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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 7 — Apr. 1, 2009
  • pp: 962–964

Propagation dependence of chirp in Gaussian pulses and beams due to angular dispersion

Derong Li, Shaoqun Zeng, Qingming Luo, Pamela Bowlan, Vikrant Chauhan, and Rick Trebino  »View Author Affiliations


Optics Letters, Vol. 34, Issue 7, pp. 962-964 (2009)
http://dx.doi.org/10.1364/OL.34.000962


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Abstract

The chirp acquired by a Gaussian ultrashort pulse due to angular dispersion, unlike that of plane waves, increases nonlinearly with propagation distance and eventually asymptotes to a constant. However, this interesting result has never been directly measured. In this Letter, we use two-dimensional spectral interferometry to measure the propagation dependence of the chirp for Gaussian ultrashort pulses and beams with angular dispersion. The measured chirp as a function of propagation distance agreed well with theory. This work verifies both an equation and a measurement technique that will be useful for predicting or determining the pulse’s chirp in ultrafast optics experiments that contain angular dispersion.

© 2009 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(320.0320) Ultrafast optics : Ultrafast optics
(320.7100) Ultrafast optics : Ultrafast measurements

ToC Category:
Ultrafast Optics

History
Original Manuscript: November 26, 2008
Revised Manuscript: February 11, 2009
Manuscript Accepted: February 12, 2009
Published: March 19, 2009

Citation
Derong Li, Shaoqun Zeng, Qingming Luo, Pamela Bowlan, Vikrant Chauhan, and Rick Trebino, "Propagation dependence of chirp in Gaussian pulses and beams due to angular dispersion," Opt. Lett. 34, 962-964 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-7-962

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