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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 30 — Oct. 20, 2010
  • pp: 5799–5805

Refractive index change in ytterbium-doped fibers induced by photodarkening and thermal bleaching

Changgeng Ye, Joan J. Montiel i Ponsoda, Ari Tervonen, and Seppo Honkanen  »View Author Affiliations

Applied Optics, Vol. 49, Issue 30, pp. 5799-5805 (2010)

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High-accuracy measurements and analysis of refractive index change induced by photodarkening and thermal bleaching in ytterbium-doped fibers are presented, based on a modal interference method. Photodarkening-induced refractive index change is positive at the ytterbium lasing wavelengths near 1080 nm , and it approaches a saturated level, which is in the order of 10 6 10 5 for the tested fiber samples. It is found that the value of this refractive index change is linearly proportional to the photodarkening-induced excess loss at an arbitrary probe wavelength in the visible band. Thermal bleaching can only partially erase the photodarkening-induced refractive index change, leaving a residual index change of ( 0.2 0.3 ) × 10 5 . The influence of the photodarkening-induced refractive index change on fiber lasers is discussed.

© 2010 Optical Society of America

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3510) Lasers and laser optics : Lasers, fiber
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Lasers and Laser Optics

Original Manuscript: July 20, 2010
Manuscript Accepted: September 9, 2010
Published: October 14, 2010

Changgeng Ye, Joan J. Montiel i Ponsoda, Ari Tervonen, and Seppo Honkanen, "Refractive index change in ytterbium-doped fibers induced by photodarkening and thermal bleaching," Appl. Opt. 49, 5799-5805 (2010)

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  1. J. J. Koponen, M. J. Söderlund, H. J. Hoffman, and S. K. T. Tammela, “Measuring photodarkening from single-mode ytterbium doped silica fibers,” Opt. Express 14, 11539–11544(2006). [CrossRef] [PubMed]
  2. M. J. Söderlund, J. J. Montiel i Ponsoda, J. P. Koplow, and S. Honkanen, “Thermal bleaching of photodarkening-induced loss in ytterbium-doped fibers,” Opt. Lett. 34, 2637–2639(2009). [CrossRef] [PubMed]
  3. M. Leich, U. Röpke, S. Jetschke, S. Unger, V. Reichel, and J. Kirchhof, “Non-isothermal bleaching of photodarkened Yb-doped fibers,” Opt. Express 17, 12588–12593 (2009). [CrossRef] [PubMed]
  4. E. Bochove, “Nonlinear refractive index of a rare-earth-doped fiber laser,” Opt. Lett. 29, 2414–2416 (2004). [CrossRef] [PubMed]
  5. H. Garcia, A. M. Johnson, F. A. Oguama, and S. Trivedi, “Pump-induced nonlinear refractive-index change in erbium- and ytterbium-doped fibers: theory and experiment,” Opt. Lett. 30, 1261–1263 (2005). [CrossRef] [PubMed]
  6. A. A. Fotiadi, O. L. Antipov, and P. Mégret, “Dynamics of pump-induced refractive index changes in single-mode Yb-doped optical fibers,” Opt. Express 16, 12658–12663 (2008). [PubMed]
  7. M. Janos and S. C. Guy, “Signal-induced refractive index changes in erbium-doped fiber amplifiers,” J. Lightwave Technol. 16, 542–548 (1998). [CrossRef]
  8. J. Koponen, M. Söderlund, H. J. Hoffman, D. A. V. Kliner, J. P. Koplow, and M. Hotoleanu, “Photodarkening rate in Yb-doped silica fibers,” Appl. Opt. 47, 1247–1256 (2008). [CrossRef] [PubMed]
  9. S. Jetschke, S. Unger, U. Röpke, and J. Kirchhof, “Photodarkening in Yb doped fibers: experimental evidence of equilibrium states depending on the pump power,” Opt. Express 15, 14838–14843 (2007). [CrossRef] [PubMed]
  10. M. J. Söderlund, J. J. Montiel i Ponsoda, J. P. Koplow, and S. Honkanen, “Heat-induced darkening and spectral broadening in photodarkened ytterbium-doped fiber under thermal cycling,” Opt. Express 17, 9940–9946 (2009). [CrossRef] [PubMed]
  11. J. J. Montiel i Ponsoda, M. Soderlund, J. Koplow, J. Koponen, A. Iho, and S. Honkanen, “Combined photodarkening and thermal bleaching measurement of an ytterbium-doped fiber,” Proc. SPIE 7195, 71952D (2009). [CrossRef]
  12. J. Canning and A. L. G. Carter, “Modal interferometer for in situ measurements of induced core index change in optical fibers,” Opt. Lett. 22, 561–563 (1997). [CrossRef] [PubMed]
  13. J. Canning, A. L. G. Carter, and M. G. Sceats, “Correlation between photodarkening and index change during 193nmirradiation of germanosilicate and phosphosilicate fibers,” J. Lightwave Technol. 15, 1348–1356 (1997). [CrossRef]
  14. A. W. Snyder and J. D. Love, Optical Waveguide Theory(Chapman & Hall, 1983).
  15. T. Arai, K. Ichii, S. Tanigawa, and M. Fujimaki, “Defect Analysis of photodarkened and gamma-ray irradiated ytterbium-doped silica glasses,” in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper OWT2.
  16. J. Limpert, N. Deguil-Robin, I. Manek-Hönninger, F. Salin, F. Röser, A. Liem, T. Schreiber, S. Nolte, H. Zellmer, A. Tünnermann, J. Broeng, A. Petersson, and C. Jakobsen, “High-power rod-type photonic crystal fiber laser,” Opt. Express 13, 1055–1058 (2005). [CrossRef] [PubMed]
  17. A. E. Siegman, “Gain-guided, index-antiguided fiber lasers,” J. Opt. Soc. Am. B 24, 1677–1682 (2007). [CrossRef]
  18. N. Jovanovic, M. Aslund, A. Fuerbach, S. D. Jackson, G. D. Marshall, and M. J. Withford, “Narrow linewidth,100W CW Yb3+-doped silica fiber laser with a point-by-point Bragg grating inscribed directly into the active core,” Opt. Lett. 32, 2804–2806 (2007). [CrossRef] [PubMed]
  19. M. L. Aslund, N. Jovanovic, J. Canning, S. D. Jackson, G. D. Marshall, A. Fuerbach, and M. J. Withford, “Rapid decay of Type-II femtosecond laser inscribed gratings within Q-switched Yb3+-doped fiber lasers,” IEEE Photonics Technol. Lett. 22, 504–506 (2010). [CrossRef]
  20. A. Martinez, I. Y. Khrushchev, and I. Bennion, “Thermal properties of fiber Bragg gratings inscribed point-by-point by infrared femtosecond laser,” Electron. Lett. 41, 176–178 (2005). [CrossRef]

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