Synthesis of Multi-Wavelength Temporal Phase-Shifting Algorithms Optimized for High Signal-To-Noise Ratio and High Detuning Robustness Using the Frequency Transfer Function
Synthesis of single-wavelength temporal phase-shifting algorithms (PSA) for interferometry is well-known and firmly based on the frequency transfer function (FTF) paradigm. Here we extend the singlewavelength FTF-theory to dual and multi-wavelength PSA-synthesis when several simultaneous laser-color...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | México |
| Institución: | Centro de Investigaciones en Óptica |
| Repositorio: | Repositorio Institucional CIO |
| OAI Identifier: | oai:cio.repositorioinstitucional.mx:1002/496 |
| Acceso en línea: | http://cio.repositorioinstitucional.mx/jspui/handle/1002/110 http://cio.repositorioinstitucional.mx/jspui/handle/1002/496 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/cti/1 |
| Sumario: | Synthesis of single-wavelength temporal phase-shifting algorithms (PSA) for interferometry is well-known and firmly based on the frequency transfer function (FTF) paradigm. Here we extend the singlewavelength FTF-theory to dual and multi-wavelength PSA-synthesis when several simultaneous laser-colors are present. The FTF-based synthesis for dual-wavelength (DW) PSA is optimized for high signal-to-noise ratio and minimum number of temporal phase-shifted interferograms. The DW-PSA synthesis herein presented may be used for interferometric contouring of discontinuous industrial objects. Also DW-PSA may be useful for DW shop-testing of deep free-form aspheres. As shown here, using the FTFbased synthesis one may easily find explicit DW-PSA formulae optimized for high signal-to-noise and high detuning robustness. To this date, no general synthesis and analysis for temporal DW-PSAs has been given; only ad hoc DW-PSAs formulas have been reported. Consequently, no explicit formulae for their s |
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