Abstract

We have used coherent photon seeding to reduce the noise in an actively mode-locked extended-cavity semiconductor laser. Feedback is provided by an auxiliary cavity terminated either by a wedge plate or by a phase-conjugate mirror. Both conventional and phase-conjugate feedback can reduce the low-frequency noise components (0–5  MHz) by as much as 36  dB, hence drastically reducing the pulse fluctuations. A noise reduction of as much as 18  dB is also observed in the 0.01–3.0-GHz frequency range. We obtained these results while preserving the pulse duration (26  ps) and improving the time–bandwidth product.

© 1998 Optical Society of America

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References

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1997 (1)

D. Gay and N. McCarthy, Opt. Commun. 137, 83 (1997).
[CrossRef]

1996 (1)

N. I. Michailov and M. Chamel, Opt. Quantum Electron. 28, 653 (1996).
[CrossRef]

1994 (1)

1993 (1)

H. Kawaguchi and A. K. Sarwar, Appl. Phys. Lett. 62, 2164 (1993).
[CrossRef]

1992 (3)

D. Sun and Y. Yamamoto, Appl. Phys. Lett. 60, 1286 (1992).
[CrossRef]

J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 89, 240 (1992).
[CrossRef]

N. McCarthy, S. Mailhot, and J.-F. Cormier, Opt. Commun. 88, 403 (1992).
[CrossRef]

1991 (3)

C. J. Hooker, J. M. D. Lister, and I. N. Ross, Opt. Commun. 80, 375 (1991).
[CrossRef]

D. S. Peter, P. Beaud, W. Hodel, and H. P. Weber, Opt. Lett. 16, 405 (1991).
[CrossRef] [PubMed]

J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 81, 408 (1991).
[CrossRef]

1990 (2)

P. Beaud, J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 80, 31 (1990).
[CrossRef]

G. H. C. New, Opt. Lett. 15, 1306 (1990).
[CrossRef] [PubMed]

1986 (2)

J. M. Catherall and G. H. C. New, IEEE J. Quantum Electron. QE-22, 1593 (1986).
[CrossRef]

D. von der Linde, Appl. Phys. B 39, 201 (1986).
[CrossRef]

1982 (1)

Beaud, P.

D. S. Peter, P. Beaud, W. Hodel, and H. P. Weber, Opt. Lett. 16, 405 (1991).
[CrossRef] [PubMed]

P. Beaud, J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 80, 31 (1990).
[CrossRef]

Bi, J. Q.

J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 89, 240 (1992).
[CrossRef]

J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 81, 408 (1991).
[CrossRef]

P. Beaud, J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 80, 31 (1990).
[CrossRef]

Catherall, J. M.

J. M. Catherall and G. H. C. New, IEEE J. Quantum Electron. QE-22, 1593 (1986).
[CrossRef]

Chamel, M.

N. I. Michailov and M. Chamel, Opt. Quantum Electron. 28, 653 (1996).
[CrossRef]

Cormier, J.-F.

N. McCarthy, S. Mailhot, and J.-F. Cormier, Opt. Commun. 88, 403 (1992).
[CrossRef]

Feinberg, J.

Gay, D.

D. Gay and N. McCarthy, Opt. Commun. 137, 83 (1997).
[CrossRef]

Gellermann, W.

Hodel, W.

J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 89, 240 (1992).
[CrossRef]

J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 81, 408 (1991).
[CrossRef]

D. S. Peter, P. Beaud, W. Hodel, and H. P. Weber, Opt. Lett. 16, 405 (1991).
[CrossRef] [PubMed]

P. Beaud, J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 80, 31 (1990).
[CrossRef]

Hooker, C. J.

C. J. Hooker, J. M. D. Lister, and I. N. Ross, Opt. Commun. 80, 375 (1991).
[CrossRef]

Kawaguchi, H.

H. Kawaguchi and A. K. Sarwar, Appl. Phys. Lett. 62, 2164 (1993).
[CrossRef]

Lister, J. M. D.

C. J. Hooker, J. M. D. Lister, and I. N. Ross, Opt. Commun. 80, 375 (1991).
[CrossRef]

Mailhot, S.

N. McCarthy, S. Mailhot, and J.-F. Cormier, Opt. Commun. 88, 403 (1992).
[CrossRef]

McCarthy, N.

D. Gay and N. McCarthy, Opt. Commun. 137, 83 (1997).
[CrossRef]

N. McCarthy, S. Mailhot, and J.-F. Cormier, Opt. Commun. 88, 403 (1992).
[CrossRef]

Michailov, N. I.

N. I. Michailov and M. Chamel, Opt. Quantum Electron. 28, 653 (1996).
[CrossRef]

Möllmann, K.

New, G. H. C.

G. H. C. New, Opt. Lett. 15, 1306 (1990).
[CrossRef] [PubMed]

J. M. Catherall and G. H. C. New, IEEE J. Quantum Electron. QE-22, 1593 (1986).
[CrossRef]

Peter, D. S.

Ross, I. N.

C. J. Hooker, J. M. D. Lister, and I. N. Ross, Opt. Commun. 80, 375 (1991).
[CrossRef]

Sarwar, A. K.

H. Kawaguchi and A. K. Sarwar, Appl. Phys. Lett. 62, 2164 (1993).
[CrossRef]

Sun, D.

D. Sun and Y. Yamamoto, Appl. Phys. Lett. 60, 1286 (1992).
[CrossRef]

von der Linde, D.

D. von der Linde, Appl. Phys. B 39, 201 (1986).
[CrossRef]

Weber, H. P.

J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 89, 240 (1992).
[CrossRef]

D. S. Peter, P. Beaud, W. Hodel, and H. P. Weber, Opt. Lett. 16, 405 (1991).
[CrossRef] [PubMed]

J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 81, 408 (1991).
[CrossRef]

P. Beaud, J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 80, 31 (1990).
[CrossRef]

Yamamoto, Y.

D. Sun and Y. Yamamoto, Appl. Phys. Lett. 60, 1286 (1992).
[CrossRef]

Appl. Phys. B (1)

D. von der Linde, Appl. Phys. B 39, 201 (1986).
[CrossRef]

Appl. Phys. Lett. (2)

D. Sun and Y. Yamamoto, Appl. Phys. Lett. 60, 1286 (1992).
[CrossRef]

H. Kawaguchi and A. K. Sarwar, Appl. Phys. Lett. 62, 2164 (1993).
[CrossRef]

IEEE J. Quantum Electron. (1)

J. M. Catherall and G. H. C. New, IEEE J. Quantum Electron. QE-22, 1593 (1986).
[CrossRef]

Opt. Commun. (6)

C. J. Hooker, J. M. D. Lister, and I. N. Ross, Opt. Commun. 80, 375 (1991).
[CrossRef]

J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 81, 408 (1991).
[CrossRef]

N. McCarthy, S. Mailhot, and J.-F. Cormier, Opt. Commun. 88, 403 (1992).
[CrossRef]

D. Gay and N. McCarthy, Opt. Commun. 137, 83 (1997).
[CrossRef]

J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 89, 240 (1992).
[CrossRef]

P. Beaud, J. Q. Bi, W. Hodel, and H. P. Weber, Opt. Commun. 80, 31 (1990).
[CrossRef]

Opt. Lett. (4)

Opt. Quantum Electron. (1)

N. I. Michailov and M. Chamel, Opt. Quantum Electron. 28, 653 (1996).
[CrossRef]

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Figures (4)

Fig. 1
Fig. 1

Experimental setup used for CPS. BS’s, beam splitters.

Fig. 2
Fig. 2

Evolution of the feedback level required for reducing the low-frequency noise by 5  dB, as a function of the difference between the auxiliary cavity length and the extended cavity length.

Fig. 3
Fig. 3

(a), (b) Pulse temporal profiles without and with feedback; (c) pulse optical spectrum without and with feedback. Feedback level, 9×10-6; delay between the seeding pulse and the main pulse, 157  ps.

Fig. 4
Fig. 4

Pulse noise spectrum (a) in the 0.01–3.00-GHz bandwidth and (b) in the 0–5-MHz bandwidth without (upper trace) and with (lower trace) feedback. Feedback level, 9×10-6; delay between the seeding pulse and the main pulse, 157  ps. RBW, resolution bandwidth.

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