Abstract

Numerical simulations that take into account propagation, self-focusing, and gain saturation in solid-state lasers reveal that self-mode locking can take place in such lasers even in the absence of apertures. The combination of self-focusing and gain saturation produces a differential gain that favors the growth of short pulses and eliminates cw oscillations. Nonsymmetrical cavities can provide a substantial differential gain when they are operated near a stability limit.

© 1993 Optical Society of America

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References

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1993

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1991

1972

H. W. Kogelnik, E. P. Ippen, A. Dienes, C. V. Shank, IEEE J. Quantum Electron. QE-8, 373 (1972).
[CrossRef]

’tHooft, G. W.

Baer, T.

J. D. Kafka, M. L. Watts, T. Baer, in Conference on Lasers and Electro-Optics, Vol. 10 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), paper JMB3.

Barty, C. P. J.

Brabec, T.

Chai, B. H. T.

Chen, S.

Chilla, J. L. A.

Couillaud, B.

L. Spinelli, B. Couillaud, N. Goldblatt, D. K. Negus, in Conference on Lasers and Electro-Optics, Vol. 10 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), paper CPDP7.

Cunningham, J. E.

Curley, P. F.

Dienes, A.

H. W. Kogelnik, E. P. Ippen, A. Dienes, C. V. Shank, IEEE J. Quantum Electron. QE-8, 373 (1972).
[CrossRef]

Ferguson, A. I.

Fujimoto, J. G.

Gabetta, G.

Goldblatt, N.

L. Spinelli, B. Couillaud, N. Goldblatt, D. K. Negus, in Conference on Lasers and Electro-Optics, Vol. 10 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), paper CPDP7.

Haus, H. A.

H. A. Haus, J. G. Fujimoto, E. P. Ippen, IEEE J. Quantum Electron. 28, 2086 (1992).
[CrossRef]

Huang, C. P.

Huang, D.

Ippen, E. P.

H. A. Haus, J. G. Fujimoto, E. P. Ippen, IEEE J. Quantum Electron. 28, 2086 (1992).
[CrossRef]

G. Gabetta, D. Huang, J. Jacobson, M. Ramaswamy, E. P. Ippen, J. G. Fujimoto, Opt. Lett. 16, 1756 (1991).
[CrossRef] [PubMed]

H. W. Kogelnik, E. P. Ippen, A. Dienes, C. V. Shank, IEEE J. Quantum Electron. QE-8, 373 (1972).
[CrossRef]

Jacobson, J.

Kafka, J. D.

J. D. Kafka, M. L. Watts, T. Baer, in Conference on Lasers and Electro-Optics, Vol. 10 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), paper JMB3.

Kapteyn, H. C.

Kean, P. N.

Keller, U.

Knox, W. H.

Kogelnik, H. W.

H. W. Kogelnik, E. P. Ippen, A. Dienes, C. V. Shank, IEEE J. Quantum Electron. QE-8, 373 (1972).
[CrossRef]

Krausz, F.

Lemoff, B. E.

LiKamWa, P.

Malcolm, G. P. A.

Martinez, O. E.

McIntosh, J. W.

Miller, A.

Murnane, M. M.

Negus, D. K.

L. Spinelli, B. Couillaud, N. Goldblatt, D. K. Negus, in Conference on Lasers and Electro-Optics, Vol. 10 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), paper CPDP7.

Piché, M.

Ramaswamy, M.

Salin, F.

Schmidt, A. J.

Shank, C. V.

H. W. Kogelnik, E. P. Ippen, A. Dienes, C. V. Shank, IEEE J. Quantum Electron. QE-8, 373 (1972).
[CrossRef]

Sibbett, W.

Siegman, A. E.

A. E. Siegman, Lasers (University Science, Mill Valley, Calif., 1986), Chaps. 16 and 19.

Spence, D. E.

Spielmann, Ch.

Spinelli, L.

L. Spinelli, B. Couillaud, N. Goldblatt, D. K. Negus, in Conference on Lasers and Electro-Optics, Vol. 10 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), paper CPDP7.

Squier, J.

Van Stryland, E. W.

Wang, J.

Watts, M. L.

J. D. Kafka, M. L. Watts, T. Baer, in Conference on Lasers and Electro-Optics, Vol. 10 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), paper JMB3.

Wintner, E.

IEEE J. Quantum Electron.

H. W. Kogelnik, E. P. Ippen, A. Dienes, C. V. Shank, IEEE J. Quantum Electron. QE-8, 373 (1972).
[CrossRef]

H. A. Haus, J. G. Fujimoto, E. P. Ippen, IEEE J. Quantum Electron. 28, 2086 (1992).
[CrossRef]

Opt. Commun.

M. Piché, Opt. Commun. 86, 156 (1991).
[CrossRef]

Opt. Lett.

Other

A. E. Siegman, Lasers (University Science, Mill Valley, Calif., 1986), Chaps. 16 and 19.

J. D. Kafka, M. L. Watts, T. Baer, in Conference on Lasers and Electro-Optics, Vol. 10 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), paper JMB3.

L. Spinelli, B. Couillaud, N. Goldblatt, D. K. Negus, in Conference on Lasers and Electro-Optics, Vol. 10 of 1991 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1991), paper CPDP7.

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Figures (4)

Fig. 1
Fig. 1

Z-type four-mirror cavity under consideration.

Fig. 2
Fig. 2

Normalized output power (solid curve) and residual cw gain (dashed curve) as a function of nonlinearity K for the sagittal component of a symmetrical cavity with L13 = L24 = 75 cm.

Fig. 3
Fig. 3

Beam profile at the center of the laser rod, for a beam traveling from M1 to M2, for the same parameters as in Fig. 2. Curve 1 is obtained in the cw regime (K = 0), curve 2 corresponds to K = 2π, and curve 3 corresponds to K = 3π.

Fig. 4
Fig. 4

Differential gain per unit of SPM as a function of the distance L12 between mirrors M1 and M2 (a) for a symmetrical cavity with L13 = L24 = 75 cm and (b) for a nonsymmetrical cavity with L13 = 75 cm and L24 = 125 cm. SAG, sagittal component; TAN, tangential component.

Equations (1)

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G ( x ) = exp [ g 0 exp ( - 2 x 2 / W p 2 ) 1 + I + ( x ) + I - ( x ) ] ,

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