Absolute optical ranging using low coherence interferometry
| Autor: | C. Y. Boisrobert, B. L. Danielson |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Physics
White light interferometry Optical fiber business.industry Materials Science (miscellaneous) Michelson interferometer Industrial and Manufacturing Engineering law.invention Interferometry Optics law Frequency domain Time domain Nyquist rate Business and International Management business Coherence (physics) |
| Zdroj: | Applied Optics. 30:2975 |
| ISSN: | 1539-4522 0003-6935 |
| DOI: | 10.1364/ao.30.002975 |
| Popis: | We describe a method for measuring submicrometer distances with an asymmetric fiber Michelson interferometer having an LED as a source of radiation. By measuring the phase slope of the Fourier components in the frequency domain, it is possible to locate the position of reflections with nanometer precision even in the presence of sample dispersion. The method is compatible with time domain sampling at the Nyquist rate which assures efficiency in data acquisition and processing. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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