Modeling intensity-modulated characteristics of inclined-fiber receiving distance sensor with single mode illumination

Zhi Zhong; Huan Peng; Mingguang Shan; Lili Guo

doi:10.1117/12.869395

21 July 2010 Modeling intensity-modulated characteristics of inclined-fiber receiving distance sensor with single mode illumination

Zhi Zhong, Huan Peng, Mingguang Shan, Lili Guo

Author Affiliations +

Proceedings Volume 7749, 2010 International Conference on Display and Photonics; 774917 (2010) https://doi.org/10.1117/12.869395
Event: 2010 International Conference on Display and Photonics, 2010, Nanjing, China

Abstract

In order to study the reflective intensity-modulated characteristics of a two fiber distance sensor with one normal single mode fiber for illuminating and one inclined multimode fiber for receiving, a rigorous theoretical mode using approximating the illumination light exiting the single mode fiber as having a Gaussian intensity profile is established to describe the influence of the inclination angle of receiving fiber on the intensity-modulated characteristics of the sensor. Numerical simulation results indicate that the distance sensitivity of the sensor gets higher as the inclination angle increases and the sensitivity at an angle of 4° is nearly 7.65 times that of the sensitivity with 0°. Meanwhile, the blind region, linear range and peak position also get shifted in comparison with the parallel fiber distance sensor, and the performance of the fiber distance sensor can be optimized by adjusting the inclination angle of the receiving fiber.

Citation Download Citation

Zhi Zhong, Huan Peng, Mingguang Shan, and Lili Guo "Modeling intensity-modulated characteristics of inclined-fiber receiving distance sensor with single mode illumination", Proc. SPIE 7749, 2010 International Conference on Display and Photonics, 774917 (21 July 2010); https://doi.org/10.1117/12.869395

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