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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry van Driel
  • Vol. 29, Iss. 5 — May. 1, 2012
  • pp: 1125–1135

Temporal contrast degradation at the focus of ultrafast pulses from high-frequency spectral phase modulation

J. Bromage, C. Dorrer, and R. K. Jungquist  »View Author Affiliations

JOSA B, Vol. 29, Issue 5, pp. 1125-1135 (2012)

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The impact of high-frequency spectral phase modulation on the temporal contrast of ultrafast pulses is evaluated. Expressions are derived for the low-intensity pedestal produced by optical component surface roughness within pulse stretchers and compressors. Phase noise, added across the near-field of a spectrally dispersed beam, produces space–time coupling in the far-field or focal plane. The pedestal is swept across an area in the focal plane many times the size of the diffraction-limited spot. Simulations are performed for generic stretchers and compressors that show fundamentally different forms of temporal contrast degradation at focus.

© 2012 Optical Society of America

OCIS Codes
(320.5550) Ultrafast optics : Pulses
(320.7160) Ultrafast optics : Ultrafast technology

ToC Category:
Ultrafast Optics

Original Manuscript: October 27, 2011
Manuscript Accepted: November 26, 2011
Published: April 30, 2012

J. Bromage, C. Dorrer, and R. K. Jungquist, "Temporal contrast degradation at the focus of ultrafast pulses from high-frequency spectral phase modulation," J. Opt. Soc. Am. B 29, 1125-1135 (2012)

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