Fiber optic external perturbation sensor with analysis of intermode coupling by ring-wedge photodetector

Leszek R. Jaroszewicz; Idzi Merta

doi:10.1117/12.346856

30 April 1999 Fiber optic external perturbation sensor with analysis of intermode coupling by ring-wedge photodetector

Leszek R. Jaroszewicz, Idzi Merta

Proceedings Volume 3730, Optoelectronic and Electronic Sensors III; (1999) https://doi.org/10.1117/12.346856
Event: Optoelectronic and Electronic Sensors III, 1998, Jurata, Poland

Abstract

The construction and experimental results of fiber optic sensor using the ring-wedge photodetector is presented. As sensor head the sample of quasi-monomode optical fiber is used. Changes of intermodal interference condition, due to external perturbation, generated changes of output speckle pattern. This pattern differences are automatically recognized by neural processing. The pattern for neural processing is generated by suitable placed ring-wedge photodetector system.

Citation Download Citation

Leszek R. Jaroszewicz and Idzi Merta "Fiber optic external perturbation sensor with analysis of intermode coupling by ring-wedge photodetector", Proc. SPIE 3730, Optoelectronic and Electronic Sensors III, (30 April 1999); https://doi.org/10.1117/12.346856

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