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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 14, Iss. 9 — Sep. 1, 1997
  • pp: 2348–2358

High-resolution acousto-optic shaping of unamplified and amplified femtosecond laser pulses

M. A. Dugan, J. X. Tull, and W. S. Warren  »View Author Affiliations

JOSA B, Vol. 14, Issue 9, pp. 2348-2358 (1997)

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We focus theoretically and experimentally on the fundamental limitations of spectral pulse shaping using an acousto-optic modulator. We analyze the role of the relative thickness of the interaction region as dictated by the acousto-optic Q parameter and show that varying Q allows flexibility in choosing between diffraction efficiency and pixels of resolution. We model and experimentally demonstrate the effects of potential nonidealities such as nonlinear acoustic attenuation. In addition, we derive a simple and intuitive expression to predict the magnitude of the distortions in the spatial profile generated by an acousto-optic-modulator spectral light modulator. Finally, we demonstrate amplification of acousto-optic-modulator-generated shaped pulses for the first time.

© 1997 Optical Society of America

M. A. Dugan, J. X. Tull, and W. S. Warren, "High-resolution acousto-optic shaping of unamplified and amplified femtosecond laser pulses," J. Opt. Soc. Am. B 14, 2348-2358 (1997)

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