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Proceedings Paper

Holographic frequency resolved optical gating for spatio-temporal characterization of ultrashort optical pulse
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Paper Abstract

We introduce a novel method for characterizing the spatio-temporal evolution of ultrashort optical field by recording the spectral hologram of frequency resolved optical gating (FROG) trace. We show that FROG holography enables the measurement of phase (up to an overall constant) and group delay of the pulse which cannot be measured by conventional FROG method. To illustrate our method, we perform numerical simulation to generate holographic collinear FROG (cFROG) trace of a chirped optical pulse and retrieve its complex profile at multiple locations as it propagates through a hypothetical dispersive medium. Further, we experimentally demonstrate our method by retrieving a 67 fs pulse at three axial locations in the vicinity of focus of an objective lens and compute its group delay.

Paper Details

Date Published: 17 September 2014
PDF: 8 pages
Proc. SPIE 9198, Ultrafast Nonlinear Imaging and Spectroscopy II, 91980E (17 September 2014); doi: 10.1117/12.2062516
Show Author Affiliations
Nikhil Mehta, The Pennsylvania State Univ. (United States)
Chuan Yang, The Pennsylvania State Univ. (United States)
Yong Xu, Virginia Polytechnic Institute and State Univ. (United States)
Zhiwen Liu, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 9198:
Ultrafast Nonlinear Imaging and Spectroscopy II
Zhiwen Liu, Editor(s)

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