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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 22 — Aug. 1, 2007
  • pp: 5142–5146

Generation of a train of ultrashort pulses from a compact birefringent crystal array

B. Dromey, M. Zepf, M. Landreman, K. O'Keeffe, T. Robinson, and S. M. Hooker  »View Author Affiliations

Applied Optics, Vol. 46, Issue 22, pp. 5142-5146 (2007)

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A linear array of n calcite crystals is shown to allow the generation of a high contrast ( > 10 : 1 ) train of 2 n high energy ( > 100   μJ ) pulses from a single ultrafast laser pulse. Advantage is taken of the pulse-splitting properties of a single birefringent crystal, where an incident laser pulse can be split into two pulses with orthogonal polarizations and equal intensity, separated temporally in proportion to the thickness of the crystal traversed and the difference in refractive indices of the two optic axes. In the work presented here an array of seven calcite crystals of sequentially doubled thickness is used to produce a train of 128 pulses, each of femtosecond duration. Readily versatile properties such as the number of pulses in the train and variable mark-space ratio are realized from such a setup.

© 2007 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3300) Lasers and laser optics : Laser beam shaping
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.5550) Ultrafast optics : Pulses
(320.7160) Ultrafast optics : Ultrafast technology

ToC Category:
Lasers and Laser Optics

Original Manuscript: April 18, 2007
Revised Manuscript: May 30, 2007
Manuscript Accepted: May 30, 2007
Published: July 9, 2007

B. Dromey, M. Zepf, M. Landreman, K. O'Keeffe, T. Robinson, and S. M. Hooker, "Generation of a train of ultrashort pulses from a compact birefringent crystal array," Appl. Opt. 46, 5142-5146 (2007)

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