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07:56
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Variable ultrabroadband and narrowband composite polarization retarders
Thorsten Peters1, Svetoslav S Ivanov, Daniel Englisch
1Institut für Angewandte Physik, Technische Universität Darmstadt, Germany. thorsten.peters@physik.tu‐darmstadt.de
Applied Optics
|November 7, 2012
Summary
We developed new composite polarization retarders using stacked wave plates. These custom devices offer superior performance for ultrabroad or narrow bandwidth applications compared to commercial options.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Polarization retarders are crucial optical components for controlling light polarization.
- Existing compound retarders often have limitations in spectral bandwidth or performance.
Purpose of the Study:
- To propose and demonstrate novel composite polarization retarders.
- To achieve superior performance in both ultrabroad and narrow spectral bandwidths.
Main Methods:
- Designing composite retarder sequences using standard half-wave and quarter-wave retarders.
- Stacking retarders of equal thickness to create novel composite devices.
- Experimental validation of the proposed retarder designs.
Main Results:
- Demonstration of composite retarders capable of ultrabroad spectral bandwidth operation.
- Demonstration of composite retarders capable of narrow spectral bandwidth operation.
- Experimental results indicate performance exceeding commercially available compound retarders.
Conclusions:
- The proposed composite retarder designs offer a new method for achieving high-performance polarization control.
- These home-built devices represent an advancement over existing commercial compound retarders.
- The flexibility in design allows tailoring retarders for specific spectral bandwidth requirements.
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