5 April 1989 Nearly Autofocusing Cavity For Fiberoptic Sensor Probes
Author Affiliations +
Proceedings Volume 1014, Micro-Optics; (1989) https://doi.org/10.1117/12.949420
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany
An original probe design for multimode optical fiber sensors, making use of a transducer, is presented. The probe is constituted by two facing quarter pitch graded-index (GRIN) microlenses which confine the transducer: the first GRIN is fixed to the fiber, while the other has a reflecting end face. The resultant micro-optical system works as a "nearly autofocusing cavity", which improves the coupling between the fiber and the transducer and shows a relatively low insertion loss.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. G. Mignani, A. G. Mignani, M. Brenci, M. Brenci, G. Conforti, G. Conforti, A. Mencaglia, A. Mencaglia, } "Nearly Autofocusing Cavity For Fiberoptic Sensor Probes", Proc. SPIE 1014, Micro-Optics, (5 April 1989); doi: 10.1117/12.949420; https://doi.org/10.1117/12.949420

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