Abstract

We achieved a 1.3× diffraction-limited output beam with a pulse energy of 0.76 J at 60 Hz (average power of 46 W) at 1.064 μm from a diode-pumped Nd:YAG master oscillator power amplifier rod laser using a diamond-turned aspheric optic to compensate thermally induced phase distortion of the gain medium. The output was frequency doubled in KTP to 30 W (0.5-J pulse energy) and 2.4× diffraction-limited at 532 nm.

© 1996 Optical Society of America

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References

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  1. R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “One joule per pulse, 100 watt, diode-pumped, near diffraction limited, phase conjugated, Nd:YAG master oscillator power amplifier,” in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 2–8.
  2. R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “High brightness diode-pumped solid-state laser development,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–276.
  3. D. A. Rockwell, “A review of phase-conjugate solid-state lasers,” IEEE J. Quantum Electron. 24, 1124–1140 (1988).
    [CrossRef]
  4. C. B. Dane, L. E. Zapata, L. A. Hackel, “Long pulse regenerative amplifier architecture with diffraction-limited output divergence,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–275.
  5. N. F. Andreev, E. Khazanov, G. A. Pasmanik, “Applications of Brillouin cells to high repetition rate solid-state lasers,” IEEE J. Quantum Electron. 28, 330–341 (1992).
    [CrossRef]
  6. H. J. Eichler, A. Haase, R. Menzel, “100 watt average output power 1.2 diffraction limited beam from pulsed neodymium single-rod amplifier with SBS phase conjugation,” IEEE J. Quantum Electron. 31, 1265–1269 (1995).
    [CrossRef]
  7. S. C. Tidwell, J. F. Seamans, D. D. Lowenthal, in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 150–153.
  8. S. C. Tidwell, J. F. Seamans, M. S. Bowers, “Highly efficient 60-W TEM00 cw diode-end-pumped Nd:YAG laser,” Opt. Lett. 18, 116–118 (1993).
    [CrossRef] [PubMed]
  9. J. R. Leger, D. Chen, Z. Wang, “Diffractive optical element for mode shaping of a Nd:YAG laser,” Opt. Lett. 19, 108–110 (1994).
    [CrossRef] [PubMed]
  10. L. M. Frantz, J. S. Nodvik, “Theory of pulse propagation in a laser amplifier,” J. Appl. Phys. 34, 2346–2349 (1963).
    [CrossRef]
  11. J. J. Kasinski, W. Hughes, D. DiBiase, P. Bournes, R. Burnham, “One joule output from a diode-array-pumped Nd: YAG laser with side-pumped rod geometry,” IEEE J. Quantum Electron. 28, 977–985 (1992).
    [CrossRef]
  12. O. Svelto, Principles of Lasers, 2nd ed. (Plenum, New York, 1982).
  13. L. E. Holder, C. Kennedy, L. Long, G. Dube, “One joule per Q-switched pulse diode-pumped laser,” IEEE J. Quantum Electron 28, 986–991 (1992).
    [CrossRef]
  14. W. Koechner, ed., Solid-State Laser Engineering, 3rd ed. (Springer-Verlag, Berlin, 1992).
  15. D. Peressini, “Investigation of higher-order loss mechanisms in cw Nd:YAG lasers,” in Advanced Solid-State Lasers, Vol. 13 of OSA Proceedings (Optical Society of America, Washington, D.C., 1992), pp. 326–329.
  16. A. Halvor, S. Landro, K. Stenersen, “Numerical simulations of Nd:YAG laser amplifiers,” Rep. FFI/RAPPORT-92/7028 (Norwegian Defence Research Establishment, Kjeller, Norway, 1992).
  17. W. M. Rohsenow, J. P. Hartnett, E. N. Ganic, Handbook of Heat Transfer Fundamentals, 2nd ed. (McGraw-Hill, New York, 1985).

1995 (1)

H. J. Eichler, A. Haase, R. Menzel, “100 watt average output power 1.2 diffraction limited beam from pulsed neodymium single-rod amplifier with SBS phase conjugation,” IEEE J. Quantum Electron. 31, 1265–1269 (1995).
[CrossRef]

1994 (1)

1993 (1)

1992 (3)

J. J. Kasinski, W. Hughes, D. DiBiase, P. Bournes, R. Burnham, “One joule output from a diode-array-pumped Nd: YAG laser with side-pumped rod geometry,” IEEE J. Quantum Electron. 28, 977–985 (1992).
[CrossRef]

L. E. Holder, C. Kennedy, L. Long, G. Dube, “One joule per Q-switched pulse diode-pumped laser,” IEEE J. Quantum Electron 28, 986–991 (1992).
[CrossRef]

N. F. Andreev, E. Khazanov, G. A. Pasmanik, “Applications of Brillouin cells to high repetition rate solid-state lasers,” IEEE J. Quantum Electron. 28, 330–341 (1992).
[CrossRef]

1988 (1)

D. A. Rockwell, “A review of phase-conjugate solid-state lasers,” IEEE J. Quantum Electron. 24, 1124–1140 (1988).
[CrossRef]

1963 (1)

L. M. Frantz, J. S. Nodvik, “Theory of pulse propagation in a laser amplifier,” J. Appl. Phys. 34, 2346–2349 (1963).
[CrossRef]

Andreev, N. F.

N. F. Andreev, E. Khazanov, G. A. Pasmanik, “Applications of Brillouin cells to high repetition rate solid-state lasers,” IEEE J. Quantum Electron. 28, 330–341 (1992).
[CrossRef]

Berg, J. G.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “One joule per pulse, 100 watt, diode-pumped, near diffraction limited, phase conjugated, Nd:YAG master oscillator power amplifier,” in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 2–8.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “High brightness diode-pumped solid-state laser development,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–276.

Bournes, P.

J. J. Kasinski, W. Hughes, D. DiBiase, P. Bournes, R. Burnham, “One joule output from a diode-array-pumped Nd: YAG laser with side-pumped rod geometry,” IEEE J. Quantum Electron. 28, 977–985 (1992).
[CrossRef]

Bowers, M. S.

Burnham, R.

J. J. Kasinski, W. Hughes, D. DiBiase, P. Bournes, R. Burnham, “One joule output from a diode-array-pumped Nd: YAG laser with side-pumped rod geometry,” IEEE J. Quantum Electron. 28, 977–985 (1992).
[CrossRef]

Chen, D.

Dane, C. B.

C. B. Dane, L. E. Zapata, L. A. Hackel, “Long pulse regenerative amplifier architecture with diffraction-limited output divergence,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–275.

DiBiase, D.

J. J. Kasinski, W. Hughes, D. DiBiase, P. Bournes, R. Burnham, “One joule output from a diode-array-pumped Nd: YAG laser with side-pumped rod geometry,” IEEE J. Quantum Electron. 28, 977–985 (1992).
[CrossRef]

Dube, G.

L. E. Holder, C. Kennedy, L. Long, G. Dube, “One joule per Q-switched pulse diode-pumped laser,” IEEE J. Quantum Electron 28, 986–991 (1992).
[CrossRef]

Eichler, H. J.

H. J. Eichler, A. Haase, R. Menzel, “100 watt average output power 1.2 diffraction limited beam from pulsed neodymium single-rod amplifier with SBS phase conjugation,” IEEE J. Quantum Electron. 31, 1265–1269 (1995).
[CrossRef]

Frantz, L. M.

L. M. Frantz, J. S. Nodvik, “Theory of pulse propagation in a laser amplifier,” J. Appl. Phys. 34, 2346–2349 (1963).
[CrossRef]

Ganic, E. N.

W. M. Rohsenow, J. P. Hartnett, E. N. Ganic, Handbook of Heat Transfer Fundamentals, 2nd ed. (McGraw-Hill, New York, 1985).

Haase, A.

H. J. Eichler, A. Haase, R. Menzel, “100 watt average output power 1.2 diffraction limited beam from pulsed neodymium single-rod amplifier with SBS phase conjugation,” IEEE J. Quantum Electron. 31, 1265–1269 (1995).
[CrossRef]

Hackel, L. A.

C. B. Dane, L. E. Zapata, L. A. Hackel, “Long pulse regenerative amplifier architecture with diffraction-limited output divergence,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–275.

Halvor, A.

A. Halvor, S. Landro, K. Stenersen, “Numerical simulations of Nd:YAG laser amplifiers,” Rep. FFI/RAPPORT-92/7028 (Norwegian Defence Research Establishment, Kjeller, Norway, 1992).

Hartnett, J. P.

W. M. Rohsenow, J. P. Hartnett, E. N. Ganic, Handbook of Heat Transfer Fundamentals, 2nd ed. (McGraw-Hill, New York, 1985).

Hilyard, R. C.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “High brightness diode-pumped solid-state laser development,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–276.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “One joule per pulse, 100 watt, diode-pumped, near diffraction limited, phase conjugated, Nd:YAG master oscillator power amplifier,” in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 2–8.

Hoefer, C. S.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “One joule per pulse, 100 watt, diode-pumped, near diffraction limited, phase conjugated, Nd:YAG master oscillator power amplifier,” in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 2–8.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “High brightness diode-pumped solid-state laser development,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–276.

Holder, L. E.

L. E. Holder, C. Kennedy, L. Long, G. Dube, “One joule per Q-switched pulse diode-pumped laser,” IEEE J. Quantum Electron 28, 986–991 (1992).
[CrossRef]

Hughes, W.

J. J. Kasinski, W. Hughes, D. DiBiase, P. Bournes, R. Burnham, “One joule output from a diode-array-pumped Nd: YAG laser with side-pumped rod geometry,” IEEE J. Quantum Electron. 28, 977–985 (1992).
[CrossRef]

Injeyan, H.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “High brightness diode-pumped solid-state laser development,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–276.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “One joule per pulse, 100 watt, diode-pumped, near diffraction limited, phase conjugated, Nd:YAG master oscillator power amplifier,” in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 2–8.

Kasinski, J. J.

J. J. Kasinski, W. Hughes, D. DiBiase, P. Bournes, R. Burnham, “One joule output from a diode-array-pumped Nd: YAG laser with side-pumped rod geometry,” IEEE J. Quantum Electron. 28, 977–985 (1992).
[CrossRef]

Kennedy, C.

L. E. Holder, C. Kennedy, L. Long, G. Dube, “One joule per Q-switched pulse diode-pumped laser,” IEEE J. Quantum Electron 28, 986–991 (1992).
[CrossRef]

Khazanov, E.

N. F. Andreev, E. Khazanov, G. A. Pasmanik, “Applications of Brillouin cells to high repetition rate solid-state lasers,” IEEE J. Quantum Electron. 28, 330–341 (1992).
[CrossRef]

Landro, S.

A. Halvor, S. Landro, K. Stenersen, “Numerical simulations of Nd:YAG laser amplifiers,” Rep. FFI/RAPPORT-92/7028 (Norwegian Defence Research Establishment, Kjeller, Norway, 1992).

Leger, J. R.

Long, L.

L. E. Holder, C. Kennedy, L. Long, G. Dube, “One joule per Q-switched pulse diode-pumped laser,” IEEE J. Quantum Electron 28, 986–991 (1992).
[CrossRef]

Lowenthal, D. D.

S. C. Tidwell, J. F. Seamans, D. D. Lowenthal, in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 150–153.

Machan, J. P.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “High brightness diode-pumped solid-state laser development,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–276.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “One joule per pulse, 100 watt, diode-pumped, near diffraction limited, phase conjugated, Nd:YAG master oscillator power amplifier,” in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 2–8.

Menzel, R.

H. J. Eichler, A. Haase, R. Menzel, “100 watt average output power 1.2 diffraction limited beam from pulsed neodymium single-rod amplifier with SBS phase conjugation,” IEEE J. Quantum Electron. 31, 1265–1269 (1995).
[CrossRef]

Nodvik, J. S.

L. M. Frantz, J. S. Nodvik, “Theory of pulse propagation in a laser amplifier,” J. Appl. Phys. 34, 2346–2349 (1963).
[CrossRef]

Pasmanik, G. A.

N. F. Andreev, E. Khazanov, G. A. Pasmanik, “Applications of Brillouin cells to high repetition rate solid-state lasers,” IEEE J. Quantum Electron. 28, 330–341 (1992).
[CrossRef]

Peressini, D.

D. Peressini, “Investigation of higher-order loss mechanisms in cw Nd:YAG lasers,” in Advanced Solid-State Lasers, Vol. 13 of OSA Proceedings (Optical Society of America, Washington, D.C., 1992), pp. 326–329.

Pierre, R. J. St.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “High brightness diode-pumped solid-state laser development,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–276.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “One joule per pulse, 100 watt, diode-pumped, near diffraction limited, phase conjugated, Nd:YAG master oscillator power amplifier,” in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 2–8.

Rockwell, D. A.

D. A. Rockwell, “A review of phase-conjugate solid-state lasers,” IEEE J. Quantum Electron. 24, 1124–1140 (1988).
[CrossRef]

Rohsenow, W. M.

W. M. Rohsenow, J. P. Hartnett, E. N. Ganic, Handbook of Heat Transfer Fundamentals, 2nd ed. (McGraw-Hill, New York, 1985).

Seamans, J. F.

S. C. Tidwell, J. F. Seamans, M. S. Bowers, “Highly efficient 60-W TEM00 cw diode-end-pumped Nd:YAG laser,” Opt. Lett. 18, 116–118 (1993).
[CrossRef] [PubMed]

S. C. Tidwell, J. F. Seamans, D. D. Lowenthal, in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 150–153.

Stenersen, K.

A. Halvor, S. Landro, K. Stenersen, “Numerical simulations of Nd:YAG laser amplifiers,” Rep. FFI/RAPPORT-92/7028 (Norwegian Defence Research Establishment, Kjeller, Norway, 1992).

Svelto, O.

O. Svelto, Principles of Lasers, 2nd ed. (Plenum, New York, 1982).

Tidwell, S. C.

S. C. Tidwell, J. F. Seamans, M. S. Bowers, “Highly efficient 60-W TEM00 cw diode-end-pumped Nd:YAG laser,” Opt. Lett. 18, 116–118 (1993).
[CrossRef] [PubMed]

S. C. Tidwell, J. F. Seamans, D. D. Lowenthal, in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 150–153.

Wang, Z.

Weber, M. E.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “High brightness diode-pumped solid-state laser development,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–276.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “One joule per pulse, 100 watt, diode-pumped, near diffraction limited, phase conjugated, Nd:YAG master oscillator power amplifier,” in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 2–8.

Wickham, M. G.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “One joule per pulse, 100 watt, diode-pumped, near diffraction limited, phase conjugated, Nd:YAG master oscillator power amplifier,” in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 2–8.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “High brightness diode-pumped solid-state laser development,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–276.

Zapata, L. E.

C. B. Dane, L. E. Zapata, L. A. Hackel, “Long pulse regenerative amplifier architecture with diffraction-limited output divergence,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–275.

IEEE J. Quantum Electron (1)

L. E. Holder, C. Kennedy, L. Long, G. Dube, “One joule per Q-switched pulse diode-pumped laser,” IEEE J. Quantum Electron 28, 986–991 (1992).
[CrossRef]

IEEE J. Quantum Electron. (4)

D. A. Rockwell, “A review of phase-conjugate solid-state lasers,” IEEE J. Quantum Electron. 24, 1124–1140 (1988).
[CrossRef]

N. F. Andreev, E. Khazanov, G. A. Pasmanik, “Applications of Brillouin cells to high repetition rate solid-state lasers,” IEEE J. Quantum Electron. 28, 330–341 (1992).
[CrossRef]

H. J. Eichler, A. Haase, R. Menzel, “100 watt average output power 1.2 diffraction limited beam from pulsed neodymium single-rod amplifier with SBS phase conjugation,” IEEE J. Quantum Electron. 31, 1265–1269 (1995).
[CrossRef]

J. J. Kasinski, W. Hughes, D. DiBiase, P. Bournes, R. Burnham, “One joule output from a diode-array-pumped Nd: YAG laser with side-pumped rod geometry,” IEEE J. Quantum Electron. 28, 977–985 (1992).
[CrossRef]

J. Appl. Phys. (1)

L. M. Frantz, J. S. Nodvik, “Theory of pulse propagation in a laser amplifier,” J. Appl. Phys. 34, 2346–2349 (1963).
[CrossRef]

Opt. Lett. (2)

Other (9)

W. Koechner, ed., Solid-State Laser Engineering, 3rd ed. (Springer-Verlag, Berlin, 1992).

D. Peressini, “Investigation of higher-order loss mechanisms in cw Nd:YAG lasers,” in Advanced Solid-State Lasers, Vol. 13 of OSA Proceedings (Optical Society of America, Washington, D.C., 1992), pp. 326–329.

A. Halvor, S. Landro, K. Stenersen, “Numerical simulations of Nd:YAG laser amplifiers,” Rep. FFI/RAPPORT-92/7028 (Norwegian Defence Research Establishment, Kjeller, Norway, 1992).

W. M. Rohsenow, J. P. Hartnett, E. N. Ganic, Handbook of Heat Transfer Fundamentals, 2nd ed. (McGraw-Hill, New York, 1985).

O. Svelto, Principles of Lasers, 2nd ed. (Plenum, New York, 1982).

S. C. Tidwell, J. F. Seamans, D. D. Lowenthal, in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 150–153.

C. B. Dane, L. E. Zapata, L. A. Hackel, “Long pulse regenerative amplifier architecture with diffraction-limited output divergence,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–275.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “One joule per pulse, 100 watt, diode-pumped, near diffraction limited, phase conjugated, Nd:YAG master oscillator power amplifier,” in Advanced Solid-State Lasers, Vol. 15 of OSA Proceedings (Optical Society of America, Washington, D.C., 1993), pp. 2–8.

R. J. St. Pierre, H. Injeyan, R. C. Hilyard, M. E. Weber, J. G. Berg, M. G. Wickham, C. S. Hoefer, J. P. Machan, “High brightness diode-pumped solid-state laser development,” in Conference on Lasers and Electro-Optics, Vol. 11 of 1993 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1993), pp. 274–276.

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Figures (8)

Fig. 1
Fig. 1

High power, diode-pumped Nd:YAG MOPA schematic. Mag., beam expander; phase corrector, CaF2 aspheric lens; SHG, KTP frequency doubler.

Fig. 2
Fig. 2

Imaged fluorescence profile of the amp head: (a) three-dimensional, (b) average two-dimensional slice. Diode-pumping arrangement is eightfold symmetric. Stored energy is peaked in the rod center.

Fig. 3
Fig. 3

Near-field profiles of output beams: (a) the 1.06-μm output at 29 cm from the amp exit; (b) the 532-nm output at 20 cm from the doubling crystal; one-dimensional slices are shown for clarity.

Fig. 4
Fig. 4

Interferograms of amplifier thermal aberration: (a) with an f = −200-cm lens, (b) with an f = −120-cm lens.

Fig. 5
Fig. 5

Profile of CaF2 thermal aberration corrector. The overall shape was planoconcave with a 12.7-mm diameter and a 3-mm nominal thickness; both faces were antireflection coated for 1.06 μm.

Fig. 6
Fig. 6

Far-field profile of 1.06-μm output. The beam is 1.3× diffraction limited.

Fig. 7
Fig. 7

Comparison of IR far field (intensities are normalized for clarity): (a) with corrector, (b) without corrector.

Fig. 8
Fig. 8

Far-field profile of 532-nm output. The beam is 2.4× diffraction limited, currently limited by thermal aberration in the KTP crystal.

Tables (3)

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Table 1 Calculated θd For Various Reference Beams

Tables Icon

Table 2 Measured 1.06-μm Beam Quality

Tables Icon

Table 3 Measured 532-nm Beam Quality

Equations (4)

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ϕ c ( r ) = - Φ a ( r ) ,
ϕ λ ( r ) = ( n - 1 ) Δ l ( r ) λ ,
× dl = ( θ d ) meas ( θ d ) 0 ,
× gdl = ( θ d ) meas ( θ d ) Gaus ,

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