Abstract

The performance of a flash-lamp-pumped Cr:LiSAF unstable laser resonator utilizing a fourth-order super-Gaussian variable reflectivity mirror as an output coupler is described. The super-Gaussian mirror results in a smooth, flattop transverse beam profile in the near field that is advantageous for nonlinear frequency-conversion applications. Long-pulse and Q-switched operation of the Cr:LiSAF unstable laser resonator are described and compared with stable resonator operation. We obtained tunable ultraviolet radiation extending from 267 to 290 nm by frequency mixing the Q-switched Cr:LiSAF laser output with lithium triborate and β-barium borate nonlinear crystals.

© 1998 Optical Society of America

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References

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  1. S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, H. W. Newkirk, “Laser performance of LiSrAlF6:Cr3+,” J. Appl. Phys. 66, 1051–1056 (1989).
    [CrossRef]
  2. M. Stadler, B. H. T. Chai, M. Bass, “Flashlamp pumped Cr:LiSrAlF6 laser,” Appl. Phys. Lett. 58, 216–218 (1991).
    [CrossRef]
  3. P. Beaud, Y. F. Chen, B. H. T. Chai, M. C. Richardson, “Gain properties of LiSrAlF6:Cr3+,” Opt. Lett. 17, 1064–1068 (1992).
    [CrossRef] [PubMed]
  4. S. A. Payne, L. K. Smith, R. J. Beach, B. H. T. Chai, J. H. Tassano, L. D. DeLoach, W. L. Kway, R. W. Solarz, W. F. Krupke, “Properties of Cr3+:LiSrAlF6 crystals for laser operation,” Appl. Opt. 33, 5526–5536 (1994).
    [CrossRef] [PubMed]
  5. J. F. Pinto, L. Esterowitz, G. H. Rosenblatt, “Frequency tripling of a Q-switched Cr:LiSAF laser to the uv region,” IEEE J. Sel. Top. Quantum Electron. 1, 58–61 (1995).
    [CrossRef]
  6. A. E. Seigman, Lasers (University Science, Mill Valley, Calif., 1986), Chaps. 22 and 23.
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
  9. A. Parent, P. Lavigne, “Increased frequency conversion of Nd:YAG laser radiation with a variable-reflectivity mirror,” Opt. Lett. 14, 399–401 (1989).
    [CrossRef] [PubMed]
  10. M. Bowers, “Diffractive analysis of unstable optical resonators with super-Gaussian mirrors,” Opt. Lett. 17, 1319–1321 (1992).
    [CrossRef] [PubMed]
  11. S. P. Velsko, M. Webb, L. Davis, C. Huang, “Phase-matched harmonic generation in lithium triborate (LBO),” IEEE J. Quantum Electron. 27, 2182–2192 (1991).
    [CrossRef]
  12. D. Eimerl, L. Davis, S. Velsko, E. K. Graham, A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968–1983 (1987).
    [CrossRef]

1995 (1)

J. F. Pinto, L. Esterowitz, G. H. Rosenblatt, “Frequency tripling of a Q-switched Cr:LiSAF laser to the uv region,” IEEE J. Sel. Top. Quantum Electron. 1, 58–61 (1995).
[CrossRef]

1994 (1)

1992 (2)

1991 (2)

S. P. Velsko, M. Webb, L. Davis, C. Huang, “Phase-matched harmonic generation in lithium triborate (LBO),” IEEE J. Quantum Electron. 27, 2182–2192 (1991).
[CrossRef]

M. Stadler, B. H. T. Chai, M. Bass, “Flashlamp pumped Cr:LiSrAlF6 laser,” Appl. Phys. Lett. 58, 216–218 (1991).
[CrossRef]

1989 (2)

S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, H. W. Newkirk, “Laser performance of LiSrAlF6:Cr3+,” J. Appl. Phys. 66, 1051–1056 (1989).
[CrossRef]

A. Parent, P. Lavigne, “Increased frequency conversion of Nd:YAG laser radiation with a variable-reflectivity mirror,” Opt. Lett. 14, 399–401 (1989).
[CrossRef] [PubMed]

1988 (1)

1987 (1)

D. Eimerl, L. Davis, S. Velsko, E. K. Graham, A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968–1983 (1987).
[CrossRef]

1985 (1)

Bass, M.

M. Stadler, B. H. T. Chai, M. Bass, “Flashlamp pumped Cr:LiSrAlF6 laser,” Appl. Phys. Lett. 58, 216–218 (1991).
[CrossRef]

Beach, R. J.

Beaud, P.

Bowers, M.

Chai, B. H. T.

Chase, L. L.

S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, H. W. Newkirk, “Laser performance of LiSrAlF6:Cr3+,” J. Appl. Phys. 66, 1051–1056 (1989).
[CrossRef]

Chen, Y. F.

Davis, L.

S. P. Velsko, M. Webb, L. Davis, C. Huang, “Phase-matched harmonic generation in lithium triborate (LBO),” IEEE J. Quantum Electron. 27, 2182–2192 (1991).
[CrossRef]

D. Eimerl, L. Davis, S. Velsko, E. K. Graham, A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968–1983 (1987).
[CrossRef]

De Silvestri, S.

DeLoach, L. D.

Eimerl, D.

D. Eimerl, L. Davis, S. Velsko, E. K. Graham, A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968–1983 (1987).
[CrossRef]

Esterowitz, L.

J. F. Pinto, L. Esterowitz, G. H. Rosenblatt, “Frequency tripling of a Q-switched Cr:LiSAF laser to the uv region,” IEEE J. Sel. Top. Quantum Electron. 1, 58–61 (1995).
[CrossRef]

Graham, E. K.

D. Eimerl, L. Davis, S. Velsko, E. K. Graham, A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968–1983 (1987).
[CrossRef]

Huang, C.

S. P. Velsko, M. Webb, L. Davis, C. Huang, “Phase-matched harmonic generation in lithium triborate (LBO),” IEEE J. Quantum Electron. 27, 2182–2192 (1991).
[CrossRef]

Krupke, W. F.

Kway, W. L.

Laporta, P.

Lavigne, P.

Magni, V.

Majocchi, B.

McCarthy, N.

Newkirk, H. W.

S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, H. W. Newkirk, “Laser performance of LiSrAlF6:Cr3+,” J. Appl. Phys. 66, 1051–1056 (1989).
[CrossRef]

Parent, A.

Payne, S. A.

Pinto, J. F.

J. F. Pinto, L. Esterowitz, G. H. Rosenblatt, “Frequency tripling of a Q-switched Cr:LiSAF laser to the uv region,” IEEE J. Sel. Top. Quantum Electron. 1, 58–61 (1995).
[CrossRef]

Richardson, M. C.

Rosenblatt, G. H.

J. F. Pinto, L. Esterowitz, G. H. Rosenblatt, “Frequency tripling of a Q-switched Cr:LiSAF laser to the uv region,” IEEE J. Sel. Top. Quantum Electron. 1, 58–61 (1995).
[CrossRef]

Seigman, A. E.

A. E. Seigman, Lasers (University Science, Mill Valley, Calif., 1986), Chaps. 22 and 23.

Smith, L. K.

Solarz, R. W.

Stadler, M.

M. Stadler, B. H. T. Chai, M. Bass, “Flashlamp pumped Cr:LiSrAlF6 laser,” Appl. Phys. Lett. 58, 216–218 (1991).
[CrossRef]

Svelto, O.

Tassano, J. H.

Velsko, S.

D. Eimerl, L. Davis, S. Velsko, E. K. Graham, A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968–1983 (1987).
[CrossRef]

Velsko, S. P.

S. P. Velsko, M. Webb, L. Davis, C. Huang, “Phase-matched harmonic generation in lithium triborate (LBO),” IEEE J. Quantum Electron. 27, 2182–2192 (1991).
[CrossRef]

Webb, M.

S. P. Velsko, M. Webb, L. Davis, C. Huang, “Phase-matched harmonic generation in lithium triborate (LBO),” IEEE J. Quantum Electron. 27, 2182–2192 (1991).
[CrossRef]

Zalkin, A.

D. Eimerl, L. Davis, S. Velsko, E. K. Graham, A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968–1983 (1987).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. Lett. (1)

M. Stadler, B. H. T. Chai, M. Bass, “Flashlamp pumped Cr:LiSrAlF6 laser,” Appl. Phys. Lett. 58, 216–218 (1991).
[CrossRef]

IEEE J. Quantum Electron. (1)

S. P. Velsko, M. Webb, L. Davis, C. Huang, “Phase-matched harmonic generation in lithium triborate (LBO),” IEEE J. Quantum Electron. 27, 2182–2192 (1991).
[CrossRef]

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

J. F. Pinto, L. Esterowitz, G. H. Rosenblatt, “Frequency tripling of a Q-switched Cr:LiSAF laser to the uv region,” IEEE J. Sel. Top. Quantum Electron. 1, 58–61 (1995).
[CrossRef]

J. Appl. Phys. (2)

D. Eimerl, L. Davis, S. Velsko, E. K. Graham, A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968–1983 (1987).
[CrossRef]

S. A. Payne, L. L. Chase, L. K. Smith, W. L. Kway, H. W. Newkirk, “Laser performance of LiSrAlF6:Cr3+,” J. Appl. Phys. 66, 1051–1056 (1989).
[CrossRef]

Opt. Lett. (5)

Other (1)

A. E. Seigman, Lasers (University Science, Mill Valley, Calif., 1986), Chaps. 22 and 23.

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Figures (4)

Fig. 1
Fig. 1

Schematic diagram of the Cr:LiSAF unstable laser resonator configuration and frequency-mixing scheme.

Fig. 2
Fig. 2

Cr:LiSAF unstable–stable resonator laser output energy as a function of electrical energy to the flash lamp.

Fig. 3
Fig. 3

(a) Near- and (b) far-field intensity distributions for the n = 4 super-Gaussian unstable resonator. (c) Far-field intensity distribution for the multimode stable resonator output.

Fig. 4
Fig. 4

Energy tuning curves corresponding to the fundamental, second-, and third-harmonic outputs of the Cr:LiSAF laser.

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