Abstract

In side pumped laser head geometries good extraction of energy has to be weighted against diffraction effects of the amplified beam. Beam clipping at the aperture of laser rods can be avoided by using an undoped cladding around the doped core. The wings of e.g. Gaussian beams can be accommodated in the cladding. Phase distortion by the refractive index step of the rod can be compensated by a phase conjugating mirror in double pass configuration. In our proof of principle experiment the brightness of the beam from core doped amplifier rods was shown to be doubled compared to a conventional rod of the same outer diameter.

© 2006 Optical Society of America

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References

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  1. M. Ostermeyer, and I. Brandenburg, "Simulation of the extraction of near diffraction limited Gaussian beams from side pumped core doped ceramic Nd:YAG and conventional laser rods," Opt. Express 13,10145-10156 (2005)
    [CrossRef] [PubMed]
  2. A. Lucianetti, R. Weber, W. Hodel, H. P. Weber, A. Papashvili, V. A. Konyushkin, and T. T. Basiev, "Beam-quality improvement of a passively Q-switched Nd:YAG laser with a core-doped rod," Appl. Opt. 38,1777 (1999)
    [CrossRef]
  3. L. Jianren, M. Prabhu, X. Jianqiu, K. Ueda, H. Yagi, T. Yanagitani and A. A. Kaminski, "High efficient 2% Nd:yttrium aluminum garnet ceramic laser," Appl. Phys. Lett. 78,3707-3709 (2000)
  4. J. Lu, M. Prabhu, K, Ueda, H. Yagi, T. Yanagitani, A. Kudryashov and A. A. Kaminski, "Potential of Ceramic YAG Lasers," Laser Phys. 78,1053-1057 (2001)
  5. D. Kracht, D. Freiburg, R. Wilhelm, M. Frede, and C. Fallnich, "Core-doped Ceramic Nd:YAG Laser," Opt. Express 14,2590 (2006)
    [CrossRef]
  6. T. Dascalu, T. Taira, and N. Pavel, "100-W quasi-continuous-wave diode radially pumped microchip composite Yb:YAG laser," Opt. Lett.  27,1792 (2002)
    [CrossRef]
  7. Y. Jeong J. K. Sahu, and D. N. Payne, "Ytterbium-doped large-core fiber laser with 1.36 kW continuous-wave output power," Opt. Express 12, 6088-6092 (2004)
    [CrossRef] [PubMed]
  8. L. M. Frantz, and J. S. Nodvik, "Theory of pulse propagation in a laser amplifier," J. Appl. Phys. 342346-2349 (1963)
    [CrossRef]
  9. W. Koechner, Solid-State Laser Engineering, (Springer, 5th Edition) Chapter 4.1
  10. N. Hodgson, and H. Weber, Optical Resonators, (Springer, 1997) Chapter 9.3
  11. Baikowski Chimie, BP 501, F-74339 La Balme de Sillingy cedex, France
  12. N. Hodgson, and H. Weber, Optical Resonators, (Springer, 1997) Chapter 22.1.2
  13. W. A. Clarkson, N. S. Felgate, and D. C. Hanna, "Simple method for reducing the depolarization loss resulting from thermally induced birefringence in solid-state lasers," Opt. Lett. 24,820-822 (1999)
    [CrossRef]
  14. A. Heuer, and R. Menzel, "Self Pumped Phase Conjugation by Stimulated Brillouin Scattering" in "Phase Conjugate Laser Optics," edited by A. Brignon, and J. P. Huignard, (Wiley-Interscience, New York, 2003)

2006 (1)

D. Kracht, D. Freiburg, R. Wilhelm, M. Frede, and C. Fallnich, "Core-doped Ceramic Nd:YAG Laser," Opt. Express 14,2590 (2006)
[CrossRef]

2005 (1)

2004 (1)

2001 (1)

J. Lu, M. Prabhu, K, Ueda, H. Yagi, T. Yanagitani, A. Kudryashov and A. A. Kaminski, "Potential of Ceramic YAG Lasers," Laser Phys. 78,1053-1057 (2001)

2000 (1)

L. Jianren, M. Prabhu, X. Jianqiu, K. Ueda, H. Yagi, T. Yanagitani and A. A. Kaminski, "High efficient 2% Nd:yttrium aluminum garnet ceramic laser," Appl. Phys. Lett. 78,3707-3709 (2000)

1999 (2)

1963 (1)

L. M. Frantz, and J. S. Nodvik, "Theory of pulse propagation in a laser amplifier," J. Appl. Phys. 342346-2349 (1963)
[CrossRef]

Basiev, T. T.

Brandenburg, I.

Clarkson, W. A.

Fallnich, C.

D. Kracht, D. Freiburg, R. Wilhelm, M. Frede, and C. Fallnich, "Core-doped Ceramic Nd:YAG Laser," Opt. Express 14,2590 (2006)
[CrossRef]

Felgate, N. S.

Frantz, L. M.

L. M. Frantz, and J. S. Nodvik, "Theory of pulse propagation in a laser amplifier," J. Appl. Phys. 342346-2349 (1963)
[CrossRef]

Frede, M.

D. Kracht, D. Freiburg, R. Wilhelm, M. Frede, and C. Fallnich, "Core-doped Ceramic Nd:YAG Laser," Opt. Express 14,2590 (2006)
[CrossRef]

Freiburg, D.

D. Kracht, D. Freiburg, R. Wilhelm, M. Frede, and C. Fallnich, "Core-doped Ceramic Nd:YAG Laser," Opt. Express 14,2590 (2006)
[CrossRef]

Hanna, D. C.

Hodel, W.

Jianqiu, X.

L. Jianren, M. Prabhu, X. Jianqiu, K. Ueda, H. Yagi, T. Yanagitani and A. A. Kaminski, "High efficient 2% Nd:yttrium aluminum garnet ceramic laser," Appl. Phys. Lett. 78,3707-3709 (2000)

Jianren, L.

L. Jianren, M. Prabhu, X. Jianqiu, K. Ueda, H. Yagi, T. Yanagitani and A. A. Kaminski, "High efficient 2% Nd:yttrium aluminum garnet ceramic laser," Appl. Phys. Lett. 78,3707-3709 (2000)

Kaminski, A. A.

L. Jianren, M. Prabhu, X. Jianqiu, K. Ueda, H. Yagi, T. Yanagitani and A. A. Kaminski, "High efficient 2% Nd:yttrium aluminum garnet ceramic laser," Appl. Phys. Lett. 78,3707-3709 (2000)

Konyushkin, V. A.

Kracht, D.

D. Kracht, D. Freiburg, R. Wilhelm, M. Frede, and C. Fallnich, "Core-doped Ceramic Nd:YAG Laser," Opt. Express 14,2590 (2006)
[CrossRef]

Lu, J.

J. Lu, M. Prabhu, K, Ueda, H. Yagi, T. Yanagitani, A. Kudryashov and A. A. Kaminski, "Potential of Ceramic YAG Lasers," Laser Phys. 78,1053-1057 (2001)

Lucianetti, A.

Nodvik, J. S.

L. M. Frantz, and J. S. Nodvik, "Theory of pulse propagation in a laser amplifier," J. Appl. Phys. 342346-2349 (1963)
[CrossRef]

Ostermeyer, M.

Papashvili, A.

Prabhu, M.

J. Lu, M. Prabhu, K, Ueda, H. Yagi, T. Yanagitani, A. Kudryashov and A. A. Kaminski, "Potential of Ceramic YAG Lasers," Laser Phys. 78,1053-1057 (2001)

L. Jianren, M. Prabhu, X. Jianqiu, K. Ueda, H. Yagi, T. Yanagitani and A. A. Kaminski, "High efficient 2% Nd:yttrium aluminum garnet ceramic laser," Appl. Phys. Lett. 78,3707-3709 (2000)

Ueda, K.

L. Jianren, M. Prabhu, X. Jianqiu, K. Ueda, H. Yagi, T. Yanagitani and A. A. Kaminski, "High efficient 2% Nd:yttrium aluminum garnet ceramic laser," Appl. Phys. Lett. 78,3707-3709 (2000)

Weber, H. P.

Weber, R.

Wilhelm, R.

D. Kracht, D. Freiburg, R. Wilhelm, M. Frede, and C. Fallnich, "Core-doped Ceramic Nd:YAG Laser," Opt. Express 14,2590 (2006)
[CrossRef]

Yagi, H.

L. Jianren, M. Prabhu, X. Jianqiu, K. Ueda, H. Yagi, T. Yanagitani and A. A. Kaminski, "High efficient 2% Nd:yttrium aluminum garnet ceramic laser," Appl. Phys. Lett. 78,3707-3709 (2000)

Yanagitani, T.

L. Jianren, M. Prabhu, X. Jianqiu, K. Ueda, H. Yagi, T. Yanagitani and A. A. Kaminski, "High efficient 2% Nd:yttrium aluminum garnet ceramic laser," Appl. Phys. Lett. 78,3707-3709 (2000)

Appl. Opt. (1)

Appl. Phys. Lett. (1)

L. Jianren, M. Prabhu, X. Jianqiu, K. Ueda, H. Yagi, T. Yanagitani and A. A. Kaminski, "High efficient 2% Nd:yttrium aluminum garnet ceramic laser," Appl. Phys. Lett. 78,3707-3709 (2000)

J. Appl. Phys. (1)

L. M. Frantz, and J. S. Nodvik, "Theory of pulse propagation in a laser amplifier," J. Appl. Phys. 342346-2349 (1963)
[CrossRef]

Laser Phys. (1)

J. Lu, M. Prabhu, K, Ueda, H. Yagi, T. Yanagitani, A. Kudryashov and A. A. Kaminski, "Potential of Ceramic YAG Lasers," Laser Phys. 78,1053-1057 (2001)

Opt. Express (3)

Opt. Lett. (1)

Other (6)

T. Dascalu, T. Taira, and N. Pavel, "100-W quasi-continuous-wave diode radially pumped microchip composite Yb:YAG laser," Opt. Lett.  27,1792 (2002)
[CrossRef]

W. Koechner, Solid-State Laser Engineering, (Springer, 5th Edition) Chapter 4.1

N. Hodgson, and H. Weber, Optical Resonators, (Springer, 1997) Chapter 9.3

Baikowski Chimie, BP 501, F-74339 La Balme de Sillingy cedex, France

N. Hodgson, and H. Weber, Optical Resonators, (Springer, 1997) Chapter 22.1.2

A. Heuer, and R. Menzel, "Self Pumped Phase Conjugation by Stimulated Brillouin Scattering" in "Phase Conjugate Laser Optics," edited by A. Brignon, and J. P. Huignard, (Wiley-Interscience, New York, 2003)

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Figures (5)

Fig. 1.
Fig. 1.

Refractive index profile in core doped Nd:YAG ceramic rod with 3mm core diameter.

Fig. 2.
Fig. 2.

(a) Calculated ratio of extracted pulse energies of two Gaussian beams with 2.5 mm and 1.5 mm radius from a 5 mm diameter Nd:YAG rod in double pass configuration as a function of input energy. The output energy is given in addition. The rod is pumped with 2 kW for 200 μs with an excitation efficiency of 70 %.(b) and (c) show the measured far field distributions for a probe beam with 1.5 mm and 2.5 mm radius behind the propagation through a 12 cm long 5 mm diameter laser rod without amplification.

Fig. 3.
Fig. 3.

Oscillator power amplifier (MOPA) arrangement to investigate the potential benefits of the core doped ceramics rods.

Fig. 4.
Fig. 4.

Comparison of extracted pulse energies form conventional and core doped laser rods with conventional HR-mirror in double pass configuration. The full data points show measured pulse energies, the hollow points show calculated pulse energies following a spatially resolved Frantz-Nodvik model.

Fig. 5.
Fig. 5.

Extracted pulse energies with and without phase conjugating SBS-mirror in double pass configuration for the rods with 4 mm doped core (top) and 3 mm doped core(bottom). The single pass extracted energies are given in addition.

Tables (1)

Tables Icon

Table 1. Measured M2-factors for 3 different MOPA-configurations. OD refers to the rod’s outer diameters and ID to the rod’s inner diameter.

Metrics