Abstract

We report the generation of Q-switched mode-locked pulses from a Nd-doped fiber laser that uses a solid-state solution of BDN-I dye as the saturable absorber and is pumped by a GaAlAs laser diode. For an absorbed pump power of 110 mW, pulses of 8-nsec duration at a repetition rate of 14 MHz can be generated under an 800-nsec-wide Q-switched envelope at a repetition rate of 10 kHz, yielding an average output power of 8 mW near 1.06 μm. This corresponds to approximately 9 W of peak power in the main mode-locked pulse.

© 1990 Optical Society of America

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References

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  1. H. Po, E. Snitzer, R. Tumminelli, L. A. Zenteno, F. Hakimi, N. M. Cho, in Digest of Optical Fiber Conference (Optical Society of America, Washington, D.C., 1989), paper PD7.
  2. K. H. Drexhage, G. A. Reynolds, Opt. Commun. 10, 18 (1974).
    [Crossref]
  3. R. C. Greenhow, D. M. Goodall, R. W. Eason, Chem. Phys. 83, 445 (1984).
    [Crossref]
  4. A. Penzkofer, Appl. Phys. B 46, 43 (1988).
    [Crossref]
  5. G. H. C. New, Proc. IEEE 67, 380 (1979).
    [Crossref]
  6. V. V. Korobkin, A. A. Malyutin, A. M. Prokhorov, JETP Lett. 12, 150 (1970).
  7. E. G. Lariontsev, V. N. Serkin, Sov. J. Quantum Electron. 4, 1204 (1975).
    [Crossref]
  8. A. E. Siegman, Proc. IEEE 53, 277 (1965).
    [Crossref]
  9. G. H. C. New, Rep. Prog. Phys. 46, 877 (1983).
    [Crossref]

1988 (1)

A. Penzkofer, Appl. Phys. B 46, 43 (1988).
[Crossref]

1984 (1)

R. C. Greenhow, D. M. Goodall, R. W. Eason, Chem. Phys. 83, 445 (1984).
[Crossref]

1983 (1)

G. H. C. New, Rep. Prog. Phys. 46, 877 (1983).
[Crossref]

1979 (1)

G. H. C. New, Proc. IEEE 67, 380 (1979).
[Crossref]

1975 (1)

E. G. Lariontsev, V. N. Serkin, Sov. J. Quantum Electron. 4, 1204 (1975).
[Crossref]

1974 (1)

K. H. Drexhage, G. A. Reynolds, Opt. Commun. 10, 18 (1974).
[Crossref]

1970 (1)

V. V. Korobkin, A. A. Malyutin, A. M. Prokhorov, JETP Lett. 12, 150 (1970).

1965 (1)

A. E. Siegman, Proc. IEEE 53, 277 (1965).
[Crossref]

Cho, N. M.

H. Po, E. Snitzer, R. Tumminelli, L. A. Zenteno, F. Hakimi, N. M. Cho, in Digest of Optical Fiber Conference (Optical Society of America, Washington, D.C., 1989), paper PD7.

Drexhage, K. H.

K. H. Drexhage, G. A. Reynolds, Opt. Commun. 10, 18 (1974).
[Crossref]

Eason, R. W.

R. C. Greenhow, D. M. Goodall, R. W. Eason, Chem. Phys. 83, 445 (1984).
[Crossref]

Goodall, D. M.

R. C. Greenhow, D. M. Goodall, R. W. Eason, Chem. Phys. 83, 445 (1984).
[Crossref]

Greenhow, R. C.

R. C. Greenhow, D. M. Goodall, R. W. Eason, Chem. Phys. 83, 445 (1984).
[Crossref]

Hakimi, F.

H. Po, E. Snitzer, R. Tumminelli, L. A. Zenteno, F. Hakimi, N. M. Cho, in Digest of Optical Fiber Conference (Optical Society of America, Washington, D.C., 1989), paper PD7.

Korobkin, V. V.

V. V. Korobkin, A. A. Malyutin, A. M. Prokhorov, JETP Lett. 12, 150 (1970).

Lariontsev, E. G.

E. G. Lariontsev, V. N. Serkin, Sov. J. Quantum Electron. 4, 1204 (1975).
[Crossref]

Malyutin, A. A.

V. V. Korobkin, A. A. Malyutin, A. M. Prokhorov, JETP Lett. 12, 150 (1970).

New, G. H. C.

G. H. C. New, Rep. Prog. Phys. 46, 877 (1983).
[Crossref]

G. H. C. New, Proc. IEEE 67, 380 (1979).
[Crossref]

Penzkofer, A.

A. Penzkofer, Appl. Phys. B 46, 43 (1988).
[Crossref]

Po, H.

H. Po, E. Snitzer, R. Tumminelli, L. A. Zenteno, F. Hakimi, N. M. Cho, in Digest of Optical Fiber Conference (Optical Society of America, Washington, D.C., 1989), paper PD7.

Prokhorov, A. M.

V. V. Korobkin, A. A. Malyutin, A. M. Prokhorov, JETP Lett. 12, 150 (1970).

Reynolds, G. A.

K. H. Drexhage, G. A. Reynolds, Opt. Commun. 10, 18 (1974).
[Crossref]

Serkin, V. N.

E. G. Lariontsev, V. N. Serkin, Sov. J. Quantum Electron. 4, 1204 (1975).
[Crossref]

Siegman, A. E.

A. E. Siegman, Proc. IEEE 53, 277 (1965).
[Crossref]

Snitzer, E.

H. Po, E. Snitzer, R. Tumminelli, L. A. Zenteno, F. Hakimi, N. M. Cho, in Digest of Optical Fiber Conference (Optical Society of America, Washington, D.C., 1989), paper PD7.

Tumminelli, R.

H. Po, E. Snitzer, R. Tumminelli, L. A. Zenteno, F. Hakimi, N. M. Cho, in Digest of Optical Fiber Conference (Optical Society of America, Washington, D.C., 1989), paper PD7.

Zenteno, L. A.

H. Po, E. Snitzer, R. Tumminelli, L. A. Zenteno, F. Hakimi, N. M. Cho, in Digest of Optical Fiber Conference (Optical Society of America, Washington, D.C., 1989), paper PD7.

Appl. Phys. B (1)

A. Penzkofer, Appl. Phys. B 46, 43 (1988).
[Crossref]

Chem. Phys. (1)

R. C. Greenhow, D. M. Goodall, R. W. Eason, Chem. Phys. 83, 445 (1984).
[Crossref]

JETP Lett. (1)

V. V. Korobkin, A. A. Malyutin, A. M. Prokhorov, JETP Lett. 12, 150 (1970).

Opt. Commun. (1)

K. H. Drexhage, G. A. Reynolds, Opt. Commun. 10, 18 (1974).
[Crossref]

Proc. IEEE (2)

G. H. C. New, Proc. IEEE 67, 380 (1979).
[Crossref]

A. E. Siegman, Proc. IEEE 53, 277 (1965).
[Crossref]

Rep. Prog. Phys. (1)

G. H. C. New, Rep. Prog. Phys. 46, 877 (1983).
[Crossref]

Sov. J. Quantum Electron. (1)

E. G. Lariontsev, V. N. Serkin, Sov. J. Quantum Electron. 4, 1204 (1975).
[Crossref]

Other (1)

H. Po, E. Snitzer, R. Tumminelli, L. A. Zenteno, F. Hakimi, N. M. Cho, in Digest of Optical Fiber Conference (Optical Society of America, Washington, D.C., 1989), paper PD7.

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Figures (5)

Fig. 1
Fig. 1

Schematic diagram of compact unstable fiber laser resonator with a saturable absorber; the fiber core N.A. = 0.16. The geometry for the calculation of the effective reflectivity of the fiber core-Q-switch sheet–output reflector R2 interfaces including diffraction losses is shown in detail.

Fig. 2
Fig. 2

(a) Sequence of mode-locked pulses under a Q-switched envelope; (b) enlarged trace of the main mode-locked pulse with a pulse width of 8 nsec.

Fig. 3
Fig. 3

Radio-frequency spectrum of a pulse train showing that only a few modes are locked by the saturable absorber.

Fig. 4
Fig. 4

Radio-frequency spectrum on a fine scale showing frequency components of the periodic Q-switched envelope.

Fig. 5
Fig. 5

Optical spectrum of a Q-switched mode-locked train integrated over many pulses.

Equations (3)

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P P = E ML t Q E Q E ML ,
R eff = R Q + R exp [ 2 α l / ( 1 + P / P s ) ] ,
ρ = R max R min R max + R min ,

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