Abstract

A theoretical calculation of pump power deposition in a direct water-cooled Nd:YAG laser rod, side pumped by three diode laser bars is presented. The pumping cavity design provides a nearly uniform pump profile. More than 30-W cw output power with optical-to-optical efficiencies of more than 30% are obtained.

© 1998 Optical Society of America

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References

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    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
  13. J. E. Murray, “Pulsed gain and thermal lensing of Nd:YLF,” IEEE J. Quantum Electron. QE-19, 488–491 (1983).
    [CrossRef]
  14. C. Pfistner, R. Weber, H. P. Weber, S. Merazzi, R. Gruber, “Thermal beam distortions in end-pumped Nd:YAG, Nd:GSGG, and Nd:YLF rods,” IEEE J. Quantum Electron. 30, 1605–1615 (1994).
    [CrossRef]
  15. V. Magni, G. Cerullo, S. De Silvestri, O. Svelto, L. J. Qian, M. Danailov, “Intracavity frequency doubling of a cw high-power TEM00 Nd:YLF laser,” Opt. Lett. 18, 2111–2113 (1993).
    [CrossRef] [PubMed]

1997

J. Zhang, M. Quade, Y. Liao, S. Falter, K. M. Du, P. Loosen, “Polarization characteristics of a Nd:YAG laser side pumped by diode laser bars,” Appl. Opt. 36, 7725–7729 (1997).
[CrossRef]

K. M. Du, Y. Liao, S. Falter, J. Zhang, M. Quade, P. Loosen, R. Poprawe, “Nd:YAG slab laser end-pumped by laser-diode stacks and its beam shaping,” Opt. Commun. 140, 53–58 (1997).
[CrossRef]

1996

1995

1994

C. Pfistner, R. Weber, H. P. Weber, S. Merazzi, R. Gruber, “Thermal beam distortions in end-pumped Nd:YAG, Nd:GSGG, and Nd:YLF rods,” IEEE J. Quantum Electron. 30, 1605–1615 (1994).
[CrossRef]

1993

V. Magni, G. Cerullo, S. De Silvestri, O. Svelto, L. J. Qian, M. Danailov, “Intracavity frequency doubling of a cw high-power TEM00 Nd:YLF laser,” Opt. Lett. 18, 2111–2113 (1993).
[CrossRef] [PubMed]

N. Hodgson, H. Weber, “Influence of spherical aberration of the active medium on the performance of Nd:YAG lasers,” IEEE J. Quantum Electron. 29, 2497–2507 (1993).
[CrossRef]

1986

1983

J. E. Murray, “Pulsed gain and thermal lensing of Nd:YLF,” IEEE J. Quantum Electron. QE-19, 488–491 (1983).
[CrossRef]

1982

T. M. Pollak, W. F. Wing, R. J. Grasso, E. P. Chicklis, H. P. Jenssen, “CW laser operation of Nd:YLF,” IEEE J. Quantum Electron. QE-18, 159–163 (1982).
[CrossRef]

Alfrey, A. J.

Bode, M.

Bruesselbach, H.

Byer, R. L.

Cerullo, G.

Chicklis, E. P.

T. M. Pollak, W. F. Wing, R. J. Grasso, E. P. Chicklis, H. P. Jenssen, “CW laser operation of Nd:YLF,” IEEE J. Quantum Electron. QE-18, 159–163 (1982).
[CrossRef]

Danailov, M.

De Silvestri, S.

Du, K. M.

J. Zhang, M. Quade, Y. Liao, S. Falter, K. M. Du, P. Loosen, “Polarization characteristics of a Nd:YAG laser side pumped by diode laser bars,” Appl. Opt. 36, 7725–7729 (1997).
[CrossRef]

K. M. Du, Y. Liao, S. Falter, J. Zhang, M. Quade, P. Loosen, R. Poprawe, “Nd:YAG slab laser end-pumped by laser-diode stacks and its beam shaping,” Opt. Commun. 140, 53–58 (1997).
[CrossRef]

Ernst, E.

Falter, S.

K. M. Du, Y. Liao, S. Falter, J. Zhang, M. Quade, P. Loosen, R. Poprawe, “Nd:YAG slab laser end-pumped by laser-diode stacks and its beam shaping,” Opt. Commun. 140, 53–58 (1997).
[CrossRef]

J. Zhang, M. Quade, Y. Liao, S. Falter, K. M. Du, P. Loosen, “Polarization characteristics of a Nd:YAG laser side pumped by diode laser bars,” Appl. Opt. 36, 7725–7729 (1997).
[CrossRef]

Golla, D.

Grasso, R. J.

T. M. Pollak, W. F. Wing, R. J. Grasso, E. P. Chicklis, H. P. Jenssen, “CW laser operation of Nd:YLF,” IEEE J. Quantum Electron. QE-18, 159–163 (1982).
[CrossRef]

Gruber, R.

C. Pfistner, R. Weber, H. P. Weber, S. Merazzi, R. Gruber, “Thermal beam distortions in end-pumped Nd:YAG, Nd:GSGG, and Nd:YLF rods,” IEEE J. Quantum Electron. 30, 1605–1615 (1994).
[CrossRef]

Hecht, E.

E. Hecht, Optics, 2nd ed. (Addison-Wesley, Reading, Mass., 1987), pp. 94–104.

Hodgson, N.

N. Hodgson, H. Weber, “Influence of spherical aberration of the active medium on the performance of Nd:YAG lasers,” IEEE J. Quantum Electron. 29, 2497–2507 (1993).
[CrossRef]

Jackson, S. D.

Jenssen, H. P.

T. M. Pollak, W. F. Wing, R. J. Grasso, E. P. Chicklis, H. P. Jenssen, “CW laser operation of Nd:YLF,” IEEE J. Quantum Electron. QE-18, 159–163 (1982).
[CrossRef]

Knoke, S.

Liao, Y.

J. Zhang, M. Quade, Y. Liao, S. Falter, K. M. Du, P. Loosen, “Polarization characteristics of a Nd:YAG laser side pumped by diode laser bars,” Appl. Opt. 36, 7725–7729 (1997).
[CrossRef]

K. M. Du, Y. Liao, S. Falter, J. Zhang, M. Quade, P. Loosen, R. Poprawe, “Nd:YAG slab laser end-pumped by laser-diode stacks and its beam shaping,” Opt. Commun. 140, 53–58 (1997).
[CrossRef]

Loosen, P.

K. M. Du, Y. Liao, S. Falter, J. Zhang, M. Quade, P. Loosen, R. Poprawe, “Nd:YAG slab laser end-pumped by laser-diode stacks and its beam shaping,” Opt. Commun. 140, 53–58 (1997).
[CrossRef]

J. Zhang, M. Quade, Y. Liao, S. Falter, K. M. Du, P. Loosen, “Polarization characteristics of a Nd:YAG laser side pumped by diode laser bars,” Appl. Opt. 36, 7725–7729 (1997).
[CrossRef]

Magni, V.

Marshall, L. R.

L. R. Marshall, “25-W cw diode-pumped Nd:YAG laser,” in Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), pp. 18–19.

Merazzi, S.

C. Pfistner, R. Weber, H. P. Weber, S. Merazzi, R. Gruber, “Thermal beam distortions in end-pumped Nd:YAG, Nd:GSGG, and Nd:YLF rods,” IEEE J. Quantum Electron. 30, 1605–1615 (1994).
[CrossRef]

Murray, J. E.

J. E. Murray, “Pulsed gain and thermal lensing of Nd:YLF,” IEEE J. Quantum Electron. QE-19, 488–491 (1983).
[CrossRef]

Pfistner, C.

C. Pfistner, R. Weber, H. P. Weber, S. Merazzi, R. Gruber, “Thermal beam distortions in end-pumped Nd:YAG, Nd:GSGG, and Nd:YLF rods,” IEEE J. Quantum Electron. 30, 1605–1615 (1994).
[CrossRef]

Piper, J. A.

Pollak, T. M.

T. M. Pollak, W. F. Wing, R. J. Grasso, E. P. Chicklis, H. P. Jenssen, “CW laser operation of Nd:YLF,” IEEE J. Quantum Electron. QE-18, 159–163 (1982).
[CrossRef]

Poprawe, R.

K. M. Du, Y. Liao, S. Falter, J. Zhang, M. Quade, P. Loosen, R. Poprawe, “Nd:YAG slab laser end-pumped by laser-diode stacks and its beam shaping,” Opt. Commun. 140, 53–58 (1997).
[CrossRef]

Qian, L. J.

Quade, M.

K. M. Du, Y. Liao, S. Falter, J. Zhang, M. Quade, P. Loosen, R. Poprawe, “Nd:YAG slab laser end-pumped by laser-diode stacks and its beam shaping,” Opt. Commun. 140, 53–58 (1997).
[CrossRef]

J. Zhang, M. Quade, Y. Liao, S. Falter, K. M. Du, P. Loosen, “Polarization characteristics of a Nd:YAG laser side pumped by diode laser bars,” Appl. Opt. 36, 7725–7729 (1997).
[CrossRef]

Schoene, W.

Shine, R. J.

Sumida, D. S.

Svelto, O.

Tuennermann, A.

Weber, H.

N. Hodgson, H. Weber, “Influence of spherical aberration of the active medium on the performance of Nd:YAG lasers,” IEEE J. Quantum Electron. 29, 2497–2507 (1993).
[CrossRef]

Weber, H. P.

C. Pfistner, R. Weber, H. P. Weber, S. Merazzi, R. Gruber, “Thermal beam distortions in end-pumped Nd:YAG, Nd:GSGG, and Nd:YLF rods,” IEEE J. Quantum Electron. 30, 1605–1615 (1994).
[CrossRef]

Weber, R.

C. Pfistner, R. Weber, H. P. Weber, S. Merazzi, R. Gruber, “Thermal beam distortions in end-pumped Nd:YAG, Nd:GSGG, and Nd:YLF rods,” IEEE J. Quantum Electron. 30, 1605–1615 (1994).
[CrossRef]

Welling, H.

Wing, W. F.

T. M. Pollak, W. F. Wing, R. J. Grasso, E. P. Chicklis, H. P. Jenssen, “CW laser operation of Nd:YLF,” IEEE J. Quantum Electron. QE-18, 159–163 (1982).
[CrossRef]

Zhang, J.

J. Zhang, M. Quade, Y. Liao, S. Falter, K. M. Du, P. Loosen, “Polarization characteristics of a Nd:YAG laser side pumped by diode laser bars,” Appl. Opt. 36, 7725–7729 (1997).
[CrossRef]

K. M. Du, Y. Liao, S. Falter, J. Zhang, M. Quade, P. Loosen, R. Poprawe, “Nd:YAG slab laser end-pumped by laser-diode stacks and its beam shaping,” Opt. Commun. 140, 53–58 (1997).
[CrossRef]

Appl. Opt.

IEEE J. Quantum Electron.

T. M. Pollak, W. F. Wing, R. J. Grasso, E. P. Chicklis, H. P. Jenssen, “CW laser operation of Nd:YLF,” IEEE J. Quantum Electron. QE-18, 159–163 (1982).
[CrossRef]

J. E. Murray, “Pulsed gain and thermal lensing of Nd:YLF,” IEEE J. Quantum Electron. QE-19, 488–491 (1983).
[CrossRef]

C. Pfistner, R. Weber, H. P. Weber, S. Merazzi, R. Gruber, “Thermal beam distortions in end-pumped Nd:YAG, Nd:GSGG, and Nd:YLF rods,” IEEE J. Quantum Electron. 30, 1605–1615 (1994).
[CrossRef]

N. Hodgson, H. Weber, “Influence of spherical aberration of the active medium on the performance of Nd:YAG lasers,” IEEE J. Quantum Electron. 29, 2497–2507 (1993).
[CrossRef]

Opt. Commun.

K. M. Du, Y. Liao, S. Falter, J. Zhang, M. Quade, P. Loosen, R. Poprawe, “Nd:YAG slab laser end-pumped by laser-diode stacks and its beam shaping,” Opt. Commun. 140, 53–58 (1997).
[CrossRef]

Opt. Lett.

Other

L. R. Marshall, “25-W cw diode-pumped Nd:YAG laser,” in Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), pp. 18–19.

E. Hecht, Optics, 2nd ed. (Addison-Wesley, Reading, Mass., 1987), pp. 94–104.

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Figures (6)

Fig. 1
Fig. 1

Schematic diagram of the prototype laser head: (a) with volume-reflection material, and (b) with a high-reflection coating.

Fig. 2
Fig. 2

Numerical results of coupling efficiency obtained with the ray-tracing program.

Fig. 3
Fig. 3

Distribution of pump light deposition in a 3-mm rod with R K = 4.3 mm.

Fig. 4
Fig. 4

Pump distribution in a 3-mm rod (R K = 4.3 mm) with a volume-reflection pump cavity.

Fig. 5
Fig. 5

Laser performance of Nd:YAG rod lasers side pumped by three diode laser bars.

Fig. 6
Fig. 6

Laser performance of Nd:YLF rod lasers side pumped by three diode laser bars.

Equations (4)

Equations on this page are rendered with MathJax. Learn more.

P α d α = P η θ fast 2 π exp - 2 α 2 θ fast 2 d α ,
P R = P 0 n 1 cos   θ 1 - n 2 cos   θ 2 n 1 cos   θ 1 + n 2 cos   θ 2 2 ,
P T = P 0 4 n 1 n 2 cos   θ 1 cos   θ 2 n 1 cos   θ 1 + n 2 cos   θ 2 2 ,
P = P 0 exp - α l ,

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