Abstract

We have controlled the amount of spatial hole burning in a diode end-pumped Nd:YAG laser to quantitatively analyze its role in active mode locking. We demonstrate inhomogeneous broadening of the lasing bandwidth to >60 GHz, accompanied by a pulse-width reduction from 40 to 15 ps and an ~30% increase in the time–bandwidth product. Both homogeneous and inhomogeneous broadening have been included in a successful calculation of the steady-state pulse width.

© 1995 Optical Society of America

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References

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  1. G. T. Maker, A. I. Ferguson, Opt. Lett. 14, 788 (1989).
    [Crossref] [PubMed]
  2. F. Krausz, T. Brabec, E. Wintner, A. J. Schmidt, Appl. Phys. Lett. 55, 2386 (1989).
    [Crossref]
  3. C. S. Adams, G. T. Maker, A. I. Ferguson, Opt. Commun. 76, 127 (1990).
    [Crossref]
  4. A. A. Godil, K. D. Li, D. M. Bloom, Opt. Lett. 16, 1243 (1991).
    [Crossref] [PubMed]
  5. P. A. Schultz, S. R. Henion, Opt. Lett. 16, 1502 (1991).
    [Crossref]
  6. B. Braun, K. J. Weingarten, U. Keller, in Conference on Lasers and Electro-Optics, Vol. 8 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), paper CThI3.
  7. C. L. Tang, H. Statz, G. DeMars, J. Appl. Phys. 34, 2289 (1963).
    [Crossref]
  8. C. J. Flood, G. Giuliani, H. M. van Driel, Opt. Lett. 15, 674 (1990).
  9. F. Krausz, T. Brabec, Opt. Lett. 18, 888 (1993).
    [Crossref] [PubMed]
  10. B. Zhou, T. J. Kane, G. J. Dixon, R. L. Byer, Opt. Lett. 10, 62 (1985).
    [Crossref] [PubMed]
  11. D. J. Kuizenga, A. E. Siegmann, IEEE J. Quantum Electron. QE-6, 694 (1970).
    [Crossref]
  12. H. A. Haus, Y. Silberberg, IEEE J. Quantum Electron. QE-22, 325 (1986).
    [Crossref]
  13. M. S. Stix, E. P. Ippen, IEEE J. Quantum Electron. QE-19, 520 (1983).
    [Crossref]

1993 (1)

1991 (2)

1990 (2)

C. S. Adams, G. T. Maker, A. I. Ferguson, Opt. Commun. 76, 127 (1990).
[Crossref]

C. J. Flood, G. Giuliani, H. M. van Driel, Opt. Lett. 15, 674 (1990).

1989 (2)

F. Krausz, T. Brabec, E. Wintner, A. J. Schmidt, Appl. Phys. Lett. 55, 2386 (1989).
[Crossref]

G. T. Maker, A. I. Ferguson, Opt. Lett. 14, 788 (1989).
[Crossref] [PubMed]

1986 (1)

H. A. Haus, Y. Silberberg, IEEE J. Quantum Electron. QE-22, 325 (1986).
[Crossref]

1985 (1)

1983 (1)

M. S. Stix, E. P. Ippen, IEEE J. Quantum Electron. QE-19, 520 (1983).
[Crossref]

1970 (1)

D. J. Kuizenga, A. E. Siegmann, IEEE J. Quantum Electron. QE-6, 694 (1970).
[Crossref]

1963 (1)

C. L. Tang, H. Statz, G. DeMars, J. Appl. Phys. 34, 2289 (1963).
[Crossref]

Adams, C. S.

C. S. Adams, G. T. Maker, A. I. Ferguson, Opt. Commun. 76, 127 (1990).
[Crossref]

Bloom, D. M.

Brabec, T.

F. Krausz, T. Brabec, Opt. Lett. 18, 888 (1993).
[Crossref] [PubMed]

F. Krausz, T. Brabec, E. Wintner, A. J. Schmidt, Appl. Phys. Lett. 55, 2386 (1989).
[Crossref]

Braun, B.

B. Braun, K. J. Weingarten, U. Keller, in Conference on Lasers and Electro-Optics, Vol. 8 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), paper CThI3.

Byer, R. L.

DeMars, G.

C. L. Tang, H. Statz, G. DeMars, J. Appl. Phys. 34, 2289 (1963).
[Crossref]

Dixon, G. J.

Ferguson, A. I.

C. S. Adams, G. T. Maker, A. I. Ferguson, Opt. Commun. 76, 127 (1990).
[Crossref]

G. T. Maker, A. I. Ferguson, Opt. Lett. 14, 788 (1989).
[Crossref] [PubMed]

Flood, C. J.

C. J. Flood, G. Giuliani, H. M. van Driel, Opt. Lett. 15, 674 (1990).

Giuliani, G.

C. J. Flood, G. Giuliani, H. M. van Driel, Opt. Lett. 15, 674 (1990).

Godil, A. A.

Haus, H. A.

H. A. Haus, Y. Silberberg, IEEE J. Quantum Electron. QE-22, 325 (1986).
[Crossref]

Henion, S. R.

Ippen, E. P.

M. S. Stix, E. P. Ippen, IEEE J. Quantum Electron. QE-19, 520 (1983).
[Crossref]

Kane, T. J.

Keller, U.

B. Braun, K. J. Weingarten, U. Keller, in Conference on Lasers and Electro-Optics, Vol. 8 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), paper CThI3.

Krausz, F.

F. Krausz, T. Brabec, Opt. Lett. 18, 888 (1993).
[Crossref] [PubMed]

F. Krausz, T. Brabec, E. Wintner, A. J. Schmidt, Appl. Phys. Lett. 55, 2386 (1989).
[Crossref]

Kuizenga, D. J.

D. J. Kuizenga, A. E. Siegmann, IEEE J. Quantum Electron. QE-6, 694 (1970).
[Crossref]

Li, K. D.

Maker, G. T.

C. S. Adams, G. T. Maker, A. I. Ferguson, Opt. Commun. 76, 127 (1990).
[Crossref]

G. T. Maker, A. I. Ferguson, Opt. Lett. 14, 788 (1989).
[Crossref] [PubMed]

Schmidt, A. J.

F. Krausz, T. Brabec, E. Wintner, A. J. Schmidt, Appl. Phys. Lett. 55, 2386 (1989).
[Crossref]

Schultz, P. A.

Siegmann, A. E.

D. J. Kuizenga, A. E. Siegmann, IEEE J. Quantum Electron. QE-6, 694 (1970).
[Crossref]

Silberberg, Y.

H. A. Haus, Y. Silberberg, IEEE J. Quantum Electron. QE-22, 325 (1986).
[Crossref]

Statz, H.

C. L. Tang, H. Statz, G. DeMars, J. Appl. Phys. 34, 2289 (1963).
[Crossref]

Stix, M. S.

M. S. Stix, E. P. Ippen, IEEE J. Quantum Electron. QE-19, 520 (1983).
[Crossref]

Tang, C. L.

C. L. Tang, H. Statz, G. DeMars, J. Appl. Phys. 34, 2289 (1963).
[Crossref]

van Driel, H. M.

C. J. Flood, G. Giuliani, H. M. van Driel, Opt. Lett. 15, 674 (1990).

Weingarten, K. J.

B. Braun, K. J. Weingarten, U. Keller, in Conference on Lasers and Electro-Optics, Vol. 8 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), paper CThI3.

Wintner, E.

F. Krausz, T. Brabec, E. Wintner, A. J. Schmidt, Appl. Phys. Lett. 55, 2386 (1989).
[Crossref]

Zhou, B.

Appl. Phys. Lett. (1)

F. Krausz, T. Brabec, E. Wintner, A. J. Schmidt, Appl. Phys. Lett. 55, 2386 (1989).
[Crossref]

IEEE J. Quantum Electron. (3)

D. J. Kuizenga, A. E. Siegmann, IEEE J. Quantum Electron. QE-6, 694 (1970).
[Crossref]

H. A. Haus, Y. Silberberg, IEEE J. Quantum Electron. QE-22, 325 (1986).
[Crossref]

M. S. Stix, E. P. Ippen, IEEE J. Quantum Electron. QE-19, 520 (1983).
[Crossref]

J. Appl. Phys. (1)

C. L. Tang, H. Statz, G. DeMars, J. Appl. Phys. 34, 2289 (1963).
[Crossref]

Opt. Commun. (1)

C. S. Adams, G. T. Maker, A. I. Ferguson, Opt. Commun. 76, 127 (1990).
[Crossref]

Opt. Lett. (6)

Other (1)

B. Braun, K. J. Weingarten, U. Keller, in Conference on Lasers and Electro-Optics, Vol. 8 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), paper CThI3.

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Figures (4)

Fig. 1
Fig. 1

Schematic of the FM mode-locked Nd:YAG laser showing a dichroic end mirror (DE), a wedged gain medium (Nd:YAG), a phase modulator (PM), and an output coupler (OC).

Fig. 2
Fig. 2

Typical spectra of the free-running and mode-locked laser with a rod/mirror separation of 0.5 mm, normalized to the same integrated power.

Fig. 3
Fig. 3

Free-running bandwidth as a function of the rod/mirror separation. To account for the complex spectral shapes, the plotted values are the full width at half-maximum of a Gaussian function with the same full width at half-energy as the measured spectrum.

Fig. 4
Fig. 4

Mode-locked bandwidth and pulse width as a function of the rod/mirror separation. The measured pulse widths are deconvolved from the autocorrelation, assuming a Gaussian pulse shape.

Equations (3)

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g ( ω ) = g 0 ( ω ) { 1 - ( 1 - a a 2 - β 2 ) [ 1 - a β ψ ( ω ) ] } ,
τ K - S 0.54 ( g Δ m ) 1 / 4 ( 1 ν m Δ ν g ) 1 / 2 ,
δ A = { [ g ( t ) - l ( t ) ] + g 4 π 2 Δ ν g 2 2 t 2 } A ,

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