Abstract

We have demonstrated a highly-efficient cladding-pumped ytterbium-doped fiber laser generating 1.36 kW of continuous-wave output power at 1.1 µm with 83% slope efficiency and near diffraction-limited beam quality. The laser was end-pumped through both fiber ends and showed no evidence of roll-over even at the highest output power, which was limited only by available pump power.

© 2004 Optical Society of America

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References

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  1. H. Zellmer, A. Tünnermann, H. Welling, and V. Reichel, ???Double-clad fiber with 30 W output power,??? in OSA TOPS: Proc. OAA 16, 137-140 (1997).
  2. V. Dominic, S. MacCormack, R. Waarts, S. Sanders, S. Bicknese, R. Dohle, E. Wolak, P. S. Yeh, and E. Zucker, ???110 W fibre laser,??? Electron. Lett. 35, 1158-1160 (1999).
    [CrossRef]
  3. N. S. Platonov D. V. Gapontsev, V. P. Gapontsev, and V. Shumilin., ???135 W CW fiber laser with perfect single mode output,??? in Proc. Conference on Lasers and Electro-Optics 2002, Long Beach, USA, May 19- 24, 2002, postdeadline paper CPDC3.
  4. Y. Jeong, J. K. Sahu, R. B. Williams, D. J. Richardson, K. Furusawa, J. Nilsson, ???Ytterbium-doped largecore fibre laser with 272 W output power,??? Electron. Lett. 39, 977-978 (2003).
    [CrossRef]
  5. V. P. Gapontsev, N. S. Platonov, O. Shkurihin, and I. Zaitsev, ???400 W low-noise single-mode cw ytterbium fiber laser with an integrated fiber delivery,??? in Proc. Conference on Lasers and Electro-Optics 2003, Baltimore, USA, June 1-6, 2003, postdeadline paper CThPDB9.
  6. J. Limpert, A. Liem, H. Zellmer, and A. Tünnermann, ???500 W continuous-wave fibre laser with excellent beam quality,??? Electron. Lett. 39, 645-647 (2003).
    [CrossRef]
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    [CrossRef]
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    [CrossRef]
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  11. K.-I. Ueda, H. Sekiguchi, and H. Kan, ???1 kW CW output from fiber-embedded disk lasers,??? in Proc. Conference on Lasers and Electro-Optics 2002, Long Beach, USA, May 19-24, 2002, postdeadline paper CPDC4.
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    [CrossRef]
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Appl. Opt.

Electron. Lett.

J. Limpert, A. Liem, H. Zellmer, and A. Tünnermann, ???500 W continuous-wave fibre laser with excellent beam quality,??? Electron. Lett. 39, 645-647 (2003).
[CrossRef]

V. Dominic, S. MacCormack, R. Waarts, S. Sanders, S. Bicknese, R. Dohle, E. Wolak, P. S. Yeh, and E. Zucker, ???110 W fibre laser,??? Electron. Lett. 35, 1158-1160 (1999).
[CrossRef]

Y. Jeong, J. K. Sahu, R. B. Williams, D. J. Richardson, K. Furusawa, J. Nilsson, ???Ytterbium-doped largecore fibre laser with 272 W output power,??? Electron. Lett. 39, 977-978 (2003).
[CrossRef]

Y. Jeong, J. K. Sahu, D. N. Payne, and J. Nilsson, ???Ytterbium-doped large-core fibre laser with 1 kW of continuous-wave output power,??? Electron. Lett. 40, 470-471 (2004).
[CrossRef]

J. Opt. Soc. Am. B.

D. Marcuse, ???Curvature loss formula for optical fibers,??? J. Opt. Soc. Am. 66, 216-219 (1976).
[CrossRef]

Opt. Commun.

Y. Jeong, J. K. Sahu, S. Baek, C. Alegria, D. B. S. Soh, C. Codemard, and J. Nilsson, ???Cladding-pumped ytterbium-doped large-core fiber laser with 610 W of output power,??? Opt. Commun. 234, 315-319 (2004).
[CrossRef]

Proc Advanced Solid State Photonics

C.-H. Liu, A. Galvanauskas, B. Ehlers, F. Doerfel, S. Heinemann, A. Carter, K. Tankala, and J. Farroni, ???810-W single transverse mode Yb-doped fiber laser???, in Proc Advanced Solid State Photonics, Santa Fe, New Mexico, USA, February 1-4, 2004, post-deadline paper PDP2.

Proc. Conference CLEO 2002

N. S. Platonov D. V. Gapontsev, V. P. Gapontsev, and V. Shumilin., ???135 W CW fiber laser with perfect single mode output,??? in Proc. Conference on Lasers and Electro-Optics 2002, Long Beach, USA, May 19- 24, 2002, postdeadline paper CPDC3.

Proc. CLEO 1999

J. A. Alvarez-Chavez, A. B. Grudinin, J. Nilsson, P. W. Turner, and W. A. Clarkson, ???Mode selection in high power cladding pumped fibre lasers with tapered section,??? in Proc. Conference on Lasers and Electro- Optics 1999, Baltimore, USA, May 23-28, 1999, paper CWE7.

Proc. CLEO 2004

A. Liem, J. Limpert, H. Zellmer, A. Tünnermann, V. Reichel, K. Mörl, S. Jetschke, S. Unger, H.-R. Müller, J. Kirchhof, T. Sandrock, A. Harschak, ???1.3 kW Yb-doped fiber laser with excellent beam quality,??? in Proc. Conference on Lasers and Electro-Optics 2004, San Francisco, USA, May 16-21, 2004, postdeadline paper CPDD2.

Proc. Conference CLEO 2002

K.-I. Ueda, H. Sekiguchi, and H. Kan, ???1 kW CW output from fiber-embedded disk lasers,??? in Proc. Conference on Lasers and Electro-Optics 2002, Long Beach, USA, May 19-24, 2002, postdeadline paper CPDC4.

Proc. Conference CLEO 2003

V. P. Gapontsev, N. S. Platonov, O. Shkurihin, and I. Zaitsev, ???400 W low-noise single-mode cw ytterbium fiber laser with an integrated fiber delivery,??? in Proc. Conference on Lasers and Electro-Optics 2003, Baltimore, USA, June 1-6, 2003, postdeadline paper CThPDB9.

Proc. OAA

H. Zellmer, A. Tünnermann, H. Welling, and V. Reichel, ???Double-clad fiber with 30 W output power,??? in OSA TOPS: Proc. OAA 16, 137-140 (1997).

Other

D. Marcuse, Theory of Dielectric Optical Waveguides, 2nd ed. (Academic, New York, 1991).

G. P. Agrawal, Nonlinear Fiber Optics, 3rd ed. (Academic, New York, 2001).

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Figures (2)

Fig. 1.
Fig. 1.

YDFL experimental arrangement with two diode-stack pump sources. HR: high reflectivity, HT: high transmission.

Fig. 2.
Fig. 2.

(a) Fiber laser output power vs. launched pump power. (b) Laser output spectrum at full power.

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