Multi-carrier channeled polarimetry for photoelastic modulator systems
| Autor: | Andrey Alenin, Michael E. Gehm, Farhana Bashar, J. Scott Tyo |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Signal processing
Photoelastic modulator Computer science business.industry Polarimetry 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Noise (electronics) Atomic and Molecular Physics and Optics 010309 optics Set (abstract data type) symbols.namesake Fourier transform Optics Modulation 0103 physical sciences symbols Electronic engineering Sensitivity (control systems) 0210 nano-technology business |
| Zdroj: | Optics Letters. 43:5789 |
| ISSN: | 1539-4794 0146-9592 |
| Popis: | Photoelastic modulator-based polarimeters use multi-carrier modulation schemes that are more complicated than the single carriers of rotating optics. Current state-of-the-art reconstruction implementations favor mathematical simplicity by using significantly abridged subsets of channels. In this Letter, we extend our generalized channeled polarimetry principles to address the challenges associated with multi-carrier modulation schemes. We demonstrate the performance forfeited by existing systems through the use of an incomplete set of information channels, as well as propose a set of more optimal system parameters that achieve better reconstruction noise characteristics. The overall improvement corresponds to a better sensitivity of up to a factor of six. |
| Databáze: | OpenAIRE |
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