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Updated: May 23, 2026

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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Highly efficient broadband conversion of light polarization by composite retarders
Svetoslav S Ivanov1, Andon A Rangelov, Nikolay V Vitanov
1Department of Physics, Sofia University, Sofia, Bulgaria. sivanov@phys.uni‑sofia.bg
Summary
Researchers developed efficient broadband polarization converters using sequences of ordinary retarders, inspired by quantum physics composite pulse techniques. This innovation offers a novel approach for manipulating light polarization across a wide spectrum.
Area of Science:
- Optics and Photonics
- Quantum Physics Analogies
Background:
- Polarization converters are crucial optical components.
- Existing broadband converters face efficiency limitations.
Purpose of the Study:
- To propose a novel design for highly efficient broadband polarization converters.
- To leverage principles from quantum physics composite pulses for optical applications.
Main Methods:
- Designing polarization converters using sequences of ordinary retarders.
- Rotating retarders at specific angles relative to their fast-polarization axes.
- Drawing analogies with composite pulse techniques in quantum physics.
Main Results:
- The proposed converters demonstrate high efficiency.
- The design enables broadband operation for polarization conversion.
- The method is inspired by quantum composite pulse sequences.
Conclusions:
- The novel sequence of ordinary retarders offers an efficient broadband polarization conversion method.
- This approach provides a new perspective for optical component design by applying quantum physics principles.
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