Abstract

A diode-pumped discrete-element ring laser that can be end pumped simultaneously along two intersecting axes is described. The maximum power obtained was 493-mW single frequency at 1.06 μm. A demonstration of cw and Q-switched operations was performed for the fundamental and second harmonic, and a second-harmonic conversion efficiency of 43% was obtained. This ring laser is shown to incorporate significant advantages in terms of alignment and scalability.

© 1992 Optical Society of America

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References

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  1. T. J. Kane, R. L. Byer, “Monolithic, unidirectional single-mode Nd:YAG ring laser,” Opt. Lett. 10, 65–67 (1985).
    [CrossRef] [PubMed]
  2. W. R. Trutna, D. K. Donald, M. Nazarathy, “Unidirectional diode-laser-pumped Nd:YAG ring laser with a small magnetic field,” Opt. Lett. 12, 248–250 (1987).
    [CrossRef] [PubMed]
  3. D. G. Scerbak, “Monolithic unidirectional planar ring oscillators,” in Solid-State Lasers, G. Dubé, ed., Proc. Soc. Photo-Opt. Instrum. Eng.1223, 196–205 (1990).
  4. W. A. Clarkson, D. C. Hanna, “Single frequency Q-switched operation of a laser diode-pumped Nd:YAG ring laser,” Opt. Commun. 73, 469–474 (1989).
    [CrossRef]
  5. J. Harrison, A. Finch, P. F. Moulton, “Rapidly tunable, single-frequency, diode-pumped Nd:YAG laser,” in Digest of Topical Meeting on Advanced Solid State Lasers (Optical Society of America, Washington, D.C., 1991); paper MF3.
  6. R. Scheps, J. Myers, “Single frequency Nd:YAG ring laser pumped by laser diodes,” IEEE J. Quant. Electron. 26, 413–416 (1990).
    [CrossRef]
  7. R. Scheps, J. F. Myers, S. A. Payne, “CW and Q-switched operation of a low threshold Cr+3:LiCaAlF6 laser,” IEEE Photon. Technol. Lett. 2, 626–628 (1990).
    [CrossRef]
  8. D. R. Scifres, R. A. Sprague, W. Streifer, R. D. Burnham, “Focussing of a 7700-Å high power phased array semiconductor laser,” Appl. Phys. Lett. 41, 1121–1123 (1982).
    [CrossRef]
  9. R. B. Chesler, M. A. Karr, J. E. Geusic, “An experimental and theoretical study of high repetition rate Q-switching in Nd:YAG lasers,” Proc. IEEE 58, 1899–1914 (1970).
    [CrossRef]
  10. E. A. P. Cheng, T. J. Kane, “High-power single-mode diode-pumped Nd:YAG laser using a monolithic nonplanar ring resonator,” Opt. Lett. 16, 478–480 (1991).
    [CrossRef] [PubMed]
  11. H. W. Kogelnik, E. P. Ippen, A. Dienes, C. V. Shank, “Astigmatically compensated cavities for cw dye lasers,” IEEE J. Quantum Electron. QE-8, 373–379 (1972).
    [CrossRef]
  12. J. Neev, F. V. Kowalski, “Unidirectional device for a ring laser using an acousto-optic modulator,” Opt. Lett. 13, 375–377 (1988).
    [CrossRef] [PubMed]
  13. W. A. Clarkson, D. C. Hanna, “Acousto-optically induced unidirectional single mode operation of a Q-switched miniature Nd:YAG ring laser,” Opt. Commun. 81, 375–378 (1991).
    [CrossRef]

1991 (2)

W. A. Clarkson, D. C. Hanna, “Acousto-optically induced unidirectional single mode operation of a Q-switched miniature Nd:YAG ring laser,” Opt. Commun. 81, 375–378 (1991).
[CrossRef]

E. A. P. Cheng, T. J. Kane, “High-power single-mode diode-pumped Nd:YAG laser using a monolithic nonplanar ring resonator,” Opt. Lett. 16, 478–480 (1991).
[CrossRef] [PubMed]

1990 (2)

R. Scheps, J. Myers, “Single frequency Nd:YAG ring laser pumped by laser diodes,” IEEE J. Quant. Electron. 26, 413–416 (1990).
[CrossRef]

R. Scheps, J. F. Myers, S. A. Payne, “CW and Q-switched operation of a low threshold Cr+3:LiCaAlF6 laser,” IEEE Photon. Technol. Lett. 2, 626–628 (1990).
[CrossRef]

1989 (1)

W. A. Clarkson, D. C. Hanna, “Single frequency Q-switched operation of a laser diode-pumped Nd:YAG ring laser,” Opt. Commun. 73, 469–474 (1989).
[CrossRef]

1988 (1)

1987 (1)

1985 (1)

1982 (1)

D. R. Scifres, R. A. Sprague, W. Streifer, R. D. Burnham, “Focussing of a 7700-Å high power phased array semiconductor laser,” Appl. Phys. Lett. 41, 1121–1123 (1982).
[CrossRef]

1972 (1)

H. W. Kogelnik, E. P. Ippen, A. Dienes, C. V. Shank, “Astigmatically compensated cavities for cw dye lasers,” IEEE J. Quantum Electron. QE-8, 373–379 (1972).
[CrossRef]

1970 (1)

R. B. Chesler, M. A. Karr, J. E. Geusic, “An experimental and theoretical study of high repetition rate Q-switching in Nd:YAG lasers,” Proc. IEEE 58, 1899–1914 (1970).
[CrossRef]

Burnham, R. D.

D. R. Scifres, R. A. Sprague, W. Streifer, R. D. Burnham, “Focussing of a 7700-Å high power phased array semiconductor laser,” Appl. Phys. Lett. 41, 1121–1123 (1982).
[CrossRef]

Byer, R. L.

Cheng, E. A. P.

Chesler, R. B.

R. B. Chesler, M. A. Karr, J. E. Geusic, “An experimental and theoretical study of high repetition rate Q-switching in Nd:YAG lasers,” Proc. IEEE 58, 1899–1914 (1970).
[CrossRef]

Clarkson, W. A.

W. A. Clarkson, D. C. Hanna, “Acousto-optically induced unidirectional single mode operation of a Q-switched miniature Nd:YAG ring laser,” Opt. Commun. 81, 375–378 (1991).
[CrossRef]

W. A. Clarkson, D. C. Hanna, “Single frequency Q-switched operation of a laser diode-pumped Nd:YAG ring laser,” Opt. Commun. 73, 469–474 (1989).
[CrossRef]

Dienes, A.

H. W. Kogelnik, E. P. Ippen, A. Dienes, C. V. Shank, “Astigmatically compensated cavities for cw dye lasers,” IEEE J. Quantum Electron. QE-8, 373–379 (1972).
[CrossRef]

Donald, D. K.

Finch, A.

J. Harrison, A. Finch, P. F. Moulton, “Rapidly tunable, single-frequency, diode-pumped Nd:YAG laser,” in Digest of Topical Meeting on Advanced Solid State Lasers (Optical Society of America, Washington, D.C., 1991); paper MF3.

Geusic, J. E.

R. B. Chesler, M. A. Karr, J. E. Geusic, “An experimental and theoretical study of high repetition rate Q-switching in Nd:YAG lasers,” Proc. IEEE 58, 1899–1914 (1970).
[CrossRef]

Hanna, D. C.

W. A. Clarkson, D. C. Hanna, “Acousto-optically induced unidirectional single mode operation of a Q-switched miniature Nd:YAG ring laser,” Opt. Commun. 81, 375–378 (1991).
[CrossRef]

W. A. Clarkson, D. C. Hanna, “Single frequency Q-switched operation of a laser diode-pumped Nd:YAG ring laser,” Opt. Commun. 73, 469–474 (1989).
[CrossRef]

Harrison, J.

J. Harrison, A. Finch, P. F. Moulton, “Rapidly tunable, single-frequency, diode-pumped Nd:YAG laser,” in Digest of Topical Meeting on Advanced Solid State Lasers (Optical Society of America, Washington, D.C., 1991); paper MF3.

Ippen, E. P.

H. W. Kogelnik, E. P. Ippen, A. Dienes, C. V. Shank, “Astigmatically compensated cavities for cw dye lasers,” IEEE J. Quantum Electron. QE-8, 373–379 (1972).
[CrossRef]

Kane, T. J.

Karr, M. A.

R. B. Chesler, M. A. Karr, J. E. Geusic, “An experimental and theoretical study of high repetition rate Q-switching in Nd:YAG lasers,” Proc. IEEE 58, 1899–1914 (1970).
[CrossRef]

Kogelnik, H. W.

H. W. Kogelnik, E. P. Ippen, A. Dienes, C. V. Shank, “Astigmatically compensated cavities for cw dye lasers,” IEEE J. Quantum Electron. QE-8, 373–379 (1972).
[CrossRef]

Kowalski, F. V.

Moulton, P. F.

J. Harrison, A. Finch, P. F. Moulton, “Rapidly tunable, single-frequency, diode-pumped Nd:YAG laser,” in Digest of Topical Meeting on Advanced Solid State Lasers (Optical Society of America, Washington, D.C., 1991); paper MF3.

Myers, J.

R. Scheps, J. Myers, “Single frequency Nd:YAG ring laser pumped by laser diodes,” IEEE J. Quant. Electron. 26, 413–416 (1990).
[CrossRef]

Myers, J. F.

R. Scheps, J. F. Myers, S. A. Payne, “CW and Q-switched operation of a low threshold Cr+3:LiCaAlF6 laser,” IEEE Photon. Technol. Lett. 2, 626–628 (1990).
[CrossRef]

Nazarathy, M.

Neev, J.

Payne, S. A.

R. Scheps, J. F. Myers, S. A. Payne, “CW and Q-switched operation of a low threshold Cr+3:LiCaAlF6 laser,” IEEE Photon. Technol. Lett. 2, 626–628 (1990).
[CrossRef]

Scerbak, D. G.

D. G. Scerbak, “Monolithic unidirectional planar ring oscillators,” in Solid-State Lasers, G. Dubé, ed., Proc. Soc. Photo-Opt. Instrum. Eng.1223, 196–205 (1990).

Scheps, R.

R. Scheps, J. F. Myers, S. A. Payne, “CW and Q-switched operation of a low threshold Cr+3:LiCaAlF6 laser,” IEEE Photon. Technol. Lett. 2, 626–628 (1990).
[CrossRef]

R. Scheps, J. Myers, “Single frequency Nd:YAG ring laser pumped by laser diodes,” IEEE J. Quant. Electron. 26, 413–416 (1990).
[CrossRef]

Scifres, D. R.

D. R. Scifres, R. A. Sprague, W. Streifer, R. D. Burnham, “Focussing of a 7700-Å high power phased array semiconductor laser,” Appl. Phys. Lett. 41, 1121–1123 (1982).
[CrossRef]

Shank, C. V.

H. W. Kogelnik, E. P. Ippen, A. Dienes, C. V. Shank, “Astigmatically compensated cavities for cw dye lasers,” IEEE J. Quantum Electron. QE-8, 373–379 (1972).
[CrossRef]

Sprague, R. A.

D. R. Scifres, R. A. Sprague, W. Streifer, R. D. Burnham, “Focussing of a 7700-Å high power phased array semiconductor laser,” Appl. Phys. Lett. 41, 1121–1123 (1982).
[CrossRef]

Streifer, W.

D. R. Scifres, R. A. Sprague, W. Streifer, R. D. Burnham, “Focussing of a 7700-Å high power phased array semiconductor laser,” Appl. Phys. Lett. 41, 1121–1123 (1982).
[CrossRef]

Trutna, W. R.

Appl. Phys. Lett. (1)

D. R. Scifres, R. A. Sprague, W. Streifer, R. D. Burnham, “Focussing of a 7700-Å high power phased array semiconductor laser,” Appl. Phys. Lett. 41, 1121–1123 (1982).
[CrossRef]

IEEE J. Quant. Electron. (1)

R. Scheps, J. Myers, “Single frequency Nd:YAG ring laser pumped by laser diodes,” IEEE J. Quant. Electron. 26, 413–416 (1990).
[CrossRef]

IEEE J. Quantum Electron. (1)

H. W. Kogelnik, E. P. Ippen, A. Dienes, C. V. Shank, “Astigmatically compensated cavities for cw dye lasers,” IEEE J. Quantum Electron. QE-8, 373–379 (1972).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

R. Scheps, J. F. Myers, S. A. Payne, “CW and Q-switched operation of a low threshold Cr+3:LiCaAlF6 laser,” IEEE Photon. Technol. Lett. 2, 626–628 (1990).
[CrossRef]

Opt. Commun. (2)

W. A. Clarkson, D. C. Hanna, “Single frequency Q-switched operation of a laser diode-pumped Nd:YAG ring laser,” Opt. Commun. 73, 469–474 (1989).
[CrossRef]

W. A. Clarkson, D. C. Hanna, “Acousto-optically induced unidirectional single mode operation of a Q-switched miniature Nd:YAG ring laser,” Opt. Commun. 81, 375–378 (1991).
[CrossRef]

Opt. Lett. (4)

Proc. IEEE (1)

R. B. Chesler, M. A. Karr, J. E. Geusic, “An experimental and theoretical study of high repetition rate Q-switching in Nd:YAG lasers,” Proc. IEEE 58, 1899–1914 (1970).
[CrossRef]

Other (2)

D. G. Scerbak, “Monolithic unidirectional planar ring oscillators,” in Solid-State Lasers, G. Dubé, ed., Proc. Soc. Photo-Opt. Instrum. Eng.1223, 196–205 (1990).

J. Harrison, A. Finch, P. F. Moulton, “Rapidly tunable, single-frequency, diode-pumped Nd:YAG laser,” in Digest of Topical Meeting on Advanced Solid State Lasers (Optical Society of America, Washington, D.C., 1991); paper MF3.

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Figures (3)

Fig. 1
Fig. 1

Configuration of the triangular ring. The rod is contained in a 1-in.- (2.54 cm-) diameter neodymium–iron–boron magnet for Faraday rotation. Unidirectional operation is represented for the case when optical propagation proceeds counterclockwise. The components shown in Ⓐprovide a collimated mode between the two 25-cm ROC mirrors, and Ⓑis designed to produce a second waist between the two 10-cm ROC mirrors. The KTP crystal and chopper shown in Ⓑwere used for second-harmonic generation and Q-switched operation, respectively.

Fig. 2
Fig. 2

Scanning Fabry–Perot trace of the collimated ring output at 304 mW. 1.5-MHz linewidth is resolution limited. The horizontal scale is 30 MHz/div.

Fig. 3
Fig. 3

Q-switched pulse shape at 1.06 μm for the focused ring. The horizontal scale is 50 ns/div.

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