Abstract

We have demonstrated a diode-end-pumped Nd:YAG laser that produces an output power of 60 W in a near-diffraction-limited beam (i.e., M2 < 1.3). In multimode operation, the laser produces an output power of 92 W. The optical-to-optical efficiency (i.e., the ratio of laser power to diode power) is 26% for TEM00 operation and 44% for multimode operation.

© 1993 Optical Society of America

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References

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  1. S. C. Tidwell, J. F. Seamans, C. E. Hamilton, C. H. Muller, D. D. Lowenthal, Opt. Lett. 16, 584 (1991).
    [Crossref] [PubMed]
  2. For a cost comparison, the price of a 15-W laser diode bar is less than twice that of a 0.5-W fiber-coupled laser diode (Spectra Diode Laboratories, Inc., San Jose, Calif., 1992 Product Catalog).
  3. Y. Kaneda, M. Oka, H. Masuda, S. Kubota, Opt. Lett. 17, 1003 (1992).
    [Crossref] [PubMed]
  4. T. Y. Fan, A. Sanchez, W. E. DeFeo, Opt. Lett. 14, 1057 (1989).
    [Crossref] [PubMed]
  5. M. S. Keirstead, T. M. Baer, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), p. 490.
  6. S. C. Tidwell, J. F. Seamans, M. S. Bowers, A. K. Cousins, IEEE J. Quantum Electron. 28, 997 (1992).
    [Crossref]
  7. S. C. Tidwell, M. S. Bowers, A. K. Cousins, D. D. Lowenthal, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), p. 448.
  8. W. K. Koechner, Solid-State Laser Engineering (Springer-Verlag, New York, 1988), pp. 350–380.
  9. W. K. Koechner, Solid-State Laser Engineering (Springer-Verlag, New York, 1988), pp. 60–62.
  10. D. L. Sipes, Appl. Phys. Lett. 47, 74 (1985).
    [Crossref]
  11. W. C. Scott, M. de Wit, Appl. Phys. Lett. 18, 3 (1971).
    [Crossref]
  12. V. Magni, Appl. Opt. 25, 107 (1986).
    [Crossref] [PubMed]

1992 (2)

Y. Kaneda, M. Oka, H. Masuda, S. Kubota, Opt. Lett. 17, 1003 (1992).
[Crossref] [PubMed]

S. C. Tidwell, J. F. Seamans, M. S. Bowers, A. K. Cousins, IEEE J. Quantum Electron. 28, 997 (1992).
[Crossref]

1991 (1)

1989 (1)

1986 (1)

1985 (1)

D. L. Sipes, Appl. Phys. Lett. 47, 74 (1985).
[Crossref]

1971 (1)

W. C. Scott, M. de Wit, Appl. Phys. Lett. 18, 3 (1971).
[Crossref]

Baer, T. M.

M. S. Keirstead, T. M. Baer, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), p. 490.

Bowers, M. S.

S. C. Tidwell, J. F. Seamans, M. S. Bowers, A. K. Cousins, IEEE J. Quantum Electron. 28, 997 (1992).
[Crossref]

S. C. Tidwell, M. S. Bowers, A. K. Cousins, D. D. Lowenthal, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), p. 448.

Cousins, A. K.

S. C. Tidwell, J. F. Seamans, M. S. Bowers, A. K. Cousins, IEEE J. Quantum Electron. 28, 997 (1992).
[Crossref]

S. C. Tidwell, M. S. Bowers, A. K. Cousins, D. D. Lowenthal, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), p. 448.

de Wit, M.

W. C. Scott, M. de Wit, Appl. Phys. Lett. 18, 3 (1971).
[Crossref]

DeFeo, W. E.

Fan, T. Y.

Hamilton, C. E.

Kaneda, Y.

Keirstead, M. S.

M. S. Keirstead, T. M. Baer, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), p. 490.

Koechner, W. K.

W. K. Koechner, Solid-State Laser Engineering (Springer-Verlag, New York, 1988), pp. 350–380.

W. K. Koechner, Solid-State Laser Engineering (Springer-Verlag, New York, 1988), pp. 60–62.

Kubota, S.

Lowenthal, D. D.

S. C. Tidwell, J. F. Seamans, C. E. Hamilton, C. H. Muller, D. D. Lowenthal, Opt. Lett. 16, 584 (1991).
[Crossref] [PubMed]

S. C. Tidwell, M. S. Bowers, A. K. Cousins, D. D. Lowenthal, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), p. 448.

Magni, V.

Masuda, H.

Muller, C. H.

Oka, M.

Sanchez, A.

Scott, W. C.

W. C. Scott, M. de Wit, Appl. Phys. Lett. 18, 3 (1971).
[Crossref]

Seamans, J. F.

S. C. Tidwell, J. F. Seamans, M. S. Bowers, A. K. Cousins, IEEE J. Quantum Electron. 28, 997 (1992).
[Crossref]

S. C. Tidwell, J. F. Seamans, C. E. Hamilton, C. H. Muller, D. D. Lowenthal, Opt. Lett. 16, 584 (1991).
[Crossref] [PubMed]

Sipes, D. L.

D. L. Sipes, Appl. Phys. Lett. 47, 74 (1985).
[Crossref]

Tidwell, S. C.

S. C. Tidwell, J. F. Seamans, M. S. Bowers, A. K. Cousins, IEEE J. Quantum Electron. 28, 997 (1992).
[Crossref]

S. C. Tidwell, J. F. Seamans, C. E. Hamilton, C. H. Muller, D. D. Lowenthal, Opt. Lett. 16, 584 (1991).
[Crossref] [PubMed]

S. C. Tidwell, M. S. Bowers, A. K. Cousins, D. D. Lowenthal, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), p. 448.

Appl. Opt. (1)

Appl. Phys. Lett. (2)

D. L. Sipes, Appl. Phys. Lett. 47, 74 (1985).
[Crossref]

W. C. Scott, M. de Wit, Appl. Phys. Lett. 18, 3 (1971).
[Crossref]

IEEE J. Quantum Electron. (1)

S. C. Tidwell, J. F. Seamans, M. S. Bowers, A. K. Cousins, IEEE J. Quantum Electron. 28, 997 (1992).
[Crossref]

Opt. Lett. (3)

Other (5)

M. S. Keirstead, T. M. Baer, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), p. 490.

For a cost comparison, the price of a 15-W laser diode bar is less than twice that of a 0.5-W fiber-coupled laser diode (Spectra Diode Laboratories, Inc., San Jose, Calif., 1992 Product Catalog).

S. C. Tidwell, M. S. Bowers, A. K. Cousins, D. D. Lowenthal, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), p. 448.

W. K. Koechner, Solid-State Laser Engineering (Springer-Verlag, New York, 1988), pp. 350–380.

W. K. Koechner, Solid-State Laser Engineering (Springer-Verlag, New York, 1988), pp. 60–62.

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Figures (4)

Fig. 1
Fig. 1

Angularly multiplexed pump geometry used to focus the power of eight 15-W laser diode bars into each laser rod.

Fig. 2
Fig. 2

Fluorescence profile of a 6.35-mm-diameter end-pumped Nd:YAG rod. A total pump power of approximately 100 W is absorbed in the rod, 70 W of which is encircled within the 2.4-mm mode diameter.

Fig. 3
Fig. 3

Symmetrical resonator used in TEM00 extraction experiments. Symmetry between the two laser rods allows straightforward correction of the thermal distortion and stress-induced birefringence.

Fig. 4
Fig. 4

Radial profiles of the thermal distortion resulting from two pumped rods and the correction imposed by the aspheric lens. The profiles have different transverse scales because the mode size decreases by approximately 1.4 times between the rod and asphere. OPD, optical path difference.

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