Generation and measurement of ultrashort pulses from the Stanford Superconducting Accelerator free-electron laser

Bruce A. Richman; Kenneth W. DeLong; Rick P. Trebino

doi:10.1117/12.206405

10 April 1995 Generation and measurement of ultrashort pulses from the Stanford Superconducting Accelerator free-electron laser

Bruce A. Richman, Kenneth W. DeLong, Rick P. Trebino

Author Affiliations +

Proceedings Volume 2377, Generation, Amplification, and Measurement of Ultrashort Laser Pulses II; (1995) https://doi.org/10.1117/12.206405
Event: Photonics West '95, 1995, San Jose, CA, United States

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.

Citation Download Citation

Bruce A. Richman, Kenneth W. DeLong, and Rick P. Trebino "Generation and measurement of ultrashort pulses from the Stanford Superconducting Accelerator free-electron laser", Proc. SPIE 2377, Generation, Amplification, and Measurement of Ultrashort Laser Pulses II, (10 April 1995); https://doi.org/10.1117/12.206405

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