Abstract

A novel approach to achieving robust single-spatial-mode operation of cladding-pumped fiber lasers with multimode cores is reported. The approach is based on the use of a fiber geometry in which the core has a helical trajectory within the inner cladding to suppress laser oscillation on higher-order modes. In a preliminary proof-of-principle study, efficient single-mode operation of a cladding-pumped ytterbium-doped helical-core fiber laser with a 30μm diameter core and a numerical aperture of 0.087 has been demonstrated. The laser yielded 60.4W of output at 1043nm in a beam with M2<1.4 for 92.6W launched pump power from a diode stack at 976nm. The slope efficiency at pump powers well above threshold was 84%, which compares favorably with the slope efficiencies achievable with conventional straight-core Yb-doped double-clad fiber lasers.

© 2006 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. Y. Jeong, J. K. Sahu, D. N. Payne, and J. Nilsson, Electron. Lett. 40, 470 (2004).
    [CrossRef]
  2. J. Limpert, A. Liem, H. Zellmer, and A. Tunnermann, Electron. Lett. 39, 645 (2003).
    [CrossRef]
  3. J. P. Koplow, D. A. V. Kliner, and L. Goldberg, Opt. Lett. 25, 442 (2000).
    [CrossRef]
  4. P. Wang, L. J. Cooper, W. A. Clarkson, J. Nilsson, R. B. Williams, J. Sahu, and A. K. Vogel, Electron. Lett. 40, 1325 (2004).
    [CrossRef]
  5. W. A. Clarkson, L. J. Cooper, P. Wang, R. B. Williams, and J. K. Sahu, in Advanced Solid-State Photonics, J.Zayhowski, ed., Vol. 83 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp. 261-267.
  6. D. Marcuse, J. Opt. Soc. Am. 66, 1025 (1976).
    [CrossRef]

2004

Y. Jeong, J. K. Sahu, D. N. Payne, and J. Nilsson, Electron. Lett. 40, 470 (2004).
[CrossRef]

P. Wang, L. J. Cooper, W. A. Clarkson, J. Nilsson, R. B. Williams, J. Sahu, and A. K. Vogel, Electron. Lett. 40, 1325 (2004).
[CrossRef]

2003

J. Limpert, A. Liem, H. Zellmer, and A. Tunnermann, Electron. Lett. 39, 645 (2003).
[CrossRef]

2000

1976

Clarkson, W. A.

P. Wang, L. J. Cooper, W. A. Clarkson, J. Nilsson, R. B. Williams, J. Sahu, and A. K. Vogel, Electron. Lett. 40, 1325 (2004).
[CrossRef]

W. A. Clarkson, L. J. Cooper, P. Wang, R. B. Williams, and J. K. Sahu, in Advanced Solid-State Photonics, J.Zayhowski, ed., Vol. 83 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp. 261-267.

Cooper, L. J.

P. Wang, L. J. Cooper, W. A. Clarkson, J. Nilsson, R. B. Williams, J. Sahu, and A. K. Vogel, Electron. Lett. 40, 1325 (2004).
[CrossRef]

W. A. Clarkson, L. J. Cooper, P. Wang, R. B. Williams, and J. K. Sahu, in Advanced Solid-State Photonics, J.Zayhowski, ed., Vol. 83 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp. 261-267.

Goldberg, L.

Jeong, Y.

Y. Jeong, J. K. Sahu, D. N. Payne, and J. Nilsson, Electron. Lett. 40, 470 (2004).
[CrossRef]

Kliner, D. A. V.

Koplow, J. P.

Liem, A.

J. Limpert, A. Liem, H. Zellmer, and A. Tunnermann, Electron. Lett. 39, 645 (2003).
[CrossRef]

Limpert, J.

J. Limpert, A. Liem, H. Zellmer, and A. Tunnermann, Electron. Lett. 39, 645 (2003).
[CrossRef]

Marcuse, D.

Nilsson, J.

Y. Jeong, J. K. Sahu, D. N. Payne, and J. Nilsson, Electron. Lett. 40, 470 (2004).
[CrossRef]

P. Wang, L. J. Cooper, W. A. Clarkson, J. Nilsson, R. B. Williams, J. Sahu, and A. K. Vogel, Electron. Lett. 40, 1325 (2004).
[CrossRef]

Payne, D. N.

Y. Jeong, J. K. Sahu, D. N. Payne, and J. Nilsson, Electron. Lett. 40, 470 (2004).
[CrossRef]

Sahu, J.

P. Wang, L. J. Cooper, W. A. Clarkson, J. Nilsson, R. B. Williams, J. Sahu, and A. K. Vogel, Electron. Lett. 40, 1325 (2004).
[CrossRef]

Sahu, J. K.

Y. Jeong, J. K. Sahu, D. N. Payne, and J. Nilsson, Electron. Lett. 40, 470 (2004).
[CrossRef]

W. A. Clarkson, L. J. Cooper, P. Wang, R. B. Williams, and J. K. Sahu, in Advanced Solid-State Photonics, J.Zayhowski, ed., Vol. 83 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp. 261-267.

Tunnermann, A.

J. Limpert, A. Liem, H. Zellmer, and A. Tunnermann, Electron. Lett. 39, 645 (2003).
[CrossRef]

Vogel, A. K.

P. Wang, L. J. Cooper, W. A. Clarkson, J. Nilsson, R. B. Williams, J. Sahu, and A. K. Vogel, Electron. Lett. 40, 1325 (2004).
[CrossRef]

Wang, P.

P. Wang, L. J. Cooper, W. A. Clarkson, J. Nilsson, R. B. Williams, J. Sahu, and A. K. Vogel, Electron. Lett. 40, 1325 (2004).
[CrossRef]

W. A. Clarkson, L. J. Cooper, P. Wang, R. B. Williams, and J. K. Sahu, in Advanced Solid-State Photonics, J.Zayhowski, ed., Vol. 83 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp. 261-267.

Williams, R. B.

P. Wang, L. J. Cooper, W. A. Clarkson, J. Nilsson, R. B. Williams, J. Sahu, and A. K. Vogel, Electron. Lett. 40, 1325 (2004).
[CrossRef]

W. A. Clarkson, L. J. Cooper, P. Wang, R. B. Williams, and J. K. Sahu, in Advanced Solid-State Photonics, J.Zayhowski, ed., Vol. 83 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp. 261-267.

Zellmer, H.

J. Limpert, A. Liem, H. Zellmer, and A. Tunnermann, Electron. Lett. 39, 645 (2003).
[CrossRef]

Electron. Lett.

Y. Jeong, J. K. Sahu, D. N. Payne, and J. Nilsson, Electron. Lett. 40, 470 (2004).
[CrossRef]

J. Limpert, A. Liem, H. Zellmer, and A. Tunnermann, Electron. Lett. 39, 645 (2003).
[CrossRef]

P. Wang, L. J. Cooper, W. A. Clarkson, J. Nilsson, R. B. Williams, J. Sahu, and A. K. Vogel, Electron. Lett. 40, 1325 (2004).
[CrossRef]

J. Opt. Soc. Am.

Opt. Lett.

Other

W. A. Clarkson, L. J. Cooper, P. Wang, R. B. Williams, and J. K. Sahu, in Advanced Solid-State Photonics, J.Zayhowski, ed., Vol. 83 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp. 261-267.

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

Schematic diagram of a helical-core fiber.

Fig. 2
Fig. 2

Calculated propagation loss for the LP 01 and LP 11 modes versus pitch.

Fig. 3
Fig. 3

Cladding pumped Yb-doped helical-core fiber laser arrangement: T, transmission of the dichroic mirror.

Fig. 4
Fig. 4

(Color online) Beam propagation factor ( M 2 ) versus pitch at 10 W output power. a, Beam profile for an 8.5 mm pitch helical-core fiber laser; b, beam profile for a straight-core fiber laser.

Fig. 5
Fig. 5

Output power versus launched pump power for the 8.5 mm pitch helical-core fiber.

Metrics