Abstract

We report lasing and amplification in a rod type thulium-doped photonic crystal fiber with 80 μm core diameter. The rod is pumped with a 793 nm laser diode and produces more than 20 W output power at a beam quality M2<1.3. The laser/amplifier has a slope efficiency of 27.8%/20.1% relative to absorbed pump power with a lasing threshold at 28.6 W. The output wavelength in the lasing configuration can be tuned over 180 nm from 1810–1990 nm.

© 2012 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. Tünnermann, T. Schreiber, and J. Limpert, Appl. Opt. 49, F71 (2010).
    [CrossRef]
  3. G. D. Goodno, L. D. Book, and J. E. Rothenberg, Opt. Lett. 34, 1204 (2009).
    [CrossRef]
  4. T. S. McComb, R. A. Sims, C. C. C. Willis, P. Kadwani, V. Sudesh, L. Shah, and M. C. Richardson, Appl. Opt. 49, 6236 (2010).
    [CrossRef]
  5. L. Pearson, J. W. Kim, Z. Zhang, M. Ibsen, J. K. Sahu, and W. A. Clarkson, Opt. Express 18, 1607 (2010).
    [CrossRef]
  6. G. Imeshev and M. Fermann, Opt. Express 13, 7424 (2005).
    [CrossRef]
  7. S. D. Jackson, Opt. Commun. 230, 197 (2004).
    [CrossRef]
  8. N. Modsching, P. Kadwani, R. A. Sims, L. Leick, J. Broeng, L. Shah, and M. Richardson, Opt. Lett. 36, 3873 (2011).
    [CrossRef]
  9. P. Kadwani, N. Modsching, R. A. Sims, L. Leick, J. Broeng, L. Shah, and M. Richardson, Opt. Lett. 37, 1664 (2012).
    [CrossRef]
  10. P. Kadwani, A. Sims, L. Leick, J. Broeng, L. Shah, and M. Richardson, in OSA Specialty Optical Fibers 2012 (Optical Society of America2012), paper SW2F.3.

2012

2011

2010

2009

2005

2004

S. D. Jackson, Opt. Commun. 230, 197 (2004).
[CrossRef]

Book, L. D.

Broeng, J.

Clarkson, W. A.

Fermann, M.

Goodno, G. D.

Ibsen, M.

Imeshev, G.

Jackson, S. D.

S. D. Jackson, Opt. Commun. 230, 197 (2004).
[CrossRef]

Kadwani, P.

Kim, J. W.

Leick, L.

Limpert, J.

McComb, T. S.

Modsching, N.

Nilsson, J.

Pearson, L.

Richardson, D. J.

Richardson, M.

Richardson, M. C.

Rothenberg, J. E.

Sahu, J. K.

Schreiber, T.

Shah, L.

Sims, A.

P. Kadwani, A. Sims, L. Leick, J. Broeng, L. Shah, and M. Richardson, in OSA Specialty Optical Fibers 2012 (Optical Society of America2012), paper SW2F.3.

Sims, R. A.

Sudesh, V.

Tünnermann, A.

Willis, C. C. C.

Zhang, Z.

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 (6)

Fig. 1.
Fig. 1.

Image of the fiber facet, showing the 80 μm diameter core and the 220 μm diameter inner cladding.

Fig. 2.
Fig. 2.

Schematic of the counterpropagating cavity. f 1 , f 2 : collimating lenses, f 3 , f 4 : 1 1 pump telescope, Mp: high reflective mirror at 790 nm, W: wedge with 4% reflectivity at 2 μm. Configuration A: M: high reflective mirror at 2 μm. Configuration B: MOPA as seed.

Fig. 3.
Fig. 3.

Slope efficiencies for CW-lasing and amplification at 1961 nm with respect to absorbed power.

Fig. 4.
Fig. 4.

Spectra of ASE at 17 W pump power. Lasing and amplification at 70 W pump power.

Fig. 5.
Fig. 5.

Right: M 2 of amplified signal measured at 20 W output power. Left: beam in the far field.

Fig. 6.
Fig. 6.

Slope efficiencies and thresholds for selected wavelengths.

Metrics