Phase-sensitive swept-source interferometry for absolute ranging with application to measurements of group refractive index and thickness
| Autor: | Eric D. Moore, Robert R. McLeod |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Materials science
medicine.diagnostic_test Orders of magnitude (temperature) business.industry Physics::Optics Ranging Equipment Design Atomic and Molecular Physics and Optics Equipment Failure Analysis Interferometry Refractometry Lidar Optics Optical coherence tomography medicine Continuous wave Computer-Aided Design Reflectometry business Refractive index |
| Zdroj: | Optics express. 19(9) |
| ISSN: | 1094-4087 |
| Popis: | Interferometric range measurements using a wavelength-tunable source form the basis of several measurement techniques, including optical frequency domain reflectometry (OFDR), swept-source optical coherence tomography (SS-OCT), and frequency-modulated continuous wave (FMCW) lidar. We present a phase-sensitive and self-referenced approach to swept-source interferometry that yields absolute range measurements with axial precision three orders of magnitude better than the transform-limited axial resolution of the system. As an example application, we implement the proposed method for a simultaneous measurement of group refractive index and thickness of an optical glass sample. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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