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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 19 — Sep. 14, 2009
  • pp: 16415–16422

Enhanced dispersion compensation capability of angular elements based on beam expansion

Rui Du, Runhua Jiang, and Ling Fu  »View Author Affiliations

Optics Express, Vol. 17, Issue 19, pp. 16415-16422 (2009)

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We demonstrate that beam size manipulation plays an important role in dispersion compensation. With expanded beam, the maximal negative group delay dispersion (GDD) provided by angular elements increases by an order of magnitude compared with original beam. Both calculation and experimental results show that a modest 2 × and 4 × expanded beams can improve dispersion compensation capability of prisms or acousto-optical deflectors: the restored minimal pulse width decreases by 50% and the corresponding distance between angular elements is shortened more than 70 cm. These findings will be helpful for designing dispersion compensation schemes for femtosecond pulse laser application systems such as multiphoton microscopy or laser micromachining.

© 2009 OSA

OCIS Codes
(230.1040) Optical devices : Acousto-optical devices
(320.5520) Ultrafast optics : Pulse compression
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Ultrafast Optics

Original Manuscript: May 18, 2009
Revised Manuscript: July 8, 2009
Manuscript Accepted: July 10, 2009
Published: August 31, 2009

Rui Du, Runhua Jiang, and Ling Fu, "Enhanced dispersion compensation capability of angular elements based on beam expansion," Opt. Express 17, 16415-16422 (2009)

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