Abstract
We present a demonstration and analysis of an industrialized design of a spatially dispersive displacement sensor, which is composed of an AlGaInP gain chip in visible range, optical assembly, and a spectrum analyzer. The sensor utilizes the spatial dispersion of focus from the optical assembly and wavelength spectrum's deviation induced by the displacement of the target. As a result, the sensor delivers a quick and simple way of measuring displacement. By adapting the magnification and resolution of the optical assembly, a displacement sensor with a middle measurement range, ∼10 μm, was obtained. However, we should note that 25 nm resolution is limited by the bandwidth and temperature fluctuation of the gain chip.
| Original language | English |
|---|---|
| Pages (from-to) | 6218-6222 |
| Number of pages | 5 |
| Journal | Applied optics |
| Volume | 46 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - 2007 Aug 20 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Engineering (miscellaneous)
- Electrical and Electronic Engineering
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Horng, J. B., Liao, J., Tsai, Y. J., Huang, Y. C., Hu, C., Tsau, S., Su, Y. K., & Chou, W. Y. (2007). Analysis of a spatially dispersive displacement sensor utilizing an AlGaInP chip. Applied optics, 46(24), 6218-6222. https://doi.org/10.1364/AO.46.006218