Abstract

We have fabricated a diode-array end-pumped Yb:YAG rod laser with output powers greater than 200  W cw and 195  W Q-switched at 5  kHz. At an output power of 183  W and a repetition rate of 5  kHz, the beam quality was measured to be M2=2.4. The laser design incorporates a hollow lens duct to concentrate the diode pump light for delivery to the end of the laser rod while maintaining access to the laser beam. This configuration provides increased flexibility for the resonator design and permits the use of birefringence compensation in the cavity to yield polarized output with increased efficiency. Using the recently described birefringence compensation method of Clarkson et al.  [in Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1998), paper CTuI3], we obtained 112  W of cw power with a polarized beam of M2=3.2.

© 1999 Optical Society of America

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References

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  1. W. F. Krupke and L. L. Chase, Opt. Quantum Electron. 22, S1 (1990).
    [CrossRef]
  2. T. Y. Fan, IEEE J. Quantum Electron. 29, 1457 (1993).
    [CrossRef]
  3. H. Bruesselbach and D. Sumida, Opt. Lett. 21, 480 (1996).
    [CrossRef] [PubMed]
  4. A. Giesen, H. Hugel, A. Voss, K. Wittig, U. Brauch, and H. Opower, Appl. Phys. B 58, 365 (1994);M. Karszewski, U. Brauch, K. Contag, S. Erhard, A. Giesen, I. Johannsen, C. Stewan, and A. Voss, in Advanced Solid-State Lasers, W. R. Bosenberg and M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), p. 296.
    [CrossRef]
  5. C. Bibeau, R. J. Beach, S. C. Mitchell, M. A. Emanuel, J. A. Skidmore, C. A. Ebbers, S. B. Sutton, and K. S. Jancaitis, IEEE J. Quantum Electron. 34, 2010 (1998).
    [CrossRef]
  6. R. J. Beach, Appl. Opt. 35, 2005 (1996).
    [CrossRef] [PubMed]
  7. R. J. Beach, M. A. Emanuel, B. L. Freitas, J. A. Skidmore, N. W. Carlson, W. J. Bennett, and R. W. Solarz, Proc. SPIE 2383, 283 (1995).
    [CrossRef]
  8. V. Magni, G. Valentini, and S. De Silvestri, Opt. Quantum Electron. 23, 1105 (1991), and references therein.
    [CrossRef]
  9. Modeling was performed with Paraxia software (Sciopt Enterprises, San Jose, Calif.).
  10. A. E. Siegman, Proc. SPIE 1224, 2 (1990).
    [CrossRef]
  11. R. J. Beach, IEEE J. Quantum Electron. 31, 1606 (1995).
    [CrossRef]
  12. W. A. Clarkson, N. S. Felgate, and D. C. Hanna, in Conference on Lasers and Electro-Optics (CLEO), Vol.??6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), paper CTuI3, pp. 102–103.
  13. S. C. Tidwell, J. F. Seamans, M. S. Bowers, and A. Cousins, IEEE J. Quantum Electron. 28, 997 (1992).
    [CrossRef]
  14. W. C. Scott and M. DeWitt, Appl. Phys. Lett. 18, 3 (1971).
    [CrossRef]

1998 (1)

C. Bibeau, R. J. Beach, S. C. Mitchell, M. A. Emanuel, J. A. Skidmore, C. A. Ebbers, S. B. Sutton, and K. S. Jancaitis, IEEE J. Quantum Electron. 34, 2010 (1998).
[CrossRef]

1996 (2)

1995 (2)

R. J. Beach, M. A. Emanuel, B. L. Freitas, J. A. Skidmore, N. W. Carlson, W. J. Bennett, and R. W. Solarz, Proc. SPIE 2383, 283 (1995).
[CrossRef]

R. J. Beach, IEEE J. Quantum Electron. 31, 1606 (1995).
[CrossRef]

1994 (1)

A. Giesen, H. Hugel, A. Voss, K. Wittig, U. Brauch, and H. Opower, Appl. Phys. B 58, 365 (1994);M. Karszewski, U. Brauch, K. Contag, S. Erhard, A. Giesen, I. Johannsen, C. Stewan, and A. Voss, in Advanced Solid-State Lasers, W. R. Bosenberg and M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), p. 296.
[CrossRef]

1993 (1)

T. Y. Fan, IEEE J. Quantum Electron. 29, 1457 (1993).
[CrossRef]

1992 (1)

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

1991 (1)

V. Magni, G. Valentini, and S. De Silvestri, Opt. Quantum Electron. 23, 1105 (1991), and references therein.
[CrossRef]

1990 (2)

A. E. Siegman, Proc. SPIE 1224, 2 (1990).
[CrossRef]

W. F. Krupke and L. L. Chase, Opt. Quantum Electron. 22, S1 (1990).
[CrossRef]

1971 (1)

W. C. Scott and M. DeWitt, Appl. Phys. Lett. 18, 3 (1971).
[CrossRef]

Beach, R. J.

C. Bibeau, R. J. Beach, S. C. Mitchell, M. A. Emanuel, J. A. Skidmore, C. A. Ebbers, S. B. Sutton, and K. S. Jancaitis, IEEE J. Quantum Electron. 34, 2010 (1998).
[CrossRef]

R. J. Beach, Appl. Opt. 35, 2005 (1996).
[CrossRef] [PubMed]

R. J. Beach, IEEE J. Quantum Electron. 31, 1606 (1995).
[CrossRef]

R. J. Beach, M. A. Emanuel, B. L. Freitas, J. A. Skidmore, N. W. Carlson, W. J. Bennett, and R. W. Solarz, Proc. SPIE 2383, 283 (1995).
[CrossRef]

Bennett, W. J.

R. J. Beach, M. A. Emanuel, B. L. Freitas, J. A. Skidmore, N. W. Carlson, W. J. Bennett, and R. W. Solarz, Proc. SPIE 2383, 283 (1995).
[CrossRef]

Bibeau, C.

C. Bibeau, R. J. Beach, S. C. Mitchell, M. A. Emanuel, J. A. Skidmore, C. A. Ebbers, S. B. Sutton, and K. S. Jancaitis, IEEE J. Quantum Electron. 34, 2010 (1998).
[CrossRef]

Bowers, M. S.

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

Brauch, U.

A. Giesen, H. Hugel, A. Voss, K. Wittig, U. Brauch, and H. Opower, Appl. Phys. B 58, 365 (1994);M. Karszewski, U. Brauch, K. Contag, S. Erhard, A. Giesen, I. Johannsen, C. Stewan, and A. Voss, in Advanced Solid-State Lasers, W. R. Bosenberg and M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), p. 296.
[CrossRef]

Bruesselbach, H.

Carlson, N. W.

R. J. Beach, M. A. Emanuel, B. L. Freitas, J. A. Skidmore, N. W. Carlson, W. J. Bennett, and R. W. Solarz, Proc. SPIE 2383, 283 (1995).
[CrossRef]

Chase, L. L.

W. F. Krupke and L. L. Chase, Opt. Quantum Electron. 22, S1 (1990).
[CrossRef]

Clarkson, W. A.

W. A. Clarkson, N. S. Felgate, and D. C. Hanna, in Conference on Lasers and Electro-Optics (CLEO), Vol.??6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), paper CTuI3, pp. 102–103.

Cousins, A.

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

De Silvestri, S.

V. Magni, G. Valentini, and S. De Silvestri, Opt. Quantum Electron. 23, 1105 (1991), and references therein.
[CrossRef]

DeWitt, M.

W. C. Scott and M. DeWitt, Appl. Phys. Lett. 18, 3 (1971).
[CrossRef]

Ebbers, C. A.

C. Bibeau, R. J. Beach, S. C. Mitchell, M. A. Emanuel, J. A. Skidmore, C. A. Ebbers, S. B. Sutton, and K. S. Jancaitis, IEEE J. Quantum Electron. 34, 2010 (1998).
[CrossRef]

Emanuel, M. A.

C. Bibeau, R. J. Beach, S. C. Mitchell, M. A. Emanuel, J. A. Skidmore, C. A. Ebbers, S. B. Sutton, and K. S. Jancaitis, IEEE J. Quantum Electron. 34, 2010 (1998).
[CrossRef]

R. J. Beach, M. A. Emanuel, B. L. Freitas, J. A. Skidmore, N. W. Carlson, W. J. Bennett, and R. W. Solarz, Proc. SPIE 2383, 283 (1995).
[CrossRef]

Fan, T. Y.

T. Y. Fan, IEEE J. Quantum Electron. 29, 1457 (1993).
[CrossRef]

Felgate, N. S.

W. A. Clarkson, N. S. Felgate, and D. C. Hanna, in Conference on Lasers and Electro-Optics (CLEO), Vol.??6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), paper CTuI3, pp. 102–103.

Freitas, B. L.

R. J. Beach, M. A. Emanuel, B. L. Freitas, J. A. Skidmore, N. W. Carlson, W. J. Bennett, and R. W. Solarz, Proc. SPIE 2383, 283 (1995).
[CrossRef]

Giesen, A.

A. Giesen, H. Hugel, A. Voss, K. Wittig, U. Brauch, and H. Opower, Appl. Phys. B 58, 365 (1994);M. Karszewski, U. Brauch, K. Contag, S. Erhard, A. Giesen, I. Johannsen, C. Stewan, and A. Voss, in Advanced Solid-State Lasers, W. R. Bosenberg and M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), p. 296.
[CrossRef]

Hanna, D. C.

W. A. Clarkson, N. S. Felgate, and D. C. Hanna, in Conference on Lasers and Electro-Optics (CLEO), Vol.??6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), paper CTuI3, pp. 102–103.

Hugel, H.

A. Giesen, H. Hugel, A. Voss, K. Wittig, U. Brauch, and H. Opower, Appl. Phys. B 58, 365 (1994);M. Karszewski, U. Brauch, K. Contag, S. Erhard, A. Giesen, I. Johannsen, C. Stewan, and A. Voss, in Advanced Solid-State Lasers, W. R. Bosenberg and M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), p. 296.
[CrossRef]

Jancaitis, K. S.

C. Bibeau, R. J. Beach, S. C. Mitchell, M. A. Emanuel, J. A. Skidmore, C. A. Ebbers, S. B. Sutton, and K. S. Jancaitis, IEEE J. Quantum Electron. 34, 2010 (1998).
[CrossRef]

Krupke, W. F.

W. F. Krupke and L. L. Chase, Opt. Quantum Electron. 22, S1 (1990).
[CrossRef]

Magni, V.

V. Magni, G. Valentini, and S. De Silvestri, Opt. Quantum Electron. 23, 1105 (1991), and references therein.
[CrossRef]

Mitchell, S. C.

C. Bibeau, R. J. Beach, S. C. Mitchell, M. A. Emanuel, J. A. Skidmore, C. A. Ebbers, S. B. Sutton, and K. S. Jancaitis, IEEE J. Quantum Electron. 34, 2010 (1998).
[CrossRef]

Opower, H.

A. Giesen, H. Hugel, A. Voss, K. Wittig, U. Brauch, and H. Opower, Appl. Phys. B 58, 365 (1994);M. Karszewski, U. Brauch, K. Contag, S. Erhard, A. Giesen, I. Johannsen, C. Stewan, and A. Voss, in Advanced Solid-State Lasers, W. R. Bosenberg and M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), p. 296.
[CrossRef]

Scott, W. C.

W. C. Scott and M. DeWitt, Appl. Phys. Lett. 18, 3 (1971).
[CrossRef]

Seamans, J. F.

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

Siegman, A. E.

A. E. Siegman, Proc. SPIE 1224, 2 (1990).
[CrossRef]

Skidmore, J. A.

C. Bibeau, R. J. Beach, S. C. Mitchell, M. A. Emanuel, J. A. Skidmore, C. A. Ebbers, S. B. Sutton, and K. S. Jancaitis, IEEE J. Quantum Electron. 34, 2010 (1998).
[CrossRef]

R. J. Beach, M. A. Emanuel, B. L. Freitas, J. A. Skidmore, N. W. Carlson, W. J. Bennett, and R. W. Solarz, Proc. SPIE 2383, 283 (1995).
[CrossRef]

Solarz, R. W.

R. J. Beach, M. A. Emanuel, B. L. Freitas, J. A. Skidmore, N. W. Carlson, W. J. Bennett, and R. W. Solarz, Proc. SPIE 2383, 283 (1995).
[CrossRef]

Sumida, D.

Sutton, S. B.

C. Bibeau, R. J. Beach, S. C. Mitchell, M. A. Emanuel, J. A. Skidmore, C. A. Ebbers, S. B. Sutton, and K. S. Jancaitis, IEEE J. Quantum Electron. 34, 2010 (1998).
[CrossRef]

Tidwell, S. C.

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

Valentini, G.

V. Magni, G. Valentini, and S. De Silvestri, Opt. Quantum Electron. 23, 1105 (1991), and references therein.
[CrossRef]

Voss, A.

A. Giesen, H. Hugel, A. Voss, K. Wittig, U. Brauch, and H. Opower, Appl. Phys. B 58, 365 (1994);M. Karszewski, U. Brauch, K. Contag, S. Erhard, A. Giesen, I. Johannsen, C. Stewan, and A. Voss, in Advanced Solid-State Lasers, W. R. Bosenberg and M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), p. 296.
[CrossRef]

Wittig, K.

A. Giesen, H. Hugel, A. Voss, K. Wittig, U. Brauch, and H. Opower, Appl. Phys. B 58, 365 (1994);M. Karszewski, U. Brauch, K. Contag, S. Erhard, A. Giesen, I. Johannsen, C. Stewan, and A. Voss, in Advanced Solid-State Lasers, W. R. Bosenberg and M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), p. 296.
[CrossRef]

Appl. Opt. (1)

Appl. Phys. B (1)

A. Giesen, H. Hugel, A. Voss, K. Wittig, U. Brauch, and H. Opower, Appl. Phys. B 58, 365 (1994);M. Karszewski, U. Brauch, K. Contag, S. Erhard, A. Giesen, I. Johannsen, C. Stewan, and A. Voss, in Advanced Solid-State Lasers, W. R. Bosenberg and M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), p. 296.
[CrossRef]

Appl. Phys. Lett. (1)

W. C. Scott and M. DeWitt, Appl. Phys. Lett. 18, 3 (1971).
[CrossRef]

IEEE J. Quantum Electron. (4)

R. J. Beach, IEEE J. Quantum Electron. 31, 1606 (1995).
[CrossRef]

C. Bibeau, R. J. Beach, S. C. Mitchell, M. A. Emanuel, J. A. Skidmore, C. A. Ebbers, S. B. Sutton, and K. S. Jancaitis, IEEE J. Quantum Electron. 34, 2010 (1998).
[CrossRef]

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

T. Y. Fan, IEEE J. Quantum Electron. 29, 1457 (1993).
[CrossRef]

Opt. Lett. (1)

Opt. Quantum Electron. (2)

W. F. Krupke and L. L. Chase, Opt. Quantum Electron. 22, S1 (1990).
[CrossRef]

V. Magni, G. Valentini, and S. De Silvestri, Opt. Quantum Electron. 23, 1105 (1991), and references therein.
[CrossRef]

Proc. SPIE (2)

R. J. Beach, M. A. Emanuel, B. L. Freitas, J. A. Skidmore, N. W. Carlson, W. J. Bennett, and R. W. Solarz, Proc. SPIE 2383, 283 (1995).
[CrossRef]

A. E. Siegman, Proc. SPIE 1224, 2 (1990).
[CrossRef]

Other (2)

Modeling was performed with Paraxia software (Sciopt Enterprises, San Jose, Calif.).

W. A. Clarkson, N. S. Felgate, and D. C. Hanna, in Conference on Lasers and Electro-Optics (CLEO), Vol.??6 of 1998 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1998), paper CTuI3, pp. 102–103.

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Figures (4)

Fig. 1
Fig. 1

Schematic of the laser head, showing the 2-mm-diameter laser rod with flanged, undoped end caps, the hollow lens duct used for pump light delivery to the end of the rod, the two halves of the diode array with the laser beam passing between them, the acousto-optic (AO) Q switch, the 25-cm radius-of-curvature high reflector (HR), and the 40-cm radius-of-curvature output coupler (OC).

Fig. 2
Fig. 2

Cw output power versus diode pump power measured with the 56% reflectivity output coupler. The threshold at 1.1-kW pump power corresponds to the lower stability edge for the resonator.

Fig. 3
Fig. 3

Measurements of the second moment of the intensity distribution at various distances from a focusing lens for 183-W output power at a Q-switched repetition rate of 5  kHz. Filled and open symbols, horizontal and vertical axes, respectively. The best fit to the data yields M2 horizontal=2.38 and M2 vertical=2.40.

Fig. 4
Fig. 4

Comparison of measured (symbols) and predicted (curve) output pulse energies for a diode pump power of 1865  W and an output coupler reflectivity of 0.44.

Equations (4)

Equations on this page are rendered with MathJax. Learn more.

Ir=2πW2exp-2r/W2,
W=Mω0.
ηmod e=0rrodIr2πrdrI0πr2=1πrrod20rroddr2πrexp-2r/W2=W22rrod21-exp-2rrod/W2,
Tclip=0rroddr2πrIr=1-exp-2rrod/W2.

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