Abstract

A highly efficient and widely tunable narrow linewidth ytterbium-doped double-clad fiber laser with a linearly polarized output power of 10 W is demonstrated. The laser wavelength was tunable over a range of 24 THz from 1032 nm to 1124 nm by using a diffraction-grating pair in Littrow-Littman configuration in a unidirectional ring-cavity. The laser linewidth was smaller than 2.5 GHz for all power levels and all laser wavelengths. Additionally, an operating mode without any measurable amplified spontaneous emission with a linearly polarized output power of up to 3 W was realized.

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References

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  1. V. Dominic, S. MacCormack, R. Waarts, S. Sanders, S. Bicknese, R. Dohle, E. Wolak, P.S. Yeh and E. Zucker, ?110W fibre laser,? Electron. Lett. 35, 1158 (1999).
    [CrossRef]
  2. H. Zellmer, A. T?nnermann, H. Welling, V. Reichel, ?Double-Clad Fiber Laser with 30 W Output Power,? in: Optical Amplifiers and their Applications (Optical Society of America, Washington D.C.), paper WC7-1, 251 (1997).
  3. L. Zenteno, ?High-Power Double-Clad Fiber Lasers,? J. Lightwave Technol. 11, 1435 (1993).
    [CrossRef]
  4. P. Mollier, V. Armbruster, H. Porte and J.P. Goedgebuer, ?Electrically tunable Nd3+-doped fibre laser using nematic liquid crystals,? Electron. Lett. 31, 1248 (1995).
    [CrossRef]
  5. J. Nilsson, J.A. Alvarez-Chavez, P.W. Turner, W.A. Clarkson, C.C. Renaud and A.B. Grudinin, ?Widely tunable high-power diode-pumped double-clad Yb3+-doped fiber laser,? in: Advanced Solid State Lasers, Technical Digest, 147 (1999).
  6. M. Auerbach, D. Wandt, C. Fallnich, H. Welling, S. Unger, ?High-power tunable narrow line width ytterbiumdoped double-clad fiber laser,? Opt. Commun. 195, 437 (2001).
    [CrossRef]
  7. A. Hideur, T. Chartier, C. ?zkul and F. Sanchez, ?Dynamics and stabilization of high power side-pumped Ybdoped double-clad fiber laser,? Opt. Commun. 186, 311 (2000).
    [CrossRef]
  8. S. V. Chernikov, Y. Zhu, J. R. Taylor and V. P. Gapontsev, ?Supercontinuum self-q-switched ytterbium fiber laser,? Opt. Lett. 22, 298 (1997).
    [CrossRef]
  9. V. Reichel, S. Unger, V. Hagemann, H.-R. M?ller, M. Auerbach, ?8 W highly-efficient Yb-doped Fiber- Laser,? in: Advanced High-Power Lasers, Proc. SPIE 3889 Paper 3889-16 (Osaka, Japan), (1999).
  10. D. Wandt, M. Laschek, A. T?nnermann and H. Welling, ?Continuously tunable external-cavity diode laser with a double-grating arrangement,? Opt. Lett. 22, 390 (1997).
    [CrossRef]
  11. P. Adel, M. Auerbach, C. Fallnich, H. Welling: ?Super-Streched mode-locked Yb3+-fiber laser with 33 nm bandwidth and 56 nJ pulse energy? in: OSA Trends in Optics and Photonics TOPS, Vol. 50, Advanced Solid State Lasers (ASSL 2001), Christopher Marshall, ed. (Optical Society of America, Washington DC, 2001), 359.
  12. H. M. Pask, R. J. Carman, D. C. Hanna, A. C. Tropper, C. J. Mackechnie, P. R. Barber and J. M. Dawes, ?Ytterbium-Doped Silica Fiber Lasers: Versatile Sources for the 1-1.2 ?m Region,? IEEE J. Selected Top. Quant. Elec. 1, 2 (1995).
  13. P. Gro?, M.E. Klein, T. Walde, K.-J. Boller, M. Auerbach, P. We?els, C. Fallnich, ?Fiber laser pumped continuous-wave singly-resonant optical parametric oscillator,? accepted for publication in Opt. Lett

Advanced Solid State Lasers

J. Nilsson, J.A. Alvarez-Chavez, P.W. Turner, W.A. Clarkson, C.C. Renaud and A.B. Grudinin, ?Widely tunable high-power diode-pumped double-clad Yb3+-doped fiber laser,? in: Advanced Solid State Lasers, Technical Digest, 147 (1999).

P. Adel, M. Auerbach, C. Fallnich, H. Welling: ?Super-Streched mode-locked Yb3+-fiber laser with 33 nm bandwidth and 56 nJ pulse energy? in: OSA Trends in Optics and Photonics TOPS, Vol. 50, Advanced Solid State Lasers (ASSL 2001), Christopher Marshall, ed. (Optical Society of America, Washington DC, 2001), 359.

Electron. Lett.

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

P. Mollier, V. Armbruster, H. Porte and J.P. Goedgebuer, ?Electrically tunable Nd3+-doped fibre laser using nematic liquid crystals,? Electron. Lett. 31, 1248 (1995).
[CrossRef]

IEEE J. Selected Top. Quant. Elec.

H. M. Pask, R. J. Carman, D. C. Hanna, A. C. Tropper, C. J. Mackechnie, P. R. Barber and J. M. Dawes, ?Ytterbium-Doped Silica Fiber Lasers: Versatile Sources for the 1-1.2 ?m Region,? IEEE J. Selected Top. Quant. Elec. 1, 2 (1995).

J. Lightwave Technol.

L. Zenteno, ?High-Power Double-Clad Fiber Lasers,? J. Lightwave Technol. 11, 1435 (1993).
[CrossRef]

Opt. Commun

A. Hideur, T. Chartier, C. ?zkul and F. Sanchez, ?Dynamics and stabilization of high power side-pumped Ybdoped double-clad fiber laser,? Opt. Commun. 186, 311 (2000).
[CrossRef]

Opt. Commun.

M. Auerbach, D. Wandt, C. Fallnich, H. Welling, S. Unger, ?High-power tunable narrow line width ytterbiumdoped double-clad fiber laser,? Opt. Commun. 195, 437 (2001).
[CrossRef]

Opt. Lett

D. Wandt, M. Laschek, A. T?nnermann and H. Welling, ?Continuously tunable external-cavity diode laser with a double-grating arrangement,? Opt. Lett. 22, 390 (1997).
[CrossRef]

Opt. Lett.

P. Gro?, M.E. Klein, T. Walde, K.-J. Boller, M. Auerbach, P. We?els, C. Fallnich, ?Fiber laser pumped continuous-wave singly-resonant optical parametric oscillator,? accepted for publication in Opt. Lett

S. V. Chernikov, Y. Zhu, J. R. Taylor and V. P. Gapontsev, ?Supercontinuum self-q-switched ytterbium fiber laser,? Opt. Lett. 22, 298 (1997).
[CrossRef]

Optical Amplifiers and their Application

H. Zellmer, A. T?nnermann, H. Welling, V. Reichel, ?Double-Clad Fiber Laser with 30 W Output Power,? in: Optical Amplifiers and their Applications (Optical Society of America, Washington D.C.), paper WC7-1, 251 (1997).

Proc. SPIE

V. Reichel, S. Unger, V. Hagemann, H.-R. M?ller, M. Auerbach, ?8 W highly-efficient Yb-doped Fiber- Laser,? in: Advanced High-Power Lasers, Proc. SPIE 3889 Paper 3889-16 (Osaka, Japan), (1999).

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Figures (5)

Fig. 1:
Fig. 1:

Experimental setup: see text for details.

Fig. 2:
Fig. 2:

Laser output power versus absorbed pump power for a signal wavelength of 1080 nm.

Fig. 3:
Fig. 3:

Output power and slope efficiency versus emission wavelength. The tuning curves are shown for four different pump power levels.

Fig. 4:
Fig. 4:

Emission spectra at the center of the tuning range for high-power operation and ASE-free operation. The broad signal around 1060 nm is an artefact of the spectrum analyzer.

Fig. 5:
Fig. 5:

Relative amount of the ASE on the output power for high-power and ASE-free operation, both for a pump power of 29 W. The measurement sensitivity of the optical spectrum analyzer is illustrated by the solid curve with the open squares.

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