Abstract

We demonstrate that intracavity filtering and soliton formation in actively mode-locked lasers can lead to pulse shortening by as much as a factor of 30. Pulses as short as 310 fs have been generated from a Nd:glass laser that is mode locked only by an acousto-optic modulator.

© 1994 Optical Society of America

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References

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  1. L. Yan, J. D. Ling, P.-T. Ho, C. H. Lee, Opt. Lett. 11, 502 (1986).
    [CrossRef] [PubMed]
  2. S. Basu, R. L. Byer, Opt. Lett. 13, 458 (1988).
    [CrossRef] [PubMed]
  3. D. W. Hughes, M. W. Phillips, J. R. M. Barr, D. C. Hanna, IEEE J. Quantum Electron. 28, 1010 (1992).
    [CrossRef]
  4. U. Keller, T. H. Chiu, J. F. Ferguson, Opt. Lett. 18, 1077 (1993).
    [CrossRef] [PubMed]
  5. F. X. Kärtner, D. Kopf, U. Keller, in Ultrafast Phenomena, Vol. 7 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), paper MA5.
  6. J. D. Kafka, M. L. Watts, J.-W. J. Pieterse, IEEE J. Quantum Electron. 28, 2151 (1992).
    [CrossRef]
  7. D. J. Kuizenga, A. E. Siegman, IEEE J. Quantum Electron. QE-6, 694 (1970).
    [CrossRef]
  8. H. A. Haus, Y. Silberberg, IEEE J. Quantum Electron. QE-22, 325 (1986).
    [CrossRef]
  9. F. X. Kartner, D. Kopf, U. Keller, “Solitary pulse stabilization and shortening in actively mode-locked lasers,”J. Opt. Soc. Am. B (to be published).
  10. H. A. Haus, A. Mecozzi, Opt. Lett. 17, 1500 (1992).
    [CrossRef] [PubMed]
  11. H. A. Haus, IEEE J. Quantum Electron. 11, 323 (1975).
    [CrossRef]
  12. F. X. Kärtner, U. Keller, “Stabilization of solitonlike pulses with a slow saturable absorber,”Opt. Lett. (to be published).

1993 (1)

1992 (3)

H. A. Haus, A. Mecozzi, Opt. Lett. 17, 1500 (1992).
[CrossRef] [PubMed]

D. W. Hughes, M. W. Phillips, J. R. M. Barr, D. C. Hanna, IEEE J. Quantum Electron. 28, 1010 (1992).
[CrossRef]

J. D. Kafka, M. L. Watts, J.-W. J. Pieterse, IEEE J. Quantum Electron. 28, 2151 (1992).
[CrossRef]

1988 (1)

1986 (2)

L. Yan, J. D. Ling, P.-T. Ho, C. H. Lee, Opt. Lett. 11, 502 (1986).
[CrossRef] [PubMed]

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

1975 (1)

H. A. Haus, IEEE J. Quantum Electron. 11, 323 (1975).
[CrossRef]

1970 (1)

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

Barr, J. R. M.

D. W. Hughes, M. W. Phillips, J. R. M. Barr, D. C. Hanna, IEEE J. Quantum Electron. 28, 1010 (1992).
[CrossRef]

Basu, S.

Byer, R. L.

Chiu, T. H.

Ferguson, J. F.

Hanna, D. C.

D. W. Hughes, M. W. Phillips, J. R. M. Barr, D. C. Hanna, IEEE J. Quantum Electron. 28, 1010 (1992).
[CrossRef]

Haus, H. A.

H. A. Haus, A. Mecozzi, Opt. Lett. 17, 1500 (1992).
[CrossRef] [PubMed]

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

H. A. Haus, IEEE J. Quantum Electron. 11, 323 (1975).
[CrossRef]

Ho, P.-T.

Hughes, D. W.

D. W. Hughes, M. W. Phillips, J. R. M. Barr, D. C. Hanna, IEEE J. Quantum Electron. 28, 1010 (1992).
[CrossRef]

Kafka, J. D.

J. D. Kafka, M. L. Watts, J.-W. J. Pieterse, IEEE J. Quantum Electron. 28, 2151 (1992).
[CrossRef]

Kartner, F. X.

F. X. Kartner, D. Kopf, U. Keller, “Solitary pulse stabilization and shortening in actively mode-locked lasers,”J. Opt. Soc. Am. B (to be published).

Kärtner, F. X.

F. X. Kärtner, U. Keller, “Stabilization of solitonlike pulses with a slow saturable absorber,”Opt. Lett. (to be published).

F. X. Kärtner, D. Kopf, U. Keller, in Ultrafast Phenomena, Vol. 7 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), paper MA5.

Keller, U.

U. Keller, T. H. Chiu, J. F. Ferguson, Opt. Lett. 18, 1077 (1993).
[CrossRef] [PubMed]

F. X. Kärtner, U. Keller, “Stabilization of solitonlike pulses with a slow saturable absorber,”Opt. Lett. (to be published).

F. X. Kartner, D. Kopf, U. Keller, “Solitary pulse stabilization and shortening in actively mode-locked lasers,”J. Opt. Soc. Am. B (to be published).

F. X. Kärtner, D. Kopf, U. Keller, in Ultrafast Phenomena, Vol. 7 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), paper MA5.

Kopf, D.

F. X. Kartner, D. Kopf, U. Keller, “Solitary pulse stabilization and shortening in actively mode-locked lasers,”J. Opt. Soc. Am. B (to be published).

F. X. Kärtner, D. Kopf, U. Keller, in Ultrafast Phenomena, Vol. 7 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), paper MA5.

Kuizenga, D. J.

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

Lee, C. H.

Ling, J. D.

Mecozzi, A.

Phillips, M. W.

D. W. Hughes, M. W. Phillips, J. R. M. Barr, D. C. Hanna, IEEE J. Quantum Electron. 28, 1010 (1992).
[CrossRef]

Pieterse, J.-W. J.

J. D. Kafka, M. L. Watts, J.-W. J. Pieterse, IEEE J. Quantum Electron. 28, 2151 (1992).
[CrossRef]

Siegman, A. E.

D. J. Kuizenga, A. E. Siegman, 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]

Watts, M. L.

J. D. Kafka, M. L. Watts, J.-W. J. Pieterse, IEEE J. Quantum Electron. 28, 2151 (1992).
[CrossRef]

Yan, L.

IEEE J. Quantum Electron. (5)

J. D. Kafka, M. L. Watts, J.-W. J. Pieterse, IEEE J. Quantum Electron. 28, 2151 (1992).
[CrossRef]

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

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

D. W. Hughes, M. W. Phillips, J. R. M. Barr, D. C. Hanna, IEEE J. Quantum Electron. 28, 1010 (1992).
[CrossRef]

H. A. Haus, IEEE J. Quantum Electron. 11, 323 (1975).
[CrossRef]

Opt. Lett. (4)

Other (3)

F. X. Kärtner, U. Keller, “Stabilization of solitonlike pulses with a slow saturable absorber,”Opt. Lett. (to be published).

F. X. Kärtner, D. Kopf, U. Keller, in Ultrafast Phenomena, Vol. 7 of 1994 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1994), paper MA5.

F. X. Kartner, D. Kopf, U. Keller, “Solitary pulse stabilization and shortening in actively mode-locked lasers,”J. Opt. Soc. Am. B (to be published).

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Figures (4)

Fig. 1
Fig. 1

Cavity design, a standard dispersion-compensated delta cavity with a mode radius of 35 μm × 55 μm inside the gain medium. PD, photodiode.

Fig. 2
Fig. 2

Gain reshaping by insertion of a knife-edge into the laser beam between the two prisms (Fig. 1).

Fig. 3
Fig. 3

Noncollinear measured autocorrelation trace fitted to an ideal sech2 pulse. The time–bandwidth product is 0.32. Absorbed power 930 mW, output power 70 mW at 1% output coupling. Total cavity losses are 2%.

Fig. 4
Fig. 4

Linear dependence of pulse width on intracavity negative GVD as expected for a soliton.

Equations (8)

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τ a = D g / M s , 4 τ a , FWHM = 2 ln 2 × τ a ,
T R T A ( T , t ) = [ iD 2 t 2 + i δ | A ( T , t ) | 2 ] A ( T , t ) + [ g l + D g 2 t 2 q ( t ) ] A ( T , t ) ,
g l = D g / ( 3 τ 2 ) + M s τ 2 π 2 / 12 .
g I l = 2 D g a 2 b D ,
Γ = 1 2 τ a 2 1 + iD n ,
g < g I .
D n , min = 2 9 × ( 9 ϕ 0 / 2 ) 2 M s D g 3 .
R = 1 . 66 1 . 76 D g M s 4 / D ϕ 0 1 . 66 1 . 76 ( 9 ϕ 0 / 2 ) 2 D g M s 12 .

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