Optimized Photodetection And Light Sources For Multi-Mode Fiber Optic Sensors

Douglas N. Modlin

doi:10.1117/12.945248

21 June 1988 Optimized Photodetection And Light Sources For Multi-Mode Fiber Optic Sensors

Douglas N. Modlin

Proceedings Volume 0906, Optical Fibers in Medicine III; (1988) https://doi.org/10.1117/12.945248
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

Instrumentation requirements for sensors based on the measurement of light passing through multi-mode fiber optics are discussed. A model is presented which treats the light source, optics, fiber optic sensor, and photodetector as an integrated system regardless of the mechanism of signal transduction, e.g. absorbance, fluorescence, etc. Analytical models for prediction of the performance of incandescent and flash lamps are presented along with comparative experimental data. Photodetection schemes utilizing solid state photodiodes and photomultiplier tubes are analyzed and analytical models for prediction of detection limits are presented. Criteria for optimization of the overall system performance are laid out.

Citation Download Citation

Douglas N. Modlin "Optimized Photodetection And Light Sources For Multi-Mode Fiber Optic Sensors", Proc. SPIE 0906, Optical Fibers in Medicine III, (21 June 1988); https://doi.org/10.1117/12.945248

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