1 / 4

“Circular” Polarization Control Options

This document explores advanced techniques for achieving circular polarization control in various configurations, including planar, helical, and crossed pairs at harmonic frequencies. It highlights the operation of different configurations in saturation to optimize polarization efficiency, achieving over 90% stability with varying switching speeds. Challenges such as m-bunching preservation in bending systems and fluctuations in polarization are discussed. The application of pulsed phase shifters for fast polarization control is emphasized, along with the trade-offs between stability and performance.

mavis
Télécharger la présentation

“Circular” Polarization Control Options

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. “Circular” Polarization Control Options

  2. Planar + Helical (~6 m) Planar (x) APU APU APU operate near saturation 3 to 4 two-meter APPLEs ~3 to 4LGto reach saturation and produce dominate Pc • Planar + Crossed Planar (2-4 m) Planar (x) APU APU 1 or 2 two-meter APPLE, in planar mode (y) ~1.3LGto have equal Py operate near saturation Fast polarization control with pulsed phase shifter • Planar + Crossed Pair at 2nd Harmonic (2 m each) Planar (x) APU APU 2-m APPLEs in crossed configuration tuned to 2nd harmonic operate in saturation Fast polarization control with pulsed phase shifter

  3. Achromatic and isochronous bend Achromatic and isochronous bend must preserve m-bunching at 1 nm scale  very challenging!

  4. “Circular” Polarization Control Options • Planar (to near saturation) + Helical (~6 m) • Stable • >90% polarization • Slow switching • Planar (to near saturation) + Crossed Planar (2-3 m) • ~80% polarization • fast switching • may have fluctuations • Planar + Crossed Pair at 2ndHarmonic (1-2 m each) • Stable • ~90% • fast switching • ~1% of fundamental power • Planar + Bends to Separate m-Bunched Beam • + Crossed Pair at 1stHarmonic (1-2 m each) • Stable • ~90%, fast switching • not sure m-bunching can be preserved in realistic bending system

More Related