A simple and accurate digital speckle pattern interferometer (DSPI), that uses a single mode bidimensional fiber coupler as beam splitter is described. As a result, the in-plane or out-of-plane displacement components can be measured in real-time and also in an outdoor environment. Preliminary tests have been carried out using a HeNe laser. Further tests are now in progress; the flexibility and compactness of such a system lends itself to use for non-destructive testing of structures, difficult to analyze with a conventional optical arrangement.
Paoletti, D., SCHIRRIPA SPAGNOLO, G. (1993). Fiber optics DSPI for in situ diagnostics. JOURNAL OF OPTICS, 24(1), 7-10 [10.1088/0150-536X/24/1/002].
Fiber optics DSPI for in situ diagnostics
SCHIRRIPA SPAGNOLO, Giuseppe
1993-01-01
Abstract
A simple and accurate digital speckle pattern interferometer (DSPI), that uses a single mode bidimensional fiber coupler as beam splitter is described. As a result, the in-plane or out-of-plane displacement components can be measured in real-time and also in an outdoor environment. Preliminary tests have been carried out using a HeNe laser. Further tests are now in progress; the flexibility and compactness of such a system lends itself to use for non-destructive testing of structures, difficult to analyze with a conventional optical arrangement.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
