Application Of Pulse Compression And Shaping To The FEL Photoelectric Injector

Dinh C Nguyen; David E Watkins; Michael E Weber

doi:10.1117/12.944437

27 June 1988 Application Of Pulse Compression And Shaping To The FEL Photoelectric Injector

Dinh C Nguyen, David E Watkins, Michael E Weber

Proceedings Volume 0895, Laser Optics for Intracavity and Extracavity Applications; (1988) https://doi.org/10.1117/12.944437
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

We discuss the application of self-phase modulation and grating pulse compression to the generation of temporally trapezoidal optical pulses for controlling the electron beam emittance and energy spread in an FEL photoelectric injector. Pulse compression in a single-stage pulse compressor, with background reduction based on the nonlinear birefringence of the optical fiber, yields 3-ps, compressed pulses without background pedestals or sidelobes. Trapezoidal, flat-topped pulses with 20-ps FWHM and 4-ps risetime have been obtained through self-phase modulation and group-velocity dispersion of the 3-ps pulses in a second fiber. Pulse shaping through Fourier transform amplitude and phase masking in the frequency domain and the amplification of the trapezoidal pulses are also discussed.

Citation Download Citation

Dinh C Nguyen, David E Watkins, and Michael E Weber "Application Of Pulse Compression And Shaping To The FEL Photoelectric Injector", Proc. SPIE 0895, Laser Optics for Intracavity and Extracavity Applications, (27 June 1988); https://doi.org/10.1117/12.944437

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