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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 10 — May. 12, 2008
  • pp: 7083–7090

Polarization and energy stability of filamentation-generated few-cycle pulses

A. K. Dharmadhikari, J. A. Dharmadhikari, F. A. Rajgara, and D. Mathur  »View Author Affiliations

Optics Express, Vol. 16, Issue 10, pp. 7083-7090 (2008)

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Polarization properties and energy stability are measured for few-cycle pulses that are generated by filamentation in dual Ar-filled tubes in tandem. The dual-tube geometry enhances the contribution of self-phase modulation to spectral broadening. The polarization extinction ratio (I/I) is improved for the beam transmitted through the second tube compared to the first tube and of the incident laser beam. Polarization control of few-cycle pulses is realized in simple fashion by a half-wave plate placed prior to the dual-tube assembly. We show that intensity clamping in the filament affords a major advantage in accomplishing a significant reduction in energy fluctuations compared to those inherent in the incident laser beam.

© 2008 Optical Society of America

OCIS Codes
(320.5520) Ultrafast optics : Pulse compression
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Ultrafast Optics

Original Manuscript: March 17, 2008
Revised Manuscript: April 25, 2008
Manuscript Accepted: April 28, 2008
Published: May 1, 2008

A. K. Dharmadhikari, J. A. Dharmadhikari, F. A. Rajgara, and D. Mathur, "Polarization and energy stability of filamentation-generated few-cycle pulses," Opt. Express 16, 7083-7090 (2008)

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