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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 26 — Dec. 24, 2007
  • pp: 17509–17519

An explanation of SRS beam cleanup in graded-index fibers and the absence of SRS beam cleanup in step-index fibers

Nathan B. Terry, Thomas G. Alley, and Timothy H. Russell  »View Author Affiliations


Optics Express, Vol. 15, Issue 26, pp. 17509-17519 (2007)
http://dx.doi.org/10.1364/OE.15.017509


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Abstract

Beam cleanup via stimulated Raman scattering in multimode fibers is modeled by numerically considering the competition between the Stokes modes of graded-index and step-index fibers. The relative gain of each Stokes mode is calculated by considering the overlap the various pump and Stokes modes of the fibers. Mode competition in a graded-index fiber favors the LP01 Stokes mode while mode competition in a step-index fiber does not favor the LP01 Stokes mode. This model explains why beam cleanup has only been reported for graded-index fibers and not for step-index fibers.

© 2007 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(290.5910) Scattering : Scattering, stimulated Raman

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: October 15, 2007
Revised Manuscript: December 3, 2007
Manuscript Accepted: December 3, 2007
Published: December 11, 2007

Citation
Nathan B. Terry, Thomas G. Alley, and Timothy H. Russell, "An explanation of SRS beam cleanup in graded-index fibers and the absence of SRS beam cleanup in step-index fibers," Opt. Express 15, 17509-17519 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-26-17509


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References

  1. K. S. Chiang, "Stimulated Raman scattering in a multimode optical fiber: evolution of modes in Stokes waves," Opt. Lett. 17, 352 (1992). [CrossRef] [PubMed]
  2. T. H. Russell, S. M. Willis, M. B. Crookston and W. B. Roh, "Stimulated Raman scattering in multimode fibers and its application to beam cleanup and combining," J. Nonlinear Opt. Phys. Mater. 11, 303-316 (2002). [CrossRef]
  3. P. L. Baldeck, F. Raccah and R. R. Alfano, "Observation of self-focusing in optical fibers with picosecond pulses," Opt. Lett. 12, 588 (1987). [CrossRef] [PubMed]
  4. Z. V. Nesterova, I. V. Aleksandrov, A. A. Polnitskii, and D. K. Sattarov, "Propagation characteristics of high power ultrashort light pulses in optical fibers," JETP Lett. 34, 371 (1981).
  5. B. M. Flusche, T. G. Alley, T. H. Russell, and Won B. Roh, "Multi-port beam combination and cleanup in large multimode fiber using stimulated Raman scattering," Opt. Express 14, 11748 (2006). [CrossRef] [PubMed]
  6. T. Y. Fan, "Laser beam combining for high-power, high-radiance sources," IEEE J. Sel. Top. Quantum Electron. 11, 567-577 (2005). [CrossRef]
  7. S. H. Baek and W. B. Roh, "Single-mode Raman fiber laser based on a multimode fiber," Opt. Lett. 29, 153 (2004). [CrossRef] [PubMed]
  8. N. B. Terry, K. T. Engel, T. G. Alley, and T. H. Russell, "Use of a continuous wave Raman fiber laser in graded-index multimode fiber for SRS beam combination," Opt. Express 15, 602-7 (2007). [CrossRef] [PubMed]
  9. A. Polley and S. E. Ralph, "Raman amplification in multimode Fiber," IEEE Photon. Technol. Lett. 19, 218 (2007). [CrossRef]
  10. M. D. Sharma, Z. Q. Wu, R. Posey, A. Williams, P. Venkateswarlu, "Stimulated Raman scattering in a multimode optical fiber with bend-induced loss," Opt. Commun. 111, 127 (1994). [CrossRef]
  11. R. G. Smith, "Optical power handing capacity of low loss optical fibers as determined by stimulated Raman and Brillouin scattering," Appl. Opt. 11, 2490 (1972). [CrossRef]
  12. G. P. Agrawal, Nonlinear Fiber Optics, 3rd ed., (Academic Press, San Diego, 2001), Chap. 8.
  13. R. H. Stolen, "Fiber Raman lasers," Fiber and Integr. Opt. 3, 21-51 (1980). [CrossRef]
  14. E. M. Dianov, I. A. Bufetov, M. M. Bubnov, M. V. Grekov, S. A. Sasiliev, O. I. Medvedkov, A.V. Shubin, A. N. Guryanov, V. F. Khopin, M. V. Yashkov, E. M. Deliso, D. L. Butler, "1.3 ?m Raman fiber amplifier," Proc. SPIE 4083, 101-109, (2000). [CrossRef]
  15. T. H. Russell, B. W. Grime, T. G. Alley and W. B. Roh, "Stimulated Brillouin scattering beam cleanup and Combining in optical Fiber", to be published in Nonlinear Optics and Recent Advances in Optics, Research Signpost (2007).
  16. A. W. Synder and J. D. Love, Optical Waveguide Theory, (Chapman and Hall, New York, 1983).
  17. B. E. A. Saleh and M. C. Teich, Fundamentals of Photonics, (John Wiley and Sons, New York, 1991), Chap. 8. [CrossRef]

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