OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 22 — Oct. 29, 2007
  • pp: 14838–14843

Photodarkening in Yb doped fibers: experimental evidence of equilibrium states depending on the pump power

Sylvia Jetschke, Sonja Unger, Ulrich Röpke, and Johannes Kirchhof  »View Author Affiliations

Optics Express, Vol. 15, Issue 22, pp. 14838-14843 (2007)

View Full Text Article

Enhanced HTML    Acrobat PDF (360 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Photodarkening in Yb doped fibers was examined at 633 nm in-situ during cladding pumping at 915 nm with varying pump powers and with no indication of an onset threshold. For the first time, the partial bleaching of the photodarkening loss by the pump power itself was observed. We found the relaxation to well-defined equilibrium states of the core excess loss, depending on the Yb inversion. From the dependence of the measured rate constant on the density of excited Yb ions we conclude, that on average 3 to 4 excited Yb ions create or bleach one color center responsible for the core excess loss.

© 2007 Optical Society of America

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(160.2290) Materials : Fiber materials
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: August 27, 2007
Revised Manuscript: October 24, 2007
Manuscript Accepted: October 24, 2007
Published: October 25, 2007

Sylvia Jetschke, Sonja Unger, Ulrich Röpke, and Johannes Kirchhof, "Photodarkening in Yb doped fibers: experimental evidence of equilibrium states depending on the pump power," Opt. Express 15, 14838-14843 (2007)

Sort:  Year  |  Journal  |  Reset  


  1. M. M. Broer, D. M. Krol, and D. J. DiGiovanni, "Highly nonlinear near-resonant photodarkening in a thulium-doped aluminosilicate glass fiber," Opt. Lett. 18, 799-801 (1993). [CrossRef] [PubMed]
  2. G. R. Atkins and A. L. G. Carter, "Photodarkening in Tb3+-doped phosphosilicate and germanosilicate optical fibers," Opt. Lett. 19, 874-876 (1994). [CrossRef] [PubMed]
  3. J. J. Koponen, M. J. Söderlund, H. J. Hoffmann, and S. K. T. Tammela, "Measuring photodarkening from single-mode ytterbium doped silica fibers," Opt. Express 14,11539-11544 (2006). [CrossRef] [PubMed]
  4. I. Manek-Hönninger, J. Boullet, T. Cardinal, F. Guillen, M. Podgorski, R. Bello Doua, and F. Salin, "Photodarkening and photobleaching of an ytterbium-doped silica double-clad LMA fiber," Opt. Express 15, 1606-1611 (2007). [CrossRef] [PubMed]
  5. B. Morasse, S. Chatigny, E. Gagnon, C. Hovington, J.-P. Martin, and J.-P. De Sandro, "Low photodarkening single cladding ytterbium fibre amplifier," in Fiber Lasers IV: Technology, Systems, and Applications, D. J. Harter, A. Tünnermann, J. Broeng, and C. Headley, eds., Proc. SPIE 6453, 64530H-1-9 (2007). [CrossRef]
  6. S. Yoo, C. Basu, A. J. Boyland, C. Sones, J. Nilsson, J. K. Sahu, and D. Payne, "Photodarkening in Yb-doped aluminosilicate fibers induced by 488nm irradiation," Opt. Lett. 32, 1626-1628 (2007). [CrossRef] [PubMed]
  7. J. Jasapara, M. Andrejco, D. DiGiovanni, and R. Windeler, "Effect of heat and H2 gas on the photodarkening of Yb3+ fibers," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies 2006, Technical Digest (Optical Society of America, Washington, DC, 2006), CTuQ5.
  8. A. V. Shubin, M. V. Yashkov, M. A. Melkumov, S. A. Smirnow, I. A. Bufetov, and E. M. Dianov, "Photodarkening of aluminosilicate and phosphosilicate Yb-doped fibers," in Conf. Digest of CLEO Europe-EQEC 2007, CJ3-1-THU.
  9. J. Koponen, M. Söderlund, H. J. Hoffman, D. Kliner, and J. Koplow, "Photodarkening Measurements in Large-Mode-Area Fibers," in Fiber Lasers IV: Technology, Systems, and Applications, D. J. Harter,A. Tünnermann, J. Broeng, and C. Headley, eds., Proc. SPIE 6453, 64531E-1-11 (2007). [CrossRef]
  10. J. Kirchhof, S. Unger, A. Schwuchow, S. Grimm, and V. Reichel, "Materials for high-power fiber lasers," J. Non-Cryst. Solids 352, 2399-2403 (2006). [CrossRef]
  11. J. Kirchhof, S. Unger, and A. Schwuchow, "Properties of Yb-doped materials for solid and microstructured high power fiber lasers," in Proceedings of ICMAT 2007 Symposium on Microstructured and Nanostructured Optical Fibers, Singapore, 1-6 July, 2007.
  12. R. Paschotta, J. Nilsson, P. R. Barber, J. E. Caplen, A. C. Tropper, and D. C. Hanna, "Lifetime quenching in Yb-doped fibers," Opt. Commun. 136, 375-378 (1997). [CrossRef]
  13. C. P. Lindsey and G. D. Patterson, "Detailed comparison of the Williams-Watts and Cole-Davidson functions," J. Chem. Phys. 73, 3348-3357 (1980). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited