Abstract

A composite crystalline Nd:YAG rod consisting of 5 segments with different dopant concentrations for high power diode end-pumping is presented. A maximum laser output power of 407 W with an optical-to-optical efficiency of 54 % was achieved by longitudinal pumping with a high power laser diode stack.

© 2005 Optical Society of America

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References

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  1. S.C. Tidwell, J.F Seamanns, M.S. Bowers, A.K. Cousins, "Scaling CW Diode-End-Pumped Nd:YAG Lasers to High Average Powers," IEEE J. Quantum Electron. 28, p.997 (1992).
    [CrossRef]
  2. F. Hanson, "Improved laser performance at 946 and 473 nm from a composite Nd:Y3A15O12 rod," Appl. Phys. Lett. 66, 3549 (1995).
    [CrossRef]
  3. M. Tsunekane, N. Taguchi, and H. Inaba, "High power operation of diode-end-pumped Nd:YVO4 laser using composite rod with undoped end," Electron. Lett. 32, 40 (1996).
    [CrossRef]
  4. M. Tsunekane, N. Taguchi, T. Kasamatsu, and H. Inaba, "Analytical and experimental studies on the characteristics of composite solid-state laser rods in diode-end pumped geometry," IEEE J. Sel. Top. Quantum Electron. 3, 9 (1997).
    [CrossRef]
  5. C. Bibeau, R. J. Beach, S. C. Mitchell, M. A. Emanuel, J. Skidmore, C. A. Ebbers, S. B. Sutton, and K. S. Jancaitis., "High-Average-Power 1 µm Performance and Frequency Conversion of a Diode-End-Pumped Yb:YAG Laser," IEEE J. Quantum Electron. 34, 2010 (1998).
    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef] [PubMed]
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  11. K. Contag, Modellierung und numerische Auslegung des Yb:YAG-Scheibenlasers, (Munich, Herbert Utz Verlag, 2002)

Appl. Phys. Lett.

F. Hanson, "Improved laser performance at 946 and 473 nm from a composite Nd:Y3A15O12 rod," Appl. Phys. Lett. 66, 3549 (1995).
[CrossRef]

Class. Quantum Grav.

M. Frede, R. Wilhelm, R. Gau, M. Brendel, I. Zawischa, C. Fallnich, F. Seifert and B. Willke, "High-power single-frequency Nd:YAG laser for gravitational wave detection," Class. Quantum Grav. 21, 895 (2004).
[CrossRef]

Electron. Lett.

M. Tsunekane, N. Taguchi, and H. Inaba, "High power operation of diode-end-pumped Nd:YVO4 laser using composite rod with undoped end," Electron. Lett. 32, 40 (1996).
[CrossRef]

IEEE J. Quantum Electron.

C. Bibeau, R. J. Beach, S. C. Mitchell, M. A. Emanuel, J. Skidmore, C. A. Ebbers, S. B. Sutton, and K. S. Jancaitis., "High-Average-Power 1 µm Performance and Frequency Conversion of a Diode-End-Pumped Yb:YAG Laser," IEEE J. Quantum Electron. 34, 2010 (1998).
[CrossRef]

S.C. Tidwell, J.F Seamanns, M.S. Bowers, A.K. Cousins, "Scaling CW Diode-End-Pumped Nd:YAG Lasers to High Average Powers," IEEE J. Quantum Electron. 28, p.997 (1992).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron.

M. Tsunekane, N. Taguchi, T. Kasamatsu, and H. Inaba, "Analytical and experimental studies on the characteristics of composite solid-state laser rods in diode-end pumped geometry," IEEE J. Sel. Top. Quantum Electron. 3, 9 (1997).
[CrossRef]

Opt. Express

Opt. Lett.

Other

W. Koechner, Solid-State Laser Engineering, 4th edition, (New York, Springer, 1995)

K. Contag, Modellierung und numerische Auslegung des Yb:YAG-Scheibenlasers, (Munich, Herbert Utz Verlag, 2002)

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Figures (3)

Fig. 1.
Fig. 1.

Schematic set-up of the laser system.

Fig. 2.
Fig. 2.

Heat generation rate distributions (a), numerically calculated temperature profiles (b), and von-Mises equivalent stress on rod surface (c) of the different designs; pump wavelength: 807 nm, spectral width (FWHM): 2.5 nm, pump power: 750 W.

Fig. 3.
Fig. 3.

Laser output vs. diode pump power for the multi-segmented Nd:YAG laser.

Tables (1)

Tables Icon

Table 1. Length and dopant concentration of the segments of the laser rod.

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