Abstract

We report on 1.34-μm laser emission in Nd:YAG under diode pumping at 885 nm, directly into the 4F3/2 emitting level. 3.8 W of output power with 0.26 overall optical-to-optical efficiency was recorded from a 2.5-at.% Nd:YAG single-crystal. Comparative results obtained by classical pumping at 809 nm, in the highly absorbing 4F5/2 level, are presented, showing the advantage of the direct pumping. The influence of lasing wavelength and Nd concentration on the thermal effects induced by optical pumping into the active component is discussed.

© 2005 Optical Society of America

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  1. M. Ross, “YAG laser operation by semiconductor laser pumping,” Proc. IEEE 56, 196–197 (1968).
    [Crossref]
  2. L.J. Rosenkrantz, “GaAs diode-pumped Nd:YAG laser,” J. Appl. Phys. 43, 4603–4605 (1972).
    [Crossref]
  3. V. Lupei, A. Lupei, N. Pavel, T. Taira, and A. Ikesue, “Comparative investigation of spectroscopic and laser emission characteristics under direct 885-nm pump of concentrated Nd:YAG ceramics and crystals,” Appl. Phys. B 73, 757–762 (2001).
    [Crossref]
  4. R. Lavi, S. Jackel, Y. Tzuk, M. Winik, E. Lebiush, M. Katz, and I. Paiss, “Efficient pumping scheme for neodymium-doped materials by direct excitation of the upper lasing level,” Appl. Opt. 38, 7382–7385 (1999).
    [Crossref]
  5. V. Lupei, A. Lupei, N. Pavel, T. Taira, I. Shoji, and A. Ikesue, “Laser emission under resonant pump in the emitting level of concentrated Nd:YAG ceramics,” Appl. Phys. Lett. 79, 590–592 (2001).
    [Crossref]
  6. V. Lupei, N. Pavel, and T. Taira, “Laser emission in highly doped Nd:YAG crystals under 4F5/2 and 4F3/2 pumping,” Opt. Lett. 26, 1678–1680 (2001).
    [Crossref]
  7. V. Lupei, N. Pavel, and T. Taira, “Highly efficient continuous-wave 946-nm Nd:YAG laser emission under direct 885-nm pumping,” Appl. Phys. Lett. 81, 2677–2679 (2002).
    [Crossref]
  8. N. Pavel, V. Lupei, and T. Taira, “The effect of Nd concentration on 1064 and 946-nm emission of Nd:YAG lasers under continuous-wave Ti: Sapphire pumping”, in Technical Digest of CLEO/QELS Europe Conference, Munich, Germany, June 2003, paper CA9T.
  9. R. Lavi, S. Jackel, A. Tal, E. Lebiush, Y. Tzuk, and S. Goldring, “885 nm high-power diodes end-pumped Nd:YAG laser,” Opt. Commun. 195, 427–430 (2001).
    [Crossref]
  10. V. Lupei, N. Pavel, and T. Taira, “1064 nm laser emission of highly doped Nd:Yttrium aluminum garnet under 885 nm diode laser pumping,” Appl. Phys. Lett. 80, 4309–4311 (2002).
    [Crossref]
  11. T.Y. Fan, “Heat generation in Nd:YAG and Yb:YAG,” IEEE J. Quantum Electron. 29, 1457–1459 (1993).
    [Crossref]
  12. V. Lupei, A. Lupei, S. Georgescu, T. Taira, Y. Sato, and A. Ikesue, “The effect of Nd concentration on the spectroscopic and emission decay properties of highly doped Nd:YAG ceramics,” Phys. Rev. B 64, 092102 (2001).
    [Crossref]
  13. Y. Inoue and S. Fujikawa, “Diode-pumped Nd:YAG laser producing 122-W power at 1.319 μm,” IEEE J. Quantum Electron. 36, 751–756 (2000).
    [Crossref]
  14. M. Okida, M. Itoh, T. Yatagai, H. Ogilvy, J. Piper, and T. Omatsu, “Heat generation in Nd doped vanadates crystals with 1.34 μm laser action,” Opt. Express 13, 4909–4915 (2005), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-13-4909.
    [Crossref] [PubMed]

2005 (1)

2002 (2)

V. Lupei, N. Pavel, and T. Taira, “1064 nm laser emission of highly doped Nd:Yttrium aluminum garnet under 885 nm diode laser pumping,” Appl. Phys. Lett. 80, 4309–4311 (2002).
[Crossref]

V. Lupei, N. Pavel, and T. Taira, “Highly efficient continuous-wave 946-nm Nd:YAG laser emission under direct 885-nm pumping,” Appl. Phys. Lett. 81, 2677–2679 (2002).
[Crossref]

2001 (5)

R. Lavi, S. Jackel, A. Tal, E. Lebiush, Y. Tzuk, and S. Goldring, “885 nm high-power diodes end-pumped Nd:YAG laser,” Opt. Commun. 195, 427–430 (2001).
[Crossref]

V. Lupei, A. Lupei, N. Pavel, T. Taira, I. Shoji, and A. Ikesue, “Laser emission under resonant pump in the emitting level of concentrated Nd:YAG ceramics,” Appl. Phys. Lett. 79, 590–592 (2001).
[Crossref]

V. Lupei, N. Pavel, and T. Taira, “Laser emission in highly doped Nd:YAG crystals under 4F5/2 and 4F3/2 pumping,” Opt. Lett. 26, 1678–1680 (2001).
[Crossref]

V. Lupei, A. Lupei, N. Pavel, T. Taira, and A. Ikesue, “Comparative investigation of spectroscopic and laser emission characteristics under direct 885-nm pump of concentrated Nd:YAG ceramics and crystals,” Appl. Phys. B 73, 757–762 (2001).
[Crossref]

V. Lupei, A. Lupei, S. Georgescu, T. Taira, Y. Sato, and A. Ikesue, “The effect of Nd concentration on the spectroscopic and emission decay properties of highly doped Nd:YAG ceramics,” Phys. Rev. B 64, 092102 (2001).
[Crossref]

2000 (1)

Y. Inoue and S. Fujikawa, “Diode-pumped Nd:YAG laser producing 122-W power at 1.319 μm,” IEEE J. Quantum Electron. 36, 751–756 (2000).
[Crossref]

1999 (1)

1993 (1)

T.Y. Fan, “Heat generation in Nd:YAG and Yb:YAG,” IEEE J. Quantum Electron. 29, 1457–1459 (1993).
[Crossref]

1972 (1)

L.J. Rosenkrantz, “GaAs diode-pumped Nd:YAG laser,” J. Appl. Phys. 43, 4603–4605 (1972).
[Crossref]

1968 (1)

M. Ross, “YAG laser operation by semiconductor laser pumping,” Proc. IEEE 56, 196–197 (1968).
[Crossref]

Fan, T.Y.

T.Y. Fan, “Heat generation in Nd:YAG and Yb:YAG,” IEEE J. Quantum Electron. 29, 1457–1459 (1993).
[Crossref]

Fujikawa, S.

Y. Inoue and S. Fujikawa, “Diode-pumped Nd:YAG laser producing 122-W power at 1.319 μm,” IEEE J. Quantum Electron. 36, 751–756 (2000).
[Crossref]

Georgescu, S.

V. Lupei, A. Lupei, S. Georgescu, T. Taira, Y. Sato, and A. Ikesue, “The effect of Nd concentration on the spectroscopic and emission decay properties of highly doped Nd:YAG ceramics,” Phys. Rev. B 64, 092102 (2001).
[Crossref]

Goldring, S.

R. Lavi, S. Jackel, A. Tal, E. Lebiush, Y. Tzuk, and S. Goldring, “885 nm high-power diodes end-pumped Nd:YAG laser,” Opt. Commun. 195, 427–430 (2001).
[Crossref]

Ikesue, A.

V. Lupei, A. Lupei, N. Pavel, T. Taira, I. Shoji, and A. Ikesue, “Laser emission under resonant pump in the emitting level of concentrated Nd:YAG ceramics,” Appl. Phys. Lett. 79, 590–592 (2001).
[Crossref]

V. Lupei, A. Lupei, N. Pavel, T. Taira, and A. Ikesue, “Comparative investigation of spectroscopic and laser emission characteristics under direct 885-nm pump of concentrated Nd:YAG ceramics and crystals,” Appl. Phys. B 73, 757–762 (2001).
[Crossref]

V. Lupei, A. Lupei, S. Georgescu, T. Taira, Y. Sato, and A. Ikesue, “The effect of Nd concentration on the spectroscopic and emission decay properties of highly doped Nd:YAG ceramics,” Phys. Rev. B 64, 092102 (2001).
[Crossref]

Inoue, Y.

Y. Inoue and S. Fujikawa, “Diode-pumped Nd:YAG laser producing 122-W power at 1.319 μm,” IEEE J. Quantum Electron. 36, 751–756 (2000).
[Crossref]

Itoh, M.

Jackel, S.

R. Lavi, S. Jackel, A. Tal, E. Lebiush, Y. Tzuk, and S. Goldring, “885 nm high-power diodes end-pumped Nd:YAG laser,” Opt. Commun. 195, 427–430 (2001).
[Crossref]

R. Lavi, S. Jackel, Y. Tzuk, M. Winik, E. Lebiush, M. Katz, and I. Paiss, “Efficient pumping scheme for neodymium-doped materials by direct excitation of the upper lasing level,” Appl. Opt. 38, 7382–7385 (1999).
[Crossref]

Katz, M.

Lavi, R.

R. Lavi, S. Jackel, A. Tal, E. Lebiush, Y. Tzuk, and S. Goldring, “885 nm high-power diodes end-pumped Nd:YAG laser,” Opt. Commun. 195, 427–430 (2001).
[Crossref]

R. Lavi, S. Jackel, Y. Tzuk, M. Winik, E. Lebiush, M. Katz, and I. Paiss, “Efficient pumping scheme for neodymium-doped materials by direct excitation of the upper lasing level,” Appl. Opt. 38, 7382–7385 (1999).
[Crossref]

Lebiush, E.

R. Lavi, S. Jackel, A. Tal, E. Lebiush, Y. Tzuk, and S. Goldring, “885 nm high-power diodes end-pumped Nd:YAG laser,” Opt. Commun. 195, 427–430 (2001).
[Crossref]

R. Lavi, S. Jackel, Y. Tzuk, M. Winik, E. Lebiush, M. Katz, and I. Paiss, “Efficient pumping scheme for neodymium-doped materials by direct excitation of the upper lasing level,” Appl. Opt. 38, 7382–7385 (1999).
[Crossref]

Lupei, A.

V. Lupei, A. Lupei, N. Pavel, T. Taira, I. Shoji, and A. Ikesue, “Laser emission under resonant pump in the emitting level of concentrated Nd:YAG ceramics,” Appl. Phys. Lett. 79, 590–592 (2001).
[Crossref]

V. Lupei, A. Lupei, N. Pavel, T. Taira, and A. Ikesue, “Comparative investigation of spectroscopic and laser emission characteristics under direct 885-nm pump of concentrated Nd:YAG ceramics and crystals,” Appl. Phys. B 73, 757–762 (2001).
[Crossref]

V. Lupei, A. Lupei, S. Georgescu, T. Taira, Y. Sato, and A. Ikesue, “The effect of Nd concentration on the spectroscopic and emission decay properties of highly doped Nd:YAG ceramics,” Phys. Rev. B 64, 092102 (2001).
[Crossref]

Lupei, V.

V. Lupei, N. Pavel, and T. Taira, “1064 nm laser emission of highly doped Nd:Yttrium aluminum garnet under 885 nm diode laser pumping,” Appl. Phys. Lett. 80, 4309–4311 (2002).
[Crossref]

V. Lupei, N. Pavel, and T. Taira, “Highly efficient continuous-wave 946-nm Nd:YAG laser emission under direct 885-nm pumping,” Appl. Phys. Lett. 81, 2677–2679 (2002).
[Crossref]

V. Lupei, N. Pavel, and T. Taira, “Laser emission in highly doped Nd:YAG crystals under 4F5/2 and 4F3/2 pumping,” Opt. Lett. 26, 1678–1680 (2001).
[Crossref]

V. Lupei, A. Lupei, N. Pavel, T. Taira, I. Shoji, and A. Ikesue, “Laser emission under resonant pump in the emitting level of concentrated Nd:YAG ceramics,” Appl. Phys. Lett. 79, 590–592 (2001).
[Crossref]

V. Lupei, A. Lupei, N. Pavel, T. Taira, and A. Ikesue, “Comparative investigation of spectroscopic and laser emission characteristics under direct 885-nm pump of concentrated Nd:YAG ceramics and crystals,” Appl. Phys. B 73, 757–762 (2001).
[Crossref]

V. Lupei, A. Lupei, S. Georgescu, T. Taira, Y. Sato, and A. Ikesue, “The effect of Nd concentration on the spectroscopic and emission decay properties of highly doped Nd:YAG ceramics,” Phys. Rev. B 64, 092102 (2001).
[Crossref]

N. Pavel, V. Lupei, and T. Taira, “The effect of Nd concentration on 1064 and 946-nm emission of Nd:YAG lasers under continuous-wave Ti: Sapphire pumping”, in Technical Digest of CLEO/QELS Europe Conference, Munich, Germany, June 2003, paper CA9T.

Ogilvy, H.

Okida, M.

Omatsu, T.

Paiss, I.

Pavel, N.

V. Lupei, N. Pavel, and T. Taira, “Highly efficient continuous-wave 946-nm Nd:YAG laser emission under direct 885-nm pumping,” Appl. Phys. Lett. 81, 2677–2679 (2002).
[Crossref]

V. Lupei, N. Pavel, and T. Taira, “1064 nm laser emission of highly doped Nd:Yttrium aluminum garnet under 885 nm diode laser pumping,” Appl. Phys. Lett. 80, 4309–4311 (2002).
[Crossref]

V. Lupei, N. Pavel, and T. Taira, “Laser emission in highly doped Nd:YAG crystals under 4F5/2 and 4F3/2 pumping,” Opt. Lett. 26, 1678–1680 (2001).
[Crossref]

V. Lupei, A. Lupei, N. Pavel, T. Taira, I. Shoji, and A. Ikesue, “Laser emission under resonant pump in the emitting level of concentrated Nd:YAG ceramics,” Appl. Phys. Lett. 79, 590–592 (2001).
[Crossref]

V. Lupei, A. Lupei, N. Pavel, T. Taira, and A. Ikesue, “Comparative investigation of spectroscopic and laser emission characteristics under direct 885-nm pump of concentrated Nd:YAG ceramics and crystals,” Appl. Phys. B 73, 757–762 (2001).
[Crossref]

N. Pavel, V. Lupei, and T. Taira, “The effect of Nd concentration on 1064 and 946-nm emission of Nd:YAG lasers under continuous-wave Ti: Sapphire pumping”, in Technical Digest of CLEO/QELS Europe Conference, Munich, Germany, June 2003, paper CA9T.

Piper, J.

Rosenkrantz, L.J.

L.J. Rosenkrantz, “GaAs diode-pumped Nd:YAG laser,” J. Appl. Phys. 43, 4603–4605 (1972).
[Crossref]

Ross, M.

M. Ross, “YAG laser operation by semiconductor laser pumping,” Proc. IEEE 56, 196–197 (1968).
[Crossref]

Sato, Y.

V. Lupei, A. Lupei, S. Georgescu, T. Taira, Y. Sato, and A. Ikesue, “The effect of Nd concentration on the spectroscopic and emission decay properties of highly doped Nd:YAG ceramics,” Phys. Rev. B 64, 092102 (2001).
[Crossref]

Shoji, I.

V. Lupei, A. Lupei, N. Pavel, T. Taira, I. Shoji, and A. Ikesue, “Laser emission under resonant pump in the emitting level of concentrated Nd:YAG ceramics,” Appl. Phys. Lett. 79, 590–592 (2001).
[Crossref]

Taira, T.

V. Lupei, N. Pavel, and T. Taira, “1064 nm laser emission of highly doped Nd:Yttrium aluminum garnet under 885 nm diode laser pumping,” Appl. Phys. Lett. 80, 4309–4311 (2002).
[Crossref]

V. Lupei, N. Pavel, and T. Taira, “Highly efficient continuous-wave 946-nm Nd:YAG laser emission under direct 885-nm pumping,” Appl. Phys. Lett. 81, 2677–2679 (2002).
[Crossref]

V. Lupei, N. Pavel, and T. Taira, “Laser emission in highly doped Nd:YAG crystals under 4F5/2 and 4F3/2 pumping,” Opt. Lett. 26, 1678–1680 (2001).
[Crossref]

V. Lupei, A. Lupei, N. Pavel, T. Taira, I. Shoji, and A. Ikesue, “Laser emission under resonant pump in the emitting level of concentrated Nd:YAG ceramics,” Appl. Phys. Lett. 79, 590–592 (2001).
[Crossref]

V. Lupei, A. Lupei, N. Pavel, T. Taira, and A. Ikesue, “Comparative investigation of spectroscopic and laser emission characteristics under direct 885-nm pump of concentrated Nd:YAG ceramics and crystals,” Appl. Phys. B 73, 757–762 (2001).
[Crossref]

V. Lupei, A. Lupei, S. Georgescu, T. Taira, Y. Sato, and A. Ikesue, “The effect of Nd concentration on the spectroscopic and emission decay properties of highly doped Nd:YAG ceramics,” Phys. Rev. B 64, 092102 (2001).
[Crossref]

N. Pavel, V. Lupei, and T. Taira, “The effect of Nd concentration on 1064 and 946-nm emission of Nd:YAG lasers under continuous-wave Ti: Sapphire pumping”, in Technical Digest of CLEO/QELS Europe Conference, Munich, Germany, June 2003, paper CA9T.

Tal, A.

R. Lavi, S. Jackel, A. Tal, E. Lebiush, Y. Tzuk, and S. Goldring, “885 nm high-power diodes end-pumped Nd:YAG laser,” Opt. Commun. 195, 427–430 (2001).
[Crossref]

Tzuk, Y.

R. Lavi, S. Jackel, A. Tal, E. Lebiush, Y. Tzuk, and S. Goldring, “885 nm high-power diodes end-pumped Nd:YAG laser,” Opt. Commun. 195, 427–430 (2001).
[Crossref]

R. Lavi, S. Jackel, Y. Tzuk, M. Winik, E. Lebiush, M. Katz, and I. Paiss, “Efficient pumping scheme for neodymium-doped materials by direct excitation of the upper lasing level,” Appl. Opt. 38, 7382–7385 (1999).
[Crossref]

Winik, M.

Yatagai, T.

Appl. Opt. (1)

Appl. Phys. B (1)

V. Lupei, A. Lupei, N. Pavel, T. Taira, and A. Ikesue, “Comparative investigation of spectroscopic and laser emission characteristics under direct 885-nm pump of concentrated Nd:YAG ceramics and crystals,” Appl. Phys. B 73, 757–762 (2001).
[Crossref]

Appl. Phys. Lett. (3)

V. Lupei, N. Pavel, and T. Taira, “Highly efficient continuous-wave 946-nm Nd:YAG laser emission under direct 885-nm pumping,” Appl. Phys. Lett. 81, 2677–2679 (2002).
[Crossref]

V. Lupei, A. Lupei, N. Pavel, T. Taira, I. Shoji, and A. Ikesue, “Laser emission under resonant pump in the emitting level of concentrated Nd:YAG ceramics,” Appl. Phys. Lett. 79, 590–592 (2001).
[Crossref]

V. Lupei, N. Pavel, and T. Taira, “1064 nm laser emission of highly doped Nd:Yttrium aluminum garnet under 885 nm diode laser pumping,” Appl. Phys. Lett. 80, 4309–4311 (2002).
[Crossref]

IEEE J. Quantum Electron. (2)

T.Y. Fan, “Heat generation in Nd:YAG and Yb:YAG,” IEEE J. Quantum Electron. 29, 1457–1459 (1993).
[Crossref]

Y. Inoue and S. Fujikawa, “Diode-pumped Nd:YAG laser producing 122-W power at 1.319 μm,” IEEE J. Quantum Electron. 36, 751–756 (2000).
[Crossref]

J. Appl. Phys. (1)

L.J. Rosenkrantz, “GaAs diode-pumped Nd:YAG laser,” J. Appl. Phys. 43, 4603–4605 (1972).
[Crossref]

Opt. Commun. (1)

R. Lavi, S. Jackel, A. Tal, E. Lebiush, Y. Tzuk, and S. Goldring, “885 nm high-power diodes end-pumped Nd:YAG laser,” Opt. Commun. 195, 427–430 (2001).
[Crossref]

Opt. Express (1)

Opt. Lett. (1)

Phys. Rev. B (1)

V. Lupei, A. Lupei, S. Georgescu, T. Taira, Y. Sato, and A. Ikesue, “The effect of Nd concentration on the spectroscopic and emission decay properties of highly doped Nd:YAG ceramics,” Phys. Rev. B 64, 092102 (2001).
[Crossref]

Proc. IEEE (1)

M. Ross, “YAG laser operation by semiconductor laser pumping,” Proc. IEEE 56, 196–197 (1968).
[Crossref]

Other (1)

N. Pavel, V. Lupei, and T. Taira, “The effect of Nd concentration on 1064 and 946-nm emission of Nd:YAG lasers under continuous-wave Ti: Sapphire pumping”, in Technical Digest of CLEO/QELS Europe Conference, Munich, Germany, June 2003, paper CA9T.

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Figures (5)

Fig. 1.
Fig. 1.

Output power vs. absorbed pump power for the 1.0-at.% Nd:YAG emitting at (a) 1.06 μm and (b) 1.34 μm.

Fig. 2.
Fig. 2.

Output power vs. absorbed pump power for the 2.5-at.% Nd:YAG emitting at (a) 1.06 μm and (b) 1.34 μm.

Fig. 3.
Fig. 3.

ηh vs. CNd under 885-nm pumping, non-lasing and efficient lasing at 1.06 and 1.34 μm.

Fig. 4.
Fig. 4.

Maximum temperature of the 1.0-at.% Nd:YAG output surface vs. absorbed power at 885 nm. The recorded images for the maximum Pabs ~3.9 W are shown.

Fig. 5.
Fig. 5.

Maximum temperature of the 2.5-at.% Nd:YAG output surface vs. absorbed power at 885 nm. The recorded images for the maximum Pabs ~ 10.2 W are shown.

Equations (1)

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η h = 1 η p [ ( 1 n ) η qe η qd f + η η qd ]

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