Abstract

We report what is to our knowledge the lowest phase and amplitude noise characteristics achieved to date in a 10-GHz pulse train produced by the active harmonic mode locking of an external-cavity semiconductor diode laser. Supermode noise has also been suppressed below -140 dBc/Hz by use of a high-finesse fiber Fabry–Perot etalon as an intracavity filter. Novel noise sideband measurements that extend to the Nyquist offset frequency suggest a significant advantage in using harmonic (rather than fundamental) mode locking to produce ultralow-noise pulse trains, owing to the relationship between the noise roll-off frequency and the fundamental cavity frequency.

© 2002 Optical Society of America

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2001

T. Yilmaz, C. M. DePriest, and P. J. Delfyett, Jr., Electron. Lett. 37, 1338 (2001).
[CrossRef]

2000

1993

1990

D. J. Derickson, A. Mar, and J. E. Bowers, Electron. Lett. 26, 2026 (1990).
[CrossRef]

1972

M. F. Becker, D. J. Kuizenga, and A. E. Siegman, J. Quantum Electron. 8, 687 (1972).
[CrossRef]

Becker, M. F.

M. F. Becker, D. J. Kuizenga, and A. E. Siegman, J. Quantum Electron. 8, 687 (1972).
[CrossRef]

Bowers, J. E.

D. J. Derickson, A. Mar, and J. E. Bowers, Electron. Lett. 26, 2026 (1990).
[CrossRef]

Delfyett, Jr., P. J.

T. Yilmaz, C. M. DePriest, and P. J. Delfyett, Jr., Electron. Lett. 37, 1338 (2001).
[CrossRef]

DePriest, C. M.

T. Yilmaz, C. M. DePriest, and P. J. Delfyett, Jr., Electron. Lett. 37, 1338 (2001).
[CrossRef]

Derickson, D. J.

D. J. Derickson, A. Mar, and J. E. Bowers, Electron. Lett. 26, 2026 (1990).
[CrossRef]

Grein, M. E.

Harvey, G. T.

Haus, H. A.

Ippen, E. P.

Kolodziejski, L. A.

Koontz, E. M.

Kuizenga, D. J.

M. F. Becker, D. J. Kuizenga, and A. E. Siegman, J. Quantum Electron. 8, 687 (1972).
[CrossRef]

Mar, A.

D. J. Derickson, A. Mar, and J. E. Bowers, Electron. Lett. 26, 2026 (1990).
[CrossRef]

Mollenauer, L. F.

Ram, R.

F. Rana and R. Ram, in Conference on Electro-Optics and Lasers (CLEO), Vol. 56 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2001), paper CMB2.

Rana, F.

F. Rana and R. Ram, in Conference on Electro-Optics and Lasers (CLEO), Vol. 56 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2001), paper CMB2.

Shan, X.

X. Shan and D. M. Spirit, Electron. Lett. 29, 979 (1993).
[CrossRef]

Siegman, A. E.

M. F. Becker, D. J. Kuizenga, and A. E. Siegman, J. Quantum Electron. 8, 687 (1972).
[CrossRef]

Spirit, D. M.

X. Shan and D. M. Spirit, Electron. Lett. 29, 979 (1993).
[CrossRef]

Thoen, E. R.

Yilmaz, T.

T. Yilmaz, C. M. DePriest, and P. J. Delfyett, Jr., Electron. Lett. 37, 1338 (2001).
[CrossRef]

Electron. Lett.

T. Yilmaz, C. M. DePriest, and P. J. Delfyett, Jr., Electron. Lett. 37, 1338 (2001).
[CrossRef]

Electron. Lett.

D. J. Derickson, A. Mar, and J. E. Bowers, Electron. Lett. 26, 2026 (1990).
[CrossRef]

X. Shan and D. M. Spirit, Electron. Lett. 29, 979 (1993).
[CrossRef]

J. Quantum Electron.

M. F. Becker, D. J. Kuizenga, and A. E. Siegman, J. Quantum Electron. 8, 687 (1972).
[CrossRef]

Opt. Lett.

OSA Trends in Optics and Photonics Series

F. Rana and R. Ram, in Conference on Electro-Optics and Lasers (CLEO), Vol. 56 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2001), paper CMB2.

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Figures (3)

Fig. 1
Fig. 1

Experimental layout: F.I.’s Faraday isolators; OC, output coupler; M, mirror; G, microwave amplifier; OSA, optical spectrum analyzer; other abbreviations defined in text.

Fig. 2
Fig. 2

Mode-locked laser noise sidebands for (a) harmonic mode-locking and (b) fundamental mode locking at 10 GHz. Dark vertical lines, standard integration cutoff at 10 MHz.

Fig. 3
Fig. 3

Supermode-suppressed mode-locked laser characteristics showing (a) laser noise sidebands, (b) mode-locked autocorrelation trace, and (c) high-resolution mode-locked optical spectrum.

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