Share Email Print
cover

Proceedings Paper • new

100% robust and fast algorithm for second-harmonic-generation frequency-resolved optical gating
Author(s): Rana Jafari; Travis Jones; Rick Trebino
Format Member Price Non-Member Price
PDF $17.00 $21.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We demonstrate a novel algorithmic approach for second-harmonic-generation (SHG) frequency-resolved optical gating (FROG) that always converges and is also faster for complex pulses. It takes advantage of the Paley-Weiner Theorem for generating significantly better initial guesses. It also uses a multi-grid approach, which allows the algorithm to operate initially on smaller arrays for early iterations and only on the complete array for the final few iterations. We tested it on sets of twenty thousand noisy FROG traces and have achieved 100% convergence even for pulses with time-bandwidth products of 100.

Paper Details

Date Published: 4 March 2019
PDF: 8 pages
Proc. SPIE 10903, Real-time Measurements, Rogue Phenomena, and Single-Shot Applications IV, 109030N (4 March 2019); doi: 10.1117/12.2507511
Show Author Affiliations
Rana Jafari, Georgia Institute of Technology (United States)
Travis Jones, Georgia Institute of Technology (United States)
Rick Trebino, Georgia Institute of Technology (United States)


Published in SPIE Proceedings Vol. 10903:
Real-time Measurements, Rogue Phenomena, and Single-Shot Applications IV
Daniel R. Solli; Georg Herink; Serge Bielawski, Editor(s)

© SPIE. Terms of Use
Back to Top