Abstract

Passively Q-switched 1.064-μm microchip lasers have been constructed from thin pieces of Nd3+:YAG bonded to thin pieces of Cr4+:YAG. When pumped with the unfocused 1.2-W output of a fiber-coupled diode, these devices produced 11-μJ pulses of 337-ps duration at a pulse repetition rate of 6 kHz in a single-frequency TEM00 mode. The peak power of the lasers was in excess of 28 kW, with unfocused peak output intensities exceeding 180 MW/cm2.

© 1994 Optical Society of America

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References

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  1. J. J. Zayhowski, P. L. Kelley, IEEE J. Quantum Electron. 27, 2220 (1991);J. J. Zayhowski, P. L. Kelley, IEEE J. Quantum Electron. 29, 1239 (1993).
    [Crossref]
  2. J. J. Zayhowski, C. Dill, Opt. Lett. 17, 1201 (1992).
    [Crossref] [PubMed]
  3. S. Zhou, K. K. Lee, Y. C. Chen, S. Li, Opt. Lett. 18, 511 (1993).
    [Crossref] [PubMed]
  4. A. Szabo, R. A. Stein, J. Appl. Phys. 36, 1562 (1965).
    [Crossref]
  5. D. M. Andrauskas, C. Kennedy, in Advanced Solid-State Lasers, G. Dubé, L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), p. 393.

1993 (1)

1992 (1)

1991 (1)

J. J. Zayhowski, P. L. Kelley, IEEE J. Quantum Electron. 27, 2220 (1991);J. J. Zayhowski, P. L. Kelley, IEEE J. Quantum Electron. 29, 1239 (1993).
[Crossref]

1965 (1)

A. Szabo, R. A. Stein, J. Appl. Phys. 36, 1562 (1965).
[Crossref]

Andrauskas, D. M.

D. M. Andrauskas, C. Kennedy, in Advanced Solid-State Lasers, G. Dubé, L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), p. 393.

Chen, Y. C.

Dill, C.

Kelley, P. L.

J. J. Zayhowski, P. L. Kelley, IEEE J. Quantum Electron. 27, 2220 (1991);J. J. Zayhowski, P. L. Kelley, IEEE J. Quantum Electron. 29, 1239 (1993).
[Crossref]

Kennedy, C.

D. M. Andrauskas, C. Kennedy, in Advanced Solid-State Lasers, G. Dubé, L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), p. 393.

Lee, K. K.

Li, S.

Stein, R. A.

A. Szabo, R. A. Stein, J. Appl. Phys. 36, 1562 (1965).
[Crossref]

Szabo, A.

A. Szabo, R. A. Stein, J. Appl. Phys. 36, 1562 (1965).
[Crossref]

Zayhowski, J. J.

J. J. Zayhowski, C. Dill, Opt. Lett. 17, 1201 (1992).
[Crossref] [PubMed]

J. J. Zayhowski, P. L. Kelley, IEEE J. Quantum Electron. 27, 2220 (1991);J. J. Zayhowski, P. L. Kelley, IEEE J. Quantum Electron. 29, 1239 (1993).
[Crossref]

Zhou, S.

IEEE J. Quantum Electron. (1)

J. J. Zayhowski, P. L. Kelley, IEEE J. Quantum Electron. 27, 2220 (1991);J. J. Zayhowski, P. L. Kelley, IEEE J. Quantum Electron. 29, 1239 (1993).
[Crossref]

J. Appl. Phys. (1)

A. Szabo, R. A. Stein, J. Appl. Phys. 36, 1562 (1965).
[Crossref]

Opt. Lett. (2)

Other (1)

D. M. Andrauskas, C. Kennedy, in Advanced Solid-State Lasers, G. Dubé, L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), p. 393.

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Figures (3)

Fig. 1.
Fig. 1.

Illustration of a passively Q-switched microchip laser.

Fig. 2.
Fig. 2.

Oscilloscope trace of a 337-ps pulse from a passively Q-switched 1.064-μm microchip laser. The vertical dashed lines mark the half-maxima. Horizontal scale, 200 ps/division.

Fig. 3.
Fig. 3.

Oscilloscope trace of (a) a 363-ps, 1.064-μm pulse from a passively Q-switched microchip laser, (b) a 532-nm pulse obtained from the IR pulse shown in the top trace when a 5-mm-long KTP crystal was positioned 1 mm from the output face of the laser, (c) a 188-ps, 532-nm pulse obtained through inefficient second-harmonic conversion of the pulse shown in the top trace. Horizontal scale, 200 ps/division.

Equations (3)

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N 0 = γ sat , rt + γ par , rt + γ op σ l rt ,
t w = S p t r t γ sat , rt [ δ ( 1 + δ ) η δ ln ( 1 + δ ) ] ,
t p = τ P abs , thresh P abs ,

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