating in a large-core optical fiber of 100-μm diameter. For intense input pulses, a continuum of Stokes frequencies was generated in a small ring-waveguide structure. The ring diameter of 11 μm was about 10 times smaller than the beam diameter at low intensities. The ring structure was attributed to an induced-gradient-index profile arising from the nonlinear index of refraction.

© 1987 Optical Society of America

Original Manuscript: March 27, 1987
Manuscript Accepted: May 14, 1987
Published: August 1, 1987

P. L. Baldeck, F. Raccah, and R. R. Alfano, "Observation of self-focusing in optical fibers with picosecond pulses," Opt. Lett. 12, 588-589 (1987)

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  1. Overviews and references on self-focusing in condensed media are given by D. H. Auston, in Ultrafast Light Pulses, S. L. Shapiro, ed. (Springer-Verlag, Berlin, 1977);Y. R. Shen, The Principles of Nonlinear Optics, (Wiley, New York, 1984).
  2. E. Garmire, R. Y. Chiao, C. H. Townes, Phys. Rev. Lett. 16, 347 (1966). [CrossRef]
  3. R. R. Alfano, S. L. Shapiro, Phys. Rev. Lett. 24, 592 (1970). [CrossRef]
  4. J. Botineau, F. Gires, A. Saissy, C. Vanneste, A. Azema, Appl. Opt. 17, 1208 (1978);A. DeFonzo, University of Massachusetts, Amherst, Massachusetts 01003 (personal communication, February1987). [CrossRef]
  5. D. Schad, B. Jaskorzynske, U. Osterberg, J. Opt. Soc. Am. B 3, 1257 (1986). [CrossRef]
  6. J. Gersten, R. R. Alfano, M. Belic, Phys. Rev. A 21, 1222 (1980). [CrossRef]
  7. R. R. Alfano, P.L. Baldeck, F. Raccah, P. P. Ho, “Cross phase modulation measured in optical fibers,” submitted to Appl. Opt.
  8. D. Glodge, IEEE Trans. MicrowaveTheory Tech. MTT-23, 106 (1975). [CrossRef]
  9. Masahiro Ikeda, IEEE J. Quantum Electron. QE-10, 162 (1974).
  10. G. Keiser, in Optical Fiber Communications (McGraw-Hill, New York, 1983).

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