Modeling and analysis of laser active interference optical path
| Autor: | Shan Congmiao, Jianying Ren, Chen Jianbiao, Yanzhong Zhao, Huayan Sun |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
Distributed feedback laser Geometrical optics business.industry Astrophysics::Instrumentation and Methods for Astrophysics Michelson interferometer Physical optics Interference (wave propagation) Mach–Zehnder interferometer law.invention Optics Optical path law business Optical path length Computer Science::Information Theory |
| Zdroj: | AOPC 2017: Fiber Optic Sensing and Optical Communications. |
| DOI: | 10.1117/12.2284771 |
| Popis: | By using the geometrical optics and physical optics method, the models of wedge plate interference optical path, Michelson interferometer and Mach Zehnder interferometer thus three different active interference pattern are built. The optical path difference (OPD) launched by different interference patterns, fringe spacing and contrast expression have been derived. The results show that far field interference peak intensity of the wedge plate interference is small, so the detection distance is limited, Michelson interferometer with low contrast affects the performance of detection system, Mach Zehnder interferometer has greater advantages in peak intensity, the variable range of interference fringe spacing and contrast ratio. The results of this study are useful for the theoretical research and practical application of laser active interference detection. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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