Abstract

We describe a diode-pumped Nd:YAG laser that is suitable for micromachining applications and is capable of generating 2.3-mJ pulses at a 4-kHz pulse repetition frequency. The output pulse duration is 20.5 ps. The system is based on a Nd:YAG regenerative amplifier with a novel four-pass postamplifier. The postamplifier incorporates birefringent depolarization compensation and simultaneously prevents parasitic laser oscillation by use of a nonreciprocal beam path. These output pulse energies are achieved without the use of chirped pulse amplification.

© 2001 Optical Society of America

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References

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  1. D. Strickland, G. Mourou, “Compression of amplified chirped optical pulses,” Opt. Commun. 56, 219–221 (1985).
    [CrossRef]
  2. X. D. Wang, P. Basséras, R. J. D. Miller, J. Sweester, I. A. Walmsley, “Regenerative pulse amplification in the 10-kHz range,” Opt. Lett. 15, 839–841 (1990).
    [CrossRef] [PubMed]
  3. P. Bado, M. Bouvier, J. S. Coe, “Nd:YLF mode-locked oscillator and regenerative amplifier,” Opt. Lett. 12, 319–321 (1987).
    [CrossRef] [PubMed]
  4. R. J. D. Miller, L. Min, M. A. Shragowitz, “Efficient operation of a cavity dumped Q-switched and mode-locked YAG laser,” Opt. Commun. 62, 185–189 (1987).
    [CrossRef]
  5. D. R. Walker, C. J. Flood, H. M. van Driel, U. J. Greiner, H. H. Klingenberg, “High power diode-pumped Nd:YAG regenerative amplifier for picosecond pulses,” Appl. Phys. Lett. 65, 1992–1994 (1994).
    [CrossRef]
  6. U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönniger, N. Matuschek, J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAM’s) for femtosecond and nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2, 435–452 (1996).
    [CrossRef]
  7. J. D. Kemetec, “Solid-state laser with trapped pump light,” U.S. patent5,774,488 (30June1998).
  8. G. J. Spühler, R. Paschotta, U. Keller, M. Moser, M. J. P. Dymott, D. Kopf, J. Meyer, K. J. Weingarten, J. D. Kmetec, J. Alexander, G. Truong, “Diode-pumped passively mode-locked Nd:YAG laser with 10-W average power in a diffraction-limited beam,” Opt. Lett. 24, 528–530 (1999).
    [CrossRef]
  9. W. Koechner, Solid-State Laser Engineering, 4th ed. (Springer-Verlag, New York, 1996).
    [CrossRef]
  10. W. A. Clarkson, N. S. Felgate, D. C. Hanna, “Simple method for reducing the depolarization loss resulting from thermally induced birefringence in solid-state lasers,” Opt. Lett. 24, 820–822 (1999).
    [CrossRef]
  11. G. Giuliani, P. Ristori, “Polarization flip cavities: a new approach to laser resonators,” Opt. Commun. 35, 109–112 (1980).
    [CrossRef]
  12. N. F. Andreev, S. V. Kuznetsov, O. V. Palashov, G. A. Pasanik, E. A. Khazanov, “Four-pass YAG:Nd laser amplifier with compensation for aberration and polarization distortions of the wavefront,” Sov. J. Quantum Electron. 22, 800–802 (1992).
    [CrossRef]
  13. R. Fluck, M. R. Hermann, L. A. Hackel, “Birefringence compensation in single solid-state rods,” Appl. Phys. Lett. 76, 1513–1515 (2000).
    [CrossRef]
  14. H. K. Tönshoff, C. Momma, A. Ostendorf, S. Nolte, G. Kamlage, “Microdrilling of metals with ultrashort laser pulses,” J. Laser Appl. 12, 23–27 (2000).
    [CrossRef]

2000

R. Fluck, M. R. Hermann, L. A. Hackel, “Birefringence compensation in single solid-state rods,” Appl. Phys. Lett. 76, 1513–1515 (2000).
[CrossRef]

H. K. Tönshoff, C. Momma, A. Ostendorf, S. Nolte, G. Kamlage, “Microdrilling of metals with ultrashort laser pulses,” J. Laser Appl. 12, 23–27 (2000).
[CrossRef]

1999

1996

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönniger, N. Matuschek, J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAM’s) for femtosecond and nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2, 435–452 (1996).
[CrossRef]

1994

D. R. Walker, C. J. Flood, H. M. van Driel, U. J. Greiner, H. H. Klingenberg, “High power diode-pumped Nd:YAG regenerative amplifier for picosecond pulses,” Appl. Phys. Lett. 65, 1992–1994 (1994).
[CrossRef]

1992

N. F. Andreev, S. V. Kuznetsov, O. V. Palashov, G. A. Pasanik, E. A. Khazanov, “Four-pass YAG:Nd laser amplifier with compensation for aberration and polarization distortions of the wavefront,” Sov. J. Quantum Electron. 22, 800–802 (1992).
[CrossRef]

1990

1987

P. Bado, M. Bouvier, J. S. Coe, “Nd:YLF mode-locked oscillator and regenerative amplifier,” Opt. Lett. 12, 319–321 (1987).
[CrossRef] [PubMed]

R. J. D. Miller, L. Min, M. A. Shragowitz, “Efficient operation of a cavity dumped Q-switched and mode-locked YAG laser,” Opt. Commun. 62, 185–189 (1987).
[CrossRef]

1985

D. Strickland, G. Mourou, “Compression of amplified chirped optical pulses,” Opt. Commun. 56, 219–221 (1985).
[CrossRef]

1980

G. Giuliani, P. Ristori, “Polarization flip cavities: a new approach to laser resonators,” Opt. Commun. 35, 109–112 (1980).
[CrossRef]

Alexander, J.

Andreev, N. F.

N. F. Andreev, S. V. Kuznetsov, O. V. Palashov, G. A. Pasanik, E. A. Khazanov, “Four-pass YAG:Nd laser amplifier with compensation for aberration and polarization distortions of the wavefront,” Sov. J. Quantum Electron. 22, 800–802 (1992).
[CrossRef]

Aus der Au, J.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönniger, N. Matuschek, J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAM’s) for femtosecond and nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2, 435–452 (1996).
[CrossRef]

Bado, P.

Basséras, P.

Bouvier, M.

Braun, B.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönniger, N. Matuschek, J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAM’s) for femtosecond and nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2, 435–452 (1996).
[CrossRef]

Clarkson, W. A.

Coe, J. S.

Dymott, M. J. P.

Felgate, N. S.

Flood, C. J.

D. R. Walker, C. J. Flood, H. M. van Driel, U. J. Greiner, H. H. Klingenberg, “High power diode-pumped Nd:YAG regenerative amplifier for picosecond pulses,” Appl. Phys. Lett. 65, 1992–1994 (1994).
[CrossRef]

Fluck, R.

R. Fluck, M. R. Hermann, L. A. Hackel, “Birefringence compensation in single solid-state rods,” Appl. Phys. Lett. 76, 1513–1515 (2000).
[CrossRef]

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönniger, N. Matuschek, J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAM’s) for femtosecond and nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2, 435–452 (1996).
[CrossRef]

Giuliani, G.

G. Giuliani, P. Ristori, “Polarization flip cavities: a new approach to laser resonators,” Opt. Commun. 35, 109–112 (1980).
[CrossRef]

Greiner, U. J.

D. R. Walker, C. J. Flood, H. M. van Driel, U. J. Greiner, H. H. Klingenberg, “High power diode-pumped Nd:YAG regenerative amplifier for picosecond pulses,” Appl. Phys. Lett. 65, 1992–1994 (1994).
[CrossRef]

Hackel, L. A.

R. Fluck, M. R. Hermann, L. A. Hackel, “Birefringence compensation in single solid-state rods,” Appl. Phys. Lett. 76, 1513–1515 (2000).
[CrossRef]

Hanna, D. C.

Hermann, M. R.

R. Fluck, M. R. Hermann, L. A. Hackel, “Birefringence compensation in single solid-state rods,” Appl. Phys. Lett. 76, 1513–1515 (2000).
[CrossRef]

Hönniger, C.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönniger, N. Matuschek, J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAM’s) for femtosecond and nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2, 435–452 (1996).
[CrossRef]

Jung, I. D.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönniger, N. Matuschek, J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAM’s) for femtosecond and nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2, 435–452 (1996).
[CrossRef]

Kamlage, G.

H. K. Tönshoff, C. Momma, A. Ostendorf, S. Nolte, G. Kamlage, “Microdrilling of metals with ultrashort laser pulses,” J. Laser Appl. 12, 23–27 (2000).
[CrossRef]

Kärtner, F. X.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönniger, N. Matuschek, J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAM’s) for femtosecond and nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2, 435–452 (1996).
[CrossRef]

Keller, U.

G. J. Spühler, R. Paschotta, U. Keller, M. Moser, M. J. P. Dymott, D. Kopf, J. Meyer, K. J. Weingarten, J. D. Kmetec, J. Alexander, G. Truong, “Diode-pumped passively mode-locked Nd:YAG laser with 10-W average power in a diffraction-limited beam,” Opt. Lett. 24, 528–530 (1999).
[CrossRef]

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönniger, N. Matuschek, J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAM’s) for femtosecond and nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2, 435–452 (1996).
[CrossRef]

Kemetec, J. D.

J. D. Kemetec, “Solid-state laser with trapped pump light,” U.S. patent5,774,488 (30June1998).

Khazanov, E. A.

N. F. Andreev, S. V. Kuznetsov, O. V. Palashov, G. A. Pasanik, E. A. Khazanov, “Four-pass YAG:Nd laser amplifier with compensation for aberration and polarization distortions of the wavefront,” Sov. J. Quantum Electron. 22, 800–802 (1992).
[CrossRef]

Klingenberg, H. H.

D. R. Walker, C. J. Flood, H. M. van Driel, U. J. Greiner, H. H. Klingenberg, “High power diode-pumped Nd:YAG regenerative amplifier for picosecond pulses,” Appl. Phys. Lett. 65, 1992–1994 (1994).
[CrossRef]

Kmetec, J. D.

Koechner, W.

W. Koechner, Solid-State Laser Engineering, 4th ed. (Springer-Verlag, New York, 1996).
[CrossRef]

Kopf, D.

G. J. Spühler, R. Paschotta, U. Keller, M. Moser, M. J. P. Dymott, D. Kopf, J. Meyer, K. J. Weingarten, J. D. Kmetec, J. Alexander, G. Truong, “Diode-pumped passively mode-locked Nd:YAG laser with 10-W average power in a diffraction-limited beam,” Opt. Lett. 24, 528–530 (1999).
[CrossRef]

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönniger, N. Matuschek, J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAM’s) for femtosecond and nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2, 435–452 (1996).
[CrossRef]

Kuznetsov, S. V.

N. F. Andreev, S. V. Kuznetsov, O. V. Palashov, G. A. Pasanik, E. A. Khazanov, “Four-pass YAG:Nd laser amplifier with compensation for aberration and polarization distortions of the wavefront,” Sov. J. Quantum Electron. 22, 800–802 (1992).
[CrossRef]

Matuschek, N.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönniger, N. Matuschek, J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAM’s) for femtosecond and nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2, 435–452 (1996).
[CrossRef]

Meyer, J.

Miller, R. J. D.

X. D. Wang, P. Basséras, R. J. D. Miller, J. Sweester, I. A. Walmsley, “Regenerative pulse amplification in the 10-kHz range,” Opt. Lett. 15, 839–841 (1990).
[CrossRef] [PubMed]

R. J. D. Miller, L. Min, M. A. Shragowitz, “Efficient operation of a cavity dumped Q-switched and mode-locked YAG laser,” Opt. Commun. 62, 185–189 (1987).
[CrossRef]

Min, L.

R. J. D. Miller, L. Min, M. A. Shragowitz, “Efficient operation of a cavity dumped Q-switched and mode-locked YAG laser,” Opt. Commun. 62, 185–189 (1987).
[CrossRef]

Momma, C.

H. K. Tönshoff, C. Momma, A. Ostendorf, S. Nolte, G. Kamlage, “Microdrilling of metals with ultrashort laser pulses,” J. Laser Appl. 12, 23–27 (2000).
[CrossRef]

Moser, M.

Mourou, G.

D. Strickland, G. Mourou, “Compression of amplified chirped optical pulses,” Opt. Commun. 56, 219–221 (1985).
[CrossRef]

Nolte, S.

H. K. Tönshoff, C. Momma, A. Ostendorf, S. Nolte, G. Kamlage, “Microdrilling of metals with ultrashort laser pulses,” J. Laser Appl. 12, 23–27 (2000).
[CrossRef]

Ostendorf, A.

H. K. Tönshoff, C. Momma, A. Ostendorf, S. Nolte, G. Kamlage, “Microdrilling of metals with ultrashort laser pulses,” J. Laser Appl. 12, 23–27 (2000).
[CrossRef]

Palashov, O. V.

N. F. Andreev, S. V. Kuznetsov, O. V. Palashov, G. A. Pasanik, E. A. Khazanov, “Four-pass YAG:Nd laser amplifier with compensation for aberration and polarization distortions of the wavefront,” Sov. J. Quantum Electron. 22, 800–802 (1992).
[CrossRef]

Pasanik, G. A.

N. F. Andreev, S. V. Kuznetsov, O. V. Palashov, G. A. Pasanik, E. A. Khazanov, “Four-pass YAG:Nd laser amplifier with compensation for aberration and polarization distortions of the wavefront,” Sov. J. Quantum Electron. 22, 800–802 (1992).
[CrossRef]

Paschotta, R.

Ristori, P.

G. Giuliani, P. Ristori, “Polarization flip cavities: a new approach to laser resonators,” Opt. Commun. 35, 109–112 (1980).
[CrossRef]

Shragowitz, M. A.

R. J. D. Miller, L. Min, M. A. Shragowitz, “Efficient operation of a cavity dumped Q-switched and mode-locked YAG laser,” Opt. Commun. 62, 185–189 (1987).
[CrossRef]

Spühler, G. J.

Strickland, D.

D. Strickland, G. Mourou, “Compression of amplified chirped optical pulses,” Opt. Commun. 56, 219–221 (1985).
[CrossRef]

Sweester, J.

Tönshoff, H. K.

H. K. Tönshoff, C. Momma, A. Ostendorf, S. Nolte, G. Kamlage, “Microdrilling of metals with ultrashort laser pulses,” J. Laser Appl. 12, 23–27 (2000).
[CrossRef]

Truong, G.

van Driel, H. M.

D. R. Walker, C. J. Flood, H. M. van Driel, U. J. Greiner, H. H. Klingenberg, “High power diode-pumped Nd:YAG regenerative amplifier for picosecond pulses,” Appl. Phys. Lett. 65, 1992–1994 (1994).
[CrossRef]

Walker, D. R.

D. R. Walker, C. J. Flood, H. M. van Driel, U. J. Greiner, H. H. Klingenberg, “High power diode-pumped Nd:YAG regenerative amplifier for picosecond pulses,” Appl. Phys. Lett. 65, 1992–1994 (1994).
[CrossRef]

Walmsley, I. A.

Wang, X. D.

Weingarten, K. J.

G. J. Spühler, R. Paschotta, U. Keller, M. Moser, M. J. P. Dymott, D. Kopf, J. Meyer, K. J. Weingarten, J. D. Kmetec, J. Alexander, G. Truong, “Diode-pumped passively mode-locked Nd:YAG laser with 10-W average power in a diffraction-limited beam,” Opt. Lett. 24, 528–530 (1999).
[CrossRef]

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönniger, N. Matuschek, J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAM’s) for femtosecond and nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2, 435–452 (1996).
[CrossRef]

Appl. Phys. Lett.

D. R. Walker, C. J. Flood, H. M. van Driel, U. J. Greiner, H. H. Klingenberg, “High power diode-pumped Nd:YAG regenerative amplifier for picosecond pulses,” Appl. Phys. Lett. 65, 1992–1994 (1994).
[CrossRef]

R. Fluck, M. R. Hermann, L. A. Hackel, “Birefringence compensation in single solid-state rods,” Appl. Phys. Lett. 76, 1513–1515 (2000).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron.

U. Keller, K. J. Weingarten, F. X. Kärtner, D. Kopf, B. Braun, I. D. Jung, R. Fluck, C. Hönniger, N. Matuschek, J. Aus der Au, “Semiconductor saturable absorber mirrors (SESAM’s) for femtosecond and nanosecond pulse generation in solid-state lasers,” IEEE J. Sel. Top. Quantum Electron. 2, 435–452 (1996).
[CrossRef]

J. Laser Appl.

H. K. Tönshoff, C. Momma, A. Ostendorf, S. Nolte, G. Kamlage, “Microdrilling of metals with ultrashort laser pulses,” J. Laser Appl. 12, 23–27 (2000).
[CrossRef]

Opt. Commun.

G. Giuliani, P. Ristori, “Polarization flip cavities: a new approach to laser resonators,” Opt. Commun. 35, 109–112 (1980).
[CrossRef]

D. Strickland, G. Mourou, “Compression of amplified chirped optical pulses,” Opt. Commun. 56, 219–221 (1985).
[CrossRef]

R. J. D. Miller, L. Min, M. A. Shragowitz, “Efficient operation of a cavity dumped Q-switched and mode-locked YAG laser,” Opt. Commun. 62, 185–189 (1987).
[CrossRef]

Opt. Lett.

Sov. J. Quantum Electron.

N. F. Andreev, S. V. Kuznetsov, O. V. Palashov, G. A. Pasanik, E. A. Khazanov, “Four-pass YAG:Nd laser amplifier with compensation for aberration and polarization distortions of the wavefront,” Sov. J. Quantum Electron. 22, 800–802 (1992).
[CrossRef]

Other

J. D. Kemetec, “Solid-state laser with trapped pump light,” U.S. patent5,774,488 (30June1998).

W. Koechner, Solid-State Laser Engineering, 4th ed. (Springer-Verlag, New York, 1996).
[CrossRef]

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Figures (4)

Fig. 1
Fig. 1

Schematic of the laser system: MMO, mode-matching optics; OI, optical isolator; HWP, half-wave plate; TFP, thin-film polarizer; QWP, quarter-wave plate; FR, Faraday rotator; AM1, AM2, amplifier end mirrors 1 and 2.

Fig. 2
Fig. 2

Schematic of the beam path taken through the Nd:YAG rod in the postamplifier to prevent parasitic lasing. The beam is focused by the thermal lens in the Nd:YAG rod in the first pass. The path followed in the second pass is symmetric about a plane through the center of the Nd:YAG rod.

Fig. 3
Fig. 3

Background-free autocorrelation of the laser system output pulses.

Fig. 4
Fig. 4

Spectra of the postamplifier, regenerative amplifier, and seed laser outputs.

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