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Optics Letters

Optics Letters

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  • Vol. 36, Iss. 10 — May. 15, 2011
  • pp: 1791–1793

Field-resolved characterization of femtosecond electromagnetic pulses with 400 THz bandwidth

Sebastian Thunich, Claudia Ruppert, Alexander W. Holleitner, and Markus Betz  »View Author Affiliations


Optics Letters, Vol. 36, Issue 10, pp. 1791-1793 (2011)
http://dx.doi.org/10.1364/OL.36.001791


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Abstract

We propose and demonstrate an ultrabroadband concept to characterize amplitude and phase changes of femtosecond pulses. The radiation is superimposed with the first subharmonic spectral components from the same laser source. This effective ω / 2 ω pulse pair induces a coherently controlled charge current in a time-integrating semiconductor detector. An interferometric variation of the time delay between the harmonically related components then reveals the electric field of the 2 ω part. This method is realized with the second harmonic of a compact Er:fiber source centered at 390 THz and a GaAs-based detector. Most strikingly, it is sensitive to π / 20 phase changes and can be utilized to analyze femtojoule pulses.

© 2011 Optical Society of America

OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(190.7110) Nonlinear optics : Ultrafast nonlinear optics

ToC Category:
Coherence and Statistical Optics

History
Original Manuscript: March 14, 2011
Revised Manuscript: April 1, 2011
Manuscript Accepted: April 1, 2011
Published: May 6, 2011

Citation
Sebastian Thunich, Claudia Ruppert, Alexander W. Holleitner, and Markus Betz, "Field-resolved characterization of femtosecond electromagnetic pulses with 400 THz bandwidth," Opt. Lett. 36, 1791-1793 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-10-1791

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