Abstract
A fiber optic electronic speckle pattern interferometry (ESPI) system has been demonstrated in which phase stepping was achieved at the frame rate of 25 Hz using a closed-loop control system. Satisfactory operation of the system was illustrated by producing correlation fringes by tilting a flat plate and using phase stepping to recover phase as a function of position on the plate. The expected linear dependence of phase on position was observed.
| Original language | English |
|---|---|
| Pages (from-to) | 180-184 |
| Number of pages | 5 |
| Journal | IEE Conference Publication |
| Issue number | 342 |
| Publication status | Published - 1991 |
| Event | 3rd International Conference on Holographic Systems, Components and Applications - Edinburgh, Scotl Duration: 16 Sept 1991 → 18 Sept 1991 |
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