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| TUAAU01 |
Analysis of the Periodic Spectral Gaps Observed in the Tuning Range of FELs with a Partial Waveguide
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184 |
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- R. Prazeres
LCP/CLIO, ORSAY CEDEX
- F. Glotin, J.-M. Ortega
CLIO/ELISE/LCP, Orsay
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A phenomenon of “Power Gaps“ is observed in far-infrared FELs using partial waveguiding : the laser power falls down to zero at some particular wavelengths, whatever the beam adjustments are. We show that this effect is related to losses increasing and hole coupling variations due to the waveguide inside the optical cavity. A code including diffraction effects exhibits good agreement with the measurements.
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Slides
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