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Proceedings Paper

Generation and measurement of ultrashort pulses from the Stanford Superconducting Accelerator free-electron laser
Author(s): Bruce A. Richman; Kenneth W. DeLong; Rick P. Trebino
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Paper Abstract

We present results of frequency resolved optical gating (FROG) measurements on the superconducting accelerator (SCA) mid-IR free-electron laser (FEL) at Stanford University. FROG retrieves complete amplitude and phase content of an optical pulse. First, we review the properties of FELs including the ability to tune wavelength and pulse length. In addition, the electron beam driving the FEL often affects the optical pulse shape. The SCA mid-IR FEL currently operates at wavelengths between 4 micrometers and 10 micrometers and its pulse length can be varied from 700 fs to 2 ps. We then describe details of the experimental layout and procedures particular to FELs and to the mid-IR. Finally, we show FROG measurements on the FEL including examples of nearly transform limited pulses, frequency chirped pulses, and pulses distorted by atmospheric water vapor absorption.

Paper Details

Date Published: 10 April 1995
PDF: 12 pages
Proc. SPIE 2377, Generation, Amplification, and Measurement of Ultrashort Laser Pulses II, (10 April 1995); doi: 10.1117/12.206405
Show Author Affiliations
Bruce A. Richman, Stanford Univ. (United States)
Kenneth W. DeLong, Sandia National Lab. (United States)
Rick P. Trebino, Sandia National Lab. (United States)

Published in SPIE Proceedings Vol. 2377:
Generation, Amplification, and Measurement of Ultrashort Laser Pulses II
Christopher P. P. Barty; Frank W. Wise, Editor(s)

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