Abstract

We report a high-average-power, near-diffraction-limited Er:LuAG laser generating 5 W of power at 1.648 µm in either cw or repetitively Q-switched operation. When the laser is Q switched at 9 kHz, we measure 0.52 mJ/pulse. The laser is end pumped by a 20-W erbium fiber laser and achieves >30% optical conversion efficiency and >40% incident slope efficiency. This is, to our knowledge, the highest performance (average power and conversion efficiency) obtained from a bulk solid-state erbium laser.

© 2003 Optical Society of America

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References

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  1. V. Gapontsev and W. Krupke, Laser Focus World 38(8), 83 (2002).
  2. E. Lippert, G. Rustad, and K. Stenersen, in Advanced Solid-State Photonics, Vol. 83 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp. 266–268.
  3. S. D. Setzler, P. A. Budni, and E. P. Chicklis, in Advanced Solid State Photonics, Vol. 50 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2001), pp. 309–311.
  4. P. A. Budni, C. R. Ibach, S. D. Setzler, E. J. Gustafson, R. T. Castro, and E. P. Chicklis, Opt. Lett. 28, 1016 (2003).
    [CrossRef] [PubMed]
  5. P. A. Budni, M. L. Lemons, J. R. Mosto, and E. P. Chicklis, IEEE J. Sel. Top. Quantum Electron. 6, 629 (2000).
    [CrossRef]
  6. T. Danger, G. Huber, B. I. Denker, B. I. Galagan, and S. E. Sverchkov, in Conference on Lasers and Electro-Optics (CLEO/US), Vol. 6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), p. 181.

2003 (1)

2002 (1)

V. Gapontsev and W. Krupke, Laser Focus World 38(8), 83 (2002).

2000 (1)

P. A. Budni, M. L. Lemons, J. R. Mosto, and E. P. Chicklis, IEEE J. Sel. Top. Quantum Electron. 6, 629 (2000).
[CrossRef]

Budni, P. A.

P. A. Budni, C. R. Ibach, S. D. Setzler, E. J. Gustafson, R. T. Castro, and E. P. Chicklis, Opt. Lett. 28, 1016 (2003).
[CrossRef] [PubMed]

P. A. Budni, M. L. Lemons, J. R. Mosto, and E. P. Chicklis, IEEE J. Sel. Top. Quantum Electron. 6, 629 (2000).
[CrossRef]

S. D. Setzler, P. A. Budni, and E. P. Chicklis, in Advanced Solid State Photonics, Vol. 50 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2001), pp. 309–311.

Castro, R. T.

Chicklis, E. P.

P. A. Budni, C. R. Ibach, S. D. Setzler, E. J. Gustafson, R. T. Castro, and E. P. Chicklis, Opt. Lett. 28, 1016 (2003).
[CrossRef] [PubMed]

P. A. Budni, M. L. Lemons, J. R. Mosto, and E. P. Chicklis, IEEE J. Sel. Top. Quantum Electron. 6, 629 (2000).
[CrossRef]

S. D. Setzler, P. A. Budni, and E. P. Chicklis, in Advanced Solid State Photonics, Vol. 50 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2001), pp. 309–311.

Danger, T.

T. Danger, G. Huber, B. I. Denker, B. I. Galagan, and S. E. Sverchkov, in Conference on Lasers and Electro-Optics (CLEO/US), Vol. 6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), p. 181.

Denker, B. I.

T. Danger, G. Huber, B. I. Denker, B. I. Galagan, and S. E. Sverchkov, in Conference on Lasers and Electro-Optics (CLEO/US), Vol. 6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), p. 181.

Galagan, B. I.

T. Danger, G. Huber, B. I. Denker, B. I. Galagan, and S. E. Sverchkov, in Conference on Lasers and Electro-Optics (CLEO/US), Vol. 6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), p. 181.

Gapontsev, V.

V. Gapontsev and W. Krupke, Laser Focus World 38(8), 83 (2002).

Gustafson, E. J.

Huber, G.

T. Danger, G. Huber, B. I. Denker, B. I. Galagan, and S. E. Sverchkov, in Conference on Lasers and Electro-Optics (CLEO/US), Vol. 6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), p. 181.

Ibach, C. R.

Krupke, W.

V. Gapontsev and W. Krupke, Laser Focus World 38(8), 83 (2002).

Lemons, M. L.

P. A. Budni, M. L. Lemons, J. R. Mosto, and E. P. Chicklis, IEEE J. Sel. Top. Quantum Electron. 6, 629 (2000).
[CrossRef]

Lippert, E.

E. Lippert, G. Rustad, and K. Stenersen, in Advanced Solid-State Photonics, Vol. 83 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp. 266–268.

Mosto, J. R.

P. A. Budni, M. L. Lemons, J. R. Mosto, and E. P. Chicklis, IEEE J. Sel. Top. Quantum Electron. 6, 629 (2000).
[CrossRef]

Rustad, G.

E. Lippert, G. Rustad, and K. Stenersen, in Advanced Solid-State Photonics, Vol. 83 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp. 266–268.

Setzler, S. D.

P. A. Budni, C. R. Ibach, S. D. Setzler, E. J. Gustafson, R. T. Castro, and E. P. Chicklis, Opt. Lett. 28, 1016 (2003).
[CrossRef] [PubMed]

S. D. Setzler, P. A. Budni, and E. P. Chicklis, in Advanced Solid State Photonics, Vol. 50 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2001), pp. 309–311.

Stenersen, K.

E. Lippert, G. Rustad, and K. Stenersen, in Advanced Solid-State Photonics, Vol. 83 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp. 266–268.

Sverchkov, S. E.

T. Danger, G. Huber, B. I. Denker, B. I. Galagan, and S. E. Sverchkov, in Conference on Lasers and Electro-Optics (CLEO/US), Vol. 6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), p. 181.

1998 OSA Technical Digest Series (1)

T. Danger, G. Huber, B. I. Denker, B. I. Galagan, and S. E. Sverchkov, in Conference on Lasers and Electro-Optics (CLEO/US), Vol. 6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), p. 181.

IEEE J. Sel. Top. Quantum Electron. (1)

P. A. Budni, M. L. Lemons, J. R. Mosto, and E. P. Chicklis, IEEE J. Sel. Top. Quantum Electron. 6, 629 (2000).
[CrossRef]

Laser Focus World (1)

V. Gapontsev and W. Krupke, Laser Focus World 38(8), 83 (2002).

Opt. Lett. (1)

OSA Trends in Optics and Photonics Series (2)

E. Lippert, G. Rustad, and K. Stenersen, in Advanced Solid-State Photonics, Vol. 83 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp. 266–268.

S. D. Setzler, P. A. Budni, and E. P. Chicklis, in Advanced Solid State Photonics, Vol. 50 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2001), pp. 309–311.

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Figures (4)

Fig. 1
Fig. 1

Stark-split energy-level diagram of Er3+ in LuAG. Energy levels with respect to the lowest-lying Stark level in the ground state are shown to the right. In parentheses are the Boltzmann occupation factors calculated at 300 K.

Fig. 2
Fig. 2

Resonator schematic. The pump is injected via two TFPs. The optical cavity length is 14.8 cm, including a 2-cm LuAG crystal and a 1.5-cm TeO2 Q switch (Q.S.). The fiber laser is protected from feedback by isolators. λ/2s, half-wave plates; H.R., high reflector.

Fig. 3
Fig. 3

Output power versus incident pump power for cw (triangles) and Q-switched (diamonds) operation. For these data the Q switch was modulated at 25 kHz, but there is little difference for modulation from 9 to 28 kHz.

Fig. 4
Fig. 4

Pulse energy versus pulse repetition interval (PRI), showing efficient energy storage and pulse energies as high as 0.52 mJ at an 111-µs PRI (9-kHz pulse-repetition frequency).

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