Poincaré Sphere Visualization of n-Paddle Fiber Polarization Controller

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This Demonstration shows the output polarization state of a 2- or 3-paddle fiber polarization controller as a red arrow on a Poincaré sphere. The sphere represents the tilt angles , , with respect to the horizontal of the paddles in the polarization controller. The input polarization state, shown as a blue arrow, is interpreted as a linearly polarized light along the horizontal direction. The 2-paddle polarization controller consists of two concatenated quarter-wave plates, while the 3-paddle polarization controller consists of a half-wave plate in between two quarter-wave plates.

Contributed by: Debanuj Chatterjee (June 13)
Open content licensed under CC BY-NC-SA


The basic operation mechanism of a 3-paddle fiber polarization controller is shown at: https://www.youtube.com/watch?v=5O7TL2SUAlo


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