Abstract

A fast, ultrafine-tunable delay line at 1550 nm is demonstrated by use of acousto-optic pulse shaping. Delays of up to 30 ps can be achieved without any optical readjustment. The delay is linear to the rf center frequency applied to the acousto-optic modulator and is fully electronic. It takes only 3 µs to switch between different time slots, irrespective of the time separation in the tuning range of 30 ps; for a smaller tuning range the tuning speed can be faster. The tuning resolution and range depend on the choice of system parameters. The pulse energy can be regulated by rf power.

© 1998 Optical Society of America

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References

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    [CrossRef]
  5. A. M. Weiner, D. E. Leaird, J. S. Patel, and J. R. Wullert, IEEE J. Quantum Electron. 28, 908 (1992).
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    [CrossRef] [PubMed]
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    [CrossRef]
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1997 (2)

J. X. Tull, M. A. Dugan, and W. S. Warren, Adv. Magn. Opt. Reson. 20, 1 (1997).
[CrossRef]

M. A. Dugan, J. X. Tull, and W. S. Warren, J. Opt. Soc. Am. B 14, 1 (1997).
[CrossRef]

1996 (1)

1994 (2)

1993 (1)

1992 (1)

A. M. Weiner, D. E. Leaird, J. S. Patel, and J. R. Wullert, IEEE J. Quantum Electron. 28, 908 (1992).
[CrossRef]

1989 (1)

M. B. Danailov and I. P. Christov, J. Mod. Opt. 36, 725 (1989).
[CrossRef]

1969 (1)

E. B. Treacy, IEEE J. Quantum Electron. QE-5, 454 (1969).
[CrossRef]

Christov, I. P.

M. B. Danailov and I. P. Christov, J. Mod. Opt. 36, 725 (1989).
[CrossRef]

Chu, K. C.

Danailov, M. B.

M. B. Danailov and I. P. Christov, J. Mod. Opt. 36, 725 (1989).
[CrossRef]

Dienes, A.

Dugan, M. A.

J. X. Tull, M. A. Dugan, and W. S. Warren, Adv. Magn. Opt. Reson. 20, 1 (1997).
[CrossRef]

M. A. Dugan, J. X. Tull, and W. S. Warren, J. Opt. Soc. Am. B 14, 1 (1997).
[CrossRef]

Glesk, I.

I. Glesk, J. P. Sokoloff, and P. R. Prucnal, Electron. Lett. 30, 339 (1994).
[CrossRef]

Goswami, D.

Haus, H. A.

H. A. Haus, Waves and Fields in Optoelectronics (Prentice-Hall, Englewood Cliffs, N.J., 1984).

Heritage, J. P.

Hillegas, C. W.

Kwong, K. F.

Leaird, D. E.

A. M. Weiner, D. E. Leaird, J. S. Patel, and J. R. Wullert, IEEE J. Quantum Electron. 28, 908 (1992).
[CrossRef]

Mahoney, K. M.

Patel, J. S.

A. M. Weiner, D. E. Leaird, J. S. Patel, and J. R. Wullert, IEEE J. Quantum Electron. 28, 908 (1992).
[CrossRef]

Prucnal, P. R.

I. Glesk, J. P. Sokoloff, and P. R. Prucnal, Electron. Lett. 30, 339 (1994).
[CrossRef]

Sokoloff, J. P.

I. Glesk, J. P. Sokoloff, and P. R. Prucnal, Electron. Lett. 30, 339 (1994).
[CrossRef]

Strickland, D.

Treacy, E. B.

E. B. Treacy, IEEE J. Quantum Electron. QE-5, 454 (1969).
[CrossRef]

Tull, J. X.

Warren, W. S.

Weiner, A. M.

K. M. Mahoney and A. M. Weiner, Opt. Lett. 21, 812 (1996).
[CrossRef] [PubMed]

A. M. Weiner, D. E. Leaird, J. S. Patel, and J. R. Wullert, IEEE J. Quantum Electron. 28, 908 (1992).
[CrossRef]

Wullert, J. R.

A. M. Weiner, D. E. Leaird, J. S. Patel, and J. R. Wullert, IEEE J. Quantum Electron. 28, 908 (1992).
[CrossRef]

Yankelevich, D.

Adv. Magn. Opt. Reson. (1)

J. X. Tull, M. A. Dugan, and W. S. Warren, Adv. Magn. Opt. Reson. 20, 1 (1997).
[CrossRef]

Electron. Lett. (1)

I. Glesk, J. P. Sokoloff, and P. R. Prucnal, Electron. Lett. 30, 339 (1994).
[CrossRef]

IEEE J. Quantum Electron. (2)

A. M. Weiner, D. E. Leaird, J. S. Patel, and J. R. Wullert, IEEE J. Quantum Electron. 28, 908 (1992).
[CrossRef]

E. B. Treacy, IEEE J. Quantum Electron. QE-5, 454 (1969).
[CrossRef]

J. Mod. Opt. (1)

M. B. Danailov and I. P. Christov, J. Mod. Opt. 36, 725 (1989).
[CrossRef]

J. Opt. Soc. Am. B (1)

Opt. Lett. (3)

Other (1)

H. A. Haus, Waves and Fields in Optoelectronics (Prentice-Hall, Englewood Cliffs, N.J., 1984).

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Figures (3)

Fig. 1
Fig. 1

Ultrafast laser pulse shaping by use of acousto-optic modulation. Changing the rf by an amount β imposes a linear phase shift with frequency on the spectrum, which ends up generating a delayed pulse. The optical paths traversed by the pulses produced from two different rf’s are compared.

Fig. 2
Fig. 2

Experimental data showing the delays generated by different rf center-frequency controls in 5-MHz steps centered at 150 MHz. The data show a 0.37-ps/MHz delay, in the excellent agreement with theoretical prediction. The broadening effect toward both edges of the tuning window comes from higher-order effects of the zero-dispersion line (for this figure, θout=50.8°) and is discussed in the text.

Fig. 3
Fig. 3

Delay and pulse-width broadening as functions of rf driving frequency. The data points are from the experimental data. The theoretical curves are drawn according to the equations given in the text.

Equations (4)

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Δt=αβ/Vac,
α=-2πcf/ω02Λ cosθout,
ΔLdelay=OB+BC+OD=fΔθdsin θin+sin θout/cos θout,
ΔLbroad=ΔLdelay tanθoutdθout

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