Abstract

We report on efficient lasers emission of Er:LiYF4 at 2.8 μm. The crystals were pumped by InGaAs semiconductor laser emitting near 970 nm. The laser performance was investigated for different doping levels and yielded an optimum doping level of ~15%. At this Er3+ concentration we achieved a slope efficiency of 35%, which is identical to the quantum defect. Pumping at high power levels permits a true cw output power of 1.1 W at 2.8 μm, which is of interest for several applications based on the strong water absorption in this wavelength range.

© 1996 Optical Society of America

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  1. J. Frauchiger, W. L. Lüthy, Opt. Quantum Electron. 19, 231 (1987).
    [CrossRef]
  2. D. Helfer, M. Frenz, V. Romano, H. P. Weber, Appl. Phys. B 58, 309 (1994).
    [CrossRef]
  3. R. Jahn, A. Bleckmann, E. Duczynski, G. Huber, W. Lierse, B. Struwe, K.-H. Jungbluth, Unfallchirugie 20, 1 (1994).
    [CrossRef]
  4. G. J. Kintz, R. Allen, L. Esterowitz, Appl. Phys. Lett. 50, 1553 (1987).
    [CrossRef]
  5. R. C. Stoneman, J. G. Lynn, L. Esterowitz, IEEE J. Quantum Electron. 28, 1041 (1992).
    [CrossRef]
  6. B. J. Dinerman, P. F. Moulton, in Advanced Solid-State Lasers, L.L. Chase, A.A. Pinto, eds., Vol. 13 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1992), p. 152.
  7. B. J. Dinerman, P. F. Moulton, Opt. Lett. 19, 1143 (1994).
    [PubMed]
  8. T. Jensen, V. G. Ostroumov, G. Huber, in Advanced Solid-State Lasers, B.H.T. Chai, S. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), p. 366.
  9. H. Chou, H. P. Jenssen, in Advanced Solid-State Lasers, M. L. Shand, H. P. Jenssen, eds., Vol. 5 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1989), p. 167.
  10. T. Jensen, A. Diening, G. Huber, “Emission cross section measurements in the 3-μm range of Er:YSGG and Er:YLF,” Opt. Commun. (to be published).
  11. M. Pollnau, W. Lüthy, H. P. Weber, T. Jensen, G. Huber, A. Cassanho, H. P. Jenssen, R. A. McFarlane, Opt. Lett. 21, 48 (1996).
    [CrossRef] [PubMed]
  12. D. Findlay, R. A. Clay, Phys. Lett. 20, 277 (1966).
    [CrossRef]
  13. T. Jensen, A. Diening, G. Huber, B. H. T. Chai, in Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), postdeadline paper CPD 29.

1996

1994

B. J. Dinerman, P. F. Moulton, Opt. Lett. 19, 1143 (1994).
[PubMed]

D. Helfer, M. Frenz, V. Romano, H. P. Weber, Appl. Phys. B 58, 309 (1994).
[CrossRef]

R. Jahn, A. Bleckmann, E. Duczynski, G. Huber, W. Lierse, B. Struwe, K.-H. Jungbluth, Unfallchirugie 20, 1 (1994).
[CrossRef]

1992

R. C. Stoneman, J. G. Lynn, L. Esterowitz, IEEE J. Quantum Electron. 28, 1041 (1992).
[CrossRef]

1987

G. J. Kintz, R. Allen, L. Esterowitz, Appl. Phys. Lett. 50, 1553 (1987).
[CrossRef]

J. Frauchiger, W. L. Lüthy, Opt. Quantum Electron. 19, 231 (1987).
[CrossRef]

1966

D. Findlay, R. A. Clay, Phys. Lett. 20, 277 (1966).
[CrossRef]

Allen, R.

G. J. Kintz, R. Allen, L. Esterowitz, Appl. Phys. Lett. 50, 1553 (1987).
[CrossRef]

Bleckmann, A.

R. Jahn, A. Bleckmann, E. Duczynski, G. Huber, W. Lierse, B. Struwe, K.-H. Jungbluth, Unfallchirugie 20, 1 (1994).
[CrossRef]

Cassanho, A.

Chai, B. H. T.

T. Jensen, A. Diening, G. Huber, B. H. T. Chai, in Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), postdeadline paper CPD 29.

Chou, H.

H. Chou, H. P. Jenssen, in Advanced Solid-State Lasers, M. L. Shand, H. P. Jenssen, eds., Vol. 5 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1989), p. 167.

Clay, R. A.

D. Findlay, R. A. Clay, Phys. Lett. 20, 277 (1966).
[CrossRef]

Diening, A.

T. Jensen, A. Diening, G. Huber, B. H. T. Chai, in Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), postdeadline paper CPD 29.

T. Jensen, A. Diening, G. Huber, “Emission cross section measurements in the 3-μm range of Er:YSGG and Er:YLF,” Opt. Commun. (to be published).

Dinerman, B. J.

B. J. Dinerman, P. F. Moulton, Opt. Lett. 19, 1143 (1994).
[PubMed]

B. J. Dinerman, P. F. Moulton, in Advanced Solid-State Lasers, L.L. Chase, A.A. Pinto, eds., Vol. 13 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1992), p. 152.

Duczynski, E.

R. Jahn, A. Bleckmann, E. Duczynski, G. Huber, W. Lierse, B. Struwe, K.-H. Jungbluth, Unfallchirugie 20, 1 (1994).
[CrossRef]

Esterowitz, L.

R. C. Stoneman, J. G. Lynn, L. Esterowitz, IEEE J. Quantum Electron. 28, 1041 (1992).
[CrossRef]

G. J. Kintz, R. Allen, L. Esterowitz, Appl. Phys. Lett. 50, 1553 (1987).
[CrossRef]

Findlay, D.

D. Findlay, R. A. Clay, Phys. Lett. 20, 277 (1966).
[CrossRef]

Frauchiger, J.

J. Frauchiger, W. L. Lüthy, Opt. Quantum Electron. 19, 231 (1987).
[CrossRef]

Frenz, M.

D. Helfer, M. Frenz, V. Romano, H. P. Weber, Appl. Phys. B 58, 309 (1994).
[CrossRef]

Helfer, D.

D. Helfer, M. Frenz, V. Romano, H. P. Weber, Appl. Phys. B 58, 309 (1994).
[CrossRef]

Huber, G.

M. Pollnau, W. Lüthy, H. P. Weber, T. Jensen, G. Huber, A. Cassanho, H. P. Jenssen, R. A. McFarlane, Opt. Lett. 21, 48 (1996).
[CrossRef] [PubMed]

R. Jahn, A. Bleckmann, E. Duczynski, G. Huber, W. Lierse, B. Struwe, K.-H. Jungbluth, Unfallchirugie 20, 1 (1994).
[CrossRef]

T. Jensen, A. Diening, G. Huber, “Emission cross section measurements in the 3-μm range of Er:YSGG and Er:YLF,” Opt. Commun. (to be published).

T. Jensen, V. G. Ostroumov, G. Huber, in Advanced Solid-State Lasers, B.H.T. Chai, S. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), p. 366.

T. Jensen, A. Diening, G. Huber, B. H. T. Chai, in Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), postdeadline paper CPD 29.

Jahn, R.

R. Jahn, A. Bleckmann, E. Duczynski, G. Huber, W. Lierse, B. Struwe, K.-H. Jungbluth, Unfallchirugie 20, 1 (1994).
[CrossRef]

Jensen, T.

M. Pollnau, W. Lüthy, H. P. Weber, T. Jensen, G. Huber, A. Cassanho, H. P. Jenssen, R. A. McFarlane, Opt. Lett. 21, 48 (1996).
[CrossRef] [PubMed]

T. Jensen, A. Diening, G. Huber, “Emission cross section measurements in the 3-μm range of Er:YSGG and Er:YLF,” Opt. Commun. (to be published).

T. Jensen, A. Diening, G. Huber, B. H. T. Chai, in Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), postdeadline paper CPD 29.

T. Jensen, V. G. Ostroumov, G. Huber, in Advanced Solid-State Lasers, B.H.T. Chai, S. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), p. 366.

Jenssen, H. P.

M. Pollnau, W. Lüthy, H. P. Weber, T. Jensen, G. Huber, A. Cassanho, H. P. Jenssen, R. A. McFarlane, Opt. Lett. 21, 48 (1996).
[CrossRef] [PubMed]

H. Chou, H. P. Jenssen, in Advanced Solid-State Lasers, M. L. Shand, H. P. Jenssen, eds., Vol. 5 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1989), p. 167.

Jungbluth, K.-H.

R. Jahn, A. Bleckmann, E. Duczynski, G. Huber, W. Lierse, B. Struwe, K.-H. Jungbluth, Unfallchirugie 20, 1 (1994).
[CrossRef]

Kintz, G. J.

G. J. Kintz, R. Allen, L. Esterowitz, Appl. Phys. Lett. 50, 1553 (1987).
[CrossRef]

Lierse, W.

R. Jahn, A. Bleckmann, E. Duczynski, G. Huber, W. Lierse, B. Struwe, K.-H. Jungbluth, Unfallchirugie 20, 1 (1994).
[CrossRef]

Lüthy, W.

Lüthy, W. L.

J. Frauchiger, W. L. Lüthy, Opt. Quantum Electron. 19, 231 (1987).
[CrossRef]

Lynn, J. G.

R. C. Stoneman, J. G. Lynn, L. Esterowitz, IEEE J. Quantum Electron. 28, 1041 (1992).
[CrossRef]

McFarlane, R. A.

Moulton, P. F.

B. J. Dinerman, P. F. Moulton, Opt. Lett. 19, 1143 (1994).
[PubMed]

B. J. Dinerman, P. F. Moulton, in Advanced Solid-State Lasers, L.L. Chase, A.A. Pinto, eds., Vol. 13 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1992), p. 152.

Ostroumov, V. G.

T. Jensen, V. G. Ostroumov, G. Huber, in Advanced Solid-State Lasers, B.H.T. Chai, S. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), p. 366.

Pollnau, M.

Romano, V.

D. Helfer, M. Frenz, V. Romano, H. P. Weber, Appl. Phys. B 58, 309 (1994).
[CrossRef]

Stoneman, R. C.

R. C. Stoneman, J. G. Lynn, L. Esterowitz, IEEE J. Quantum Electron. 28, 1041 (1992).
[CrossRef]

Struwe, B.

R. Jahn, A. Bleckmann, E. Duczynski, G. Huber, W. Lierse, B. Struwe, K.-H. Jungbluth, Unfallchirugie 20, 1 (1994).
[CrossRef]

Weber, H. P.

Appl. Phys. B

D. Helfer, M. Frenz, V. Romano, H. P. Weber, Appl. Phys. B 58, 309 (1994).
[CrossRef]

Appl. Phys. Lett.

G. J. Kintz, R. Allen, L. Esterowitz, Appl. Phys. Lett. 50, 1553 (1987).
[CrossRef]

IEEE J. Quantum Electron.

R. C. Stoneman, J. G. Lynn, L. Esterowitz, IEEE J. Quantum Electron. 28, 1041 (1992).
[CrossRef]

Opt. Lett.

Opt. Quantum Electron.

J. Frauchiger, W. L. Lüthy, Opt. Quantum Electron. 19, 231 (1987).
[CrossRef]

Phys. Lett.

D. Findlay, R. A. Clay, Phys. Lett. 20, 277 (1966).
[CrossRef]

Unfallchirugie

R. Jahn, A. Bleckmann, E. Duczynski, G. Huber, W. Lierse, B. Struwe, K.-H. Jungbluth, Unfallchirugie 20, 1 (1994).
[CrossRef]

Other

T. Jensen, A. Diening, G. Huber, B. H. T. Chai, in Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), postdeadline paper CPD 29.

B. J. Dinerman, P. F. Moulton, in Advanced Solid-State Lasers, L.L. Chase, A.A. Pinto, eds., Vol. 13 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1992), p. 152.

T. Jensen, V. G. Ostroumov, G. Huber, in Advanced Solid-State Lasers, B.H.T. Chai, S. Payne, eds., Vol. 24 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1995), p. 366.

H. Chou, H. P. Jenssen, in Advanced Solid-State Lasers, M. L. Shand, H. P. Jenssen, eds., Vol. 5 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1989), p. 167.

T. Jensen, A. Diening, G. Huber, “Emission cross section measurements in the 3-μm range of Er:YSGG and Er:YLF,” Opt. Commun. (to be published).

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Figures (5)

Fig. 1
Fig. 1

Experimental laser setups: the pump source consists (a) of two polarization-coupled laser diodes and (b) of a fiber-coupled diode array.

Fig. 2
Fig. 2

Concentration-dependent laser experiments with Er:YLF at 2.8 μm.

Fig. 3
Fig. 3

Energy-level scheme for the Er3+ ion in YLF, including relevant transfer processes.

Fig. 4
Fig. 4

Measured and calculated laser efficiencies of Er:YLF at different doping levels.

Fig. 5
Fig. 5

High-pump-power laser experiments (filled symbols, cw; open symbols, duty factor 50% at 15-ms pulse length).

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