Abstract

We investigate high-power operation of a very-large-mode-area (VLMA) fiber concept based on an index-antiguiding, thermally guiding core in which an ytterbium-doped region is completely surrounded by silica with a slightly higher refractive index. Experimentally, regimes of antiguidance, single-mode operation, and mode instabilities predominantly with radially symmetric higher-order modes are observed. Fundamental limitations for conventional VLMA step-index fibers are discussed.

© 2013 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. D. J. Richardson, J. Nilsson, and W. A. Clarkson, J. Opt. Soc. Am. B 27, B63 (2010).
    [CrossRef]
  2. A. E. Siegman, J. Opt. Soc. Am. A 20, 1617 (2003).
    [CrossRef]
  3. A. E. Siegman, J. Opt. Soc. Am. B 24, 1677 (2007).
    [CrossRef]
  4. Y. Chen, T. McComb, V. Sudesh, M. Richardson, and M. Bass, Opt. Lett. 32, 2505 (2007).
    [CrossRef]
  5. J. Limpert, O. Schmidt, J. Rothhardt, F. Röser, T. Schreiber, A. Tünnermann, S. Ermeneux, P. Yvernault, and F. Salin, Opt. Express 14, 2715 (2006).
    [CrossRef]
  6. M. Laurila, M. M. Jørgensen, K. R. Hansen, T. T. Alkeskjold, J. Broeng, and J. Lægsgaard, Opt. Express 20, 5742 (2012).
    [CrossRef]
  7. J. Limpert, F. Stutzki, F. Jansen, H.-J. Otto, T. Eidam, C. Jauregui, and A. Tünnermann, Light Sci. Appl. 1, e8 (2012).
    [CrossRef]
  8. D. C. Brown and H. J. Hoffman, IEEE J. Quantum Electron. 37, 207 (2001).
    [CrossRef]
  9. F. Jansen, F. Stutzki, H.-J. Otto, T. Eidam, A. Liem, C. Jauregui, J. Limpert, and A. Tünnermann, Opt. Express 20, 3997 (2012).
    [CrossRef]
  10. T. Eidam, C. Wirth, C. Jauregui, F. Stutzki, F. Jansen, H.-J. Otto, O. Schmidt, T. Schreiber, J. Limpert, and A. Tünnermann, Opt. Express 19, 13218 (2011).
    [CrossRef]
  11. C. Jauregui, T. Eidam, H.-J. Otto, F. Stutzki, F. Jansen, J. Limpert, and A. Tünnermann, Opt. Express 20, 12912 (2012).
    [CrossRef]
  12. B. Ward, C. Robin, and I. Dajani, Opt. Express 20, 11407 (2012).
    [CrossRef]
  13. H.-J. Otto, F. Stutzki, F. Jansen, T. Eidam, C. Jauregui, J. Limpert, and A. Tünnermann, Opt. Express 20, 15710 (2012).
    [CrossRef]
  14. X. Wang, Y. Chen, W. Hageman, G. U. Kim, M. Richardson, C. Xiong, J. Ballato, and M. Bass, J. Opt. Soc. Am. B 29, 191 (2012).
    [CrossRef]
  15. P. G. Yarandi, K. M. Gundu, and A. Mafi, J. Opt. Soc. Am. B 28, 2430 (2011).
    [CrossRef]
  16. F. Stutzki, F. Jansen, T. Eidam, A. Steinmetz, C. Jauregui, J. Limpert, and A. Tünnermann, Opt. Lett. 36, 689 (2011).
    [CrossRef]
  17. F. Stutzki, H.-J. Otto, F. Jansen, C. Gaida, C. Jauregui, J. Limpert, and A. Tünnermann, Opt. Lett. 36, 4572 (2011).
    [CrossRef]

2012 (7)

2011 (4)

2010 (1)

2007 (2)

2006 (1)

2003 (1)

2001 (1)

D. C. Brown and H. J. Hoffman, IEEE J. Quantum Electron. 37, 207 (2001).
[CrossRef]

Alkeskjold, T. T.

Ballato, J.

Bass, M.

Broeng, J.

Brown, D. C.

D. C. Brown and H. J. Hoffman, IEEE J. Quantum Electron. 37, 207 (2001).
[CrossRef]

Chen, Y.

Clarkson, W. A.

Dajani, I.

Eidam, T.

Ermeneux, S.

Gaida, C.

Gundu, K. M.

Hageman, W.

Hansen, K. R.

Hoffman, H. J.

D. C. Brown and H. J. Hoffman, IEEE J. Quantum Electron. 37, 207 (2001).
[CrossRef]

Jansen, F.

Jauregui, C.

Jørgensen, M. M.

Kim, G. U.

Lægsgaard, J.

Laurila, M.

Liem, A.

Limpert, J.

Mafi, A.

McComb, T.

Nilsson, J.

Otto, H.-J.

Richardson, D. J.

Richardson, M.

Robin, C.

Röser, F.

Rothhardt, J.

Salin, F.

Schmidt, O.

Schreiber, T.

Siegman, A. E.

Steinmetz, A.

Stutzki, F.

Sudesh, V.

Tünnermann, A.

Wang, X.

Ward, B.

Wirth, C.

Xiong, C.

Yarandi, P. G.

Yvernault, P.

IEEE J. Quantum Electron. (1)

D. C. Brown and H. J. Hoffman, IEEE J. Quantum Electron. 37, 207 (2001).
[CrossRef]

J. Opt. Soc. Am. A (1)

J. Opt. Soc. Am. B (4)

Light Sci. Appl. (1)

J. Limpert, F. Stutzki, F. Jansen, H.-J. Otto, T. Eidam, C. Jauregui, and A. Tünnermann, Light Sci. Appl. 1, e8 (2012).
[CrossRef]

Opt. Express (7)

Opt. Lett. (3)

Supplementary Material (2)

» Media 1: MP4 (527 KB)     
» Media 2: MP4 (1238 KB)     

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (5)

Fig. 1.
Fig. 1.

(a) Scanning electron micrograph image of the IAG thermally guiding air-clad fiber. The Yb-doped region is highlighted in green. The schematic refractive index profile is illustrated for the cold (b) and hot (c) cases.

Fig. 2.
Fig. 2.

Simulated mode profiles of the double-clad fiber structure for cold operation and for hot operation (40W/m, according to [8]). FM, fundamental mode; AS, radially antisymmetric higher-order mode; S, radially symmetric higher-order mode.

Fig. 3.
Fig. 3.

Output power versus pump power.

Fig. 4.
Fig. 4.

Near-field images of the fiber end facet for increasing output power. The whole air-clad region is displayed.

Fig. 5.
Fig. 5.

Modal decomposition of the output beam during mode instabilities (with temporal frequency of 500Hz) at an output power of 160 W (Media 1). Media 2 illustrates the more chaotic behavior at an output power of 200 W.

Metrics